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Researchers Enable Mice To Exhale Fat

destinyland writes "UCLA researchers made a startling discovery: genetic alterations enable mice to convert fat into carbon dioxide. Mammals digest fats differently than bacteria — so researchers introduced bacteria genes into mouse livers, and 'the excess fat was literally released into thin air.' (One researcher calls it 'an unconventional idea which we borrowed from plants and bacteria.') The research potentially could help treat serious medical conditions including diabetes, heart disease — and of course, obesity."

73 of 328 comments (clear)

  1. Global warming? by basementman · · Score: 2, Funny

    The earth is screwed if we ever get this to work on humans. Good news is that we will be able to build Burger Kings in Antarctica. Bad news is that the burgers will be made out of penguins.

    1. Re:Global warming? by rs79 · · Score: 3, Funny

      Haven't they heard of global warming? Can't they get them to exhale chocolate?

      --
      Need Mercedes parts ?
    2. Re:Global warming? by Zerth · · Score: 2, Funny

      You'd have to be able to exhale fat if you ate penguin burgers. Those guys are so fat, they can go for a month or two without eating practically anything.

      Being fat actually gets the males more loving, as the females of some species are more likely to mate with those who have a more resonant mating call, indicating thickness and thus likelyhood of not keeling over from hunger while the female runs off for weeks at a time.

      You could practically cook an emperor penguin on a fire of its own grease.

    3. Re:Global warming? by RsG · · Score: 4, Informative

      Ugh. I get tired of having to explain this. You'd think it'd stick the first dozen times or so, and I wouldn't have to keep repeating myself.

      The CO2 from your breath is not the problem. The CO2 from your tailpipe is.

      The reason is their source. Carbon from food is ultimately bound via photosynthesis; you either eat the plants or eat the animals that eat the plants. Photosynthesis removes free CO2 from the air and binds the carbon, releasing the oxygen. Any high school student can tell you this.

      Every last ounce of CO2 coming out of your mouth, right now as you're reading this, was previously bound up as food, which was living tissue once, which (directly or indirectly) grew via taking CO2 out of the air. It's a closed cycle. Exhaling more CO2 will not result in a net increase in the carbon cycle.

      Your tailpipe is different. The hydrocarbons you're burning come from fossil fuels, which have been sequestered from the atmosphere for the past few million years. Burning them does add a net amount of CO2 to the carbon cycle.

      Climate change is not about what's in the air, it's about what's no longer in the ground. This is why Biofuels are a solution - the IC engine can be totally identical to one running on fossil fuels, but the hydrocarbons are grown rather than mined.

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
    4. Re:Global warming? by blindseer · · Score: 2, Informative

      You are mistaken. Any modern car that produces carbon MONoxide is broken. Emission controls, like catalytic converters, keep CO output to a minimum. CO is produced by the incomplete combustion of hydrocarbons, and modern engines are tuned to do their best to perform a complete combustion of the fuel.

      The complete combustion of hydrocarbons produce water and CO2.

      --
      I am armed because I am free. I am free because I am armed.
    5. Re:Global warming? by chrb · · Score: 4, Informative

      Quite literally, we're enhancing our crop yields by burning fossil fuels. It's a minute increase in CO2, and I do mean very small. When compared with all greenhouse gases, it's not even background noise... Fossil fuels do not add to the green house gases in the atmosphere in amounts that we can even measure.

      I take it you aren't a scientist? The increase in co2 is a measurable, real increase. There are physicists who measure the atmospheric carbon dioxide levels with great accuracy. Why do you think that that this is not possible?

      By their own accords, those who want to see greenhouse gases curtailed, are only talking about 1/20th of a degree in terms of climate change. That number is probably being generous.

      Did you miss the G8 meeting a few days ago where the politicians agreed to try and limit warming to 2 degrees? Who are these serious climatologists who predict warming of only 1/20th a degree? Certainly not the IPCC reports.

      Increased CO2 = Bigger, better, healthier plant life. Which will equate to more available food for the human population.

      Perhaps you would like to study the atmosphere and foliation of Mars to see where this argument fails?

      The numbers supporting a huge campaign to combat global climate change just simply do not add up. I hate this issue, because so many people do not look at the numbers, and believe the FUD that we've been taught since we were children. I too believed all of it, up until a couple of years ago. I took a good long look at the numbers, what was being said. Low and behold, I made my own decision, and every time I hear combating carbon emissions, well let's just say whoever said it goes down a few levels on my credibility meter.

      Sounds like you've been drinking the "kool-aide", in your magical universe where we can release large amounts of a previously sequestered greenhouse gas into the atmosphere and it has no effect.

  2. Well... by nebaz · · Score: 4, Funny

    I inhale cheeseburgers, I guess it would only be right to exhale them too.

    --
    Rhymes that keep their secrets will unfold behind the clouds.There upon the rainbow is the answer to a neverending story
    1. Re:Well... by value_added · · Score: 4, Insightful

      I inhale cheeseburgers, I guess it would only be right to exhale them too.

      One of the fundamental principles of the fast food industry is that the "food" shouldn't require any chewing. Obvious, but only after some careful thought, but wildly successful.

      The generic cheeseburger you inhale is constructed from greasy patties of frozen ground meat, a bun that lightly resembles bread, a thick viscous layer of an edible oil product colored to resemble cheese, and copious amounts of additional vegetable oil mixtures (using various combinations of egg products, corn syrup, and flavourings, colour, and gum) that keeps everything soft and wet.

      Substitute one or more of the ingredients with the real or fresh versions, and I suspect you won't be able to inhale. Whether chewing is a feature, I'll leave to you to decide.

    2. Re:Well... by Anonymous Coward · · Score: 5, Funny

      oh goodness gracious how I love that food that resembles food.

