Two new woodlizard species have been uncovered from poorly explored areas of the Peruvian jungles. The males have beautiful body colouration with a distinctive green pattern before a dark brown and black background. It is assumed that the two species share the same territory, with only a slight difference in altitude ranges, which makes their biological divergence intriguing from an evolutionary point of view. The study was published in the open access journal Zookeys.
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Doses of medicine 100,000 times smaller than the diameter of a human hair prevent the tissue damage associated with atherosclerosis and other chronic diseases in mice. As part of a National Institutes of Health-sponsored project led by Zahi Fayad, PhD, of the Icahn School of Medicine at Mount Sinai, researchers found that these nanomedicines are able to home specifically to damaged tissue to repair it. This study was published online this week in Proceedings of the National Academy of Sciences.
For the first time, a study has compared water quality trends in forested streams across the country that are largely undisturbed by land use or land cover changes.
The study, which draws on decades' worth of data from reference streams in six U.S. states and Puerto Rico, underscores the value of long-term data in understanding the patterns and causes of water quality changes in streams and rivers. It is published in the current issue of the journal Environmental Research Letters.
BEER-SHEVA, Israel, March 20, 2013 -- Ben-Gurion University of the Negev (BGU) researchers, in collaboration with Teva Pharmaceutical Industries Ltd., have developed a promising drug candidate to treat psoriasis. The finding was reported in a new paper published in Chemistry and Biology.
Post-menopausal women, who often suffer from joint pain, could find some long-term relief by taking estrogen-only medication, according to a new study based on the Women's Health Initiative (WHI) that was released online today by the journal, Menopause.
Scientists have cracked a 35-year-old mystery about the workings of the natural motors that are serving as models for development of a futuristic genre of synthetic nanomotors that pump therapeutic DNA, RNA or drugs into individual diseased cells. Their report revealing the innermost mechanisms of these nanomotors in a bacteria-killing virus — and a new way to move DNA through cells — is being published online today in the journal ACS Nano.
CLEVELAND, Ohio (March 20, 2013)—Estrogen therapy can help keep joint pain at bay after menopause for women who have had a hysterectomy. Joint pain was modestly, but significantly, lower in women who took estrogen alone than in women who took placebo in the Women's Health Initiative (WHI) trial. The findings were published online today in Menopause, the journal of The North American Menopause Society.
CHICAGO – Smoking has been linked to prolonged healing time and greater risk for complications in orthopaedic and other surgeries, according to a new study presented today at the 2013 Annual Meeting of the American Academy of Orthopaedic Surgeons (AAOS).
Researchers reviewed records of all total hip replacement (THR, or total hip arthroplasty) patients between 2007 and 2009 to identify patients who used tobacco products at the time of surgery, or who smoked regularly prior to surgery.
The cause of unexplained pain among metal-on-metal hip implant patients is more likely to be tissue damage than wear of the implant, Hospital for Special Surgery researchers have found. The study, performed by Dr. Danyal Nawabi, orthopedic surgery fellow, and research collaborators at HSS, will be reported at the upcoming annual meeting of the American Academy of Orthopaedic Surgeons, March 19-23, in Chicago.
PISCATAWAY, NJ – Some 2-year-olds whose moms used methamphetamine during pregnancy may have an abnormal response to stressful situations, according to a study in the May issue of the Journal of Studies on Alcohol and Drugs.
One of the most southerly populations of polar bears in the world – and the best studied – is struggling to cope with climate-induced changes to sea ice, new research reveals. Based on over 10 years' data the study, published in the British Ecological Society's Journal of Animal Ecology, sheds new light on how sea ice conditions drive polar bears' annual migration on and off the ice.
Research: Use of high potency statins and rates of admission for acute kidney injury: multicenter, retrospective observational analysis of administrative databases
Editorial: Statins in acute kidney injury: friend or foe?
Patients taking high potency statins for high blood pressure are at a 34% higher risk of being hospitalised for acute kidney injury (AKI), compared with those taking low potency statins, a paper published today on bmj.com suggests.
In Africa, issues of vaccine supply, financing, and sustainability require urgent attention if the Millennium Development Goals are to be achieved, according to African experts writing in this week's PLOS Medicine.
Shingai Machingaidze, Charles Wiysonge, and Gregory Hussey from the University of Cape Town in South Africa commend African countries for their progress in immunisation programmes but infectious disease outbreaks, for example, polio and measles outbreaks, as well as high vaccine dropout rates across the region, indicate failures within the immunisation system.
ALBUQUERQUE, N.M. — An alloy that may improve high-temperature electronics in oil and geothermal wells was really a solution in search of a problem.
Sandia National Laboratories first investigated the gold-silver-germanium alloy about 15 years ago as a possible bonding material in a new neutron tube product. But a design change forced Sandia to shelve the material, said Paul Vianco, who has worked in soldering and brazing technology at Sandia for 26 years.
NEW YORK (March 19, 2013) -- Accountable Care Organizations (ACOs), a key feature of the Affordable Care Act (ACA), aim to control health care costs, enhance quality in health care and improve population health. But what does "improving population health" really mean? This is the question asked in a new viewpoint article by Weill Cornell Medical College researchers published in the March 20 issue of the Journal of the American Medical Association (JAMA). The authors argue a clear definition is crucial in order to formulate effective health care and social service policy.