Re: Maternal diet as a kind of genetic modification

From: randy (cryofan@mylinuxisp.com)
Date: Sun Aug 03 2003 - 06:04:46 MDT

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    On Sun, 3 Aug 2003 00:35:45 +0200, you wrote:

    I agree with this general theory. I also wonder if it does not affect
    IQ. During my travels, I have had contact with a lot of third
    worlders. It always seemed to me that they had low IQs. Perhaps the
    poor maternal diet is why.

    >
    >http://www.cnn.com/2003/HEALTH/08/01/nutrients.reut/index.html
    >
    >In a study that shows more than ever you are what you eat, scientists
    >said on Friday they had changed the coat colors of baby mice simply by
    >altering their mothers' diets.
    >
    >Basically what they show is that by giving vitamins the expression of
    >the agouit gene is turned down. Maternal diet also affects other gene
    >expression, which is interesting. I may have mentioned earlier that
    >maternal choline appears to improve spatial memory in mice.
    >
    >This opens up an interesting issue (and a rhetorical "trick"): is it
    >acceptable for mothers to tailor their diets to help or affect their
    >child? Many of the standard anti-genetic arguments seem to say no, which
    >would imply that mothers should not be allowed to deliberately eat food
    >rich in (say) choline, which makes for a good rhetorical reductio ad
    >absurdum. But if we accept that mothers may eat chocolate (rich in
    >lecithine, which turns into choline) to improve their children but not
    >any genetic interventions, what is the fundamental difference? Is it
    >just gene expression changes that are OK? Again, it seems nature is not
    >obliging us with any other answer than that a lot of effects during
    >early development can affect the child profoundly; what we do with them
    >and how we handle them ethically is up to us. There are no ready-made
    >boundaries.

    -------------
    -Randy



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