http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. A new, large-scale clinical trial is examining whether antiretroviral medications normally used to treat HIV infection can also prevent HIV infection in women when applied as a vaginal gel or taken as oral tablets once daily. http://www.physorg.com/news172318077.html Medicine & Health Wed, 16 Sep 2009 11:08:29 EST news172318077 University of Utah scientists developed a new kind of "molecular condom" to protect women from AIDS in Africa and other impoverished areas. Before sex, women would insert a vaginal gel that turns semisolid in the presence of semen, trapping AIDS virus particles in a microscopic mesh so they can't infect vaginal cells. http://www.physorg.com/news169104062.html Medicine & Health Mon, 10 Aug 2009 06:40:02 EST news169104062 The aloe vera plant has a long history of healing power. Its ability to heal burns and cuts and soothe pain has been documented as far back as the 10th century. Legend has it that Cleopatra used aloe vera to keep her skin soft. The modern use of aloe vera was first recognized the 1930s to heal radiation burns. Since then, it has been a common ingredient in ointments that heal sunburn, minor cuts, skin irritation, and many other ailments. http://www.physorg.com/news167057415.html Medicine & Health Fri, 17 Jul 2009 14:10:02 EST news167057415 Scientists here have determined that combining bed bugs' own chemical signals with a common insect control agent makes that treatment more effective at killing the bugs. http://www.physorg.com/news163165086.html Biology Tue, 02 Jun 2009 12:38:39 EST news163165086 Molecular biologists, including the cool dudes from CSI, use gel electrophoresis to separate DNA fragments from each other in order to analyze the DNA. A team of researchers under the leadership of Vici winner Serge Lemay, has now shown for the first time how the gel influences the movement of the DNA. The researchers drove a single DNA molecule through a nanopore in order to analyze the forces on the DNA. The results of the research were published on March 29 in Nature Physics. http://www.physorg.com/news161519158.html Nanotechnology Thu, 14 May 2009 11:26:30 EST news161519158 (AP) -- A little testosterone might be good for adults, but it can cause serious harm to children, federal health officials warned Thursday. The Food and Drug Administration said adults using prescription testosterone gel must be extra careful not to get any of it on children to avoid causing serious side effects. http://www.physorg.com/news160932510.html Medicine & Health Thu, 07 May 2009 16:28:50 EST news160932510 (PhysOrg.com) -- We cannot live without it; yet too much of it causes damage: oxygen is a critical component of many physiological and pathological processes in living cells. Oxygen deficiency in tissues is thus related to tumor growth, retinal damage from diabetes, and rheumatoid arthritis. It is thus important to determine the oxygen content of cells and tissues, which is a challenge to scientists. http://www.physorg.com/news157373939.html Nanotechnology Fri, 27 Mar 2009 12:00:45 EST news157373939 Relying on principles similar to those that cause Jell-O to congeal into that familiar, wiggly treat, University of Michigan researchers are devising a new method of detecting nitric oxide in exhaled breath. http://www.physorg.com/news157018879.html Chemistry Mon, 23 Mar 2009 09:22:48 EST news157018879 The dogged search for a vaginal gel to thwart the AIDS virus earned some good news on Wednesday as scientists announced that a cheap, commonly-used compound shielded monkeys from a lethal cousin of HIV. http://www.physorg.com/news155394282.html Medicine & Health Wed, 04 Mar 2009 13:07:40 EST news155394282 An investigational vaginal gel intended to prevent HIV infection in women has demonstrated encouraging signs of success in a clinical trial conducted in Africa and the United States. Findings of the recently concluded study, funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the NIH, were presented today at the Conference on Retroviruses and Opportunistic Infections in Montreal. http://www.physorg.com/news153399286.html Medicine & Health Mon, 09 Feb 2009 10:55:57 EST news153399286 Singapore's Institute of Bioengineering and Nanotechnology (IBN), which celebrates its fifth anniversary this year, has invented a unique user-friendly gel that can liquefy on demand, with the potential to revolutionize three-dimensional (3D) cell culture for medical research. http://www.physorg.com/news141835077.html Nanotechnology Sun, 28 Sep 2008 15:37:57 EST news141835077 (PhysOrg.com) -- Large or small, machine parts only move when controlled by an external impulse. Biological systems, on the other hand, are capable of autonomous movements that continuously follow their own rhythms and spatial patterns. For example, intestinal peristalsis -a circular, constricting, unidirectional muscular contraction -depends in part on an inherent muscular rhythm. http://www.physorg.com/news138263308.html Chemistry Mon, 18 Aug 2008 07:28:28 EST news138263308 The HIV drug tenofovir may prevent AIDS transmission when applied rectally as a gel, according to results from a macaque study published in PLoS Medicine. http://www.physorg.com/news137128781.html Medicine & Health Tue, 05 Aug 2008 04:19:41 EST news137128781 The simple application of a pain-relieving gel may reduce the breast discomfort some women experience during mammography exams, according to the results of a clinical trial published in the online edition of Radiology. http://www.physorg.com/news135928297.html Medicine & Health Tue, 22 Jul 2008 06:51:37 EST news135928297 In battle with an epidemic that has outpaced nearly all efforts to contain it, researchers are turning to strategies centered on the same antiretroviral (ARV) drugs that have been used successfully to treat HIV in hopes they will be as effective a stronghold for preventing the virus. http://www.physorg.com/news134820152.html Medicine & Health Wed, 09 Jul 2008 11:02:32 EST news134820152