      A former mayor of Philadelphia was once asked why no one else in the country can justly replicate the famous phili cheesesteak. He replied that their doing two things wrong 1) they're using real cheese and 2) they're using real meat.

  3. obPublic Service Announcement by girlintraining · · Score: 2, Insightful

    It's a stunning and amazing medical breakthrough -- finally, people don't have to be fat! In other news, eating a well balanced diet, excercise, seen sulking in the corner for not being hip enough. Dr. House overheard saying "It's stuff like this that makes me want to not dangle anymore."

    --
    #fuckbeta #iamslashdot #dicemustdie
    1. Re:obPublic Service Announcement by rolfwind · · Score: 5, Insightful

      It's a stunning and amazing medical breakthrough -- finally, people don't have to be fat! In other news, eating a well balanced diet, excercise, seen sulking in the corner for not being hip enough. Dr. House overheard saying "It's stuff like this that makes me want to not dangle anymore."

      You know, I see this a lot when news that could help the obese comes along. I think it's a bit ignorant. First, would you have the same reaction if it similiar news (possible breakthrough) about compulsive gamblers, smokers, alcohilcs, hard drugs, or any other addiction? What about the debilitating OCD like Howard Hughs suffered or any mental disease really? I mean, buck it up and have some will power!

      I know many fat people who go days on in eating less than a 120lb person, maybe even losing the weight, only to be broken by one binge and rapidly going back to their old ways. I don't think it's just a lack of willpower, a lot of it is unnatural. Domesticated animals also get fat when there's always food in the bowl. Maybe it's in our nature: for so many generation, the next meal was uncertain, grab it while you still can.

      And then there are things like HFCS which adds to the problem. 100 years ago, regular chocolate was a real WEEKLY treat for an average kid, if at all, 300 years ago, sugar was kept in silver lockboxes due to expensive nature, now we have this crap swamping the area.

      Imagine in 100 years VR really gets there. I mean really, they bypass your eyeballs, wired right into the brain, touch, feel, smell, everything. Instant orgasm. Imagine how many people will be addicted. Not just because they lack the will power, but the human animal gets exposed to stimuli that in turn rewards its basest and most powerful areas of the brain and we act holier-than-thou when people actually get hooked.

      Food, for some people, is the overriding addiction that make other addictions fail. Any help they get is good. And Dr. House would know that.

    2. Re:obPublic Service Announcement by clang_jangle · · Score: 3, Insightful

      I just don't believe in that whole "victim-of-the-modern-diet" argument so many fat people like to use as an excuse. I live in the same society, shop in the same stores, and I'm not fat. It's called self-control.
      My mother has been at least 100 lbs overweight for many years. She insists she "hardly eats anything at all and just can't lose weight", but having been raised by her, I know better -- life with her is a non-stop cavalcade of food. Like all addicts, fat people lie.

      --
      Caveat Utilitor
    3. Re:obPublic Service Announcement by fuzzyfuzzyfungus · · Score: 4, Interesting

      Your point is well made, and quite important; but I don't think it goes quite far enough. Even if we did cling to the naive view of "willpower", so what? Is technology that makes life easier a bad thing? Why suffer when you can have your cake and eat it too?

      Sure, you could avoid weight gain by eating your veggies and running a lot; but if you can have your steak and be slim too, why not? There is something really perverse and masochistic about opposition to this sort of tech(and masochism is fine, if that's your thing; but imposing it on others is a bit much). There are loads of situations where you could avoid consequences by "self control", or you could just use a little engineering. If I need dental work, should I skip the anesthetic and just suck it up? Why? Anesthetics are cheap and pain sucks. If my eyes aren't so good, should I just squint? Why? A few dollars worth of polycarbonate and some optical know-how will make my life substantially better. Should I refrain from sex unless I can deal with children? Why? Prophylactics are cheap and highly effective.

      There are, certainly, some things that no amount of technology will compensate for, mostly because they are unethical; but in cases where the downsides of indulgence can be cleared up with a little engineering, advocating self-control instead is just puritanism. Perfectly fine to make the choice for yourself, or if you suffer the externalities; but damn perverse to impose on others.

    4. Re:obPublic Service Announcement by Anonymous Coward · · Score: 5, Insightful

      I just don't believe in that whole "victim-of-the-modern-diet" argument so many fat people like to use as an excuse. I live in the same society, shop in the same stores, and I'm not fat. It's called self-control.

      Anecdotal evidence. I know people that smoke 3 packs a day and don't get cancer therefore smoking doesn't cause cancer. I may be fat but at least I didn't fail logic.

    5. Re:obPublic Service Announcement by tacarat · · Score: 2, Interesting

      Packs of hungry wolves eating the sickly, old and too fat to run for their lives should be reintroduced into our cities. Save an endangered species and get human evolution back on track.

      --
      "Common sense will be the death of us all"
    6. Re:obPublic Service Announcement by Daemonax · · Score: 3, Interesting

      To paraphrase Abbie Hoffman.
      Telling obese people to just stop eating and exercise is like telling manic-depressives to just cheer up.

      Obesity is a predictable problem of placing humans in an environment with surplus food. We have evolved in an environment where food was not plentiful, and one of the best behavioural traits to have if you wanted to survive was to eat as much as you could when you could. That behavioural trait is now causing problems for many people.
      Obesity is disgusting, but telling people that isn't going to solve the problem. Personally I wouldn't care one bit if taxes were increased (which would result in increased prices) for junk-food outlets like McDonalds and Burger King, it would hopefully limit the amount of shit that people eat, and would also be able to provide some funding for the massive costs that are going to be coming along very soon as obese and overweight people start requiring medical help.

