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. More than half of HIV patients experience memory problems and other cognitive impairments as they age, and doctors know little about the underlying causes. New research from Washington University School of Medicine in St. Louis suggests HIV-related cognitive deficits share a common link with Alzheimer's-related dementia: low levels of the protein amyloid beta in the spinal fluid. http://www.physorg.com/news179428658.html Medicine & Health Mon, 07 Dec 2009 17:40:05 EST news179428658 Most heart failure patients who develop kidney failure in the hospital do not recover from it before going home and are at increased risk of either being re-hospitalized or dying within the year, according to a Henry Ford Hospital study. http://www.physorg.com/news177703807.html Medicine & Health Wed, 18 Nov 2009 04:10:02 EST news177703807 A woman who suffers sudden cardiac arrest is significantly less likely than a man to exhibit the decrease in the heart's pumping ability that is widely recognized as a precursor, says a new study in the Nov. 24 Journal of the American College of Cardiology. http://www.physorg.com/news177663733.html Medicine & Health Tue, 17 Nov 2009 07:20:01 EST news177663733 A team of scientists at Cold Spring Harbor Laboratory reports on Thursday their success in solving the molecular structure of a key portion of a cellular receptor implicated in Alzheimer's, Parkinson's, and other serious illnesses. http://www.physorg.com/news177250907.html Chemistry Thu, 12 Nov 2009 12:22:55 EST news177250907 High levels of workplace exposure to Bisphenol-A may increase the risk of reduced sexual function in men, according to a Kaiser Permanente study appearing in the journal Human Reproduction. http://www.physorg.com/news177138050.html Medicine & Health Wed, 11 Nov 2009 05:06:35 EST news177138050 Laser eye surgery to correct vision problems does not appear to be associated with lasting changes to cells lining the inside of the cornea at nine years after the procedure, according to a report in the November issue of Archives of Ophthalmology. http://www.physorg.com/news177009861.html Medicine & Health Mon, 09 Nov 2009 19:00:02 EST news177009861 (PhysOrg.com) -- The inflammatory response following a spinal cord injury appears to be set up to cause extra tissue damage instead of promoting healing, new research suggests. http://www.physorg.com/news175353183.html Medicine & Health Wed, 21 Oct 2009 14:13:29 EST news175353183 Few internists who care for cancer survivors address issues of sexual dysfunction with their patients, according to a study led by Massachusetts General Hospital (MGH) researchers. In their article appearing in a November 2009 cancer survivor supplement to the Journal of General Internal Medicine, now available online, the investigators report that more than half the internists responding to a survey indicated they rarely or never discussed sexual problems with their patients who had survived cancer. http://www.physorg.com/news175348990.html Medicine & Health Wed, 21 Oct 2009 13:04:54 EST news175348990 Small-for-size graft dysfunction (SFSGD) following living-related liver transplantation (LRLT) is characterized by early graft dysfunction (EGD) when the graft-to-recipient body weight ratio (GRBWR) is below 0.8%. However, patients transplanted with GRBWR above 0.8% can develop dysfunction of the graft. http://www.physorg.com/news174907196.html Medicine & Health Fri, 16 Oct 2009 10:30:07 EST news174907196 Getting off the couch could lead to a longer life for kidney disease patients, according to a study appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN). The findings indicate that, as in the general population, exercise has significant health benefits for individuals with kidney dysfunction. http://www.physorg.com/news174245053.html Medicine & Health Thu, 08 Oct 2009 18:40:03 EST news174245053 Genes previously known to be essential to the coordinated, rhythmic electrical activity of cardiac muscle -- a healthy heartbeat -- have now also been found to play a key role in thyroid hormone (TH) biosynthesis, according to Weill Cornell Medical College researchers. http://www.physorg.com/news172671924.html Medicine & Health Sun, 20 Sep 2009 13:26:31 EST news172671924 An innovative drug-delivery system - nanoparticles encapsulating nitric oxide or prescription drugs - shows promise for topical treatment of erectile dysfunction (ED), according to a new study by scientists at Albert Einstein College of Medicine of Yeshiva University. http://www.physorg.com/news172562185.html Nanotechnology Sat, 19 Sep 2009 06:57:39 EST news172562185 A recent study by Scripps Research Institute scientists offers good news for families of children afflicted with the rare genetic disorder, cystinosis. In research that holds out hope for one day developing a potential therapy to treat the fatal disorder, the study shows that the genetic defect in mice can be corrected with stem cell transplantation. http://www.physorg.com/news172412710.html Medicine & Health Thu, 17 Sep 2009 13:26:39 EST news172412710 (PhysOrg.com) -- Many of the genes that regulate insulin also alter the timing of the circadian clock, a new study has found. http://www.physorg.com/news172409914.html Biology Thu, 17 Sep 2009 12:38:57 EST news172409914 A once-daily medication option for treating the most common mouth infection in HIV/AIDS patients has shown to be just as effective and safe as taking an anti-fungal pill five times a day, according to a Henry Ford Hospital study. http://www.physorg.com/news172151728.html Medicine & Health Mon, 14 Sep 2009 13:40:01 EST news172151728 A team of scientists at the University of California, Riverside has found that even second-hand tobacco smoke exposure can result in nonalcoholic fatty liver disease (NAFLD), a common disease and rising cause of chronic liver injury in which fat accumulates in the liver of people who drink little or no alcohol. http://www.physorg.com/news171808160.html Medicine & Health Thu, 10 Sep 2009 13:50:23 EST news171808160 The virus responsible for PML (progressive multifocal leukoencephalopathy), a rare brain disease that typically affects AIDS patients and other individuals with compromised immune systems, has been found to be reactivated in multiple-sclerosis patients being treated with natalizumab (Tysabri). The