Trump executive order misstates facts about sex and gender, scientists say
President Trump’s executive order recognizing only two sexes — male and female — includes language that is biologically ...
Hosted on MSN1mon
New insights into Klinefelter syndrome and male infertility
Men with Klinefelter syndrome have an extra X chromosome, meaning their genetic makeup is "47, XXY" instead of the usual "46, XY." They usually lose large amounts of key reproductive cells before ...
Nature1mon
Age >30 years reduces the success of testicular sperm extraction in azoospermic men
About 15% of men with nonobstructive azoospermia have Klinefelter syndrome. The testes of men with the nonmosaic (47,XXY) form of this condition show only rare, focal areas of spermatogenesis ...