      According to an article on the BBC about a week ago, 44% of children in Mississippi are obese or overweight, that is disgusting and something needs to be done to fix this problem.

      Apparently more than 25% of adults in my country, New Zealand, are obese. It is a serious problem, anything higher than 5% obesity in a population should be taken as a serious problem.

    7. Re:obPublic Service Announcement by FishWithAHammer · · Score: 2, Insightful

      Feel free, but we get our guns.

      --
      "You can either have software quality or you can have pointer arithmetic, but you cannot have both at the same time."
    8. Re:obPublic Service Announcement by feepness · · Score: 4, Informative

      I know many fat people who go days on in eating less than a 120lb person, maybe even losing the weight, only to be broken by one binge and rapidly going back to their old ways.

      That's because they are doing it wrong. They need to eat exactly what a person of their size should be eating or a teeny bit less, their body will naturally approach the correct weight with a bit of exercise thrown in. By going so they almost certainly binge because their body thinks it is starving.

      Yes, this takes. It also works.

    9. Re:obPublic Service Announcement by iamhassi · · Score: 2, Interesting

      "I live in the same society, shop in the same stores, and I'm not fat. It's called self-control."

      If that's what you believe then you fail at googling.

      Can a person who is genetically pre-disposed to be fat be skinny? Of course, I've seen biggest loser, but they'll have to workout 12 hours a day and eat less than 1300 calories to reach the same size other people take for granted.

      And I'm very tired of skinny people going "I have self-control, you fat people don't". Um, no. I see your shopping carts skinny people, it's not stuffed with celery and carrots and spinach, it's the same thing as the fat people. And I see the skinny people buying pizzas and super-sized meals too. I've dated girls (on /.?? I know right?!) who could eat McD's 4 times a day and stay 112 lbs and never get off the couch, and other girls who ate vegetables and soup and gym 3 times a week and couldn't break 200 lbs.

      I gained 60+ lbs recently. I stopped running 5 miles a day and stopped eating 2 lbs of spinach daily and ate "normal" food. That's all it took.

      I will say this: if you're fat and you don't run 5 miles a day then don't whine "it's genetic, I can't help it". You can help it, you're just not trying. Until you can run 5 miles in a hour (12 minute miles, a slow run) everyday you can't say "I can't help being fat" because you're not even trying.

      --
      my karma will be here long after I'm gone
    10. Re:obPublic Service Announcement by lessthan · · Score: 2, Insightful

      How exactly does one "cheat nature?" What game am I playing? If I cheat and win, do I win a prize? I hope it is a huge stuffed bear. I love those things!

      --
      Space Shuttle was a program that strapped humans to an explosion and tried to stab through the sky with fire and math
    11. Re:obPublic Service Announcement by PPH · · Score: 2, Funny

      Obesity is a predictable problem of placing humans in an environment with surplus food.

      No problem. Divert all that food into the production of fuel for my Hummer. That way, every time I fill up, I can feel good about helping to keep people thin.

      --
      Have gnu, will travel.
    12. Re:obPublic Service Announcement by fuzzyfuzzyfungus · · Score: 4, Insightful

      When you cheat nature, your prize is civilization.

    13. Re:obPublic Service Announcement by an+unsound+mind · · Score: 2, Insightful

      And I really am a cripple, so yeah, he's an insensitive clod.

    14. Re:obPublic Service Announcement by timeOday · · Score: 2, Insightful

      I just don't believe in that whole "victim-of-the-modern-diet" argument so many fat people like to use as an excuse. I live in the same society, shop in the same stores, and I'm not fat. It's called self-control.

      Good for you. I assume you eschew birth control for the same reasons. Food is for energy, sex is for making babies, if you don't want any, keep it permanently in your pants.

    15. Re:obPublic Service Announcement by nbates · · Score: 2, Insightful

      Haven't you heard? it is called "the moral standard of Mother Nature". Things have a natural order, which is eternal and pure, and humans (specially scientists) try to subvert it all the time. That usually goes very wrong, because crime doesn't pay.

    16. Re:obPublic Service Announcement by sjames · · Score: 2, Interesting

      While it doesn't help, the blame cannot be all on McD's. Personally, I achieved my lowest weight (merely 'overweight') after a year of biking 20 miles a day and staying under 1500 calories a day. I haven't eaten at McD's since my teen years (It's just not good eats :-) The problem is, it's just not possible to keep doing that and put in that 60+ hour work week.

    17. Re:obPublic Service Announcement by shaitand · · Score: 2, Informative

      In your world it costs $7 for a single burger at mcdonalds. In my world it costs $4 for 4 double cheeseburgers that will feed two adults and as for the drink... why would you buy the high profit items like fries and a drink? If you are out even an overpriced drink at a gas station is a better value than a fast food place and if you are taking it home drink something there. Drinks, side dishes, and appetizers these items are on the menu for the morons who don't value their money or somehow think Ronald is entitled to profits at their expense.

    18. Re:obPublic Service Announcement by 4D6963 · · Score: 2, Insightful

      Obesity is a predictable problem of placing humans in an environment with surplus food

      Yeah, that's what Americans like to think, but that's bullshit. Eating as much as you want doesn't make you fat. You can get fat off not eating enough but eating the wrong things. It's called malnutrition. If you eat the right food you can eat until you can't take anymore and not gain weight.

      See, for example, if you take 1960s France, the country was quite prosperous, everyone ate as much as they wanted, yet we didn't have an obesity problem. Child obesity was 3% in France in 1960, despite that "surplus" of food. But now, the eating culture has changed, under the strong American influence, and now child obesity reaches 17%. We still eat as much as we did in 1960, that is as much as we want, the difference is that what we eat is different.

