http://phys.org/health-news/hiv-aids/ en-us Phys.Org provides the latest news on HIV, Aids, HIV research, Aids Research, Aids Studies and HIV medicine. A certain gene in some monkeys can help boost vaccine protection against simian immunodeficiency virus (SIV), a trait that could help researchers develop better AIDS vaccines for humans, suggested a study out Wednesday. http://phys.org/news223738128.html Medicine & Health - HIV & AIDS Wed, 04 May 2011 14:29:17 EST news223738128 Thanks to a certain protein, rhesus monkeys are resistant to HIV. Known as TRIM5, the protein prevents the HI virus from multiplying once it has entered the cell. Researchers from the universities of Geneva and Zurich have now discovered the protein's mechanism, as they report in Nature. This also opens up new prospects for fighting HIV in humans. http://phys.org/news222523456.html Medicine & Health - HIV & AIDS Wed, 20 Apr 2011 13:04:32 EST news222523456 (PhysOrg.com) -- An international study headed by a UC Davis scientist describes how a component of a potential HIV vaccine opens like a flower, undergoing one of the most dramatic protein rearrangements yet observed in nature. The finding could reveal new targets for vaccines to prevent HIV infection and AIDS. A paper describing the work was published online this week in the journal Proceedings of the National Academy of Sciences. http://phys.org/news220775356.html Medicine & Health - HIV & AIDS Thu, 31 Mar 2011 08:20:01 EST news220775356 Biochemist Leor Weinberger and colleagues at the University of California, San Diego and UCLA have proposed a fundamentally new intervention for the HIV/AIDS epidemic based on engineered, virus-like particles that could subdue HIV infection within individual patients and spread to high-risk populations that are difficult for public health workers to reach. http://phys.org/news219601908.html Medicine & Health - HIV & AIDS Thu, 17 Mar 2011 17:32:09 EST news219601908 Elevated levels of p21, a protein best known as a cancer fighter, may be involved in the ability of a few individuals to control HIV infection with their immune system alone. In a paper in the April edition of the Journal of Clinical Investigation, researchers from the Massachusetts General Hospital (MGH) Infectious Disease Division and the Ragon Institute of MGH, MIT and Harvard report that CD4 T cells from HIV controllers, while capable of being infected, can effectively suppress key aspects of the viral life cycle, an ability that may be associated with increased expression of the p21 protein. Preliminary results of this study were presented at the October 2010 Infectious Diseases Society of America meeting. http://phys.org/news219325232.html Medicine & Health - HIV & AIDS Mon, 14 Mar 2011 12:41:18 EST news219325232 An AIDS vaccine tested in people, but found to be ineffective, influenced the genetic makeup of the virus that slipped past. The findings suggest new ideas for developing HIV vaccines. http://phys.org/news218216362.html Medicine & Health - HIV & AIDS Tue, 01 Mar 2011 15:40:22 EST news218216362 In a bold new approach ultimately aimed at trying to cure AIDS, scientists used genetic engineering in six patients to develop blood cells that are resistant to HIV, the virus that causes the disease. http://phys.org/news218133293.html Medicine & Health - HIV & AIDS Mon, 28 Feb 2011 17:10:01 EST news218133293 New research enhances the current knowledge of how human immunodeficiency virus type-1 (HIV-1), which causes AIDS, controls the cell cycle of cells that it infects. The new findings may shed light on how the virus reactivates after entering a dormant state, called latency. http://phys.org/news217854064.html Medicine & Health - HIV & AIDS Fri, 25 Feb 2011 11:01:39 EST news217854064 In the early years of the AIDS epidemic, being infected with the virus that causes the disease was considered a virtual death sentence. But with the development of antiretroviral therapy, many with HIV are now living much longer. In fact, it is estimated that by 2015, about half of all HIV-positive individuals will be older than 50. http://phys.org/news215335929.html Medicine & Health - HIV & AIDS Thu, 27 Jan 2011 07:32:29 EST news215335929 A team of scientists at The Scripps Research Institute and the University of Virginia has determined the structure of the protein package that delivers the genetic material of the human immunodeficiency virus (HIV) to human cells. http://phys.org/news214665704.html Medicine & Health - HIV & AIDS Wed, 