오늘: 11|어제: 69|전체: 122,249|회원: 8|문서: 1,506|댓글: 322|첨부파일: 949
만키로군 |등록 : 2012.08.24 17:55
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An international team of scientists has discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells, sciencedaily.com reported Monday. Male mammals have accessory sex glands that contribute seminal fluid to semen, but the role of this fluid and the glands that produce it are not well understood. "From the results of our research, we now know that these glands produce large amounts of a protein that has a direct effect on the female," says Gregg Adams, a professor of veterinary biomedical sciences at the Western College of Veterinary Medicine at the University of Saskatchewan, according to the report. The work, which appears in the latest issue of the Proceedings of the National Academy of Sciences, raises intriguing questions about fertility in mammals, including humans, the report said. The team characterized the protein, dubbed ovulation-inducing factor (OIF), that they have found in the semen of all species of mammal they have looked at so far. In the process of discovering its identity, the team compared OIF to thousands of other proteins, including nerve growth factor (NGF) which is found primarily in nerve cells throughout the body, said sciencedaily.com, a news website for topical science articles. | |
출처 : http://www.koreatimes.co.kr/www/news/tech/2012/08/325_118083.html |
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