      So no, eating as much as we need isn't the source of the problem, taxing McDonald's isn't the solution, somehow popularising good food is the way to go. How about some French cuisine between two pieces of bread?

      --
      You just got troll'd!
    19. Re:obPublic Service Announcement by sjames · · Score: 2, Informative

      It certainly is. Especially with the expndature of all the bike riding. That's how I can say with confidence that my weight cannot be attributed to poor eating, laziness, or many of the non-metabolic/genetic reasons typically cited by people who have never actually been overweight.

    20. Re:obPublic Service Announcement by fuzzyfuzzyfungus · · Score: 2, Insightful

      Out of curiosity, do you hate all voluntary deviations from a minimal standard of existence, or do you just hate fatties?

  4. Pfft, that's nothing. by fryjs · · Score: 4, Funny

    Politicians have been exhaling excrement for centuries.

  5. No, even worse. by tjstork · · Score: 4, Interesting

    The problem is that global warming legislation will raise energy costs, alter land use, and, ultimately, in a few hundred years, shorten the growing season. So we're pretty much setting ourselves up to go through getting a bit thinner. Cutting down on our ability to save fat is almost like evolutionary suicide. 100 years from now, it will be like the old days, people that are fat will be rare and obesity will be a sign of power and wealth.

    --
    This is my sig.
    1. Re:No, even worse. by fuzzyfuzzyfungus · · Score: 3, Interesting

      Were one to possess an evil streak several miles wide, engineering a virus to carry this little metabolism-enhancing genetic tweak would have... unpleasant effects on the bottom billion or two and, unlike most bioweapons, get the lardasses at home fit and trim.

      Sounds like a vote-winner to me.

    2. Re:No, even worse. by Anonymous Coward · · Score: 2, Interesting

      alter land use

      Land use is already being altered by weeks of scorching record highs down here where we actually grow the food you eat. Whine all you want about how New York having a cool day means the world isn't getting warmer; when the corn crops start dying from the longer (and hotter) growing season, you'll be more than "a bit thinner".

    3. Re:No, even worse. by jshazen · · Score: 2, Insightful

      With the oil/gas prices going back down from their highs last year, using corn to produce ethanol isn't cost-effective, so the artificial (non-food use) shortage is relieved.

    4. Re:No, even worse. by TinBromide · · Score: 4, Interesting

      The cost of corn is very very very dependent on the cost of oil. Due to the energy hungry nitrogen fixation process required to make the fertilizer so rich in energy it can be used to make bombs (see the Oklahoma city bombing for the effects a van-load can have), corn has been described as being "edible oil", due to it taking 2 calories of oil energy to create 1 calorie of corn energy. Oil goes down, corn prices go down, food prices go down. Don't get me started on the wet milling process required to make corn products into xanthan gum, corn oil, natural raspberry flavor, and the hundreds of other corn derivatives that you read on the ingredients label of just about every processed food. (but a 13:1 energy in:energy out ratio comes to mind). Also, when it comes to meat, it takes 9 pounds of corn to make 1 pound of cow. There is definitely a trickle down effect where the price of food is based on the price of oil.

      Other food prices are also dependent on oil prices due to fertilizer costs and transportation costs as well.

      --
      Is it sad that I am more likely to recognize you and your posts by your sig than your name or UID?
    5. Re:No, even worse. by c_forq · · Score: 2, Informative

      Having grown up in a family involved in different areas of the Ag industry, I am going to call bullshit. The biggest factor in corn pricing is government subsidies (I have a relative that is paid NOT to harvest 60+ acres of corn). Regarding fertilization, if you use too much nitrogen in corn it grows too fast and thin and collapses on itself, making it un-harvestable. Regarding cattle, the corn used for cattle more often than not is a lower grade than that sold for human consumption (worm and parasite infestations aren't as important if you're grinding it all up into gruel). Yes, oil and corn are related. No, it is not a direct relationship. It is more like how the sales of new cars effect the price of cattle (there is a clear effect, but it is not a direct, 1:1 relationship).

      --
      Computers allow humans to make mistakes at the fastest speeds known, with the possible exception of tequila and handguns
    6. Re:No, even worse. by Cruciform · · Score: 2, Interesting

      When I bought my Civic DX in 2002 it was 28 dollars to fill the bone dry tank.
      After Katrina, it cost 64 dollars at the max. I wanted to drag some oil execs out into the street and try some parking maneuvers on them that day.
      I haven't tanked up in two weeks, but it was around 40 then.

      -- interesting sig. joining the experiment--

    7. Re:No, even worse. by soundguy · · Score: 5, Interesting

      ... corn has been described as being "edible oil", due to it taking 2 calories of oil energy to create 1 calorie of corn energy.

      Bullshit. For millions of years, corn (and its ancestors) grew happily in the wild, uncultivated earth with only sunlight, water, and carbon dioxide for sustenance. For thousands of years, up until the mid-20th century, it grew on cultivated land with the addition of animal waste as a fertilizer. Just because we currently use petroleum-enhanced fertilizers to increase yields and lessen the need for crop rotation does NOT mean that they are in any way "required".

      ...it takes 9 pounds of corn to make 1 pound of cow.

      More bullshit. Cattle are currently fattened in feedlots using corn because it means higher profits from higher yield and more marbled (and therefore more expensive) muscle tissue. 100% natural-grass-fed cattle use up ZERO pounds of corn, and that's pretty much all they had to eat before they were domesticated.