19 Jan 2011 13:22:13 EST news214665704 New findings are bringing scientists closer to an effective HIV vaccine. Researchers from Seattle Biomedical Research Institute (Seattle BioMed), Vanderbilt University and the Ragon Institute of MGH, MIT and Harvard report findings showing new evidence about broadly-reactive neutralizing antibodies, which block HIV infection. Details are published January 13 in the open-access journal PLoS Pathogens. http://phys.org/news214220583.html Medicine & Health - HIV & AIDS Fri, 14 Jan 2011 09:43:15 EST news214220583 A very unusual blood transplant appears to have cured an American man living in Berlin of infection with the AIDS virus, but doctors say the approach is not practical for wide use. The man, who is in his 40s, had a blood stem cell transplant in 2007 to treat leukemia. His donor not only was a good blood match but also had a gene mutation that confers natural resistance to HIV. http://phys.org/news211608600.html Medicine & Health - HIV & AIDS Wed, 15 Dec 2010 04:10:31 EST news211608600 It is estimated that 38 million people worldwide are currently infected with HIV and that 4.1 million more are added each year. For scientists to design treatment therapies that are effective over the long-term it is essential to learn more about how the virus mutates and develops resistance to medications. http://phys.org/news211212809.html Medicine & Health - HIV & AIDS Fri, 10 Dec 2010 14:14:16 EST news211212809 A daily dose of an oral antiretroviral drug, currently approved to treat HIV infection, reduced the risk of acquiring HIV infection by 43.8 percent among men who have sex with men. The findings, a major advance in HIV prevention research, come from a large international clinical trial published online Nov. 23 by the New England Journal of Medicine. The study, titled "Chemoprophylaxis for HIV Prevention in Men," found even higher rates of effectiveness, up to 72.8 percent, among those participants who adhered most closely to the daily drug regimen. http://phys.org/news209724328.html Medicine & Health - HIV & AIDS Tue, 23 Nov 2010 08:45:43 EST news209724328 Natural killer cells are major weapons in the body's immune system. They keep the body healthy by knocking off tumors and cells infected with viruses, bombarding them with tiny lethal pellets. But natural killer cells are powerless against HIV, a fact that has bedeviled science for over 20 years. http://phys.org/news209384677.html Medicine & Health - HIV & AIDS Fri, 19 Nov 2010 10:24:55 EST news209384677 Researchers have been stymied for years over the fact that people infected with the AIDS virus do indeed produce antibodies in response to the pathogen – antibodies that turn out to be ineffective in blocking infection. http://phys.org/news209308284.html Medicine & Health - HIV & AIDS Thu, 18 Nov 2010 13:11:54 EST news209308284 Tiny variants in a protein that alerts the immune system to the presence of infection may underlie the rare ability of some individuals to control HIV infection without the need for medications. In a report that will appear in Science and is receiving early online release, an international research team led by investigators from the Ragon Institute of Massachusetts General Hospital (MGH), MIT and Harvard and from the Broad Institute of MIT and Harvard describe finding that differences in five amino acids in a protein called HLA-B are associated with whether or not HIV-infected individuals can control viral levels with their immune system only. http://phys.org/news208099357.html Medicine & Health - HIV & AIDS Thu, 04 Nov 2010 14:22:58 EST news208099357 - Researchers at Oregon Health &Science University may have uncovered a new weapon for combating HIV as it is passed from mother to newborn child. The research, which was led by researchers at OHSU's Oregon National Primate Research Center, will be published in the October 3rd online edition of the journal Nature Medicine. http://phys.org/news205330943.html Medicine & Health - HIV & AIDS Sun, 03 Oct 2010 13:22:33 EST news205330943 New discoveries about the immune defenses of rare HIV patients who produce antibodies that prevent infection suggest a novel direction for designing new vaccines. Researchers at Rockefeller University and colleagues have now made two fundamental discoveries about the so called broadly neutralizing anti-HIV antibodies, which effectively keep the virus at bay. By detailing the molecular workings of a proven immune response, the researchers hope their work will