Denise Grady in The New York Times:
Scientists have found a new way to grow hair, one that they say may lead to better treatments for baldness. So far, the technique has been tested only in mice, but it has managed to grow hairs on human skin grafted onto the animals. If the research pans out, the scientists say, it could produce a treatment for hair loss that would be more effective and useful to more people than current remedies like drugs or hair transplants. Present methods are not much help to women, but a treatment based on the new technique could be, the researchers reported Monday in Proceedings of the National Academy of Sciences.
…The senior author of the study is Angela Christiano, a hair geneticist and dermatology professor at Columbia University Medical Center in New York, who has become known for her creative approach to research. Dr. Christiano’s interest in the science of hair was inspired in part by her own experience early in her career with a type of hair loss called alopecia areata. She has a luxuriant amount of hair in the front of her head, but periodically develops bald spots in the back. The condition runs in her family. In the mid-1990s, she sent photographs of her bald spots to researchers in Pakistan, hoping her plight would persuade them to collaborate with her on a study of a rare genetic disorder there that left people with no hair at all on their heads or bodies. Her strategy worked, and the joint effort identified the gene. In subsequent studies, Dr. Christiano and other colleagues identified multiple genes that play an important role in alopecia areata.