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, according to research published in the Sept. 2 issue of the journal Cell.
"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.
Men with male pattern baldness still have stem cells in follicle roots but these 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.
Here's Some information I learned about Yevo and Baldness
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 expands in a process called adipogenesis. Researchers found that a type of stem cell involved in creation of new fat cells -- adipose precursor cells -- was required for hair regeneration in mice. They also found these cells produce molecules called PDGF (platelet derived growth factors), which are necessary to produce hair growth.
Horsley's lab is trying to identify other signals produced by adipose precursor stem cells that may play a role in regulating hair growth. She also wants to know whether these same signals are required for human hair growth. Other authors from Yale are lead author Eric Festa, Jackie Fretz, Ryan Berry, Barbara Schmidt, Matthew Rodeheffer and Mark Horowitz.
Many people are concerned about their health and if you're one of them, you'd be following the most recent news about nutrition. Nowadays, with many people with weight issues and suffering from various health related to poor eating habits, any news about nutrition is worth reading. There are always fresh news about foods, nutrition and new diets that supposedly promote good health. More and more weight loss experts are endorsing nutritionally balanced diets like
instead of special diets formulated specifically for removing excess weight and you want learn about these. You'll read about the latest discoveries on foods and nutrition nearly every day. Nutrition researchers are always finding something new about certain foods or debunking some previously considered truths about them.