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New Superbug Weapon to Replace Failing Antibiotics

An anonymous reader writes "Researchers in British Columbia have identified a peptide that can fight infection by boosting the immune system. Because antibiotics are under threat due to an explosion of antibiotic-resistant bacteria, this may be just in time."

18 of 201 comments (clear)

  1. Frosting by CosmeticLobotamy · · Score: 4, Funny

    I won't take it unless it comes with mint frosting.

  2. I hope not by DogDude · · Score: 5, Funny

    I, for one, hope it doesn't work. I have a lot of shotgun shells and canned foods that will go to waste if my prediction of bacteria wiping out the human race doesn't come true.

    --
    I don't respond to AC's.
    1. Re:I hope not by Anonymous Coward · · Score: 5, Funny

      I'm more curious what the shotguns shells would be for myself, who is he planning on shooting?

      The zombies created by the superbug, of course, silly.
  3. Quick. by Original+Replica · · Score: 5, Funny

    Let's inject it into all our livestock.

    --
    We are all just people.
  4. Source? by Piedramente · · Score: 5, Insightful

    Why do I have a hard time trusting a source like "curedeath.com"?

  5. Over-prescribed by SpiffyMarc · · Score: 4, Insightful

    Maybe if we didn't prescribe an antibiotic for everything that can ever go wrong with a person, there wouldn't be so many resistant strains.

    Sniffles? Take an antibiotic.

    1. Re:Over-prescribed by Daniel+Dvorkin · · Score: 5, Insightful

      Actually, stopping when you feel better is a pretty good idea. The bug is gone, and the body will take care of the rest. The more time you expose organisms to antibiotics, the more time they have to adapt to it.

      It doesn't work that way. When you're infected, some of the bacteria have more resistance than others -- resistance is a fairly complicated trait; it's not binary. So if you stop "as soon as you feel better," what this means is that you've killed off just enough of the least resistant bacteria so that you don't notice the symptoms of infection any more; there are still plenty of somewhat-more-but-not-completely resistant bacteria in your body, and you've created a massive selective pressure favoring those strains. Whereas if you finish the prescribed course of antibiotics, you're wiping out all but the very most resistant -- and that's likely to be a fairly small number, which your immune system can indeed deal with on its own, now that most of the bacteria overall are out of they way.

      I hate to bring up such a politically charged analogy, but this is the best way I can think of to explain it: suppose you're planning to invade a country and eliminate all resistance. You have two courses of action available:

      (a) Attack, keep attacking, kill anyone who resists, and even after visible resistance has ceased, keep aggressively patrolling every square foot of the country until well after you're sure that everyone who might oppose your rule is dead.

      (b) Attack, kill off the most visible opponents, ease up until a rebellion starts, kill a few more people until things quiet down, ease up until a rebellion starts, kill a few more people ...

      Which option do you think is likely to be most effective? Conversely, which one do you think is most likely to produce a hardened and pretty much ineradicable resistance? Hint: (b) is pretty much what people who stop taking antibiotics as soon as they feel better are doing.

      Of course, my analogy should only be interpreted in medical terms. Doesn't have anything to do with anything else that's going on in the world. Uh-uh. Not a bit. No sirree.

      --
      The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  6. Immunology by HomelessInLaJolla · · Score: 4, Informative

    This is a representation of some very adept work by researchers at Inimex and some well spent funding by CIHR.

    The human body has seven systems: muscoskeletal, reproductive, skin, cardiopulmonary, nervous, digestive, and immune. Many of the ailments which people experience--cancer, diabetes, neurodegenerative disorders, prion diseases, leukemia, infections--invade tissues of the six other systems but are ultimately traceable as a deficiency in their own immune system. The immune system is trained as the maintenance arm of the body. When cells become cancerous the immune system is trained to find and remove them. When viruses and bacteria enter the body the immune system is trained to kill them. When plaques build up in the body the immune system is trained to remove them. When cells are starving, or asphyxiated, or agitated it is the immune system which is responsible for transmitting the proper signals systemwide and stimulating other tissues to produce the materials necessary to fix the problem.

    The devoted study of immunology, of which the language which cells use to communicate with each other is central, has been pushed aside for many years by the larger, more established, more prestigious research groups both in academia and in the industry. When I worked at Abbott Laboratories, starting in '99, I found that their immunology department had recently been all but terminated in favor of shuffling the money to the devoted disease areas. While treating the diseases as separate from the body has led to some novel treatments (eg. antiangionesis and apoptosis for cancer) it seemed, to me, that a whole boatload of data which pointed to the potential cures available within the body itself were being ignored--not because they lacked scientific merit--but because the social structures within the company (and the industry) were attached to the research paths which were easier for the marketers and PR releases to handle.

