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Image of the Day
Hormonal Male Contraceptive to Enter Clinical Trial
Jef Akst | Dec 21, 2017
The gel, which men rub on their upper bodies daily, delivers synthetic progestin to block the testes from producing normal levels of sperm.
Study: Male Contraceptive Prevents Pregnancy in Monkeys
Joshua A. Krisch | Feb 8, 2017
Researchers injected a non-hormonal hydrogel contraceptive into 16 male rhesus monkeys, finding that it prevented pregnancy for an entire breeding season.
Inhibiting Sperm Protein Causes Infertility
Karen Zusi | Oct 5, 2015
Two drugs targeting a protein in sperm cause reversible infertility in male mice, providing new hope for a male contraceptive.
Sperm on Lockdown
Abby Olena | Dec 4, 2013
In a proof-of-principle study, genetic deletion of two genes renders male mice infertile by preventing sperm transport through the vas deferens.
Hope for Male Contraception
Sabrina Richards | Aug 16, 2012
A small molecule that inhibits a protein important for chromatin organization can cause reversible sterility in male mice.
Loss of Microtubule Regulator Blocks Sperm Maturation
Sabrina Richards | May 24, 2012
New research suggests that controlling cytoskeletal dynamics in sperm accessory cells may help regulate male fertility.