http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Sex. It's what got you into pregnancy, but is it also the pathway to getting you out? http://medicalxpress.com/news/2013-03-medical-myth-sex-induceslabour.html Health Thu, 07 Mar 2013 08:30:01 EST news281866450 A new report suggests that the concentration of one human cytokine, interleukin 7 (IL-7), in the semen of HIV-1-infected men may be a key determinant of the efficiency of HIV-1 transmission to an uninfected female partner. In their study published February 7 in the Open Access journal PLOS Pathogens, a research group from the Eunice Kennedy-Shriver National Institute of Child Health and Human Development (NICHD) led by Leonid Margolis report that the increased IL-7 concentration in semen facilitates HIV transmission to cervical tissue ex vivo. http://medicalxpress.com/news/2013-02-hiv-exploits-human-cytokine-semen.html HIV & AIDS Thu, 07 Feb 2013 17:00:03 EST news279466658 Men's sperm quality may be significantly affected by their levels of physical activity, according to a new study led by researchers at Harvard School of Public Health (HSPH). They found that healthy young men who were sedentary, as measured by hours of TV viewing, had lower sperm counts than those who were the most physically active. http://medicalxpress.com/news/2013-02-tv-viewing-habits-significantly-affect.html Health Mon, 04 Feb 2013 18:30:01 EST news279198452 The first comparative study on the evolution of sperm quality in young Spanish men over ten years, headed by researchers at the University of Murcia, reveals that spermatozoid concentration in men between 18 and 23 years in the regions of Murcia and Almeria has dropped by an annual average of 2%. http://medicalxpress.com/news/2013-01-semen-quality-young-men-southeast.html Health Fri, 18 Jan 2013 08:57:16 EST news277721823 New research shows that the concentration of sperm in men's semen has been in steady decline between 1989 and 2005 in France. In addition, there has been a decrease in the number of normally formed sperm. The study is published online today (Wednesday) in Europe's leading reproductive medicine journal Human Reproduction. http://medicalxpress.com/news/2012-12-semen-quality-fell-french-men.html Medical research Tue, 04 Dec 2012 19:00:01 EST news273863489 A paper published 15 August 2012 in Biology of Reproduction's Papers-in-Press reveals that eating 75 grams of walnuts a day improves the vitality, motility, and morphology of sperm in healthy men aged 21 to 35. http://medicalxpress.com/news/2012-08-walnuts-day-fertility-specialist.html Obstetrics & gynaecology Wed, 15 Aug 2012 15:00:02 EST news264260759 Researchers from Boston University School of Medicine (BUSM) and Fenway Health have found that highly active antiretroviral therapy (HAART) does not completely suppress HIV in the semen of sexually active HIV-infected men who have sex with men (MSM). The findings, which currently appear on-line in AIDS, could indicate a potential transmission risk in MSM, who are highly susceptible to HIV infection. http://medicalxpress.com/news/2012-03-hiv-infected-men-hiv-haart.html HIV & AIDS Tue, 27 Mar 2012 10:46:52 EST news252064004 Men's diets, in particular the amount and type of different fats they eat, could be associated with their semen quality according to the results of a study published online in Europe's leading reproductive medicine journal Human Reproduction today. http://medicalxpress.com/news/2012-03-fatty-diets-semen-quality.html Health Tue, 13 Mar 2012 20:00:01 EST news250875714 Scientists at the Gladstone Institutes have discovered new protein fragments in semen that enhance the ability of HIV, the virus that causes AIDS, to infect new cells -- a discovery that one day could help curb the global spread of this deadly pathogen. http://medicalxpress.com/news/2011-12-scientists-human-proteins-fuel-hivaids.html HIV & AIDS Wed, 14 Dec 2011 13:00:19 EST news243090006 A man with a low IQ confesses to a gruesome crime. Confession in hand, the police send his blood to a lab to confirm that his blood type matches the semen found at the scene. It does not. The forensic examiner testifies later that one blood type can change to another with disintegration. This is untrue. The newspaper reports the story, including the time the man says the murder took place. Two witnesses tell the police they saw the woman alive after that. The police send them home, saying they “must have seen a ghost.” After 16 years in prison, the falsely convicted man is exonerated by DNA evidence. http://medicalxpress.com/news/2011-11-false-errors-evidence.html Psychology & Psychiatry Wed, 16 Nov 2011 08:02:32 EST news240652935 (Medical Xpress) -- A pair of studies presented today at the 67th Annual Meeting of the American Society for Reproductive Medicine (ASRM) show a link between dietary patterns and semen parameters in men: in short, better nutrition makes for better semen. http://medicalxpress.com/news/2011-10-nutrition-sperm.html Health Tue, 18 Oct 2011 17:21:13 EST news238177245 Canada's health agency on Tuesday warned would-be parents not to purchase "fresh" semen online, saying it may be tainted with infectious diseases. http://medicalxpress.com/news/2011-08-canada-fresh-semen-online.html Other Tue, 30 Aug 2011 11:32:40 EST news233922743 Vitamin D is important for optimal reproductive function in both animals and humans. It has long been known that serum vitamin D level is important for reproductive function in various animals, but now researchers from the University of Copenhagen and Copenhagen University Hospital have shown that this relationship can also be demonstrated in humans. http://medicalxpress.com/news/2011-05-vitamin-d-sperm-cells.html Health Wed, 25 May 2011 10:41:38 EST news225538879 A new, promising marker for diagnosing prostate cancer has been discovered by Swedish researchers with the aid of a unique method developed at the Department of Immunology, Genetics and Pathology. The study, being published this week in the journal Proceedings of the National Academy of Sciences, PNAS, can lead to more reliable diagnoses and fewer unnecessary operations. http://medicalxpress.com/news/2011-05-marker-reliable-prostate-cancer.html Cancer Mon, 09 May 2011 15:00:38 EST news224161418