findings, led by scientists at Beth Israel Deaconess Medical Center (BIDMC), appear in tomorrow's issue of The New England Journal of Medicine (NEJM). http://www.physorg.com/news171738057.html Medicine & Health Wed, 09 Sep 2009 18:20:03 EST news171738057 Among patients with Bell Palsy, a facial paralysis with unknown cause, treatment with corticosteroids is associated with a reduced risk of an unsatisfactory recovery, and treatment with a combination of corticosteroids and antiviral agents may be associated with additional benefit, according to a systematic review and meta-analysis of previously published studies, reported in the September 2 issue of JAMA. http://www.physorg.com/news171047876.html Medicine & Health Tue, 01 Sep 2009 20:20:03 EST news171047876 Sexual impairment is common among men with chronic hepatitis C undergoing antiviral therapy, according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association (AGA) Institute. http://www.physorg.com/news171005964.html Medicine & Health Tue, 01 Sep 2009 06:50:01 EST news171005964 Accumulating evidence suggests that connective tissue growth factor (CCN2) plays a central role in fibrotic conditions in many organ systems. Fibrosis is a scarring condition that is characterized by excessive collagen production that impedes normal cell function and can cause organ dysfunction and failure. A hallmark of fibrosing injury in the liver is the activation of hepatic stellate cells (HSCs) which become highly proliferative, synthesize increased levels of transforming growth factor (TGF)-β and CCN2, and produce excessive amounts of collagen. Previous studies have not investigated the effect of CCN2 antagonism in HSCs of human origin. http://www.physorg.com/news170420882.html Medicine & Health Tue, 25 Aug 2009 13:00:02 EST news170420882 Obese men are at increased risk for erectile dysfunction (ED), likely caused by atherosclerosis-related hypertension and cardiovascular disease, as well as hormonal changes associated with obesity, as described in a timely article published in Obesity and Weight Management. http://www.physorg.com/news170351721.html Medicine & Health Mon, 24 Aug 2009 18:20:01 EST news170351721 A new study published in the August 2009 issue of the Journal of Bone and Joint Surgery (JBJS) finds that two years after anterior cervical neck operations, patients who have arthroplasty (disc replacement) or arthodesis (spine fusion) can be expected to have significant improvement in their headache symptoms. http://www.physorg.com/news168519037.html Medicine & Health Mon, 03 Aug 2009 12:00:02 EST news168519037 New research has uncovered an early disruption in the process of memory formation in older humans who exhibit some early brain changes associated with Alzheimer's disease (AD) but show little or no memory impairment. The work, published by Cell Press in the July 30th issue of the journal Neuron, sheds light on the role of amyloid protein in memory impairment and may lead to development of strategies for predicting and treating cognitive decline in individuals who are at-risk for AD. http://www.physorg.com/news168094743.html Medicine & Health Wed, 29 Jul 2009 14:30:02 EST news168094743 Maternal exposure to nanoparticles of titanium dioxide (TiO2) affects the expression of genes related to the central nervous system in developing mice. Researchers writing in BioMed Central's open access journal Particle and Fibre Toxicology found that mice whose mothers were injected with the nanoparticles while pregnant showed alteration in gene expression related to neurological dysfunction. http://www.physorg.com/news168029907.html Nanotechnology Tue, 28 Jul 2009 19:58:51 EST news168029907 Catastrophic epilepsy - characterized by severe muscle spasms, persistent seizures, mental retardation and sometimes autism - results from a mutation in a single gene, said Baylor College of Medicine researchers in a report that appears in the current issue of the Journal of Neuroscience. http://www.physorg.com/news166206260.html Medicine & Health Tue, 07 Jul 2009 18:00:03 EST news166206260 Malaysia's health authorities have seized over 20,000 dollars worth of coffee mixed with sildenafil, the main ingredient in erectile dysfunction drug Viagra, a report said Sunday. http://www.physorg.com/news166004975.html Medicine & Health Sun, 05 Jul 2009 10:30:02 EST news166004975 Since the 1970s, there has been much debate surrounding the fact that individuals with autism have difficulty in understanding speech in situations where there is background speech or noise. http://www.physorg.com/news165750637.html Medicine & Health Thu, 02 Jul 2009 10:50:56 EST news165750637 Two Indiana University studies conducted among nationally representative samples of adult American men and women show that vibrator use during sexual interactions is common, with use being reported by approximately 53 percent of women and 45 percent of men ages 18 to 60. Not only is vibrator use common, but the two studies also show that vibrator use is associated with more positive sexual function and being more proactive in caring for one's sexual health. http://www.physorg.com/news165488343.html Medicine & Health Mon, 29 Jun 2009 10:20:01 EST news165488343 High cholesterol levels are considered to be a risk factor not only for cardiovascular disease including stroke, but also for the development of Alzheimer's disease. Therefore, many cholesterol lowering drugs, including statins, have been developed in recent years. In addition to the cholesterol reducing effect of statins Amalia Dolga, PhD, of the University of Groningen, The Netherlands, and her co-investigators have demonstrated that statins can protect nerve cells against damage which we know to occur in the brain of Alzheimer's disease patients. The results are published in the June issue of the Journal of Alzheimer's Disease. http://www.physorg.com/news164886164.html Medicine & Health Mon, 22 Jun 2009 10:43:27 EST news164886164 The value and cost-effectiveness of screening for left ventricular (LV) dysfunction remains unclear, particularly since specific, evidence-based treatments are not available for the majority of patients with preserved systolic dysfunction, reports a study in the June issue of the Journal of Cardiac Failure. http://www.physorg.com/news163937418.html Medicine & Health Thu, 11 Jun 2009 11:10:36 EST news163937418