Health News
Date: May-13-2013
A team of NIH scientists has developed a new tool to identify broadly neutralizing antibodies (bNAbs) capable of preventing infection by the majority of HIV strains found around the globe, an advance that could help speed HIV vaccine research. Scientists have long studied HIV-infected individuals whose blood shows powerful neutralization activity because understanding how HIV bNAbs develop and attack the virus can yield clues for HIV vaccine design...
Date: May-13-2013
An article published recently in Tumor Microenvironment and Therapy - an open access journal by Versita, defines a novel mechanism of tumor hypoxia induced by the longitudinal gradient of residual oxygen along tumor vessels as they transverse the tumor. Growing evidence from experimental studies and clinical trials suggests a fundamental role of hypoxia in solid tumors. The mechanisms leading to hypoxia include the rapid rate of tumor growth, poor tumor perfusion or transiently disrupted tumor blood flow. Now, scientists from the University of Pennsylvania, led by Professor Cameron J...
Date: May-13-2013
Many medical issues affect nerves, from injuries in car accidents and side effects of chemotherapy to glaucoma and multiple sclerosis. The common theme in these scenarios is destruction of nerve axons, the long wires that transmit signals to other parts of the body, allowing movement, sight and sense of touch, among other vital functions. Now, researchers at Washington University School of Medicine in St. Louis have found a way the body can remove injured axons, identifying a potential target for new drugs that could prevent the inappropriate loss of axons and maintain nerve function...
Date: May-13-2013
A new Canadian study shows that operating without interrupting warfarin treatment at the time of cardiac device surgery is safe and markedly reduces the incidence of clinically significant hematomas compared to the current standard of care. The new findings were released at Heart Rhythm 2013, the Heart Rhythm Society's 34th Annual Scientific Sessions, and are published online in The New England Journal of Medicine (NEJM). At least a quarter of patients that require pacemaker or implantable defibrillator surgery are taking warfarin to reduce the risk of a stroke...
Date: May-13-2013
Antibiotics for acute rhinosinusitis (ARS) are prescribed frequently - especially for younger adult patients and in primary care settings - despite recent consensus guidelines that discourage antibiotic use in mild cases, according to a study in the May 2013 issue of Otolaryngology-Head and Neck Surgery. "These variations should be of high relevance to policy makers, patients, and clinicians, with implications for payment for quality," the authors state. The authors set out to identify national variations in using antibiotics to treat ARS...
Date: May-13-2013
A new article available online in the American Journal of Public Health by two Johns Hopkins Bloomberg School of Public Health faculty makes a compelling case that end-of-life care issues need to become an integral part of the public health agenda. Dan Morhaim, MD, and Keshia Pollack, PhD, point out that the low rate of completion of advance directives in the minority population can be identified as another health care disparity. Advance directive documents are free, legally binding and readily available, yet too few Americans have completed one...
Date: May-13-2013
Sensitive people who consume cinnamon-flavored foods, drinks and food supplements may have a higher risk of liver damage, researchers from the University of Mississippi, USA, and King Saud University, Riyadh, Saudi Arabia, report in the Journal of Agriculture and Food Chemistry. Cinnamon is one of the most important flavoring agents in foods and drinks, team leader Ikhlas Khan explained. It is the second most popular spice, next to black pepper, in the United States and Europe. Ceylon cinnamon, also known as "true cinnamon" (cinnamon verum) is very expensive...
Date: May-13-2013
Researchers from the RIKEN Center for Integrative Medical Sciences have identified a gene that when mutated is responsible for a spectrum of disorders affecting the bones and connective tissue. This finding opens new avenues for research into a diagnosis and treatment for these until now incurable diseases. The study is published today in the American Journal of Human Genetics. Spondyloepimetaphyseal dysplasia with joint laxity, type I or SEMD-JL1 is a disorder of the skeleton resulting in short stature and spinal problems starting from birth, and worsening with age...
Date: May-13-2013
New research shows that growing up in areas where air pollution is increased raises the risk of insulin resistance (the prescursor to diabetes) in children. The research is published in Diabetologia, the journal of the European Association for the Study of Diabetes (EASD), and is by Elisabeth Thiering and Joachim Heinrich, Helmholtz Zentrum München, Neuherberg, Germany, and colleagues. Previous studies have identified links between air pollution and other chronic conditions such as atherosclerosis and heart disease...
Date: May-13-2013
Frontiers in Physiology Flexible echolocation behavior of fishing bats during natural hunting situations It has been known for some time that fishing bats use echolocation to detect and classify acoustical cues from insects along and above water surfaces, and also to detect small water-dwelling prey breaking the water surface for a very short time. But comparisons of echolocation behaviour of a single bat species performing prey captures under different conditions remains scarce...