    To some extent that's the way things must work. The venture capitalists and investors need to know where their money is going or else they aren't going to contribute. That's a sad state of society, though, when one group's ignorance is stifling another group's innovation.

    The study of immunology has quite a bit of potential for worldwide medicine. ImClone managed to open the popular path with its approach of monoclonal antibodies, though that segment was somewhat sabotaged by the insider trading scandal. Let's hope that companies like Inimex, and hopefully some companies in the US, will begin to devote greater resources to understanding how the body naturally works and working with it. Many of the detrimental side effects of today's pharmaceuticals are directly related to the immune system's response to those molecules being introduced into the body. The industry has really created its own problem of side effects by buckling in to the demands of the financiers and not holding to the strict scientific principles.

    Even though they're in Vancouver I sent a resume.

    --
    the NPG electrode was replaced with carbon blac
  7. Clean = Immune Retardation by PixieDust · · Score: 4, Insightful
    Part of the reason Antibiotics have been overprescribed is in our world of super ultra hygeine concious society, people are killing off all the germs they can everywhere. People sanitize their hands 50 times a day. This is all well and good, and healthy, but it also causes a problem. Without exposure to various germs, bacteria, etc. people's immune systems actually atrophy. So when they get a little bug that a 'normal' immune system could kick without much trouble, theirs can't, or they fraek out because they are ultra health concious, so they go to the Dr. Dr sees what's going on, prescribes an anti-biotic because John Q and Sally public are so afraid to go a few weeks with the sniffles and let it run their course.

    The end result is that a person's immune system no longer has to do it's job, job gets done for it. The immune system becoems weaker, they get sick more, then get more anti-biotics.

    Wash, Rinse, Repeat.

  8. Not FROM a superbug... by posterlogo · · Score: 4, Informative
    The post is very misleading (don't think the poster actually read TFA, surprise surprise). There's no new "Superbug" to replace old antibodies. The new immuno activating peptide was designed in a lab based on rules derived by analysing naturally occuring host peptides that trigger immunomodulatory responses. Superbugs have nothing to do with this. The peptide did not come from a bug, and it does not directly kill bugs either (which is what antibiotics do). This peptide simply stimulates the innate immune response to fight infection. The abstract from the paper is below:

    We show that an innate defense-regulator peptide (IDR-1) was protective in mouse models of infection with important Gram-positive and Gram-negative pathogens, including methicillin-resistant Staphylococcus aureus, vancomycin-resistant Enterococcus and Salmonella enterica serovar Typhimurium. When given from 48 h before to 6 h after infection, the peptide was effective by both local and systemic administration. Because protection by IDR-1 was prevented by in vivo depletion of monocytes and macrophages, but not neutrophils or B- and T-lymphocytes, we conclude that monocytes and macrophages are key effector cells. IDR-1 was not directly antimicrobial: gene and protein expression analysis in human and mouse monocytes and macrophages indicated that IDR-1, acting through mitogen-activated protein kinase and other signaling pathways, enhanced the levels of monocyte chemokines while reducing pro-inflammatory cytokine responses. To our knowledge, an innate defense regulator that counters infection by selective modulation of innate immunity without obvious toxicities has not been reported previously.

  9. Simple fix for this problem by LunaticTippy · · Score: 5, Funny

    We need to develop a new, superstrong antibiotic called Placebocillin. If that doesn't work, we can always try intravenous Cephplacebo.

    --
    Man, you really need that seminar!
  10. Info is from a plagarism site/spam blog by Animats · · Score: 5, Informative

    The article is a link to a spam blog. The original content is in this press release, which was copied without attribution. The original source and contact information were removed, six ads were added, and a false claim of copyright was made.

    The people behind this are Web Doodle LLC of Missoula, MT, run (as of 2002) by Branden Long. They have other similar spam blogs.

  11. Re:Waaa, Doctor Help Me by dgatwood · · Score: 5, Informative

    Actually, there has never ever ever ever been any causal link between antibiotic prescriptions for personal, in-home use and the development of antibiotic-resistant strains of bacteria. Given the number of studies by people trying to scare people away from antibioitics, it is likely that such a link simply does not exist, as it would likely have been found by now if it did.

    Antibiotic resistance develops as a direct result of hospital use of antibiotics. Unfortunately, hospital use usually equates with life-threatening. The reason that resistant strains take hold in hospitals is that you have a higher concentration of sick people breathing the same air, using some of the same shared facilities, etc. with doctors and nurses moving from patient to patient. As much as they try to minimize the spread of illness among patients, it still occurs, and unlike in your home, the people in the hospital are often already sick or in poor health, and are thus more susceptible to bacteria that (barely) survived a round of antibiotics.

    By contrast, letting yourself "wait a few days while you get better" from bacterial infections has been linked to numerous diseases, including several varieties of arthritis, rheumatic fever, Pelvic Inflammatory Disease, and even heart damage. Waiting it out is absolutely the worst thing you can do.