      While I'm at it, I'm getting really sick of the most egregious lies that keep getting trotted out around here regarding the amount of petroleum products that are "REQUIRED" by modern farm machinery to grow and process "natural" foods. Again, just because it's currently fashionable and economically desirable to do things that way does NOT make it MANDATORY. The vast majority of farm equipment runs on diesel fuel, which is easily replaced with biodiesel or alcohol. Stationary machinery that is currently powered directly by fossil fuels or with electricity generated using those same fuels are often in geographical areas where electricity can be economically generated by wind, solar, burning biomass, methane from waste processing, or nuclear. In fact, combines and tractors don't move very fast or very far. There's no reason they couldn't operate with a couple tons of batteries and hi-torque locomotive drives instead of those Cat & Cummins diesels

      A lot of you seem to forget that there are vast stretches of farmland in the wide-open west that already have the majority of their power generated by nuclear and/or hydroelectric systems. In short, the only reason we aren't weaning ourselves off of "edible oil" is the greed and corruption of the US government (specifically farmbelt senators-for-sale), big agri-business, and especially the global petroleum cartels.

      If an alien armada landed tomorrow and vacuumed out 100% of the oil and coal reserves on this planet, we'd suffer for a decade or two, probably losing a big chunk of the population to starvation and wars over food, but eventually we'd ramp back up using alternate energy sources and within a generation, Hummer would be a viable vehicle brand again (possibly as Electra-Hummer or something) and we'd all be right back to not giving a rat's ass about where energy came from or how much of it we're using.

      --
      Nothing worthwhile ever happens before noon
    8. Re:No, even worse. by sumdumass · · Score: 3, Informative

      Bullshit. For millions of years, corn (and its ancestors) grew happily in the wild, uncultivated earth with only sunlight, water, and carbon dioxide for sustenance. For thousands of years, up until the mid-20th century, it grew on cultivated land with the addition of animal waste as a fertilizer. Just because we currently use petroleum-enhanced fertilizers to increase yields and lessen the need for crop rotation does NOT mean that they are in any way "required".

      What you describe is more costly then the current system. Prices still go up.

      More bullshit. Cattle are currently fattened in feedlots using corn because it means higher profits from higher yield and more marbled (and therefore more expensive) muscle tissue. 100% natural-grass-fed cattle use up ZERO pounds of corn, and that's pretty much all they had to eat before they were domesticated.

      And this way takes about a year and a half longer to bring a cow to market. Again, driving costs up. BTW, grass in pasture lands do no grow in the winter, hay is usually brought in and sometime corn silage when corn is not used as a feed.

      And yes, I do raise cattle on grass and hay.

      Also, the processes you are describing was economical before the need to feed as many people as are alive today was there. The ox or horse pulling a plow will not farm enough land for our current usages. Corn and animal prices would skyrocket if we went back to them.

      You know, you sort of sound like one of those "you can make rope from hemp and it's better then the rope in use today" type people. Except that when we switch to synthetic fibers, it wasn't because hemp rope was better, it was because the synthetic rope lasted about 3 years on the ocean where hemp rope needed replacing every 6 to 8 months. It made sense to use the synthetic crap because it was more efficient and cheaper. The same is with your, "they did it 2000 years ago, we can do it again today" attitude. While it is true, it can be done again, it can't be done efficiently or effectivly. And yes, I also live in Amish country and see a lot of farms worked in the old ways. They have five or more kids to a family and have them in the fields working by the time they are three or four. IT also takes them 10 to 15 times longer to prepare a field, about just as long to plant it, and longer then that to harvest it.

      The way it is now, most farmers have a profession outside the farm because the farm can't support them solely. IF they all went back to the old ways, then expect a serious increase in food prices or a shortage of food.

    9. Re:No, even worse. by aynoknman · · Score: 4, Insightful

      Markets don't lie.

      but they are frequently mistaken.

      --
      We need a "+1 -- nice sig" moderation.
  6. New Diet Pills! by PumpkinDog · · Score: 3, Funny

    The slogan writes itself "Don't Hold Your Breath"

  7. second-hand fat ... by BenBoy · · Score: 4, Funny

    ... just sayin'

    And yeah, I know it's CO2 ... you want a global-warming joke instead, *you* make it.

  8. But how would this be deployed? by Kell+Bengal · · Score: 5, Interesting

    Is this something that has to be engineered into an organism, or can it be applied after-market? From the sounds of it, it's a genetic splice and not something easily applied to preexisting organisms. TFA doesn't seem to say. Anyone know? Great news for the fatties of tomorrow, but what about the porkers of today?

    --
    Scientists point out problems, engineers fix them
    altslashdot.org: The future of slashdot.
    1. Re:But how would this be deployed? by CastrTroy · · Score: 2, Insightful

      I would wonder if some people already have these organisms as part of their bacteria in their body. If these organisms that convert fat to CO2 were already present in your digestive system, you could just get them to do the work for you.

      --

      Anthropic principle: We see the universe the way it is because if it were different we would not be here to see it.
  9. Fat Air by Anonymous Coward · · Score: 2, Funny

    Great... and then this "fat air" condenses out, and you're left with chubby rain, all over again.

  10. Carbon credits? by j-turkey · · Score: 2, Funny

    So will mice taking this fat-to-CO2 drug have to pay for extra carbon credits? ;P

    --

    -Turkey

  11. How to stop? by DoofusOfDeath · · Score: 4, Insightful

    So what happens when you're thin enough? How do you avoid going down to dangerously low amounts of stored fat?

    Do genetic modifications go away on their own over time, or do they propagate as the affected cells divide?

    1. Re:How to stop? by reverseengineer · · Score: 4, Informative

      Well, if I understand what's going on in this process, fat metabolism is occurring because the mammalian cells given the glyoxylate shunt genes don't know how to use them "properly." That is to say, plants, bacteria, and fungi use the shunt to turn fat stores into sugars. A major reason for doing this is because they need to build polysaccharide cell walls. We don't have these, so apparently if we have access to the glyoxylate shunt, we run through it, but get nothing out of it. Indeed, less than nothing- to make the dreaded car analogy, it's like sort of like the hit in fuel economy you take by driving with the air conditioner on- your fuel is powering a second motor, but it's one that doesn't contribute to the car's motion.

