http://www.physorg.com/health-news/hiv-aids/ en-us PhysOrg.com provides the latest news on HIV, Aids, HIV research, Aids Research, Aids Studies and HIV medicine. (PhysOrg.com) -- UCLA AIDS Institute researchers have for the first time demonstrated that human blood stem cells can be engineered to target and kill HIV-infected cells. http://www.physorg.com/news179483720.html Medicine & Health - HIV & AIDS Tue, 08 Dec 2009 08:35:54 EST news179483720 (PhysOrg.com) -- Two studies published this month in the Journal of Clinical Investigation provide a significant advance in understanding how some species of monkeys such as sooty mangabeys and African green monkeys avoid AIDS when infected with SIV, the simian equivalent of HIV. http://www.physorg.com/news179085831.html Medicine & Health - HIV & AIDS Thu, 03 Dec 2009 18:05:48 EST news179085831 (PhysOrg.com) -- The genesis of one the planet's most lethal viruses, HIV, has been caught on tape. New imaging experiments show individual HIV genomes -- strands of RNA - docking on the inner membrane of an infected cell wall as they are ensconced by HIV structural proteins. http://www.physorg.com/news177696439.html Medicine & Health - HIV & AIDS Tue, 17 Nov 2009 16:07:49 EST news177696439 The recent failure of an HIV vaccine was probably caused by the immune system reacting to the virus 'shell' used to transmit the therapy around the body, according to research published today in the Proceedings of the National Academy of Sciences. http://www.physorg.com/news177608117.html Medicine & Health - HIV & AIDS Mon, 16 Nov 2009 15:37:19 EST news177608117 Supporting Los Alamos National Laboratory's role in the international Center for HIV/AIDS Vaccine Immunology (CHAVI) consortium, researchers are using the Roadrunner supercomputer to analyze vast quantities of genetic sequences from HIV infected people in the hope of zeroing in on possible vaccine target areas. http://www.physorg.com/news175872209.html Medicine & Health - HIV & AIDS Tue, 27 Oct 2009 14:40:01 EST news175872209 Sperm, and not just the fluid it bathes in, can transmit HIV to macrophages, T cells, and dendritic cells (DCs), report a team led by Ana Ceballos at the University of Buenos Aires in Argentina. By infecting DCs, which carry the virus and potently pass it to T cells, sperm may play a leading role in spreading HIV. The article appears in the November 23, 2009 issue of the Journal of Experimental Medicine. http://www.physorg.com/news175777938.html Medicine & Health - HIV & AIDS Mon, 26 Oct 2009 12:12:45 EST news175777938 (AP) -- Fresh results from the world's first successful test of an experimental AIDS vaccine confirm that it is only marginally effective and suggest that its protection against HIV infection may wane over time. http://www.physorg.com/news175235922.html Medicine & Health - HIV & AIDS Tue, 20 Oct 2009 05:40:13 EST news175235922 (PhysOrg.com) -- In an encouraging development, an investigational vaccine regimen has been shown to be well-tolerated and to have a modest effect in preventing HIV infection in a clinical trial involving more than 16,000 adult participants in Thailand. Following a final analysis of the trial data, the Surgeon General of the U.S. Army, the trial sponsor, announced today that the prime-boost investigational vaccine regimen was safe and 31 percent effective in preventing HIV infection. http://www.physorg.com/news172992753.html Medicine & Health - HIV & AIDS Thu, 24 Sep 2009 06:33:16 EST news172992753 A study of how HIV mutates in response to immune system pressure by Emory Vaccine Center researchers shows that the virus can take several escape routes, not one preferred route. http://www.physorg.com/news172561791.html Medicine & Health - HIV & AIDS Sat, 19 Sep 2009 06:51:22 EST news172561791 Researchers at and associated with the International AIDS Vaccine Initiative (IAVI), at The Scripps Research Institute, and at the biotechnology companies Theraclone Sciences and Monogram Biosciences have discovered two powerful new antibodies to HIV that reveal what may be an Achilles heel on the virus. They published their work in Science this week. http://www.physorg.com/news171207257.html Medicine & Health - HIV & AIDS Thu, 03 Sep 2009 14:35:02 EST news171207257 (AP) -- Circumcision, which has helped prevent AIDS among heterosexual men in Africa, doesn't help protect gay men from the virus, according to the largest U.S. study to look at the question. http://www.physorg.com/news170440393.html Medicine & Health - HIV & AIDS Tue, 25 Aug 2009 17:33:45 EST news170440393 (PhysOrg.com) -- With the help of the human immunodeficiency virus (HIV) and molecular engineering, researchers have designed