Researchers have come up with yet another candidate for a male contraceptive — this time in the form of a chemical found in certain traditional arthritis remedies.
The team identified molecules that stop sperm from reaching the necessary speed to charge into the egg cell, opening the way for both a new kind of emergency contraceptive and prophylactic that anybody could use.
The target of these molecules is a small gate found throughout the sperm’s tail called Catsper (a combination of cation channel and sperm), which was identified in 2001 by researchers studying male infertility.
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