      In terms of energy usage, the glyoxylate shunt is one of those shortcuts that turn out to take longer in the end- isocitrate molecules that take the detour are broken apart at a net energy cost, then the glyoxylate formed grabs an acetyl-CoA that could have gone to a more productive use, and then returns to the beginning of the Krebs cycle, having accomplished nothing. The shunt steers away from a couple of highly energetically favorable reactions of the Krebs cycle, and runs through one that costs energy.

      The Krebs cycle, the metabolic engine, ultimately has to turn more times to produce the same amount of energy, causing it to demand more fuel in the form of acetyl-CoA. In order to meet this need, your body turns to a particularly rich source of acetyl-CoA: the beta-oxidation of fatty acids. To finally answer the parent's first question, this is where negative feedback that regulates the breakdown of fats is likely to take place. You have an enzyme called acetyl-CoA carboxylase whose activity promotes biosynthesis of fat. As the name suggests, the enzyme adds a carboxylate group to acetyl-CoA to make malonyl-CoA, a compound which is a building block of fatty acids, as well as an inhibitor of enzymes that break down fats. If you run low on fats, acetyl-CoA carboxylase should act to prevent further fat metabolism, and promote the production of more. This will hopefully result in an equilibrium between fat synthesis and fat breakdown. I say hopefully because these tidy feedback loops do not always work as well in practice, which is why we have metabolic disorders in the first place.

      To answer the parent's second question, genetic modifications that correctly integrate into the host genome can generally be expected to be permanent, and spread through dividing cells. Of course, in the lab, you can add genes into an embryo of very few cells, and expect that as an adult, virtually every cell will have the genes, and even expect that the genes will be passed on to offspring. To add genes to a developed organism however involves infecting cells with a vector (usually a modified virus) that carries the genes. It is unlikely that all cells will be infected, and that all infected cells will properly integrate the foreign genes into the genome, and extremely unlikely that the genes would infect germ-line cells and be passed on. The most likely outcome would be a mosaic individual, of whose cells only some contain the foreign genes.

      --
      "FDA staff reviewers expressed concern about the number of patients who were left out of the study because they died."
    2. Re:How to stop? by Dr_Barnowl · · Score: 2, Informative

      You might even be able to administer this as a temporary treatment.

      When viruses divide in cells they hijack your own cellular machinery to do it, by using the same programming mechanism - the production of RNA which causes the synthesis of proteins. If you engineered a virus to produce the glycoxylate shunt RNA complexes, it would produce the shunts in cells it infected. Eventually the virus would run it's course and be eliminated by the immune system. The shunts would persist for some time but eventually go out of commission as their proteins wore out. This could be long enough to lose a whole mess of fat, without permanent side effects.

      If you could tailor it specifically to infect adipocytes, the viral destruction of the cells would have a double effect - fat tissue is one of the regulators of your appetite, which is why those of us who were a bit chubby in childhood have more problems with willpower than those who were stringbeans - we have a billion hungry little mouth/blobs screaming "feed me". Remove a significant population of those cells and you are looking at a long term decrease in appetite.

  12. MMmmm by commodoresloat · · Score: 3, Funny

    Have you tasted penguin? It's fucking delicious. Almost as good as bald eagle.

  13. Re:Fat - CO2? by Ibag · · Score: 4, Informative

    Why do people think that CO2 = bad? There is a natural carbon cycle. CO2 goes into the air, plants breath it in and breath out O2 while turning the carbon into sugar. Animals eat the plants (and other animals) and use the bonds in molecules containing carbon as a storage for energy. As they use the energy, the carbon goes back into the atmosphere. When things are in relative equilibrium, everything is fine.

    The problem with fossil fuels is that there used to be a lot more carbon in the atmosphere, which was absorbed by plants which died and took the carbon with them. When we burn fossil fuels, we are re-releasing this carbon into the atmosphere, changing the balance of things. Except for deforestation and burning of fossil fuels, most other CO2 related activities don't actually change the overall amount of carbon in play. There is no need to be alarmist about this.

  14. The purpose of Fat by MrMista_B · · Score: 5, Insightful

    The purpost of fat is to ensure an organism survives when there is not enough food, and in worst case, during famine.

    During most of the history of the human species, famine has been inevitable and greatly lethal.

    Those humans who can best gain the most fat in the shortest amount of time, are most likely to survive - they are superior than the naturally thin people who are the first to die during famine.

    'Curing' people of the ability to gain fat would be severely detremental to the species ability to survive as a whole, outside of specific cases as stated in the article, such as disease or specific genetic conditions.

    1. Re:The purpose of Fat by tacarat · · Score: 3, Insightful

      Didn't we just have a discussion about how beer goggles being the only way some people get to breed? Bad eyesight does the same thing, but without the hangover later.

      --
      "Common sense will be the death of us all"
  15. Feh. by bobdotorg · · Score: 2, Funny

    Wake me up when they figure out how to make them exhale beer.

    I could go for a cold MausBraü about now.

    --
    __ Someday, but not this morning, I'll finally learn to use the preview button.
  16. Re:Is Carbon Sequestration.. by bunratty · · Score: 4, Informative

    The problem with cars running on gasoline is that the carbon in the carbon dioxide they emit used to be stored deep underground. Once it is emitted into the atmosphere as carbon dioxide, about half of it will remain for hundreds of years, thus increasing the concentration of carbon dioxide in the atmosphere.