synthetic protein-like mimics convincing enough to interrupt unwanted biological conversations between cells. http://www.physorg.com/news169743181.html Medicine & Health - HIV & AIDS Mon, 17 Aug 2009 17:00:01 EST news169743181 Researchers at the Yerkes National Primate Research Center, Emory University, believe conventional vaccine strategies should not be the only avenue explored in the development of an effective AIDS vaccine. Based on studying simian immunodeficiency viruses (SIVs) in African nonhuman primates, they propose an additional new approach to the AIDS vaccine research agenda in a commentary featured in the August issue of Nature Medicine. Their recommendations outline specific research priorities and describe how each may lead to a novel "out of the box" approach for developing an AIDS vaccine. http://www.physorg.com/news168863801.html Medicine & Health - HIV & AIDS Fri, 07 Aug 2009 11:38:03 EST news168863801 The structure of an entire HIV genome has been decoded for the first time by researchers at the University of North Carolina at Chapel Hill. The results have widespread implications for understanding the strategies that viruses, like the one that causes AIDS, use to infect humans. http://www.physorg.com/news168697337.html Medicine & Health - HIV & AIDS Wed, 05 Aug 2009 13:23:14 EST news168697337 (PhysOrg.com) -- Scientists have discovered that gorillas are a source of human immunodeficiency virus type 1 (HIV-1), having diagnosed a Cameroonian woman living in Paris with a strain that is different to those previously found to cause HIV-1 infections. This is the first human infection of HIV that is clearly linked to gorillas and not chimpanzees. http://www.physorg.com/news168440350.html Medicine & Health - HIV & AIDS Sun, 02 Aug 2009 15:00:02 EST news168440350 New research helps explain why infection with herpes simplex virus-2 (HSV-2), which causes genital herpes, increases the risk for HIV infection even after successful treatment heals the genital skin sores and breaks that often result from HSV-2. http://www.physorg.com/news168440108.html Medicine & Health - HIV & AIDS Sun, 02 Aug 2009 15:00:01 EST news168440108 Following the disbandment of the STEP trial to test the efficacy of the Merck HIV-1 vaccine candidate in 2007, the leading explanation for why the vaccine was ineffective - and may have even increased susceptibility to acquiring the virus - centered on the hypothesis that high levels of baseline Ad5-specific neutralizing antibodies may have increased HIV-1 acquisition among the study subjects who received the vaccine by increasing Ad5-specific CD4+ T-cells that were susceptible to HIV-1 infection. http://www.physorg.com/news167328837.html Medicine & Health - HIV & AIDS Mon, 20 Jul 2009 21:20:03 EST news167328837 A team of researchers from The Wistar Institute and the University of Pennsylvania reports new evidence refuting a popular hypothesis about the highly publicized failure in 2007 of the Merck STEP HIV vaccine study that cast doubt on the feasibility of HIV-1 vaccines. The findings were published on-line July 20 in Nature Medicine. http://www.physorg.com/news167316214.html Medicine & Health - HIV & AIDS Mon, 20 Jul 2009 14:30:01 EST news167316214 One of the continuing mysteries of the HIV/AIDS epidemic is why women usually develop lower viral levels than men following acute HIV-1 infection but progress faster to AIDS than men with similar viral loads. Now a research team based at the Ragon Institute of Massachusetts General Hospital (MGH), MIT and Harvard has found that a receptor molecule involved in the first-line recognition of HIV-1 responds to the virus differently in women, leading to subsequent differences in chronic T cell activation, a known predictor of disease progression. Their paper, which will be published in an upcoming issue of Nature Medicine, is receiving early online release. http://www.physorg.com/news166711709.html Medicine & Health - HIV & AIDS Mon, 13 Jul 2009 13:48:55 EST news166711709 Scientists at Albert Einstein College of Medicine of Yeshiva University have devised a laboratory test for predicting whether microbicides against HIV are safe for human use. The researchers have also discovered why several supposedly "safe" microbicides made women more susceptible to HIV infection. The study appears today in the online version of the Journal of Infectious Disease. http://www.physorg.com/news166441689.html Medicine & Health - HIV & AIDS Fri, 10 Jul 2009 10:48:40 EST news166441689 Scientists at the Gladstone Institutes of Virology and Immunology (GIVI) have found another clue that may lead to eradication of HIV from infected patients who have been on