In the other, a team found a mutation of the same gene caused sparse, dry and tightly curled hair.
Scientists say the new information will help them search for therapies to treat a variety of different types of hair loss.
New hope for hair loss sufferers
A pair of just-released studies say scientists have identified a genetic basis for two types of hair loss. In the first, men and women start to lose hair because receptors on the surface of follicle cells don't form correctly.