    --

    Check out my sci-fi/humor trilogy at PatriotsBooks.

  12. More snake oil by mrbluze · · Score: 4, Informative

    "We now have a powerful new tool that will allow us to stop infection before it starts -- it's a new concept in treating infection,"

    This is a very speculative and pretty dodgy article. Firstly, it's not a new concept (being healthy is the best tool for stopping infection before it starts, and, secondary to this, immunization, sanitation and quarantine).

    Secondly, drugs already exist which are used in severe sepsis to boost the immune system. These drugs are very dangerous and expensive and when used inappropriately cause as many deaths as they save lives.

    While it is true that antibiotic use is excessive, the situation we have is that the people who are getting the MRSA and VRE and other 'superbug' infections are frequently already immune compromised and, in whole body infection, invariably die without antibiotics - nothing else is proven to work without them.

    Also, it's a peptide. You can't take it as a tablet - it's not going to be on the shelves of your supermarket - and if it is, better off eating a hard boiled egg! If anything, it will be a small scale intravenous drug for use in intensive care units, usually when all else fails, just like all these other 'breakthrough' solutions.

    --
    Do it yourself, because no one else will do it yourself. [beta blockade 10-17 Feb]
  13. Re:Headline missing a keyword by Daniel+Dvorkin · · Score: 4, Interesting

    a massive super bug some day that will kill you before you can treat it

    Except that antibiotic-resistant strains are generally less virulent than the old-fashioned kind. It doesn't mean they can't kill you, of course -- obviously they do kill people, all the time -- but most of their victims are already immunocompromised in some way (the very old, the very young, AIDS patients, chemotherapy patients, etc.) Generating the enzymes necessary for antibiotic resistance, such as penicillinase, represents a pretty significant metabolic load for the cell; every bit of energy it has to spend protecting itself from antibiotics is a bit it doesn't have available to spend on reproduction.

    I'm not trying to downplay the danger of antibiotic-resistant bacteria here, only pointing out that "superbug" is a relative term; just because they're tougher in one way doesn't mean they're tougher in all ways. For bacteria as for every other living thing, fitness is relative to environment.

    --
    The correlation between ignorance of statistics and using "correlation is not causation" as an argument is close to 1.
  14. Re:Waaa, Doctor Help Me by wkk2 · · Score: 5, Insightful

    My mother was a nurse trained in the 40's. Since this was before major antibiotic use, significant training was about sanitation control. No wrist watches (since you might not wash), how to change bed sheets (to minimize airborne dust), and proper washing.

    Now we have keyboards, remote controls, and all kinds of stuff that can't be cleaned. She died from an infection carried by improperly sterilized diagnostic equipment.

    Today, hospital care seems to be more about pushing pills and foregoing the basics so it's no wonder we have resistant bugs.

  15. Boosted Immune system != Good.... by cloudance · · Score: 4, Informative

    As a few other people pointed out, a boosted immune system isn't a good thing. A Healthy immune system is. No, I'm not a bioligist, Doctor, Immunologist, Rheumatologist, or Endocrinologist... but I have one of each in my contact list (Ok... so the Biologist is a friend who gave it up for Software engineering.... but I do have the others).

    A heightened immune system causes Psoriasis, Psoriatic Arthritis, Osteo Arthritis, Rheumatoid arthritis, Allergies, Graves Syndrome, Crohn's Disease, and a whole host of things that range from unpleasant (allergies and Osteo Arthritis) to seriously painful (Psoriatic Arthritis) to life threatening (Crohn's and very severe psoriasis). I live it every day. It's ranging from my major discomfort with the current 5000+ pollen count on my business trip to Atlanta (where I'm sitting now) where Zyrtec is barely effective, to my Psoriasis (which gets worse when my immune system gets excitied like it is with my allergies pumped up) that leaves me with large raw bloody areas that pass for skin. Yeah... I know... you really wanted to read that while you ate dinner... welcome to my life.

    Trust me... DON'T overactivate your immune system.... live well, take antibiotics only when you HAVE to and for as long as you have to, and enjoy a normal and healthy immune system.

  16. Re:Headline missing a keyword by Anonymous Coward · · Score: 4, Informative

    Um, this is wrong. Production of beta-lactamases (i.e., penicillinase) is just one means of antibiotic resistance. There are lots of strategies that bacteria use to evade antibiotics without expending energy. One example is gram positive bacteria that use modified peptidoglycan.

    Also, methicillin-resistant staph aureus doesn't infect only immunocompromised hosts. Neither do vancomycin-resistant enterobacteria. Pseudomonas aeruginosa is a major, major pathogen that affects immunocompetent people and still manages to be resistant to a lot of antibiotics.

    Pathogenic bacteria are bad. Pathogenic bacteria that are antibiotic resistant are worse.