antiretroviral therapy. A real cure for HIV has been elusive because the virus can "hide" in a latent form in resting CD4-T cells. By understanding this "latency" effect, researchers can identify ways to reactivate the virus and enable complete clearance by current or future therapies. http://www.physorg.com/news165216810.html Medicine & Health - HIV & AIDS Fri, 26 Jun 2009 06:42:40 EST news165216810 Scientists at the European Molecular Biology Laboratory (EMBL) and the University Clinic Heidelberg, Germany, have produced a three-dimensional reconstruction of HIV (Human Immunodeficiency Virus), which shows the structure of the immature form of the virus at unprecedented detail. http://www.physorg.com/news164974015.html Medicine & Health - HIV & AIDS Tue, 23 Jun 2009 11:07:17 EST news164974015 Researchers from the newly-established VGTI Florida and the University of Montreal have uncovered a possible method for eradicating HIV infection in the human body. The researchers have also revealed new information which demonstrates how HIV persists in the body - even in patients receiving drug treatments - and how the virus continues to replicate itself in individuals undergoing treatment. The research findings will be published in the online version of the journal Nature Medicine on June 21 and will be featured in an upcoming print edition of the journal. http://www.physorg.com/news164809422.html Medicine & Health - HIV & AIDS Sun, 21 Jun 2009 17:30:01 EST news164809422 A discovery by a team of Canadian and American researchers could provide new ways to fight HIV-AIDS. According to a new study published in Nature Medicine, HIV-AIDS could be treated through a combination of targeted chemotherapy and current Highly Active Retroviral (HAART) treatments. This radical new therapy would make it possible to destroy both the viruses circulating in the body as well as those playing hide-and-seek in immune system cells. http://www.physorg.com/news164809253.html Medicine & Health - HIV & AIDS Sun, 21 Jun 2009 13:21:22 EST news164809253 Focusing HIV drug development on immune cells called macrophages instead of traditionally targeted T cells could bring us closer to eradicating the disease, according to new research from University of Florida and five other institutions. http://www.physorg.com/news162670146.html Medicine & Health - HIV & AIDS Wed, 27 May 2009 19:21:49 EST news162670146 Those travelling abroad should take seriously advice to pack their condoms and keep their needles to themselves: research published today in the open access journal Retrovirology shows that tourists, travellers and migrants from Greece, Portugal, Serbia and Spain actively export HIV-1 subtype B to other European nations. http://www.physorg.com/news162033302.html Medicine & Health - HIV & AIDS Wed, 20 May 2009 10:15:48 EST news162033302 Researchers from Weill Cornell Medical College have published results showing that a new contraceptive device may also effectively block the transmission of the HIV virus. Findings show that the device prevents infection by the HIV virus in laboratory testing. The promising results are published in the most recent issue of the journal AIDS. http://www.physorg.com/news161968483.html Medicine & Health - HIV & AIDS Tue, 19 May 2009 16:15:29 EST news161968483 A chemical found in green tea helps inhibit sexual transmission of the virus which causes AIDS, said a study Tuesday that recommends using the compound in vaginal creams to supplement antiretrovirals. http://www.physorg.com/news161963111.html Medicine & Health - HIV & AIDS Tue, 19 May 2009 14:49:33 EST news161963111 A research team may have broken the stubborn impasse that has frustrated the invention of an effective HIV vaccine, by using an approach that bypasses the usual path followed by vaccine developers. By using gene transfer technology that produces molecules that block infection, the scientists protected monkeys from infection by a virus closely related to HIV -the simian immunodeficiency virus, or SIV -that causes AIDS in rhesus monkeys. http://www.physorg.com/news161786789.html Medicine & Health - HIV & AIDS Sun, 17 May 2009 13:47:15 EST news161786789 The ancestors of the simian immunodeficiency viruses (SIVs) that jumped from chimpanzees and monkeys, and ignited the HIV/AIDS pandemic in humans, have been dated to just a few centuries ago. These ages are substantially younger than previous estimates, according to a new study from The University of Arizona in Tucson, published May 1st in the open-access journal PLoS Computational Biology. http://www.physorg.com/news160385953.html Medicine & Health - HIV & AIDS Fri, 01 May 2009 08:39:49 EST news160385953