While birth control pills have been around for more than six decades for women, male contraception options have been pretty much limited to condoms and vasectomies.
Washington State University researchers say they have discovered a gene in the testes that could solve this glaring disparity. Disabling the gene in mice changed sperm shape and movement, causing infertility in male mice, the study found.
"The study identifies this gene for the first time as being expressed only in testicular tissue, nowhere else in the body, and it's expressed by multiple mammalian species,""When this gene is inactivated or inhibited in males, they make sperm that cannot fertilize an egg, and that's a prime target for male contraceptive development."
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