Study Tests Injected Male Contraceptive In Monkeys
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WASHINGTON -- At some time down the road, there may be a new type of nonhormonal contraceptive available to men -- and it&#39;s one that would be injected.
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A contraceptive vaccine for men that temporarily blocks male fertility has come a step closer with a study showing it is possible to inoculate monkeys against their own sperm.
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TUESDAY, May 23 (HealthDay News) -- Success with randy, replicating rabbits suggests that an &quot;artificial penis&quot; made from a patient's own penile cells might someday help men challenged by tough-to-treat impotence.
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[Health India]: London, Nov 14: In a new study, researchers at the University of North Carolina at Chapel Hill rendered monkeys infertile by a vaccine aimed at their sperm.
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It turns out that the new male contraceptive pill under development stops more than sperm. One of the U.K. researchers behind it tells us how it works. In Bodyhack.
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SUNDAY, Dec. 12 (HealthDayNews) -- The day when men can take a pill or rely on an implant to keep them from fathering a child may only be a few years away, experts say.
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Sperm could help explain how diseases like cancer and HIV spread through the body, a study  suggests.
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Washington - The world of male contraception has been limited to condoms and vasectomies. But researchers now point to a new method that shows promise - a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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The world of male contraception has been limited to condoms and vasectomies. But researchers now point to a new method that shows promise &#151; a shot that prompts an immune reaction to a protein produced in the male reproductive system.
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A study in Uganda has found that washing the penis minutes after sex increased the risk of acquiring H.I.V. in uncircumcised men.
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Scientists believe they are a step closer to understanding how to block the transmission of HIV. A US and Swiss team used an experimental drug to protect monkeys from their equivalent of the virus.
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Scientists in Hong Kong and China  have identified for the first time a protein in sperm from  humans and from mice that could be responsible for many  unexplained cases of male infertility.
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Scientists believe that some cases of infertility might be treated by injections of a hormone.
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Male macaque monkeys pay for sex by grooming females, according to a recent study that suggests the primates may treat sex as a commodity. "In primate societies, grooming is the underlying fabric of it all," Dr. Michael Gumert, a primatologist at the Nanyang Technological University in Singapore, said in a telephone interview Saturday.
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Scientists trying to develop a birth-control pill for men have long been thwarted by two major obstacles: the wiliness of sperm and the unwillingness of women to trust their partners with such a weighty responsibility.
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Scientists are reporting that a nasal spray of a key brain hormone cures sleepiness in sleep-deprived monkeys. With no apparent side effects, the hormone might be a promising sleep-replacement drug.
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In response to questions from commenters about a male birth-control pill, we launch a mini-investigation into whether sperm buildup is a bad, bad thing. In Bodyhack.