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Widely Used Antibacterial Chemical May Impair Muscle Function

New submitter daleallan writes "Triclosan, which is widely used in consumer handsoaps, toothpaste, clothes, carpets and trash bags, impairs muscle function in animal studies, say researchers at UC Davis (abstract). It slows swimming in fish and reduces muscle strength in mice. It may even impair the ability of heart muscle cells to contract. The chemical is in everyone's home and pervasive in the environment, the lead researcher says. One million pounds of Triclosan is produced in the U.S. annually and it's found in waterways, fish, dolphins, human urine, blood and breast milk. The researchers say their findings 'Call for a dramatic reduction in use.' It's in my Colgate Total toothpaste, and in fact, preventing gingivitis is the only use that may be worthwhile, although this makes me think twice about continuing to brush with it." This isn't the first time Triclosan has been in the news over safety concerns.

252 comments

  1. Who would have thought... by korgitser · · Score: 5, Funny

    ... that a substance used to harm life would harm life?

    --
    FCKGW 09F9 42
    1. Re:Who would have thought... by HungryHobo · · Score: 5, Informative

      there's lots of things which harm only some kinds of life.

      Your eyes are protected by Lysozyme: enzymes which attack bacteria but it doesn't harm your eyes.

      Lots of things are harmful to one organism and not another: Theobromine is deadly to dogs but fairly harmless to us except in extreme quantities because we have enzymes which can handle it.

      Oxygen will kill many types of bacteria but we need it to live.

      Many anti-bacterials are simply far far far less toxic to us than to bacteria so it's not that surprising but it makes an awful rule of thumb.

    2. Re:Who would have thought... by captainpanic · · Score: 3, Insightful

      At least it has been banned from being used in the food industry! (Yes, it was used in plastics that came into direct contact with our own food until 2010).

      http://www.beyondpesticides.org/dailynewsblog/?p=3574

    3. Re:Who would have thought... by buchner.johannes · · Score: 4, Insightful

      Currently, you can make any products with new chemicals until they are banned. Should it be the burden of companies to prove that chemicals are safe before they can sell products?

      --
      NB: The message above might reflect my opinion right now, but not necessarily tomorrow or next year.
    4. Re:Who would have thought... by Anonymous Coward · · Score: 0

      I'm worried about the muscle control thing. You can hardly have a 'ring if confidence' if your muscles are all slack :(

      http://classicindianads.blogspot.co.uk/2008/11/colgate-dental-cream-classic-ad.html

    5. Re:Who would have thought... by Anonymous Coward · · Score: 1

      Everything is a chemical.

      You can't prove a negative.

      And everything is toxic in the right quantity, including water and oxygen.

    6. Re:Who would have thought... by Rei · · Score: 4, Insightful

      You can't prove a negative.

      Yeah you can, by exhausting the search space.

      Of course, we're not talking about "proof" here in the pure mathematical "exhaustive" sense, but in the statistical confidence sense, and more specifically, in requiring a basic set of health/environmental impact studies before a new chemical can be used. Which just seems like common sense. If one is worried about that being too onerous, then the burden could be varied depending on how similar they are to existing chemicals which have gone through the full battery of health studies.

      --
      We're practicing our labials.
    7. Re:Who would have thought... by TapeCutter · · Score: 2

      You can't prove a negative

      No, but you can demonstrate you meet minimum standards, such as a pre-defined maximum level of plutonium in your baby food.

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    8. Re:Who would have thought... by cbope · · Score: 1

      Well, perhaps if a chemical is *new*... you should first understand the risks and dangers of an unknown chemical before you start putting it into consumer products?

      It *IS* the burden for companies to produce safe products that are not dangerous to the people using them when used as designed. Especially when it is something we put in or on our bodies that can negatively affect health.

    9. Re:Who would have thought... by cyber-vandal · · Score: 1

      It should be the burden of companies to ensure that their products are safe. The fact that concerns have been raised about this chemical and no action has been taken means that the burden is very much on companies now.

    10. Re:Who would have thought... by rvw · · Score: 1, Interesting

      there's lots of things which harm only some kinds of life.

      .....

      Lots of things are harmful to one organism and not another.

      Take Arsenic. We know it as a deadly poison. We all eat or drink a few micrograms of arsenic each day. If you take that away and make 100% free arsenic food, test that on rats, it turns out that they die more quickly. Is this the same for humans? Nobody knows that, but this is the same with most food research. So let's assume that it works the same for humans.

      It simply shows that like most things, too little is not good, too much neither. Drink four liters of water each day, and you will probably die.

    11. Re:Who would have thought... by Rei · · Score: 5, Funny

      Hey, I've been around Slashdot long enough to learn that plutonium in baby food is healthy for babies, and anyone who says otherwise is a socialist hippie bent on destroying the global economy. ;)

      --
      We're practicing our labials.
    12. Re:Who would have thought... by Anonymous Coward · · Score: 2, Insightful

      Hmm, I drink just a touch over 4for liters of water every day...

    13. Re:Who would have thought... by kno3 · · Score: 4, Insightful

      You are going to die.

    14. Re:Who would have thought... by HungryHobo · · Score: 5, Funny

      Atomic oxygen is: fortunatly we have the enzyme Catalase in our cells to turn hydrogen peroxide into O2 and water rather than Atomic oxygen and water.

      Tell you what: I'll sit in a chamber filled with 100% pure oxygen for an hour and you do the same in a chamber filled with 100% pure nitrogen then we compare notes.

    15. Re:Who would have thought... by David+Hume · · Score: 5, Insightful

      Nassim Nicholas Taleb, the author of The Black Swan and Fooled by Randomness, has a book chapter coming out that addresses this danger. Prof. Teleb's draft chapter on Medicine, Convexity, and Opacity from his upcoming book, Antifragile: Things That Gain from Disorder, can be found at:

      http://www.fooledbyrandomness.com/medicine.pdf

      While the entire chapter is worth a read, at page 389 he observes:

      The “do you have evidence” fallacy, mistaking evidence of no harm for no evidence of harm, is similar to the one of misinterpreting NED (no evidence of disease) for evidence of no disease. This is the same error as mistaking absence of evidence for evidence of absence, the one that tends to affect smart and educated people, as if education made people more confirmatory in their responses and more liable to fall into simple logical errors.

      That may have been the case here. That is, for years no evidence of harm was mistaken for evidence of no harm.

      More generally, Prof. Taleb argues at page 376:

      Simple, quite simple decision rules and heuristics emerge from this chapter. Via negativa, of course (by removal of the unnatural): resort to medical techniques when the health payoff is very large (say, saving a life) and visibly exceeds its potential harm, such as incontrovertibly needed surgery or lifesaving medicine (penicillin). It is the same as with government intervention. This is squarely Thalesian, not Aristotelian (that is, decision making based on payoffs, not knowledge). For in these cases medicine has positive asymmetries —convexity effects— and the outcome will be less likely to produce fragility. Otherwise, in situations in which the benefits of a particular medicine, procedure, or nutritional or lifestyle modification appear small—say, those aiming for comfort—we have a large potential sucker problem (hence putting us on the wrong side of convexity effects).

    16. Re:Who would have thought... by Black+Parrot · · Score: 1, Insightful

      You can't prove a negative.

      Got a proof for that?

      --
      Sheesh, evil *and* a jerk. -- Jade
    17. Re:Who would have thought... by Mitchell314 · · Score: 2

      Just remember to not smoke in the chamber. It's bad for your lungs.

      --
      I read TFA and all I got was this lousy cookie
    18. Re:Who would have thought... by Lehk228 · · Score: 1

      GP will die of suffocation, rather unpleasant, but not nearly as unpleasant as being immolated in pure O2

      --
      Snowden and Manning are heroes.
    19. Re:Who would have thought... by d3ac0n · · Score: 1

      I dunno. A slow death from suffocation sounds MUCH worse than a rapid death by a pure O2 fed fire. Not that either would be pleasant, but if I HAD to choose, I'd rather have it over quickly.

      Although likely he wouldn't immolate. But his cig would burn REALLY fast. And the flame from that lighter? WOW!

      --
      Official Heretic from the "Church of Global Warming". Proven right thanks to whistle blowers. AGW = Flat Earth Theory
    20. Re:Who would have thought... by Joce640k · · Score: 2, Informative

      Death in 100% N2 would be via hypoxia - rather pleasant....

      --
      No sig today...
    21. Re:Who would have thought... by rayzat · · Score: 5, Funny

      Probably dead already. Zombies posting AC in order to hide the coming surge.

    22. Re:Who would have thought... by Anonymous Coward · · Score: 1

      Yup, researchers of a more humane execution method found that a mixture of nitrogen and argon is the most painless and least fear-inducing execution method. You feel drunk, then you pass out, then you die. It's used to kill pigs for slaughter.

    23. Re:Who would have thought... by GameboyRMH · · Score: 1
      --
      "When information is power, privacy is freedom" - Jah-Wren Ryel
    24. Re:Who would have thought... by drinkypoo · · Score: 2

      Isn't that how it works in the EU now? It's called the precautionary principle. You don't actually have to prove that they're safe of course, you only have to prove that they're not very harmful. A lot of substances were simply slapped on the list of safe items based on historical use, but a lot weren't, too.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    25. Re:Who would have thought... by nitehawk214 · · Score: 2, Insightful

      Drink four liters of water each day, and you will probably die.

      In fact, I can guarantee you will die.... eventually.

      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    26. Re:Who would have thought... by nitehawk214 · · Score: 1

      Just remember to not smoke in the chamber. It's bad for your lungs.

      Not when the chamber is filled with pure Nitrogen.

      Well I mean the pure Nitrogen is bad for your lungs... but at least you don't have to worry about smoking!

      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    27. Re:Who would have thought... by Anonymous Coward · · Score: 1

      Give it to the useless feeders. I say we stop all modern production of anything, caves my friends lets get back to the caves.

    28. Re:Who would have thought... by Anonymous Coward · · Score: 0

      In a chamber with nothing but pure O2, there's nothing present for it to combine with in a fire. O2 can only burn when there are other gases present.

    29. Re:Who would have thought... by X0563511 · · Score: 1

      Not really. He'll just pass out and die in his sleep.

      A 100% nitrogen atmosphere does not interfere with CO2 exchange. CO2 buildup is what causes us to sense suffocation. Without it your brain and body just start slowing down, and your consciousness is one of the first things to go in an attempt to conserve what energy your body has available.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    30. Re:Who would have thought... by MagusSlurpy · · Score: 2

      Except that similarity to existing chemicals that have been extensively tested is completely useless as an attribute for anticipating safety. Remember thalidomide? Thalidomide comes in two forms, known generally as isomers. It's like your hands - they're not identical, but rather, mirror images of each other. So one isomer of thalidomide is perfectly safe to use. . . and the other fits perfectly into your DNA, and provides a wonderfully bioactive spot for all kinds of shit to go down.

      Another way to think about it is like a key and lock - swap two of the teeth on your housekey, and you won't be able to turn the lock any longer.

      So no, you can't just go by similarities to well-understood chemicals.

      --
      My sister opened a computer store in Hawaii. She sells C shells by the seashore.
    31. Re:Who would have thought... by next_ghost · · Score: 1

      Drink four liters of water each day, and you will probably die.

