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Clue To Male Baldness Discovered

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A biological clue to male baldness has been discovered, raising the prospect of a treatment to stop or even reverse thinning hair.

 

In studies of bald men and laboratory mice, US scientists pinpointed a protein that triggers hair loss.

 

Researchers from the Perelman School of Medicine at the University of Pennsylvania have identified an abnormal amount a protein called Prostaglandin D2 in the bald scalp of men with male pattern baldness, a discovery that may lead directly to new treatments for the most common cause of hair loss in men.

 

baldness-cure.jpg

 

In both human and animal models, researchers found that a prostaglandin known as PGD2 and its derivative, 15-dPGJ2, inhibit hair growth. The PGD2-related inhibition occurred through a receptor called GPR44, which is a promising therapeutic target for androgenetic alopecia in both men and women with hair loss and thinning. The study is published in Science Translational Medicine.

 

Male pattern baldness strikes 8 of 10 men under 70 years old, and causes hair follicles to shrink and produce microscopic hairs, which grow for a shorter duration of time than normal follicles.

 

Researchers took an unbiased approach when scanning for potential biological causes of baldness, looking in scalp tissue from balding and non-bald spots from men with male pattern baldness and then corroborating findings in mouse models.

 

They found that levels of PGD2 were elevated in bald scalp tissue at levels 3 times greater than what was found in comparative haired scalp of men with androgenetic alopecia. When PGD2 was added to cultured hair follicles, PGD2-treated hair was significantly shortly, while PGD2's derivative, 15-dPGJ2, completely inhibited hair growth.

 

Complete hair loss article

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