суббота, 20 июля 2019 г.

Men Giving Birth? :: Biology Essays Research Papers

Men Giving Birth? A leading British fertility expert, Lord Winston, says it should be possible for a man to carry a baby to term and then deliver it by a Caesarean section. In Winston's view, modern medical technology will soon allow homosexual male couples to bear children, or allow a heterosexual male to carry a child if his wife is unable to for medical reasons. "Male pregnancy would certainly be possible and would be the same as when a woman has an ectopic pregnancy -- outside the uterus -- although to sustain it, you'd have to give the man lots of female hormones," Winston told the Times. He will outline the concept in his new book, The IVF Revolution. IVF stands for in vitro fertilization. Winston acknowledges that there could be a few problems with the technique. Among other things, the man could experience internal bleeding -- and he might grow breasts. "I don't think there would be a rush of people wanting to implement this technology," he said. (1) Presently, researchers are now busy perfecting a reliable birth-control drug for men. A five-year study, conducted by the ANZAC Research Institute in Sydney, involved 55 men using hormonal injections and implants as birth control. None of the men's partners conceived and there were no side effects compared to other trials, which have been terminated due to unforeseen problems. The contraceptive works by inhibiting sperm production through injections of progestin every three months. Since this hormone also reduces the sex drive, testosterone had to be implanted under the men's skin every four months to maintain their libido. After a 12-month period, participants would stop the treatment to recover their fertility. "This is the first time a reversible male contraceptive that will suppress sperm production reliably and reversibly has been fully tested by couples," Professor David Handelsman, the study's director, was quoted by Reuters as saying. Melissa Dear, a spokesperson for the Family Planning Association, told CNN that she thought it was unlikely that the final product would be marketed in the form of an injection. "It's too awkward a method," she said. "This study has brought the reality of the male contraceptive pill one step closer, but we need to look at combining both hormones in a tablet form." She added that although the Family Planning Association welcomed the news, she anticipated that it would be five to 10 years before a male contraceptive was available commercially.

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