      Nah, 4 liters a day is not a problem unless you drink it all at once. Granted, it's not particularly healthy but it won't harm you that much. On the other hand, if you need to drink that much water without doing some heavy physical activity or staying in very hot locations, you should definitely go see a doctor because it might be a sign of diabetes. Still, drinking too much salt-free water all at once can really kill you because it will upset the balance of electrolytes in your body.

    32. Re:Who would have thought... by legont · · Score: 1

      Yes, there is a "presumption of innocence" for chemicals used in food and elsewhere, which is wrong, imho. Any new poison can be legally used, and when it is found it is really a poison, it takes 20 years to prove scientifically and then another 10 years legally, which is way too long for a given person - he's likely be dead by the time. It used to be different - there were legally "natural" foods and "artificial" and it had to be marked as such on the label. Corporations fought it and won (that's how we got ingredients list, instead of a simple one word - artificial). Sure, it's impossible to go back as there are too many people on earth to feed naturally - most will have to eat falsified foods. We know that nature always finds a way to kill overpopulated species (one either find a way to control it's own population or disappear) and I think food poisons, not nuclear weapons, is the way to be used on us.

    33. Re:Who would have thought... by hawkinspeter · · Score: 2

      Yes, but only until you put in something combustible - like a person smoking a cigarette.

      --
      You're a temporary arrangement of matter sliding towards oblivion in a cold, uncaring universe
    34. Re:Who would have thought... by pushing-robot · · Score: 5, Interesting

      Lots of things are harmful to one organism and not another: Theobromine is deadly to dogs but fairly harmless to us except in extreme quantities because we have enzymes which can handle it.

      Sorry to nitpick, but that's not really the best example. The LD50 for theobromine poisoning in dogs is 300mg/kg, around 1/3 that of humans. The TDLO (lowest amount required for symptoms) in dogs is 16mg/kg, about 2/3 that of humans. They really aren't that different from us.

      A 3kg chihuahua could eat a standard-size (43g) Hershey's milk chocolate bar and be completely asymptomatic. To reach its LD50, that chihuahua would have to eat around 15 chocolate bars. Of course, most dogs are much heavier than 3kg and have a similarly higher tolerance for theobromine: If a dog weighed as much as a typical human (let's say 75kg), it could eat 25 chocolate bars without any harmful effect.

      It's important to realize that dogs are opportunistic and will overeat if given the opportunity. Most breeds are also much smaller than humans. Stories of theobromine poisoning typically come from dogs who discovered a cache of chocolate candies and consumed an enormous amount compared to their body weight.

      But as long as you maintain some level of portion control, there's really nothing wrong with giving them a normal amount of chocolate in their diet. Just be careful with purer forms of chocolate—dark chocolate can have three times and raw unsweetened chocolate can have ten times as much theobromine as normal chocolate candy.

      --
      How can I believe you when you tell me what I don't want to hear?
    35. Re:Who would have thought... by PeterM+from+Berkeley · · Score: 1

      Other gases or something else to burn? Like wood, for example? Or a person, or that person's clothes/hair/skin?

      However, apparently some source of ignition is still required.
      I found a reference which said people will have bad effects from breathing 100% oxygen at standard pressure, but someone breathing 100% nitrogen for an hour will be dead. Also, someone breathing 100% oxygen at reduced pressure will have no problems at all.

      --PM

    36. Re:Who would have thought... by omnichad · · Score: 1

      Colgate Total was the one with Triclosan. Triclosan has only been in commercial use since 1972, and other Colgate products never had it.

    37. Re:Who would have thought... by Anonymous Coward · · Score: 0

      You can't prove a negative.

      Yeah you can, by exhausting the search space.

      Of course, we're not talking about "proof" here in the pure mathematical "exhaustive" sense, but in the statistical confidence sense, and more specifically, in requiring a basic set of health/environmental impact studies before a new chemical can be used. Which just seems like common sense. If one is worried about that being too onerous, then the burden could be varied depending on how similar they are to existing chemicals which have gone through the full battery of health studies.

      Actually, you can't even do that. The testing required for a product is so serial it isn't funny. There is insufficient parallel capacity to even kinda keep up with marketable developments. I have worked in this area. What you have proposed is the ideal but only in theory. In practice theory doesn't work so well.

    38. Re:Who would have thought... by AwesomeMcgee · · Score: 1

      Moral of the story, if you ever get really and I mean *REALLY* thirsty, eat 2 teaspoons of salt and then go ahead and empty that water cooler jug. It'll freak out anybody near by, and you'll probably wet yourself before you're done.

      Joking aside, the actual largest risk of drinking large amounts of water is the strain it puts on your heart, it increases your blood volume significantly so your heart has to work harder to pump the larger amount while also pumping against greater pressure due to the sheer volume. This is true even when you're not drinking it all at once, but if you just drink too much during each day.

    39. Re:Who would have thought... by Anonymous Coward · · Score: 0

      Zombies posting AC in order to hide the coming surge.

      A beowulf cluster of zombies, it's like a traffic jam in Florida.

    40. Re:Who would have thought... by X0563511 · · Score: 1

      So, what do you do when there is no pre-defined level? It's right there in the name: pre-defined. You have to know it's a problem before you can establish at what level it becomes a problem, which you can then use to establish these limits.

      --
      For large sets, this will be our guide even unto death, for the LORD will work for each type of data it is applied to...
    41. Re:Who would have thought... by Anne_Nonymous · · Score: 1

      >> To reach its LD50, that chihuahua would have to eat around 15 chocolate bars.

      Unlikely. Couldn't stop barking long enough.

    42. Re:Who would have thought... by petermgreen · · Score: 2

      suffocation is not the same thing as lack of oxygen though the eventual means of death will be the same (no oxygen in the blood to keep the body running) what happens along the way wont.

      Our breathing reflexes are driven by CO2,. The presense of lots of CO2 will cause a pressing urge to try and breathe no matter what is in the way or how painful the attempt is. Eventually as the CO2 builds up this urge will override even the urge not to breathe water.

      Whereas with unrestricted breathing of pure nitrrogen/helium/argon etc you will just quitely pass out and die.

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
    43. Re:Who would have thought... by mcgrew · · Score: 1

      Four litres is just over a gallon. I'm pretty sure I drink a lot more than four liters per day. Hell, I get a litre of water in the form of coffee every morning, while drinking water along with it. I probably drink closer to eight litres a day... and that doesn't count beer (also mostly water).

      As to "you will probably die" there's no "probably" about it. Everybody dies, the question is when and from what.

    44. Re:Who would have thought... by deadweight · · Score: 1

      When I was working on a boat in Florida in August, I could drink a gallon of water and not even have to pee all day!

    45. Re:Who would have thought... by Yvan256 · · Score: 1

      Still, drinking too much salt-free water all at once can really kill you because it will upset the balance of electrolytes in your body.

      That's why everybody should drink Brawndo!

    46. Re:Who would have thought... by Anonymous Coward · · Score: 0

      Heya Tom, it's Bob, from the office down the hall...

    47. Re:Who would have thought... by I_am_Jack · · Score: 2

      What you're forgetting is that assuming all other systems in your body are healthy, your kidneys will excrete the excess water, along with urea, in order to balance all pressures (and electrolytes), and fairly quickly at that. It's when the heart is in failure that excess blood volume results in edema and diuretics are required. Drinking four liters of water a day (almost 136 fluid ounces for the Americans playing at home, or a little over 11-12 ounce glasses), over the course of the day, results in nothing more traumatic than additional trips to the loo.

    48. Re:Who would have thought... by tibman · · Score: 1

      For two months i drank over 15 liters of water a day and i when i did finally pee it was brown in color and barely enough to fill a coffee cup. It was over 45C during the day. When i took my sweat encrusted shirt off at night it looked like a quasi-human locust shell.

      --
      http://soylentnews.org/~tibman
    49. Re:Who would have thought... by thePowerOfGrayskull · · Score: 1

      Hmm, I drink just a touch over 4for liters of water every day...

      You should be aware and careful.

    50. Re:Who would have thought... by suprcvic · · Score: 1

      Theo Bromine never harmed a dog in his life! The nerve...

    51. Re:Who would have thought... by Jeremiah+Cornelius · · Score: 1

      The problem being, there's a false dichotomy in the artificial distinction between us and the expansive microbial biosystem, to which we are host. In many ways, we are our biome.

      But all of this is only indirect to the original article - which doesn't examine the effectiveness at killing microbes. The thrust of this story is the decrease of muscle function that is observable with triclosan exposure.

      Hey! The heart is a muscle! What could go wrong?

      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
    52. Re:Who would have thought... by dotancohen · · Score: 1

      You are going to die.

      Not necessarily. I drank four liters of water today and I feel fi##[NO CARRIER]

      --
      It is dangerous to be right when the government is wrong.
    53. Re:Who would have thought... by Eponymous+Hero · · Score: 1

      there is no probably. be born and you will die.

      --
      insensitive clod overlords obligatory xkcd car analogy russian reversals whoosh pedant fanbois ftfy in 3...2...1..PROFIT
    54. Re:Who would have thought... by erice · · Score: 1

      Oxygen Toxicity can be rather unpleasant though an hour at STP wouldn't be enough to kill you. Be careful that you don't scuff your feet. I would also dump the sweater before entering the chamber.

    55. Re:Who would have thought... by davester666 · · Score: 1

      Wow. This is real news that matters for nerds.

      Consuming arsenic affects your internet connection.

      Photos at 11.

      --
      Sleep your way to a whiter smile...date a dentist!
    56. Re:Who would have thought... by sjames · · Score: 1

      Alas, to prove you have exhausted that search space you must then exhaust a search space the size of literally everything there is to know about everything.

      We're pulling for you! :-)

    57. Re:Who would have thought... by Anonymous Coward · · Score: 0

      BRRRRAAAIIINNNNSSSSS

    58. Re:Who would have thought... by Blue+Stone · · Score: 1

      Zombies don't post AC, once they turn, they become 'editors'.

      --
      Corporation, n. An ingenious device for obtaining individual profit without individual responsibility. - Ambrose Bierce
    59. Re:Who would have thought... by DMUTPeregrine · · Score: 1

      Four liters in under 2 hours is probably dangerous (it depends on body size, smaller people will tolerate less) to most people. Eight+ liters over 15+ hours of being awake is almost certainly not dangerous.

      --
      Not a sentence!
    60. Re:Who would have thought... by Chuckstar · · Score: 1

      "Drink four liters of water each day, and you will probably die."

      Not a chance. In fact, if you are working outside in a hot desert, for instance, that would be the minimum suggested amount to be drinking each day.

    61. Re:Who would have thought... by yndrd1984 · · Score: 1

      Hmm, I drink just a touch over 4for liters of water every day...

      ...and my town has a boil order in effect until further notice. Good luck!

    62. Re:Who would have thought... by HungryHobo · · Score: 1

      Fun side effect: if you breath a air mix with both additional O2 and CO2 you won't actually suffocate but you'll feel like you're dying because there's lots of oxygen but the extra CO2 trips your feeling of being suffocated.

    63. Re:Who would have thought... by mcgrew · · Score: 1

      Yes, four literes in two hours is probably dangerous, but not speard out over a whole day.

    64. Re:Who would have thought... by Reziac · · Score: 1

      Also, there may be some genetic factor akin to the MDR1 defect that affects some dogs' ability to process theobromine, as a few dogs do react very badly to it even in small quantities (my sister had a dog like that, and perhaps not by coincidence the dog was also epileptic). MDR1 isn't very different from the assorted genetic defects that cause enzyme deficiencies in humans...

