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. Last Updated: 07/27/2016

Male Pill On Cards?

NEW YORK -- A slight genetic defect makes male mice sterile without affecting their libido, suggesting a potential target for a male contraceptive, scientists say.

The goal would be to find a drug that mimics the effect of the mutation, scientists from The Salk Institute in La Jolla, California, say in the February issue of the journal Nature Genetics.

They created a strain of mice with the mutation, which hampers a cell's ability to respond to a certain chemical signal; as a result, the mice don't make sperm.