麻省理工學院技術評論報告：美國國家兒童健康與人類發展研究所（NICHD）的研究人員領導的一個研究小組，計劃明年四月開始一個男性避孕膠的臨床試驗。據研究小組介紹，每天將這種快乾的荷爾蒙凝膠塗在上臂和肩部，透過摩擦，可以抑制精子生成三天左右的時間。具體來說，稱為nestorone的黃體激素能夠降低睪固酮濃度以阻止精子生成，而合成睪固酮能夠維持身體賀爾蒙平衡卻又不會讓睪丸生產精子。
原文標題：Hormonal Male Contraceptive to Enter Clinical TrialA team led by researchers at the National Institute of Child Health and Human Development (NICHD) plans to start a clinical trial of a male contraceptive gel next April, MIT Technology Review reports. The quick-drying, hormonal gel is rubbed on the upper arms and shoulders daily and can suppress sperm levels for about three days, according to the team. Specifically, a synthetic version of the hormone progestin, called nestorone, reduces testosterone levels to prevent normal sperm production, while a synthetic testosterone serves to maintain the body’s proper hormone balance without inducing the testes to make sperm.