      --
      ~REZ~ #43301. Who'd fake being me anyway?
    65. Re:Who would have thought... by Nizumzen · · Score: 1

      Sounds like a rather sickening torture method to me. I'd be surprised if governments like the North Koreans didn't do something like that.

    66. Re:Who would have thought... by Anonymous Coward · · Score: 0

      Constant thirst could be a symptom of something nasty.. I would check myself.

  2. Triclosan is not the only drug found in waterways by Taco+Cowboy · · Score: 5, Informative

    Need to stress this, Triclosan is not the only drug found in waterways

    A lot of other substances that human being are using ended up in waterways and they are having all types of side effects on ecology around us

    I read an article about 10 years ago that nano-silver particles that we human are using - to kill bacteria, -somehow entered the waterways and end up killing a lot of microbial lifeforms, and the chain reaction (according to the articles that i read, can't find the links to them anymore, sorry) was worrying
     

    --
    Muchas Gracias, Señor Edward Snowden !
  3. And this children ... by Anonymous Coward · · Score: 0

    ... is how you put a competitor out of business.

    1. Re:And this children ... by Black+Parrot · · Score: 3, Funny

      ... is how you put a competitor out of business.

      Slip a little Triclosan into their vodka?

      --
      Sheesh, evil *and* a jerk. -- Jade
  4. What was the dose? by sirwired · · Score: 5, Insightful

    I can certainly dose any given collection of animals with nearly any given chemical in a fashion that will kill them (either quickly or slowly, depending on the particular substance.) I can also dose them with an utterly harmless dose of the most toxic and horrible poisons known to mankind and the animal will live. This applicable to everything from water or oxygen to nasty organic or radiologic stuff.

    In the end, it all comes down to the dose. Was the dose these animals were given at all representative of the dosing received by a person using triclosan-based products? (Or animals absorbing triclosan in the environment?) Would have been nice if that press release had mentioned it. Since it didn't, I can guess that the dose is utterly ridiculous.

    1. Re:What was the dose? by Anonymous Coward · · Score: 3, Informative

      I've only had a quick scan through the article, but near the end it explicitly says:

      Our acute in vivo experiments were aimed at understanding mechanisms and potential risks, and therefore used an intraperitoneal route of exposure. However, the exposures tested here produced (triclosan) blood plasma concentrations consistent with levels found in some humans.

      So if I'm reading that right, the potential health risk depends on exactly who those "some humans" were, and if they were people who generally used triclosan products or if they were people injected with the stuff, which isn't really made clear.

      It also notes that triclosan *is* metabolised in the human body, but exactly how seems to be a bit murky. There's also a note that 95% of the compound seems to be bound by serum protein in blood, but their "results demonstrated that TCS disrupts skeletal (excitation–contraction coupling) even in the presence of excess serum protein".

    2. Re:What was the dose? by CSMoran · · Score: 5, Informative
      If you click to read the abstract (I know, bad etiquette), you'll find that it

      acutely depresses hemodynamics and grip strength in mice at doses 12.5 mg/kg

      --
      Every end has half a stick.
    3. Re:What was the dose? by Derek+Pomery · · Score: 1

      Huh. So an adult male would have to eat like a kilogram of the stuff?

      One toothpaste label reports 0.3% triclosan.

      That's 0.5g of triclosan per tube.
      So to hurt myself I'd have to *eat* almost 2000 tubes of toothpaste?

      --
      -- perl -e'print pack"H*","6e656d6f406d38792e6f7267"' /. ate my old sig. Bastards.
    4. Re:What was the dose? by sheepe2004 · · Score: 2
      From the (free to view) abstract:

      TCS acutely depresses hemodynamics and grip strength in mice at doses 12.5 mg/kg i.p., and a concentration 0.52 M in water compromises swimming performance in larval fathead minnow.

      From the paper itself (pg. 5)

      Typical routes of exposure to TCS (oral, dermal) are sufcient in bringing the compound into systemic circulation (38, 39). Importantly, one study reported plasma Cmax of nearly 1 M within 1–3 h after administering a 4-mg oral dose in human subjects (38).

      So the doses used could quite possibly be meaningful, I'm no biologist though...

      --
      http://compsoc.man.ac.uk/~shep/
    5. Re:What was the dose? by TheLink · · Score: 2

      No. 80 kg * 12.5mg/kg = 1 gram. Not 1 kg.

      So you would have to eat about 2 x 160g tubes of toothpaste.

      There might be other stuff in toothpaste that would kill you first.

      --
    6. Re:What was the dose? by Derek+Pomery · · Score: 2

      Ugh. That's what I get for trying to do math on just waking up.

      mg, not g.
      Sooo, 2 tubes of toothpaste.
      That's still a hell of a lot of toothpaste :)

      Given I normally don't swallow any.
      Hm. But let's say there's a kid out there who gets into the toothpaste.

      If a small kid ate an entire tube, it'd be time to call poison control and induce vomiting from the sounds of it.

      --
      -- perl -e'print pack"H*","6e656d6f406d38792e6f7267"' /. ate my old sig. Bastards.
    7. Re:What was the dose? by greyblack · · Score: 1
      From TFA:

      The investigators performed several experiments to evaluate the effects of triclosan on muscle activity, using doses similar to those that people and animals may be exposed to during everyday life.

      --
      Everybody uses broad generalizations.
    8. Re:What was the dose? by FirephoxRising · · Score: 5, Informative

      You should URGENTLY call poisons information if someone eats significant amounts of toothpaste. The Fluoride can and has killed people.

    9. Re:What was the dose? by sheepe2004 · · Score: 1

      No. Assuming a person is 70kg and 0.5g per tube:
      (70*12.5e-3)/0.5 = 1.75

      But for a child it's more like half a tube of toothpaste...

      --
      http://compsoc.man.ac.uk/~shep/
    10. Re:What was the dose? by MLease · · Score: 1

      Yeah. You'd probably barf first, though.

      --
      I'm sorry; I don't know what I was thinking!
    11. Re:What was the dose? by Darth_brooks · · Score: 5, Insightful

      "If a small kid ate an entire tube, it'd be time to call poison control and induce vomiting from the sounds of it."

      Which you'd already have to do since most toothpaste contains Fluoride which, in addition to ruining the purity of our essence, isn't the healthiest stuff on earth to begin with.

      Worrying about triclosan in toothpaste is a bit like worrying about the mercury content of your cyanide.

      --
      There are some people that if they don't know, you can't tell 'em.
    12. Re:What was the dose? by MLease · · Score: 1

      Oh, okay, fine, less than that. That's what I get for trying to be funny before reading on.

      --
      I'm sorry; I don't know what I was thinking!
    13. Re:What was the dose? by Anonymous Coward · · Score: 0

      indeed, many humans die every year due to overdose of the otherwise harmless chemical dihydrogen monoxide.

    14. Re:What was the dose? by Anonymous Coward · · Score: 0

      Yeah, but on the upside their autopsy photos had a lovely white smile

    15. Re:What was the dose? by bwintx · · Score: 2

      If it weren't already at "5, Insightful," would deserve some uprating purely for the Dr. Strangelove reference.

      --
      Discussion System prefs link: http://slashdot.org/users.pl?op=editcomm
    16. Re:What was the dose? by pesho · · Score: 2

      What was the dose?

      Excellent question, which should have had its answer in the summary. The dose is 12.5mg/kg injected interperitoneally. This dose will cause 20% reduction in muscle strength for a short period after the injection. In humans TCS is metabolized and inactivated rapidly (according to the article), although people with genetic effects may retain the drug for longer periods. It is unclear if the mice on which the experiments were done metabolize the drug with the same efficiency. If the drugs has to be absorbed through the skin or ingested you will need to be exposed to a significantly higher dose that the one used in the study.

      In summary if you are not being injected with high concentration of the drug, you have nothing to worry about. Please put down the pitchforks and the torches. Nothing to see here.

    17. Re:What was the dose? by pesho · · Score: 1

      You need to inject yourself with the said toothpaste. If you insist on eating it you will need to eat a lot more tootpaste to get the same blood concentration as the one you get from injection.

    18. Re:What was the dose? by Anonymous Coward · · Score: 0

      Over what period of time is this a concern?

      If the stuff accumulates like mercury, accidental ingestion could be a problem over a lifetime of brushing twice daily (especially for those that get a head start by eating the stuff as a kid.)

    19. Re:What was the dose? by Derek+Pomery · · Score: 2

      Welp, I couldn't find too much on wikipedia on accumulation of triclosan itself, just the intermediates,
      but random-ass site w/ no citation for the fact says that.
      "Triclosan is lipophilic, which means it can bioaccumulate in your fat for long, periods of time"
      http://articles.mercola.com/sites/articles/archive/2011/07/27/how-washing-your-hands-and-germophobia-can-damage-your-brain.aspx

      It also linked to articles mentioning presence in milk/blood/urine, but those articles didn't mention bioaccumulation.

      --
      -- perl -e'print pack"H*","6e656d6f406d38792e6f7267"' /. ate my old sig. Bastards.
    20. Re:What was the dose? by Anonymous Coward · · Score: 0

      Agree. That little aside caused me to snort in a manner that made someone check in to make sure I was OK.

    21. Re:What was the dose? by Derek+Pomery · · Score: 1

      *sigh* and by "intermediates" I meant "intermediates of reaction w/ chlorine" according to the wikipedia section on byproducts.

      Oh, and wikipedia also said.
      "a 4-year study of possible effects of triclosan (0.3%) in toothpaste on thyroid hormone function found no effect of triclosan on thyroid hormone concentration in sera of adult human subjects"

      You'd think that would suggest no significant bioaccumulation or eventually the endocrine disruption effects would show up.

      --
      -- perl -e'print pack"H*","6e656d6f406d38792e6f7267"' /. ate my old sig. Bastards.
    22. Re:What was the dose? by grumpyman · · Score: 1

      Like homeopathy?

    23. Re:What was the dose? by Peristaltic · · Score: 2

      ...and if they were people who generally used triclosan products or if they were people injected with the stuff, which isn't really made clear.

      That is pretty much the gist of it. Did the subjects absorb the stuff cutaneously, or were they injected with it?

      Also, the headline is a bit hysterical. There are other widely-used substances that impair muscle function.

      Take Azithromycin (Zithromax, Z-Pack) for example - granted, it's not used quite as widely as triclosan, however quite a few people have ingested this antibiotic at one time or another. It tends to strongly inhibit the pre-synaptic release of acetylcholine at the nicotinic acetylcholine receptors. This can be a problem in some cases (it will send Myasthenia Gravis patients into crisis), however I've been there when a healthy 25 year-old female who did not have MG entered our office with pronounced ptosis of both eyes, and was eventually diagnosed as having had an adverse event related to Azithromycin. She had been complaining of a number of other weird symptoms (that turned out to be related), but was not taken seriously by our neurology dept. until she presented with ptosis. As a side note, it's sort of disconcerting that the rate of adverse events related to Azithromycin use has been increasing over the last several years, even taking into account increased patient use of the stuff and better recognition of signs & symptoms.

      Yes, there are citations, but I don't feel like posting a half-dozen links to journals here. I was tasked to dig through the literature after our research center noticed an increasing number of Azithromycin-related adverse events at several clinics. I was even lucky enough to experience a serious event after using a Z-Pack, after having used the stuff without problem in years past.

    24. Re:What was the dose? by mcgrew · · Score: 1

      I'm no biologist though...

