Stem cells switch off and on, sometimes dividing to produce progeny cells and sometimes resting. But scientists don’t fully understand what causes the cells to toggle between active and quiet states (…)
New research in Elaine Fuchs’ Laboratory of Mammalian Cell Biology and Development focused on stem cells in the hair follicle to determine what switches them on. The researchers found cells produced by the stem cells, progeny known at Transit-Amplifying Cells or TACs, emit a signal that tells quiet hair follicle stem cells to become active.
“Many types of mammalian stem cells produce TACs, which act as an intermediate between
Image via Wikipedia
For some the stress of every day life can prove to be too much actually causing their hair to fall out. But now there’s an experimental treatment in the Bay area that may help your hair grow back regardless of why it fell out.
Russell Gibson is hoping it will work for him. Under the hot Florida sun each day he wears a black knit stocking cap pulled down low over his ears and his eyebrows. He spends hours working outside because he owns “Momma Gibbs Top Notch Boat Detail.” Seeing see him dressed in a t-shirt and
Baldness is an undesirable condition that afflicts both men and women, many of which have family members with significant hair loss. According to Health Day News, a new study of stem cells in mice shows promise for future treatments for people who battle hair loss.
The study was conducted on the fatty skin layers of mice by researchers at Yale University. Specifically, adipose precursor cells were found to spur new hair growth in mice, according to Health Day News.
Stem cells are present in hair follicles, which help generate hair growth. Health Day News explains that these cells are still present
Image via Wikipedia
Given the amount of angst over male pattern balding, surprisingly little is known about its cause at the cellular level. In a new study, published in the Journal of Clinical Investigation, a team led by George Cotsarelis, MD, chair of the Department of Dermatology at the University of Pennsylvania School of Medicine, has found that stem cells play an unexpected role in explaining what happens in bald scalp.
Using cell samples from men undergoing hair transplants, the team compared follicles from bald scalp and non-bald scalp, and found that bald areas had the same number of stem cells
Bioengineered organs may redefine transplants for humans someday, and even allow damaged organs to regenerate.
Northwestern University researchers are in the beginning stages of bioengineering tissues and entire organs from stem cells of adult rats and mice, said Dr. Jenny Zhang. Zhang directs the Microsurgical Core within the Comprehensive Transplant Center at Feinberg.
Once engineered, Zhang said her team will be able to test the functionality of such organs as transplants in the rodents. For now, Zhang and fellow researchers are using a biodegradable scaffold, a kind-of-skeleton of an organ with all living cells removed, to test the model.
By developing a