Harvard Researchers Discover New Sperm Pathways

04/20/2010 05:12 am ET | Updated May 25, 2011

Two Harvard-affiliated researchers have discovered the function of a unique protein which allows sperm to blast through the tough outer layer of an unfertilized egg and which may be the target of a future 100 percent effective contraceptive.

By measuring the current that flows across the sperm's plasma membrane for the first time, Yuriy V. Kirichok and Betsy Navarro of the Children's Hospital in Boston, found that sperm have a unique ion pathway.

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