      Where's Samantha Wright when you need her? You know, the one whose sig reads "I'm a biologist, ask me biology questions in my journal" that she seldom updates? In fact, where are any other biologists in this thread???

  5. Can't stand your neighbor's dog yepping ? by Taco+Cowboy · · Score: 0, Offtopic

    Theobromine is deadly to dogs but fairly harmless to us

     
    Your neighbor's chihuahua yelping all day (and all night ) long?
     
    Losing sleep because of the inconsiderate neighbor letting that little bitch yelping non-stop?
     
    Well ... do the dog and yourself a favor - feed the dog lots and lots of delicious chocolate
     

    --
    Muchas Gracias, Señor Edward Snowden !
    1. Re:Can't stand your neighbor's dog yepping ? by Anonymous Coward · · Score: 5, Informative

      You would be better off giving it a grape or an onion. Chocolate is fairly weak in killing a dog than that of cocoa itself. An onion actually causes the blood cells in a dog to "pop" which means a deader dog in a shorter time.

    2. Re:Can't stand your neighbor's dog yepping ? by polar+red · · Score: 1

      chihuahua

      so it's also effective against rats ?

      --
      Yes, I'm left. You have a problem with that?
    3. Re:Can't stand your neighbor's dog yepping ? by queazocotal · · Score: 4, Funny

      So chocolate makes zombie dogs, but onions kill them properly?

    4. Re:Can't stand your neighbor's dog yepping ? by Jeremiah+Cornelius · · Score: 3, Informative

      Effective against us. It likely kills people indirectly.

      There is a huge, symbiotic, non-human, microbial biomass that make our lives possible.

      These microbes outnumber us, in our OWN bodies. They are how we digest our food, repel destructive invaders, regulate enzyme levels - and are likely involved in our psychological disposition.

      The fact is, we know almost nothing about this - just the tip of an iceberg. Science and Medicine are just getting past the primitive, binary thinking that sterile systems are healthiest. Killing ALL the bacteria in your mouth? Health complications emerge when you lose the phages that destroy actually harmful bacteria.

      Poisoning this has a potential for huge, uncalculated consequences. And merely brushing your teeth with this stuff trickles a little dose of triclosan into your tract, two or three times a day.

      I think that it would be interesting to study the correlation between triclosan exposure and the obesity epidemic.

      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
    5. Re:Can't stand your neighbor's dog yepping ? by heathen_01 · · Score: 2, Insightful

      There is a huge, symbiotic, non-human, microbial biomass that make our lives possible.

      These microbes outnumber us, in our OWN bodies.

      It is not your own body, you are just the biological protective suit for the bacterial life form inside you.

    6. Re:Can't stand your neighbor's dog yepping ? by Anonymous Coward · · Score: 0

      Oh my god! Then it's true!

      Yippie-ki-yay! You'll never guess where I've been!

    7. Re:Can't stand your neighbor's dog yepping ? by Jeremiah+Cornelius · · Score: 1
      --
      "Flyin' in just a sweet place,
      Never been known to fail..."
  6. been noticing that I drop things more lately by dltaylor · · Score: 1

    Thought it was just age (and, yes, it still could be; I'm not diabetic, so it isn't neuropathy), but my wife insists on using stuff with that in it, and it's damned hard to avoid in normal grocery/department stores.

    I'm gonna try harder, now, though.

    Suggestions?

    1. Re:been noticing that I drop things more lately by Anonymous Coward · · Score: 0

      Suggestions?

      The causal link between your dropping things and triclosan exists only in your mind. You have no proof whatsoever that this is the cause.
      Also, diabetes is not the only cause of neuropathy.

    2. Re:been noticing that I drop things more lately by grouchomarxist · · Score: 1

      If this is a serious problem, consult a doctor.

      However, I've noticed in the past that I tend to drop things when I'm unenthusiastic, distracted, depressed or whatever. You need to put energy into focusing on what you're currently doing.

    3. Re:been noticing that I drop things more lately by mutube · · Score: 3, Insightful

      Suggestions?

      Stop making life decisions based on limited evidence.

    4. Re:been noticing that I drop things more lately by History's+Coming+To · · Score: 2

      Indeed. There is, however, strong evidence that gum disease is linked to heart disease (http://www.sciencedaily.com/releases/2008/12/081215184308.htm). None of this is as risky as stress however, so stop worrying and get on with your life, if you try to do every little thing you can to "improve your chances" then you'll probably have the opposite effect.

      --
      Please consider this account deleted, I just can't be bothered with the spam anymore.
    5. Re:been noticing that I drop things more lately by gblackwo · · Score: 1

      It is a sad day, but our low UID forebearers are going senile. I guess it was only a matter of time.

    6. Re:been noticing that I drop things more lately by Anonymous Coward · · Score: 0

      Dropping things can also be a sign of carpal tunnel syndrome, though you would typically have symptoms of numbness and sometimes pain. And there are other possibilities too.

    7. Re:been noticing that I drop things more lately by Mr+Foobar · · Score: 1

      "but our low UID forebearers are going senile

      Hey, you young bucks, get the hell off my lawn!

      --
      -> I dislike sigs...
    8. Re:been noticing that I drop things more lately by Hatta · · Score: 1

      What is one supposed to base life decisions on then? In this world we get to choose between making decisions based on limited evidence, and making decisions based on no evidence. I'll suggest that of the choices, limited evidence leads to better outcomes than no evidence, but I have limited evidence to back that up.

      --
      Give me Classic Slashdot or give me death!
    9. Re:been noticing that I drop things more lately by ColdWetDog · · Score: 1

      It is a sad day, but our low UID forebearers are going senile. I guess it was only a matter of time.

      Yeah, but we're still going to be able to whip your sorry little triclosan impregnated asses. You're gonna be pretty sad when grandpa's Viagra enhanced body can 'outperform' your wimpy little chemically castrated muscles.

      Start running now, kid.

      --
      Faster! Faster! Faster would be better!
    10. Re:been noticing that I drop things more lately by fahrbot-bot · · Score: 1

      However, I've noticed in the past that I tend to drop things when I'm unenthusiastic, distracted, depressed or whatever. You need to put energy into focusing on what you're currently doing.

      [ Insert masturbation joke here. ]

      --
      It must have been something you assimilated. . . .
    11. Re:been noticing that I drop things more lately by zzyzyx · · Score: 1

      Suggestions?

      Parkinson's, and also don't rely on comments from random strangers on the Internet for medical advice.

    12. Re:been noticing that I drop things more lately by Anonymous Coward · · Score: 0

      Suggestions?

      Stop making life decisions based on limited evidence.

      You have unlimited evidence?

  7. We're flushing away the ecology by SternisheFan · · Score: 1

    We are just begiining to realize how all these medications and chemicals that are poured down the sink and flushed into our planet's oceans and waterways affect our ecology. We are starting to see the effects on the wildlife. Frogs are disappearing at alarming rates because of these chemicals, and their habitats being destroyed.

    1. Re:We're flushing away the ecology by jbeaupre · · Score: 1

      I wasn't aware that Batrachochytrium dendrobatidis was a chemical.

      --
      The world is made by those who show up for the job.
  8. It's just random use of antibiotics. by Sique · · Score: 1

    I never understood the whole "antibacterial" hype. If you broadly and indiscriminately use an antibiotic (and if it is antibacterial, it is an antibiotic per definitionem), all you get are strains of immune bacteria. I am pretty sure that in the average american household, there are more bacteria immune to Triclosan per cubic feet than New York has inhabitants.

    --
    .sig: Sique *sigh*
    1. Re:It's just random use of antibiotics. by SternisheFan · · Score: 3, Insightful

      Your immune system needs exposure to bacteria in order to stay strong. If you are always using anti-bacterial lotions and wipes, your white bloods cells can 'forget' how to fight off infection. Some of the healthiest guys are sewer workers, they rarely take a sick day, because their immune systemsare so strong, since they are constantly fighting off bacteria.

    2. Re:It's just random use of antibiotics. by 12WTF$ · · Score: 5, Funny

      Some of the healthiest guys are sewer workers, they rarely take a sick day, because their immune systemsare so strong, since they are constantly fighting off bacteria.

      But their breath is knock down nasty and their farts are room clearing because sewage workers' internal bio flora has a larger population of anaerobic and methanogenic bacteria. Apart from that they are really nice guys.

      --
      Cryonics - Keep cool and carry on.
    3. Re:It's just random use of antibiotics. by Black+Parrot · · Score: 1

      I never understood the whole "antibacterial" hype.

      Chant mar-ke-ting over and over real slowly, and soon enlightenment will descend upon you.

      I was on an areoplane Monday, and the lady that plopped down beside me immediately whipped out some kind of sanitary wipe and started cleaning the food tray and the back of the seat in front of her.

      --
      Sheesh, evil *and* a jerk. -- Jade
    4. Re:It's just random use of antibiotics. by PeterM+from+Berkeley · · Score: 3, Insightful

      Indeed, I'd rather be using lotions/whatever with beneficial bacteria cultures in them than anti-bacterial stuff.

      Probiotics are a main selling point of yogurt, we may as well promote the ones that help us rather than try to poison everything, period.

      I think antibiotic treatments should always come paired with probiotic therapy to rebuild beneficial flora that you should not have killed.... And deaths from clostridium dificile bear this out.

      --PM

    5. Re:It's just random use of antibiotics. by Anonymous Coward · · Score: 0

      Your immune system needs exposure to bacteria in order to stay strong. If you are always using anti-bacterial lotions and wipes, your white bloods cells can 'forget' how to fight off infection.

      [citation needed]

      -or-

      That's the stupidest fucking thing I've read in the past year. If that was truly the case, then doctors, who are continuously using an alcohol-based anti-bacterial on their hands, would be significantly sicker than the rest of us.

    6. Re:It's just random use of antibiotics. by fahrbot-bot · · Score: 1

      Your immune system needs exposure to bacteria in order to stay strong. If you are always using anti-bacterial lotions and wipes, your white bloods cells can 'forget' how to fight off infection.

      Exactly. If a dirty kitchen sponge was that seriously bad for us, we would have died off as a species long ago.

      --
      It must have been something you assimilated. . . .
    7. Re:It's just random use of antibiotics. by avandesande · · Score: 1

      Maybe they just love their work :-)

      --
      love is just extroverted narcissism
    8. Re:It's just random use of antibiotics. by formfeed · · Score: 1

      I am pretty sure that in the average american household, there are more bacteria immune to Triclosan per cubic feet than New York has inhabitants.

      See, here's the problem: Germ infested American households.

      I don't want to go into detail, but here some highlights of my plan to reduce overuse of antimicrobials:

      • - Stay-home moms with young children should not be allowed to shop for cleaning products
      • - Products containing Triclosan but not stating it should be assumed fit for human consumption - by the CEO
      • - People using flushable teflon as a toilet bowl cleaner should be hit over the head with a frying pan.

      Thank you, thank you, thank you.

    9. Re:It's just random use of antibiotics. by Anonymous Coward · · Score: 0

      I think it's quite possible the large many of courses of relatively high dose antibiotics are at least a part cause of my developing Crohn's Disease - which seemed to kick in after a foreign holiday - perhaps by a gut infection that my depleted bacteria overreacted to.

  9. Due to the pervasive use... by Yaddoshi · · Score: 1

    ...would this be a possible link to the childhood obesity epidemic?

