The researchers identified stem cells within the skin's fatty layer and showed that molecular signals from these cells were necessary to spur hair growth in mice. Which I disagree with because that means they are animal testing and I think that is inhuman.
Men that are bald still have live stem cells in follicle roots but the stem cells lose the ability to jump-start hair regeneration. Scientists have known that these follicle stem cells need signals from within the skin to grow hair, but the source of those signals has been unclear."If we can get these fat cells in the skin to talk to the dormant stem cells at the base of hair follicles, we might be able to get hair to grow again," said Valerie Horsley, assistant professor of molecular, cellular and developmental biology and senior author of the paper
Horsley's team observed that when hair dies, the layer of fat in the scalp that comprises most of the skin's thickness shrinks. When hair growth begins, the fat layer gets bigger, thats called called adipogenesis. They found that a type of stem cell involved in creation of new fat cells was needed for hair regeneration in mice.
This discovery is great and all but I am offended that they could have killed these animals just to fix a guy's baldness. Boo hoo for him. Let him be bald and save the animals.
http://www.sciencedaily.com/releases/2011/09/110901134641.htm
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