ultimately enable them to similarly arm those who are not equipped with this exceptional immunological firepower. The findings are reported in the Sept. 30 issue of the journal Nature. http://phys.org/news204985317.html Medicine & Health - HIV & AIDS Wed, 29 Sep 2010 13:22:17 EST news204985317 One strategy for designing an HIV vaccine involves identifying the key viral surface structures, snipping them off and developing a method to present these fragments to the immune system. When some parts of the surface of HIV are removed, they change shape such that antibodies no longer recognize and bind to them. A research team led by investigators at the Vaccine Research Center at NIAID has developed a strategy to overcome this. http://phys.org/news204821035.html Medicine & Health - HIV & AIDS Mon, 27 Sep 2010 15:44:16 EST news204821035 A vaginal gel failed to protect women against the AIDS virus, doctors said on Monday, reporting on a major clinical trial that enrolled more than 9,000 women. http://phys.org/news204178749.html Medicine & Health - HIV & AIDS Mon, 20 Sep 2010 05:19:28 EST news204178749 Rutgers researchers have discovered how HIV-1, the virus that causes AIDS, resists AZT, a drug widely used to treat AIDS. http://phys.org/news204121332.html Medicine & Health - HIV & AIDS Sun, 19 Sep 2010 13:22:25 EST news204121332 An ancestor of HIV that infects monkeys is thousands of years older than previously thought, suggesting that HIV, which causes AIDS, is not likely to stop killing humans anytime soon, finds a study by University of Arizona and Tulane University researchers. http://phys.org/news203865547.html Medicine & Health - HIV & AIDS Thu, 16 Sep 2010 14:19:58 EST news203865547 Dendritic cells are the grand sentinels of the immune system, standing guard 24/7 to detect foreign invaders such as viruses and bacteria, and bring news of the invasion to other immune cells to marshal an attack. These sentinels, however, nearly always fail to respond adequately to HIV, the virus causing AIDS. Now a team of scientists at NYU Langone Medical Center has discovered a sensor in dendritic cells that recognizes HIV, spurring a more potent immune response by the sentinels to the virus. They report their findings in the September 9, 2010, issue of Nature. http://phys.org/news203171144.html Medicine & Health - HIV & AIDS Wed, 08 Sep 2010 13:26:04 EST news203171144 Researchers at the University of Minnesota Academic Health Center have identified two drugs that, when combined, may serve as an effective treatment for HIV. http://phys.org/news201535410.html Medicine & Health - HIV & AIDS Fri, 20 Aug 2010 15:03:48 EST news201535410 The virus that causes AIDS may undergo changes in the genital tract that make HIV-1 in semen different than what it is in the blood, according to a study led by researchers from the University of North Carolina at Chapel Hill. http://phys.org/news201428736.html Medicine & Health - HIV & AIDS Thu, 19 Aug 2010 17:00:04 EST news201428736 Monkeys repeatedly immunized with a particular form the HIV-1 envelope glycoprotein generated antibodies capable of neutralizing diverse strains of HIV-1, according to a paper published online in the Journal of Experimental Medicine on August 2. http://phys.org/news199972030.html Medicine & Health - HIV & AIDS Mon, 02 Aug 2010 12:47:22 EST news199972030 Researchers are reporting a breakthrough against AIDS. A vaginal gel containing an AIDS drug cut in half a woman's chances of getting HIV from an infected partner. http://phys.org/news198765851.html Medicine & Health - HIV & AIDS Mon, 19 Jul 2010 13:45:02 EST news198765851 Scientists have discovered two potent human antibodies that can stop more than 90 percent of known global HIV strains from infecting human cells in the laboratory, and have demonstrated how one of these disease-fighting proteins accomplishes this feat. According to the scientists, these antibodies could be used to design improved HIV vaccines, or could be further developed to prevent or treat HIV infection. Moreover, the method used to find these antibodies could be applied to isolate therapeutic antibodies for other infectious diseases as well. http://phys.org/news197816024.html Medicine & Health - HIV & AIDS Thu, 08 Jul 2010 14:00:17 EST news197816024 Lab work on mice has opened up a novel way of closing a gateway to the AIDS virus, according to a study published on Friday. http://phys.org/news197303523.html Medicine & Health - HIV & AIDS Fri, 02 Jul 2010 15:32:26 EST news197303523