    1. Re:Due to the pervasive use... by Anonymous Coward · · Score: 0

      ...would this be a possible link to the childhood obesity epidemic?

      IMHO - sorta...

      Both stem from the current trend of overprotective parenting.

      Kids are fat because they're not allowed to play outside by their overprotective parents.

      The overprotective parents also obsessivley clean every household surface with this anti-bacterial crap...

  10. Look at the dosing! by sowalsky · · Score: 5, Insightful

    The experiments in mice were performed at 12.5mg/kg, which would be (for the average 65-kg human) a shocking 812.5mg of Triclosan. If your standard amount of handsoap and toothpaste is 2ml that's like brushing your teeth with a 1/3 solution of triclosan and swallowing it.

    Like most of the research in PNAS this was not subjected to the high level of peer review expected in most scholarly journals and this paper got through without regard to its relevance and real-world significance.

    At a high enough dose, caffeine causes cancer in lab animals. But not at the doses even Slashdotters consume.

    1. Re:Look at the dosing! by Anonymous Coward · · Score: 0

      But not at the doses even Slashdotters consume.

      You can only speak for yourself.

    2. Re:Look at the dosing! by Anonymous Coward · · Score: 0

      Some toothpaste, some of that, some more of this, it all adds up, even if its only small amounts. And that Sometimes several times a day, everyday, over and over again.

    3. Re:Look at the dosing! by WillerZ · · Score: 1

      You are probably right; however it does depend on how rapidly it is broken down and excreted by the body. If it is never got rid of, then this test is using a massive under-dose (from my point of view), since I have certainly swallowed 2 tubes-worth of Colgate Total over the course of my life.

      If it is eliminated in 12 hours it is a huge over-dose as you say. Somewhere in between these points is an elimination-rate which makes this number entirely appropriate.

      --
      I guess today is a passable day to die.
    4. Re:Look at the dosing! by jafiwam · · Score: 1

      There is some credence to the "never leaves" theory.

      Triclosan degrades into a couple of families of dioxin compounds.

      Wikipedia Article

      There's nothing stopping this degradation process from happening in the body, or before it is consumed.

      The molecule starts out pretty close to dioxin in shape anyway. Symmetrical with two carbon rings...

    5. Re:Look at the dosing! by jovius · · Score: 1

      One thing to consider is the cumulative dose of chemicals from the daily use of various products.

      I made a strategic decision a while back to use only all-natural/mostly chemical free products for the daily hygiene (I'm mostly vegan anyway), and I've not been disappointed. The deodorant crystal for example is excellent. It only contains the effective natural ingredient and works well (if you're not a high odor person). It's amazing how it just completely kills the body odor. I've also stopped using shampoo, and my hair is now less greasy than before. The reward for stepping out of my habits (marketed to me) has not a been catastrophe but something better.

      My next step is to change my toothpaste or at least give a chance to an alternative product. It's not so easy, because I'm so used to certain product since childhood, but I think it's worth trying.

    6. Re:Look at the dosing! by Charliemopps · · Score: 1

      Baking soda... not that I'm into that hippie crap... but I'm cheap so...

    7. Re:Look at the dosing! by Anonymous Coward · · Score: 0

      Also note that this is a "contributed article" (note the "Contributed by Bruce D. Hammock, July 13, 2012 (sent for review June 18, 2012)"):

      http://www.pnas.org/site/misc/iforc.shtml/ (search for Contributed Submission)

      As I understand, the contributing author gets to choose personally the reviewers ... talk about friends marking their friends' exam.

      Some of the dandiest stuff gets published via this route.

    8. Re:Look at the dosing! by argStyopa · · Score: 1

      At a high enough dosage, dihydrogen monoxide's a killer too.

      --
      -Styopa
    9. Re:Look at the dosing! by Penurious+Penguin · · Score: 1

      Well I'm here to tell you folks; dno't use tihs siht on sadnwihces. It raelly fcuks up yuor typnig.

      --
      Forward! -- Emperor Norton, 2012
    10. Re:Look at the dosing! by the+eric+conspiracy · · Score: 1

      The study was also mostly done in vitro on isolated cells. I can't imagine a less realistic scenario.

      This crap is laughable.

      1. academic team does a couple of hundred in vitro experiments

      2. publishes the ones that are significant to 95%.

      3. News headlines in lame stream media

      4. PROFIT!!! (Grant renewed).

      No wonder even landmark cancer studies can't be reproduced.

    11. Re:Look at the dosing! by Mprx · · Score: 1

      Try using no toothpaste at all:
      http://www.ijdr.in/article.asp?issn=0970-9290;year=2010;volume=21;issue=2;spage=213;epage=217;aulast=Jayakumar
      I stopped using toothpaste about a year ago, to no perceptible effect. Brushing+flossing alone is sufficient to keep your teeth healthy.

    12. Re:Look at the dosing! by Anonymous Coward · · Score: 0

      I know this might be a bit pedantic, but you can't be mostly vegan. You're either vegan or you're not. You can say you eat a mostly vegan diet, but saying you're mostly vegan is like saying you're mostly a virgin.

    13. Re:Look at the dosing! by blivit42 · · Score: 1

      Like most of the research in PNAS this was not subjected to the high level of peer review expected in most scholarly journals and this paper got through without regard to its relevance and real-world significance.

      I feel the need to defend PNAS here, since I actually consider it to be one of the better journals -- *IF* the manuscript has been accepted via the non- Academy of Sciences peer review process. PNAS has two (maybe three?) submission tracks: A) You are a member of the Academy of Sciences, and this results in your manuscript getting accepted more easily than usual. B) You get a friend who is an Academy member to submit your paper for you, which also lowers the bar. I'm not sure if this is really part of track A) or not, so it may or may not count as a separate track. Track C), however, is where someone who is NOT associated with the Academy submits a manuscript. Papers that come in from "external" submissions and make it past the Editor, and then all the peer review, are actually generally quite good.

      So, PNAS is a mixed bag. Manuscripts from Academy members can be a bit on the sketchier side due to how the submission/review process works for them, but manuscripts from non-Academy members are often, IMHO, a good bit better than average. As with all scientific manuscripts, you must read them over carefully and determine if they have sufficiently proved their point or not.

      Unfortunately, you may have a point about this particular article, since it was "Contributed by Bruce D. Hammock", who a quick Google search shows to be an Academy member.... I have not actually read the TFA, though, so I can't comment on whether it is any good or not.

    14. Re:Look at the dosing! by DMUTPeregrine · · Score: 1

      Studies to find effects of large doses via direct methods (injection and in vitro on isolated cells) are much, much cheaper than studies to find effects of small doses via indirect methods (absorption through the skin). It's much easier to get the funding for the second kind of study if you first show that there is an effect via the first kind of study.

      This is a study of the first form. The researchers will almost certainly now try to get grants for a study of the second form, to determine exactly how harmful triclosan is in various realistic usages. The large publicity this study is getting is premature, but the study is certainly relevant, in that it shows the need for a follow-up study on the real-world significance of triclosan use.

      --
      Not a sentence!
    15. Re:Look at the dosing! by airdweller · · Score: 1

      "I've also stopped using shampoo, and my hair is now less greasy than before."
      I find that really hard to believe. Is it your personal observation or you at least asked all the people around you?

  11. Hmm... I missed that, but it appears to be high by sirwired · · Score: 5, Interesting

    12.5 mg/kg! Holy cow! This is ridiculously in excess of any conceivable dose of Triclosan you could get unless you are an utterly unprotected employee of a Triclosan-using factory.

    1. Re:Hmm... I missed that, but it appears to be high by Anonymous Coward · · Score: 0

      Indeed. But what are the long term effects? We already know that Aspartame has issues...even at "human safe" doses of the stuff.

      You're focusing on the LD50 levels, but there's a lot of stuff that's problematic at non-lethal doses. BPA's another example of this. While I'm not going to say yank it off the shelves- we should be asking ourselves if it's a wise thing to have in our environment like this...

    2. Re:Hmm... I missed that, but it appears to be high by CSMoran · · Score: 1

      We already know that Aspartame has issues...even at "human safe" doses of the stuff.

      We don't. The conspiracy theorists do.

      --
      Every end has half a stick.
    3. Re:Hmm... I missed that, but it appears to be high by dbet · · Score: 1

      Aspartame does not have "issues", I realize it's one of the more popular conspiracy chemicals that morons discuss to try and sound smart and/or informed.

    4. Re:Hmm... I missed that, but it appears to be high by Anonymous Coward · · Score: 0

      That's in mice, where the doses are normally higher (by around 13x) when compared to humans. Having said that, it'd still be useful to know what the normal exposure range is in humans (perhaps the paper covers that, I'm too lazy at the moment).

    5. Re:Hmm... I missed that, but it appears to be high by Urkki · · Score: 1

      Aspartame does not have "issues", I realize it's one of the more popular conspiracy chemicals that morons discuss to try and sound smart and/or informed.

      Aspartame, or at least most products sweetened with it, sure have issues. Their taste is somehow off, they're not very enjoyable to enjoy... YMMV of course, and being obese as an alternative has issue too, no doubt about that.

    6. Re:Hmm... I missed that, but it appears to be high by daleallan · · Score: 1

      That's what the industry said in replying to the UC Davis study - the doses were way higher than we get. I posted a link to the response earlier.

  12. How do I access the paper? by sirwired · · Score: 1

    I looked, and maybe I'm blind, but I don't see any way to access the full paper (without a subscription or special request) and the linked article has no such sentence in it.

    1. Re:How do I access the paper? by Anonymous Coward · · Score: 1

      Many /.'ers have affiliations with universities that have subscriptions, allowing them to read full science articles when they go to the same journal site you do.

       

  13. does it really affect people adversely? by MassiveForces · · Score: 5, Interesting

    For one thing, its reversible. Wears off after 60 mins in mice at the dose they were using. Hey that might even mean less free radicals which cause aging. Second, humans aren't going to notice the effects at the doses they receive, otherwise we would have seen it in factory workers that produce triclosan already. So nobody should be alarmed at least, unless maybe it impairs salmon swimming upstream to reproduce.

    1. Re:does it really affect people adversely? by Dan+East · · Score: 1

      Second, humans aren't going to notice the effects at the doses they receive, otherwise we would have seen it in factory workers that produce triclosan already.

      And to think the factories simply assumed they had the laziest, pathetic, most lethargic bunch of employees around.

      --
      Better known as 318230.
  14. Women tend to be obsessive about sanitation by Viol8 · · Score: 1

    No idea why. Its mostly women that the utter nonsense known as toilet cleaner is marketed to. Why do I care if there are no bacteria in my toilet? I don't drink out of it , I piss and crap in it. And as soon anyone does that its full of bacteria again so why do I want to spend $$$ on some blue coloured gunk (thats probably a pollutant) to kill the bacteria??

    1. Re:Women tend to be obsessive about sanitation by Dr_Barnowl · · Score: 1

      Indeed, it's probably cleaner than your keyboard - your keyboard is not made of impervious porcelain and regularly flushed with copious amounts of water. It's made of attractively textured plastic (lots of little niches for bacteria to thrive) and regularly touched by human hands (lots of food for bacteria to eat, skin, grease, etc).

      The flush toilet is a horrendously inefficient use of water anyway. 40% of our domestic water use is flushing the toilet, which is a staggering waste of potable water in an era where there is a shortage of water.

