Scientists identify gene that may explain hair loss

Balding manHONG KONG (Reuters) – Researchers in Japan have identified a gene that appears to determine cyclical hair loss in mice and believe it may also be responsible for hair loss, or alopecia, in people.

In a report published in the Proceedings of the National Academy of Sciences, the scientists described how they generated a line of mice that were lacking in the Sox21 gene.

"The mice started to lose their fur from postnatal day 11, beginning at the head and progressing toward the tail region of the back," they wrote.

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