    This is as opposed to the carbon in the carbon dioxide you exhale, which came from plants. The plants got the carbon from carbon dioxide in the atmosphere. Thus, exhaling carbon dioxide does not cause a increase in the concentration of carbon dioxide in the atmosphere.

    The carbon cycle... learn it, live it, love it!

    --
    What a fool believes, he sees, no wise man has the power to reason away.
  17. Horror movies by bryan1945 · · Score: 2, Interesting

    Once some screenwriter or movie company gets a hold of this story/idea, we are in for a slew of new, badly thought out horror movies. Something like the "Resident Evil" trilogy crossed with mummies. Wonderful.

    --
    Vote monkeys into Congress. They are cheaper and more trustworthy.
  18. That's a lot of CO2! by sco08y · · Score: 2, Interesting

    Using random values from the web, CO2 is 1.9769 g/L, and human body fat is 900.7 g/L. So the fat is going to expand about 500 times before it gets out of the body.

    With Olestra, people were shocked, shocked, that you'd get runny shits if a fatty substance passed through your body undigested. My prediction: if this takes off, life will imitate art.

  19. Not news. by lindseyp · · Score: 2, Insightful

    Scientists just figured this out?

    I eat a varied and balanced diet which does include a portion of fat.
    I am not putting on weight.

    When I cycle to work, where does the carbon dioxide that I exhale come from?

    --
    j'ai découvert une démonstration vraiment admirable (de ce théorème général) que cette si
  20. Re:Fat - CO2? by Slur · · Score: 4, Insightful

    Back when there was significantly more CO2 in the atmosphere different forms of life predominated, and we have evolved during the relatively oxygen-rich period which followed the lengthy period of sequestration of CO2 in trees and underground petroleum.

    The CO2 we have been increasingly releasing for the last century and a half is not counterbalanced at all because the number of woody trees which absorb CO2 is being significantly cut back at the same time.

    The combination of these factors causes more heat energy to remain in the atmosphere, which means more kinetic energy. Thus we should see an increase in extreme weather, plus an increase in the amount of heat flowing to the polar regions.

    As CO2 and heat increase there will be a corresponding increase in the amount of gaseous H2O in the atmosphere, which is also a heat-trapping molecule. Thus we should expect to see an increase in the number of hurricanes and large-scale storms.

    What is most feared is a runaway greenhouse effect, in which there simply isn't enough re-uptake of CO2 to counterbalance the domino effect, thus heat and kinetic energy keep going up and up. Ocean levels will most certainly rise, and at an increasing rate, which will lead to the increasing loss of coastal regions, large-scale loss of property, displacement of millions of people throughout the world, and various related crises.

    Certainly no one needs to be alarmist, but it is clear that we need to find some solution to regain a reasonable balance, and to do what we can right now. And the most effective thing we can do to slow this trend is alter our behavior and encourage others to do the same.

    --
    -- thinkyhead software and media
  21. Except that fat is not the problem... by Anonymous Coward · · Score: 4, Interesting

    The human body is in essence a fat-burning machine. It is made to burn fat, and fat is its most efficient, most safest form of energy. As a coincidence it can also handle pure sugars and carbs (which break down to sugars) by secreting insulin into the bloodstream when carbs/sugars are ingested. When insulin enters the bloodstream, two things happen: Firstly, the body's lipolysis stops (the breaking-down of fat), resulting in the body stopping its burning of your fat reserves, and instead starts storing the fat you ingested (ever had a "pasta diet" for a longer while and noticed the effect of it?). Secondly, the insulin (and not the sugar) results in the familiar increased heart activity (and sometimes palpitations) that come from sugar ingestion, which is a contributing factor to reduced cardiac health. Last of all, stressful production of insulin due a diet overly rich in carbs or sugars, as known since long, increases the risk of developing diabetes - simply put, a burned out pancreas.

    Carbs/sugars are the catalysts for storing fat instead of burning it. The problem is solved by reducing your carb/sugar intake, and replacing that energy amount by a fat intake.

  22. Re:So what? by fuzzyfuzzyfungus · · Score: 5, Interesting

    There are, actually, ways of causing the body to break down food without providing ATP(by interfering with oxidative phosphorylation in your mitochondria), instead producing heat, which allows extremely efficient weight loss. 2,4-Dinitrophenol was used back in the '30s for the purpose. Unfortunately, if you get the dose wrong, the hyperthermia will fuck you up quite efficiently. Not recommended.

  23. TEACH? by Philip+K+Dickhead · · Score: 3, Insightful

    Altering the genetic make up of an organism is now a form of teaching? :-)

    Yeah. That'll be the f*cked-up NewSpeak they'll use on the 24-hour news drone, as they splice our children with 'obedience training'.

    --
    "Speaking the Truth in times of universal deceit is a revolutionary act." -- George Orwell
    1. Re:TEACH? by SignalFreq · · Score: 4, Funny

      Exhale fat? Great... now I'll have to worry about someone breathing second hand fat in my face...

  24. Richard Simmons' new DVD by countertrolling · · Score: 2, Funny

    "Panting to the Oldies"

    --
    For justice, we must go to Don Corleone
  25. Mammals convert Fat into CO2 anyway... by EmagGeek · · Score: 4, Informative

    *sigh*

    Lipolysis -> Beta Oxidation -> Acetyl-COA -> TCA Cycle -> NADH/FADH -> ETC -> ATP -> CO2

    It's completely natural and spontaneous in the absence of excess blood sugar.

  26. Eating less? by phorm · · Score: 2, Insightful

    we're going to wind up making food a lot more expensive and therefor eating less.

    Uh, no. More likely those that are lower on the income scale will end up less able to afford proper nutritional foods, while those on the upper end continue to overconsume. This of course will leads to a greater divide, as nutrition is often one of the biggest bases for physical and intellectual development...