    2. Re:Women tend to be obsessive about sanitation by omnichad · · Score: 1

      Because bacterial colonies are not shiny and white. I'd rather have shiny and clean than a grey or brown biofilm covering my toilet even if ONLY for cosmetic reasons.

    3. Re:Women tend to be obsessive about sanitation by omnichad · · Score: 1

      It does make you wonder why we use flouridated, chlorinated, fully purified water for flushing a toilet. But I doubt my town is going to start offering grey water for this purpose any time soon. Lots of water seems fine to me, just to avoid having concentrated human waste at any point along the way.

    4. Re:Women tend to be obsessive about sanitation by MightyYar · · Score: 1

      I have (I kid you not) a brown toilet.

      --
      W..w..W - Willy Waterloo washes Warren Wiggins who is washing Waldo Woo.
    5. Re:Women tend to be obsessive about sanitation by Viol8 · · Score: 1

      Then use a fecking toilet brush.

    6. Re:Women tend to be obsessive about sanitation by airdweller · · Score: 1

      I bet it's biological: the same reason women - on average - are more easily scared, startled, grossed out, etc. than men. Their health/safety is just more important for our species (or at least used to be). Which often leads to excess.

  15. stop using it please by Internetuser1248 · · Score: 1

    It has been known for decades that household use of antibacterial soaps creates immune bacteria that are causing major problems for hospitals. There is no reason for it, but it takes a new study that shows you are not just fucking shit up for everyone, you are fucking your own shit up too. Now people will stop, selfishness rules.

  16. Toothpaste versus garbage bags by snsh · · Score: 1

    I doubt many people will really miss the use of Triclosan in things like garbage bags and carpet, but toothpaste is a different story. Dental hygiene seems to me to be the one application where you're better off using wide-spectrum antibiotics all the time. Everyone is born with one set of teeth (yes you could argue two), and you'd like all those teeth to last your lifetime.

    1. Re:Toothpaste versus garbage bags by ballpoint · · Score: 1

      Read the post above yours. Broad spectrum antibiotics indiscriminately kill innocent bacteria that are competing with the baddies for nutrients in your oral cavity. Keep things clean without creating a wasteland.

      --
      Flourescent (adj): smelling like ground wheat.
    2. Re:Toothpaste versus garbage bags by Anonymous Coward · · Score: 0

      Your teeth would last you a lifetime if you just didn't eat garbage.

      My Great Grandmother died at 84 years of age with all of her teeth, white as could be. 100% Cherokee, she didn't eat the crap we eat from the grocery store today - and she brushed her teeth daily with whittled roots from Sassafras.

      Americans in particular eat some really strange stuff. Go to the store and look for things without gluten and high fructose corn syrup. There are some, but in general - good luck.

      Ask any veterinarian how easy it is to tell a dog that eats healthy from one that gets table scraps. They'll go to two things that show it right away, 1) The dog is fat, 2) rotten teeth.

      I had a 9 year old doberman/rottweiler mix that had all her teeth when she died - AND that stupid dog just loved the hell out of chewing on some rocks and even metal stuff, too. There was not a gutter drain on my house that she hadn't torn to shreds as high as she could stand. If you left a spoon out, she'd chew it to bits. She never got table scraps or anything other than grain-free dog foods.

      In contrast, my parents have a 5 year old yellow lab that is so fat he can't hardly walk - and sure enough, his teeth are rotting out of his face. They feed him not just table scraps - but they will literally buy him a burger when they're out and bring it home for him. Stupid.

    3. Re:Toothpaste versus garbage bags by omnichad · · Score: 1

      Why would someone who is not allergic go out of their way to avoid gluten?

    4. Re:Toothpaste versus garbage bags by pclminion · · Score: 1

      It's popular to have a food allergy. Growing up, I never even heard of gluten intolerance much less knew anybody who suffered from it. Now it seems like half the people in any given room are gluten "intolerant." usually they claim they were diagnosed by a naturopath. Gluten intolerance is real, but what the fuck happened in the last ten years so that suddenly a big fraction of the population suffers from it? Something is up with this.

    5. Re:Toothpaste versus garbage bags by the+eric+conspiracy · · Score: 1

      The Internet happened.

    6. Re:Toothpaste versus garbage bags by Anonymous Coward · · Score: 0

      Spoken like someone who's never had thrush.

    7. Re:Toothpaste versus garbage bags by spiralx · · Score: 1

      Increased awareness amongst people and doctors leading to increased diagnosis? I'm not claiming that accounts for all of it (or even most), but it will account for a genuine increase in recorded cases even if the incidence of the condition in the population hasn't changed.

  17. Rubbish by Viol8 · · Score: 1

    "Dental hygiene seems to me to be the one application where you're better off using wide-spectrum antibiotics all the time"

    Nonsense. Tooth decay is only caused by a small subset of bacteria and most of them are removed by physical brushing. The only use for the toothpaste is mainly for the flouride. There are thousands of different types of bacteria in the human mouth and no one knows if any of them are useful to our health as the ones in our guts and on our skin are. Just killing the lot of them every day is probably foolish.

    1. Re:Rubbish by Anonymous Coward · · Score: 0

      Not to mention that Listerine seems to manage... WITHOUT TRICLOSAN ...and do it for years before the stuff having been discovered.

    2. Re:Rubbish by metacell · · Score: 1

      I agree. The two most important things for keeping your teeth healty, is regular, physical cleaning (brushing and dental sticks) and fluoride.

      A lot of bacteria live in symbiosis with the human body, for example, in the digestive system.

    3. Re:Rubbish by snsh · · Score: 1

      Then you might be pleasantly surprised by Colgate Total.

      Try this: brush your teeth with ordinary toothpaste (fluoride + abrasive + surfactant), eat a jelly donut, wait two hours, and then check the plaque on your teeth. Then repeat the process with Colgate Total toothpaste (+= triclosan + glue). Huge difference.

      Granted there are unknown unknowns about the potential benefits of the flora in your mouth, but the known knowns about the damage done by the flora to your teeth is pretty well known. Until they figure out how regrow teeth or invent plaque-scrubbing nanites, keeping your mouth as sterile as you can is probably a good bet.

    4. Re:Rubbish by Viol8 · · Score: 1

      Do you for Colgates PR dept or something? I've managed for 43 years without using it and I still have all my teeth. Besides that, people who have a low sugar diet have very little decay because there's little for the bacteria to eat. Perhaps advocating a sane diet instead of the over sweetened gunk we eat in the west would be a better approach.

    5. Re:Rubbish by Anonymous Coward · · Score: 0

      I'm not so sure, killing off good/neutral bacteria probably make it easier for bad bacteria to grow.

    6. Re:Rubbish by jafiwam · · Score: 1

      "Dental hygiene seems to me to be the one application where you're better off using wide-spectrum antibiotics all the time"

      Nonsense. Tooth decay is only caused by a small subset of bacteria and most of them are removed by physical brushing. The only use for the toothpaste is mainly for the flouride. There are thousands of different types of bacteria in the human mouth and no one knows if any of them are useful to our health as the ones in our guts and on our skin are. Just killing the lot of them every day is probably foolish.

      There is a very very strong statistical link between heart valve infections (which will kill you DRT if undetected) and dental hygine. Bacterial loads on gums or tooth infections can directly lead to not only infections in the head, but infections in the blood stream and cardiovascular system.

      A nigh-germ free environment in the dental area is much better for overall health than believing in "friendly" bacteria there. At least, with modern research and thinking. There's probably lots of bacteria that haven't been looked at in there but assuming they are symbiotic is premature.

    7. Re:Rubbish by pclminion · · Score: 1

      Some people's mouths are simply immune to tooth decay. According to my dentist, who could be wrong, about 5-10% of people simply never have problems no matter how/if they brush. I've gone weeks without brushing (think long backpacking trips) and the only ill effect is pungent breath and a film that takes 20 minutes of good brushing later to remove. I normally brush every day but only so my breath doesn't stink. I know it isn't dietary, because my wife and I eat the same diet and she still gets cavities, despite being an even more fastidious tooth brusher than I am.

    8. Re:Rubbish by Viol8 · · Score: 1

      "There is a very very strong statistical link between heart valve infections (which will kill you DRT if undetected) and dental hygine. Bacterial loads on gums or tooth infections can directly lead to not only infections in the head, but infections in the blood stream and cardiovascular system. "

      Excuse me if I'm not 100% convinced. The human gut has trillions of bacteria but you'd be dead or at least seriously ill without them. I find it doubtful that the far far smaller amount in the mouth has any serious affect on health one way or the other. It sounds like some piece of puff from a dental hygiene company trying to sell its products. Point me in the direction of some peer reviewed papers and I might change my mind.

  18. Patent expired ??? by ballpoint · · Score: 1

    I've been trying to convince my wife to stop buying hand wash containing bactericidals and instead just try to keep everything clean with common products.

    That said, I would not be amazed if some patent related to triclosan is due to expire. An excellent time for alarm and to push a new, supposedly less harmful, more expensive freshly patented replacement.

    --
    Flourescent (adj): smelling like ground wheat.
    1. Re:Patent expired ??? by Anonymous Coward · · Score: 0

      2900+ patents use or refer to triclosan. It's not as simple as you propose, but plausible.

    2. Re:Patent expired ??? by Anonymous Coward · · Score: 0

      Simple a mild soap and many times just water is better. But sometimes you need to whip out the cleaner. Most of the time the water+scrubbing action gets 99% of what is there. I have a hell of a time finding a good soap that does not have anti-bacterial in it. When cleaning my car I do not need that... And in many cases the side effects on the objects being cleaned is noticeable after time.

      For example many people use windex on TV's. If you read the instructions they call for a 'mild detergent and water'. Then these same people wonder why their TV's fog over. The windex chemically reacts with the plastic film on most TVs. Its good for glass and enamled surfaces.

      My wife *loves* bleach. Until I showed her it was was 'rusting' away some of the silverware and staining the countertops. Bleach is good for getting stains out of white cloths. Aside from that you do not use it much in the house...

      Use the right chemicals for the right job. Most bottles of stuff out there says exactly what it should be used for. Many people abuse that as 'hey it worked great that one time' then assume it works on other things.

  19. Living a "safe" life. by Ostracus · · Score: 1

    So are there any "safe" chemicals that we can use?

    --
    Shai Schticks:"You don't make peace with friends, you make peace with enemies"
    1. Re:Living a "safe" life. by TheGoodNamesWereGone · · Score: 1

      This reminds me of a one-panel cartoon I saw years & years ago. There are two glum-looking scientists in lab coats surrounded by Bunsen burners and all kinds of test equipment. One is holding a beaker full of liquid and says to the other, "The final results are in. EVERYTHING causes cancer!"

  20. I dunno by ThatsNotPudding · · Score: 1

    This is ridiculously in excess of any conceivable dose of Triclosan you could get unless you are an utterly unprotected employee of a Triclosan-using factory.

    I bet doctors and nurses in swamped urban ERs could get close.

  21. Not in all European toothpastes by Anonymous Coward · · Score: 1

    Check any tube of toothpaste from Colgate or Pepsodent sold in any European country, and you will not find Triclosan mentioned on any of them. This begs the question: why are the US citizens treated to this ingredient?

    The question of how useful the ingredient actually is also comes up. We over here in Europe don't have this ingredient, and many of us also use "all natural" toothpastes, yet gingivitis is not one bit more common per capita here than with the US citizens. Same goes for fluorization of water - this has been abolished in most European countries long ago, and none of these countries have "cavity problems" larger per capita than the US where fluorization is still done.

