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Graying Hairlibfemme ( 12/27/2004, 11:40:17 )Hair turns gray because your hair follicles run out of stem cells. This may make harvesting stem cells from hair follicles impractical for the group of people most likely to need them: the elderly.In fact, isn't that what growing old is...a dying off of the body's stem cells? If the elderly had a lot of stem cells they wouldn't be elderly.I think there is no getting around it. At some point stem cells are going to have to be "made" for individuals. That means taking the nucleus out of an adult skin cell from the elderly patient and put into the cytoplasm of a younger cell that has potential to differentiate. That's usually an egg. ![]() This Message is being posted for educational purposes, as well as for comment and criticism, by the visitors to the HumanCloning.org Foundation website (www.HumanCloning.org ). Disclaimer: Information provided on this web site is for educatonal purposes only. It is not a substitute for, nor can it replace advice from your own physician. HumanCloning.org™ Established December 11, 2002. |
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