    1. Re:Eating less? by __aarzwb9394 · · Score: 4, Insightful
      I'd say lack of proper nutrition among the poorest westerners is not primarily due to lack of money.

      It is due to very few people knowing how to cook healthy food for themselves.

      Certainly in Britain home cooking is a hobby for the "effete middle classes", not the "authentic, salt-of-the-earth real people".

      No one has a clue how to cook, and as far as I know no one learns cooking in school any more. I certainly didn't.

  27. Re:So what? by reverseengineer · · Score: 2, Insightful

    Quite true, and one of the things that I'm worried about with the pathway described. Cellular respiration is tied to thermoregulation, and by introducing a pathway which metabolically does nothing for your cells (like the glyoxylate shunt seems to in mammals), you introduce the risk of overheating.

    --
    "FDA staff reviewers expressed concern about the number of patients who were left out of the study because they died."
  28. So now we get: by Hurricane78 · · Score: 2, Insightful

    - Tons of CO released into the athmosphere.
    - People learning *nothing*.
    - Sugar and other too short carbohydrates without any other vital substances still being the no. 1 unhealthy stuff.
    - Very likely other bad side-effects of the bacteria genes.

    And all so we all can eat tons of fat.

    Wow, what a... uum... great... deal!

    I know something better to make people "exhale" the saturated fat* *and* the sugar:
    Make them vomit vigorously, as soon as an overdose of saturated fats and short carbohydrates enters their body, without the vital substances and fibers to cope with it.
    Or even better, add detector cells to the tongue.

    And then watch their eating habits change all by themselves. :)

    ___
    * Because fat all by itself is a good thing. You just should not eat a whole pound of it. ^^

    --
    Any sufficiently advanced intelligence is indistinguishable from stupidity.
  29. Window gunk by flyingfsck · · Score: 2, Funny

    Oh man, imagine all the condensate on the furniture, computer screens and keyboards, windows and the like. Fortunately a typical geek lair doesn't have windows.

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!
  30. Re:Not true at all. by sumdumass · · Score: 2, Interesting

    Yawn.. And in the middle of your analysis you have forgotten or totally missed the important parts, the why. Farm subsidies originally started after WWI as a way to combat the loss of farms due to falling cotton prices. This had a problem because demand drastically shrank after the war and as European countries started rebuilding, they started locking out imports in favor of domestic products. The government originally purchased excess crops at a minimum price with the expectation of being able to resell it later. This threw the market for a loop because farmers started switching to cotton for a guaranteed price making it impossible for the government to get our from under the excess. The added a few other crops to the mix because shortages were being found. This wasn't because of political support or anything of the sorts, it was because if the ability to grow cotton at the time was diminished by farms going under on a mass scale, it would have wrecked the economy (which ultimately happens by the same forces). You have to remember, there was no domestic alternative to cotton at the time and farming was labor intensive which is why the unemployment numbers were so high during the dust bowl and great depreciation.

    After WWII, we sent a lot of food overseas and had to increase production in order not to artificially raise prices at home. Subsidies were once again used to increase production. Then as Europe started comming back into it's own, the subsidies turned from promoting farm growth to paying farmers not to produce but to keep the capacity. This turned around in the 70's and 80's drought in one area and flooding in another cause some shortages again. Now the focus is on either not producing crops at all or collecting in order to provide foreign aid. Either way, the idea is to have a reserve or reserve capacity that can't stabilize the food chain in the US.

    All the problems with implementation that you have pointed out were in the implementation, not the motivation. You are essentially missing the forest for the trees.

  31. Re:Rationalizations. by sumdumass · · Score: 2, Insightful

    I find those things to be more excuses and rationalizations than causes. The forest for the trees is that the red states have pushed for an economic system that benefits them at the expense of the rest of the country.

    Oh, so it's you against them and the only reason you care about is what will further your struggle. Well, when you get done tilting at windmills, start looking around.

    Why should the failure of a farm be any more of an act of concern then the failure of a car company? Why should we have a national tariff to protect the production of sugar when we have no such protections against manufacturing of various goods? Isn't the ability to manufacture arguably more important than the ability to save joe farmer? Somewhere along the way, this country made the decision that the joes in the red states are entitled to federal subsidy and protectionism, but, the joe in the northern states are not.

    Because you don't need a car to live where you do need food. And now your lumping tarriffs in with subsidies and the farm program. They aren't the same. But I will tell you what, how about you quit buying food and eating for a month but continue buying non food products. Then when that over, tell me how you liked it (if you can). I will then tell you why.

    I mean seriously, try it. If you don't understand why food is more important then manufacturing cars or computers or TVs, you will afterward.

    Our current economic policy is about red states looking to sell food at the highest prices and buy the goods to make them with at the lowest. It's the same economic game that they have been playing for almost two centuries (those states that have been states that long, at least). Thus we have subsidies and protectionism for agriculture, and free trade on manufactured goods.

    Wow, almost two centuries and you think it is wrong. What makes you so much smarter then the generations of people and politicians who have came before you over a period of almost two hundred years? Your problem seems to be rooted in doing harm to red states, not in the programs itself.

    My argument would be that, if farm subsidies and import protectionism have actually been good for farming, and they have been, since so many of us are fat, then, why not have the same protectionism for manufacturing?

    SO now it's the fat people. Ok, I'm starting to get some insight into how your mind works. I don't believe you are right but now I see.

    Free trade in the USA is a sham. I wrote a giant rant about this here:

    Yep.. But there should be very little free trade when dealing with food. There is no reason for demand to drive the price out of the reach of the poorer citizens. You may think otherwise but you are completely wrong.