    1. Re:Not in all European toothpastes by Anonymous Coward · · Score: 0

      MODERATE THIS TO 5!!

    2. Re:Not in all European toothpastes by Anonymous Coward · · Score: 0

      Q: Why are the US citizens treated to this ingredient?
      A: Classified.

    3. Re:Not in all European toothpastes by Anonymous Coward · · Score: 0

      Because you think of Africans as being Europeans and viceversa just because both are in a place called US. Africans seem to be many more now, so...

  22. Evolution by spectrokid · · Score: 1, Interesting

    Yes, but if triclosan is such a miracle product, why aren't our bodies producing it naturally? Maybe because evolution showed there were some downsides?

    --

    10 ?"Hello World" life was simple then

    1. Re:Evolution by d3ac0n · · Score: 2, Informative

      One could say the same thing about MANY things that our lives depend on. Oxygen, water, amino acids, etc. Just because our bodies don't make it doesn't make it automatically harmful.

      I, for one, would like to see the concentrations of Triclosan used in this study compared against the average exposure concentration "in the wild".

      From the Abstract:

      TCS acutely depresses hemodynamics and grip strength in mice at doses ~12.5 mg/kg i.p., and a concentration ~0.52 uM in water compromises swimming performance in larval fathead minnow.

      Now, I am not a scientist, but shouldn't the second measurement be listed in ppm, not micrometers? I mean, who cares how many micrometers they put into the water if we don't know how much water they used? 0.52uM is a HUGE amount when mixed with an equal amount of water. it's nothing in a bathtub.

      Can a scientist type person please clarify this for the less-sciency of us?

      (Note: I had to change some of the symbols so that they would output clearly on /. the "~" replaces the stacked ">_" and the u replaces the greek symbol for "micro".)

      --
      Official Heretic from the "Church of Global Warming". Proven right thanks to whistle blowers. AGW = Flat Earth Theory
    2. Re:Evolution by Anonymous Coward · · Score: 3, Informative

      the M in 0.52 uM is 1 mol/L so 0.52 umol/L :
      http://en.wikipedia.org/wiki/Molar_concentration

    3. Re:Evolution by Anonymous Coward · · Score: 0

      Isn't it micromoles?

    4. Re:Evolution by queazocotal · · Score: 5, Informative

      In context.
      http://www.ncbi.nlm.nih.gov/pubmed/22885664

      Urinary levels of bisphenol A, triclosan and 4-nonylphenol in a general Belgian population.

      'Geometric mean concentration was determined for bisphenol A at 2.55ug/l and for triclosan at 2.70ug/l'

      Now, Triclosans molar mass is around 300.
      0.52uMol/l is therefore 300 times this - 150ug/l.
      So, this is lots higher - 50 times - that in the general population.
      (Assuming urine and blood are of similar concentration, I can find no papers on this in 2 mins)

      However, 50* is not a stupid amount to exceed dosages by, especially given that it's likely that some humans will exceed the average by at least 5 times.

    5. Re:Evolution by whovian · · Score: 1

      Yes, but if triclosan is such a miracle product, why aren't our bodies producing it naturally?
      Maybe because evolution showed there were some downsides?

      Why aren't our bodies producing venom with which we can kill live prey to eat it?
      The gene(s) has to be there, and it has to be activated.
      Currently not having the gene doesn't necessarily mean we cannot acquire it.

      --
      To-do List: Receive telemarketing call during a tornado warning. Check.
    6. Re:Evolution by Type44Q · · Score: 1

      One could say the same thing about MANY things that our lives depend on. Oxygen, water, amino acids, etc.

      So... you're comparing these essential, necessary things to a toxic (and no doubt highy carcinogenic) man-made substance... and let me guess: you don't see the flaw in your line of reasoning? :p

    7. Re:Evolution by Anonymous Coward · · Score: 0

      No, he's purposely showing a flaw in the GGP's line of reasoning.

    8. Re:Evolution by Hatta · · Score: 3, Informative

      Can a scientist type person please clarify this for the less-sciency of us?

      uM is micromolar, not micrometer. Micrometer is um. Molarity is a a unit of concentration where 1M is one mole of a substance per liter. A mole is the number of atoms of a substance it takes for the actual weight to match the molecular weight. e.g. The molecular weight of an oxygen molecule (O2) is twice the molecular weight of oxygen(2x16=32). So one mole of O2 weighs 32g.

      The actual numerical value of the mole is avogadro's number(6.02x10^23), but it's not really necessary to work with the actual number when you're doing concentration calculations like this.

      --
      Give me Classic Slashdot or give me death!
    9. Re:Evolution by jo_ham · · Score: 1

      It is handy when working out how much a mole of M&M's cost though, given the average weight of a single M&M and the cost per giant bag that you can buy in bulk.

      It's a lot.

    10. Re:Evolution by sjames · · Score: 1

      In particular, it's not a stupid amount given that the tests used in the experiment may not be sufficiently sensitive to detect small but existent effects that occur at more realistic concentrations.

      This experiment provides the evidence that a more difficult/expensive experiment to detect effects at a lower concentration is warranted.

    11. Re:Evolution by sudden.zero · · Score: 1

      Technically our bodies have a hand in producing Oxygen. We breath out CO2 which plants use to produce Oxygen so, technically we are part of the Oxygen production process.

  23. Re:Was It In the Homes of All Those American... by blackest_k · · Score: 1

    You are being rather silly, there are a rather significant number of Americans, 600 million or so which is a rather large pool in which to find talented atheletes, compared with other countries where populations are smaller you would expect a larger proportion of medals.

    http://www.medalspercapita.com/ is interesting when you break down medals against the population size you find the USA at 49th place and Ireland at 22nd and the UK at 23rd.

    with Gold medals the USA rises to 28th place UK is 11th and Ireland is 23rd going by GDP USA was 66th

    In terms of obesity the USA ranks No 1 http://www.nationmaster.com/graph/hea_obe-health-obesity 30.6%
    followed by Mexico and the UK thou to be fair positions 2 - 9 only are relatively close 18 - 24%

    Health wise thou you really don't want to be Mexican.

    So more directly on topic you cannot compare the health and fitness of a nation just on the number of medals won. New Zealand seems to be one of the healthiest places to live if your white and English speaking.

  24. Re:Triclosan is not the only drug found in waterwa by Anonymous Coward · · Score: 0

    Need to stress this, Triclosan is not the only drug found in waterways

    Stress it for the terminally oblivious anyways. Anybody who has been paying even a minimal amount of attention for the past couple of decades would have heard mention of prescription and non-prescription drugs and compounds being present in waterways and bodies of water.

    Or maybe it's just me being an information sponge.

  25. Most of the chemicals... by Anonymous Coward · · Score: 0

    ...and substances (85%) you come into contact with every day have never been tested for their effects on humans. Eighty-five percent of all chemicals have simply never been tested but are used with total disregard for your safety and health.

  26. Worse than I thought by erroneus · · Score: 1

    And we worry about superbugs being created while we have this needless anti-bacterial in everything INCLUDING ourselves. (Did you catch the "it's in urine samples of over 75% of people over 5" bit?)

    It is well known and has been for some time that to keep a healthy digestive system, we need certain types of bacteria. Has triclosan been cleared against not killing those important bacteria?

    And what of the superbugs?!

    I'm all for necessary use of antibiotics and antibacterials, but not for ongoing prophylactic use! It weakens the immune system and build stronger bugs.

    This is making me sick...

  27. Stop by Anonymous Coward · · Score: 0

    So instead of killing all the industrialists we just sit here choking on their filth as they drive the species to extinction?

  28. Re:Triclosan is not the only drug found in waterwa by cffrost · · Score: 1

    I read an article about 10 years ago that nano-silver particles that we human are using - to kill bacteria, -somehow entered the waterways and end up killing a lot of microbial lifeforms, and the chain reaction (according to the articles that i read, can't find the links to them anymore, sorry) was worrying

    The oligodynamic effect is one of the mechanisms by which metals such as silver and copper kill some microorganisms. A benefit in the applications of doorknobs, silverware and copper plumbing; not so much in washing machines and dishwashers that exploit the effect, if what you say is true.

    Human consumption of solutions containing colloidal silver (as done in homeopathy) causes an irreversible cosmetic condition, argyria, in which the patient's skin turns a sliver-blue color.

    --
    Thank you, Edward Snowden.

    "Arguments from authority are worthless." —Carl Sagan
  29. Re:Triclosan is not the only drug found in waterwa by rhsanborn · · Score: 1

    We find copper for the same reasons as silver. Scientists have also found increases estrogen and estrogen-like chemicals, and there was a story recently about a marked increase in the amount of caffeine in waterways, likely from human waste.

  30. in ppm by nten · · Score: 1

    I think 0.54 micromols/L is something like 3E-5 ppm. But I could be doing that wrong.

    --
    refactor the law, its bloated, confusing and unmaintainable.
  31. Re:Was It In the Homes of All Those American... by SternisheFan · · Score: 1

    You are being rather silly, there are a rather significant number of Americans, 600 million or so Where does that number come from? U.S. populatipn is 314 million. http://www.census.gov/main/www/popclock.html

  32. The industry responds. by daleallan · · Score: 3, Informative

    The industry responded today with this, saying the research distorts the real world use of triclosan based on faulty comparisons to overdosed test subjects : http://www.prnewswire.com/news-releases/research-on-key-antibacterial-ingredient-distorts-real-world-use-166179966.html

  33. Re:Was It In the Homes of All Those American... by ledow · · Score: 1

    "Kicked the world's ass"?

    Only if you go by total number of medals won. And seeing as you fielded more athletes then any other competitor except the UK, that's hardly surprising.

    Now medals per event (or even number of athletes) entered? That would be a different matter. By that standard China whip your ass (and the UK's, but hell, we lose at everything including sports we invented).

    America just has the money to field lots of athletes, some portion of whom will win a medal on an international stage. The proportion isn't the best in the world, it's just the sheer weight of numbers and the money to send them all over and enter them. If China entered more athletes, you'd have had a harder time.

    Hell, the UK fielded virtually the same number of athletes as the US, but the total population is one fifth of yours (but, hey, it was the London Olympics). And the UK got 63% as many medals. All that tells me is that, per capita, you get a lot less medals than lots of other places on the planet. Per athlete, you get a lot less medals than some other places on the planet.

    If you took an equivalent size population from other places in the world, you'd actually come around about the middle somewhere. If that. By comparison, it's really nothing to shout about.

    And, hell, we're now complaining in the UK for putting on quite a poor performance and encouraging more sport in schools, etc. That's how we took the news of the number of medals we got, because we thought it was a bit pants.

  34. Probiotics would be better by PeterM+from+Berkeley · · Score: 1

    I recall reading that one can culture beneficial bacteria in your mouth that outcompete the bacteria that cause tooth decay and gingivitis. No cavities again ever. For some reason dentists don't seem to be pushing this treatment, wonder why.

    (Self-interest, or is the claim bogus?)

    --PM

  35. Long showers by sl4shd0rk · · Score: 1

    Might explain erectile dysfunction

    --
    Join the Slashcott! Feb 10 thru Feb 17!
  36. Re:Triclosan is not the only drug found in waterwa by Anonymous Coward · · Score: 0

    Those old findings are incorrect and poorly interpreted. Most of the noble metals in bulk will shed Nanomaterials in ambient conditions if exposed to moderate humidity. It ain't the nano, it's the mass, and that hasn't changed much.

