A "Gene's Kiss" Turns On Puberty

Scientists say they have found the genetic switch that turns on puberty. It all starts with a molecule called kisspeptin, which wakes up the reproductive hormones from their childhood hibernation. The University of Pittsburgh team believe kisspeptin switches on a recently discovered puberty gene, called GPR54. The findings could help treat puberty disorders, they told Proceedings of the National Academy of Sciences.

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