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Humans could regrow body parts

Discussion in 'Current Events' started by obeygiant, Mar 16, 2010.

  1. macrumors 68040

    obeygiant

    #1
    Humans could regrow body parts like some amphibians

    link

    This could be good news for John Bobbitt. Otherwise its fascinating news. :)
     
  2. macrumors 68020

    niuniu

    #2
    Really must be an exciting discovery to make. Wouldn't you love to be born 200 years from now and see what the state of surgery is like.
     
  3. macrumors Penryn

    rdowns

    #3
    Eff John Bobbit? Maybe we can re-grow spines for our politicians.
     
  4. macrumors 6502a

    Scooterman1

    #4
    Fascinating!
     
  5. macrumors 6502a

    paddy

    #5
    If it wasn't in the bible it isn't true!
     
  6. macrumors 603

    appleguy123

    #6
    Is there anything stopping these scientists from regrowing tissue deteriorated by age? For example if the heart of an old person is wearing, they could just remove small segments of it and grow a young heart, or would the regrown heart be old too?
     
  7. macrumors G4

    #7
    Bit worrying about the tumour possibilities, but as long as they can turn it off again it should be a massive step forward. Could they even regrow functioning nerves, eyeballs, maybe even clone a new heart to replace a damaged one with the patient's own tissue.

    I remember reading somewhere that Dolly the sheep died of old age at the same age the donor DNA would have been. Even if that's true however and our lives remain with a finite lifespan, the time we have should be more enjoyable as a result of these treatments.
     
  8. macrumors 6502a

    #8
    This is great research with tremendous potential. I hope to read more about this in the coming years. It's going to be a long time before research or even testing on humans will occur. I'm really interested to see how they manage to control cancerous growths with the rapid proliferation of new cells.
     
  9. macrumors 6502a

    nick1516

    #9
    This is great, I have a feeling that my generation will have a longer lifespan because of all the gene therapy research going on.
     
  10. macrumors 601

    Don't panic

    #10
    very cool story
    it is a follow up from this
    http://www.timesonline.co.uk/tol/news/uk/article559955.ece


    this is the actual article, for those interested
    http://www.pnas.org/content/early/2...html?sid=8ec0e69d-cfe7-43c4-a3a2-ae2d03abf6c8

    note that so far the only tested ability of the original mice strain and this p21- strain is to close holes poked into its ear, which normal mice cannot do, there is no actual regeneration of limbs, for example.

    another issue is that lack of p21 activity is associated to increased DNA damage and is one of the key aspects of many tumors (and to some forms of autoimmune diseases).
    However if this can be tightly controlled locally (and there is no reason to think it won't in the near future), it could be a really important starting point for future treatment of severe wounds. Growing organs is still way off, though.

    my guess is that it facilitates the re-activation of stem cells.
    I wonder if deer antler replacement is driven by shutting down p21 in some cell populations
     
  11. macrumors 6502

    #11
    This reminds me of The Tough Man in the Tender Chicken.
    Bones: "If I were going to combine human and animal DNA with an eye towards creating a super soldier, I'd go with a flatworm."
    "Why?"
    "Self-regeneration, obviously."
     
  12. macrumors 68020

    kernkraft

    #12
    Growing body parts? How about losing some?
     

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  13. macrumors 6502

    #13
    If the heart was damaged (e.g., from a heart attack), then they could probably regrow it in this fashion and get a healthier heart as a result. However, the heart would still be old. A lot of it has to do with telomeres. These are little pieces of DNA at the ends of chromosomes that deteriorate a little bit every time a cell divides. This deterioration is thought to be a big part of aging.

    IOW, yes this could replace damaged organs. If you want to replace old organs with young ones, there is much more promise in using tissue culture and stem cells, where they just grow you a new heart in vitro and just transplant it in when it's properly cooked.

    I personally am looking forward to my future bionic organs. Just call me robopooky.
     

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