  37. Re:Triclosan is not the only drug found in waterwa by khallow · · Score: 1

    there was a story recently about a marked increase in the amount of caffeine in waterways, likely from human waste.

    Likely from plants, which is where caffeine comes from in the first place. And it wasn't a "marked increase", but just detection of caffeine. I imagine some regions especially deserts would see an increase in caffeine due to more plants and water from human agriculture and landscaping.

  38. Truths really do need appropriate context: by Hartree · · Score: 1

    Seat belts increase the rate of cancer.

    (Cancer is a disease that becomes more common in old age. Seatbelts help keep you from being killed at a young age before you're likely to develop cancer.)

    This is not a reason for limiting seatbelt use.

    1. Re:Truths really do need appropriate context: by TheGoodNamesWereGone · · Score: 1

      Where does it end? When do the nattering nabobs of 'natural' say we've regressed back enough to the Stone Age so that our lifespans are back to 40 because God forbid we should do anything like use antibiotics, put flouride in the water to stop tooth decay, drive cars, or use air conditioners/heaters?

  39. It's not in everyone's home by Anonymous Coward · · Score: 0

    It's not in our home. We have been avoiding it for years, and will not purchase products that have it.

    I am also sure they do not have it in most of the third world.

    So, it's a bit disingenuous to say that "it is in everyone's home." I am sure there are millions of homes throughout the world that don't have it.

    Oh wait, is this another one of those US-centric stories? I thought Slashdot was a worldwide site with NPOV. Sorry, my mistake.

  40. Re:Triclosan is not the only drug found in waterwa by hawkinspeter · · Score: 1

    You should be safe drinking litres of homeopathic colloidal silver as it's statistically not going to contain any silver at all.

    --
    You're a temporary arrangement of matter sliding towards oblivion in a cold, uncaring universe
  41. Heart Muscle? by jasontromm · · Score: 1

    How would this chemical make its way from your skin to your heart muscle? Seems like you'd have to put an awful lot of hand sanitizer on your skin for enough of it to get into your bloodstream and make it's way through the circulatory system.

    --
    "Politicians always tell the truth, when they're calling each other liars."
  42. Re:Was It In the Homes of All Those American... by Anonymous Coward · · Score: 0

    Aw, I'm just sick of all these dire "We're all gonna die" alerts about this or that chemical. Hey, if it was so bad, we'd have won zero medals, that's all.

  43. soulskill has a breakthrough! by Anonymous Coward · · Score: 0

    "although this makes me think twice about continuing to brush with it"

  44. Not My House by wzinc · · Score: 1

    I don't buy antibacterial soaps for this exact reason. Germs are my friends; they help my immune system. I'm sure I run into antibacterial soap in restaurants, etc, but that's a lot less than having it at home.

  45. Superior Alternative to Colgate Total by wytcld · · Score: 2

    I stopped using Colgate Total after becoming aware of this issue a year ago, after a decade's use. Switched to Tom's of Maine Whole Care. There was an immediate, radical difference. While using Colgate Total - two brushings a day - I'd wake up with foul breath. That got much better with Tom's within the first few days, and has continued to improve.

    The thing is, just as killing off much of the bacteria in your gut is a really bad idea, so is killing off much of the bacteria in your mouth. It's an ecosystem. Continuously assaulting it is not the way to bring it into health. Just went to the dentist, and my teeth were cleaner, my gums in better shape, than when I'd been using the Colgate. Not that they were in bad shape before. Just that this time there was less work for the hygenist, and less to prompt a closer check by the dentist.

    --
    "with their freedom lost all virtue lose" - Milton
    1. Re:Superior Alternative to Colgate Total by Anonymous Coward · · Score: 0

      I know since you're a rigorous empiricist that there's no possible way that you would have overlooked the possibility that you were just less attentive to your oral hygiene until you became interested by a popular issue that prompted you to choose a new, exciting toothpaste which lead to better or more frequent brushing habits.

      However, as a tip from someone who cultures bacteria for a living and whose wife is a RDH (too perfect, right?), you don't actually need toothpaste. You just need to regularly remove plaque from the teeth, gums, and tongue, and minimize the duration of exposure to things that lower your mouth's pH (it's much better to chug your soda than to sip it all day) and to fermentable carbohydrates (to deprive bacteria of food), especially at night. If you brush and floss without toothpaste, wait twenty minutes after you eat, and be sure to rinse out the bacteria you loosed into your oral cavity afterwards with water or a solution of salt and/or baking soda.

  46. It's been in use for 40 years by GrumpySteen · · Score: 1

    Has there been even one documented case of it actually affecting any man, woman, child, pet, livestock animal or anything else other than bacteria? No? Then why is everyone freaking out about this study? Do we not have better things to worry about other than a possible effect which hasn't been observed despite hundreds of millions of people being exposed to triclosan for decades?

    I think we abuse the crap out of antibacterials and there are a number of unpleasant ramifications of that which would be good reasons to limit their use, but this just isn't one of those reasons.

  47. nano silver und samsung by Penurious+Penguin · · Score: 1

    One example of your final paragraph is illustrated here.
    According to wiki, more than 200 nanotech-silver products are on the market, which is probably enough to have some effect. Most distinctly, I remember Samsung being sued over their plans to distribute nano-silver lined washing/drying machines to hospitals. Samsung claimed that the machines would be so effective as to eliminate the need for bleach. Others claimed it would wreak havoc on municipal sewage-management which relies on bacteria to break down the waste.

    --
    Forward! -- Emperor Norton, 2012
  48. Re:Triclosan is not the only drug found in waterwa by I_am_Jack · · Score: 2

    Actually, in the Puget Sound, caffeine comes courtesy of a Starbucks on every corner: http://www.isciencetimes.com/articles/3617/20120807/caffeine-pollution-pacific-waters.htm. Artificial flavor esters are also found in the water.

  49. Re:Triclosan is not the only drug found in waterwa by Anonymous Coward · · Score: 0

    So you are saying, the little fish are strung out on caffeine, but have no muscle strength to anything?

  50. What's next by Anonymous Coward · · Score: 0

    It is a good bet that the chemical manufacturers pull off the shelf to replace Triclosan will be as bad or worse.

    I am looking forward to seeing "Contains noTriclosan" on labels soon.

  51. Long term studies by Anonymous Coward · · Score: 0

    I wonder how long the studies were done on this chemical before it was allowed to be invade the world?
    I just love how shit is pushed out the door in 5 years or less and the long term effects are never known until the damage has been done.
    Like now

  52. Skin Absorbs 60% of Products Used Topically by Shompol · · Score: 1

    Your skin absorbs far more stuff than you think. This is the impression I got over the years, but just to back it up i will throw a link at you.

  53. dose and subject by manaway · · Score: 1

    In the end, it all comes down to the dose.

    Well, dose size and other concerns, like subject development, genetics, and environment. Giving an embryo and an adult mammal equivalent doses will have varying effects; depending on the chemical. Frequent blood alcohol levels of .10 are fun for adults, not so funny for a fetus. If triclosan does impair muscle function then embryo (and later) development would certainly be a concern and worth studying.

  54. Self-Defeating Mechanism by Fned · · Score: 2

    It's an antibacterial agent that weakens your immune system when you're exposed to it.

    They should have banned the stupid shit as soon as that was discovered.

    1. Re:Self-Defeating Mechanism by twistofsin · · Score: 1

      Is the weakening of the immune system a direct result of the exposure or a side effect of living in a sterile environment?

  55. Re:Was It In the Homes of All Those American... by blackest_k · · Score: 1

    yes your correct, my mistake sorry about that i thought it was 600 million. The first link gives the population as 313 million and some. Still doesn't invalidate the figures thou.

  56. YES_Who would have thought... by Anonymous Coward · · Score: 0

    It's the burden of the company, entrepreneur, developer, chemist, physicist, scientist, bio-geneticist, etc... to assure that's items sold are
    "safe". Our entire world market is based on sell now, pay later and in most cases companies will never pay.
    The process of creating and placing practically anything to market is totally controlled by companies, politics and LOTS of money.
    Only companies with a somewhat "moral compass" or objective tend to assure that their products are safe - the vast majority do not.

    Making the case to change this or put laws into place to protect against this, is almost unsurmountable since so many companies
    are outside of the US laws and therefore, reach.

  57. Popcorn by Anonymous Coward · · Score: 0

    Seem to recall quite a buzz about the chemical used to butter the kernels on microwaved popcorn. When the employees started showing bizarre symptoms and the news leaked, you saw stories about Diacetyl (DA) - the chemical compound used to form the buttery yumminess found on
    nuked corn kernels...

    Not only did a number of manufacturers change - but several commercials featuring 'DA-FREE' were marketed. Some makers still proudly display this badge on boxes of popcorn today....

    The same info has been studied in regards to immunizations all the way to the current battle over HFCS (High Fructose Corn Syrup - IMHP the single-most reason why diabetes and obesity has increased in the USA), and the billions spent by the Corn Lobby Farmers to battle the
    science....
    HFCS is not sugar, and it's not good for you (why do you think you can buy Mexican Coca-Cola still in your favorite market - because in Mexico HFCS is BANNED!!!)

    So, the story goes - "buyer beware"!

  58. Re:Triclosan is not the only drug found in waterwa by khallow · · Score: 1

    To researchers surprise the waters nearest waste treatment plants and large populations did not show the highest concentration of caffeine. High levels were found in Carl Washburn State Park, for example, an area not near any potential pollution sources.

    I don't think the story backs your assertion. Plus I think it's a bad error to attribute caffeine to humans when there are natural sources for it and no way currently to distinguish between the two. We may well find that most northwest caffeine found in water comes from undiscovered plants or fungi growing in the area rather than humans.

  59. Banned in Europe by Vincent77 · · Score: 1

    According to http://www.beyondpesticides.org/dailynewsblog/?p=3574 and other sources, this research is already years old. Europe has acted on the research in 2010 to ban the additive.

  60. Salt water gargling prevents gingivitis and is.. by couchslug · · Score: 1

    .. dirt cheap.

    There is good reason dentists recommend salt water gargling after tooth removal and oral surgery. It works very well. Try it.

    --
    "This post is an artistic work of fiction and falsehood. Only a fool would take anything posted here as fact."
  61. What about aluminum dihydroxichlorhydroxide? by Anonymous Coward · · Score: 0

    Triclosan just wouldnt do as deodorant. I used AD for so many years that I no longer have bad smell sweat. But it went out of the market, along with aluminum hydrochlorhydroxide, I ve waited years for it to appear in another brand because it worked and triclosan did not. Now if triclosan is retired... we ll have no deodorant substances left! Even if it did not worl fo me, but I wonder what were the **reasons** to retire AD and AH? I do find distressing that triclosan is the active ingredient in many OTC products, because from my viewpoint it is like getting a simple creme and nothing else worth the while. But overall it does seem that the pressure is toward... disposing of all bactericide products, like going back in time to before biochemistry and medical science. At least one religion does have that opinion and it is Hinduism, bactericides are wrong because they KILL, period. It also does seem weird that no previous studies were performed, when triclosan was discovered/invented. I would even suspect it was overproduced because it was known it could produce muscular weakness! But that is not the point of the study being commented here... Fact is: medicine is not really well accepted by most people in the world, but you think all are happy commenting in slashdot PER FORCE...