Bottleneck in blood supply makes brain vulnerable to strokes
...n of an anesthetized rat. They used focused laser light to excite a dye they had injected into the bloodstream. A chemical reaction of the excited dye "nicked" the blood vessel at the target location and triggered the natural clotting response. "The technique creates a clot while generating very little...Men with hypertension who drink moderate amounts of alcohol may have a lower risk of heart attack
...ing their diet, physical activity and weight. Very light drinkers who consumed less than one drink every two to three days did not have lower risk than non-drinkers. However, because drinking three or more drinks a day increases blood pressure, it is important to adhere to the USDA guideline of one to two ...CHPA statement regarding 'Monitoring the Future' findings on cough medicine abuse
...rphan. We applaud the survey authors for shedding light on this trend surrounding the abuse of medicine. Combined with data gathered by the Partnership for a Drug-Free America for the last two years, this information underscores the critical need for education and awareness about the troubling trend of t...How your brain helps you become a wine expert
...smells simply through passive experience, shedding light on how we ultimately learn to identify thousands of smells from birth. The study also revealed for the first time how and where the brain modifies and updates information about smells. In the study, researchers presented a single odor to human sub...Capture study shows safety of carotid stenting in 'real-world' setting
... arteries. CMS is now re-evaluating that policy in light of data from CAPTURE and other post-market surveillance studies. "What were really working toward is providing patients with greater access to the technology, where we think it is appropriate," Dr. Gray said. "The CAPTURE trial is a giant step t...Heavy smokers who cut back still take in more toxins than light smokers
...o three times more total toxins per cigarette than light smokers. The study, published in the December iss...their smoking to levels similar with a group of 62 light smokers. The heavy smokers had smoked on average 26 cigarettes per day before their cigarette reduct...Bank on a Cure researchers identify pathways mediating myeloma treatment side effects
...de for multiple myeloma. The pathways may shed new light on individual differences in the response to cancer and its treatment, and may lead to the development of screenings and tailored interventions to prevent these side effects. The data were presented at the 48th Annual Meeting of the American Society ...Regulatory pathway in brain development possible basis for malformations
...etic regulator of brain development that sheds new light on how immature neural cells choose between proliferation and differentiation. Defects in regulating this choice result in brain malformations. Their research will be published on line the week of December 4, in advance of publication in the Procee...Pediatric specialists often far from home
...e worrisome example of the trend's implications in light of a national childhood obesity epidemic and related increases in Type II diabetes. She said pediatric subspecialties are among the smallest medical specialties in the United States. Researchers combined data from the American Board of Pediatrics w...Pure carbon nanotubes pass first in vivo test
...or emit near infrared light. Because near-infrared light passes harmlessly into the body, biomedical researchers are keen to use carbon nanotubes for the noninvasive diagnosis and treatment of diseases such as cancer and atherosclerosis. In the current study, Weisman, Curley and colleagues injected lab a...Adolescent smokers have a greater risk of developing alcohol-use disorders than nonsmokers
...ences were larger in younger adolescents and among light drinkers," said Grucza. "For example, among 15- to 17-year-olds who drank fewer than eight drinks in the month before the survey, more than 20 percent reported an AUD, compared with about five percent among the non-smoking group with the same level ...WHO and UN need to change the way they work to address Africa's problems
...tates the Editorial. The report suffers from being light on facts and heavy on well-rehearsed rhetoric. Much is lifted from past WHO World Health Reports and supplemented by data from other institutions. There are some useful anecdotes, for example one on Rwandas success in reducing road traffic accidents,...Optical technique provides improved 'virtual biopsies' of internal surfaces
...ter probe, a constantly rotating laser tip emits a light beam with an ever-changing wavelength. Measuring how each wavelength is reflected back, as the probe moves through the structure to be imaged, allows rapid acquisition of the data required to create the detailed microscopic images. In the Nature ...Columbia study examines ADHD's role in smoking
...ed from their ADHD symptoms and are less likely to light up." The Smoking Cessation Program at Columbia University Medical Center is seeking participants aged 18- to 55-years-old to enroll in this study. The study, being run out of the New York State Psychiatric Institute located on the CUMC campus on th...U-M researchers use nanoparticles to target brain cancer
...ood stream to tumor cells; a special type of laser light activates the drug to attack the tumor. Iron oxide is a contrast agent used to enhance magnetic resonance imaging, or MRI. "Photofrin goes into tumor blood vessels and collapses the vasculature, which then starves the tumor of the blood flow needed......rotein composition in the brain might help to shed light on mental diseases, eventually leading to better diagnosis, treatment, and possibly even prevention. A new study by Sabine Bahn and colleagues (Cambridge University) published in the international open-access journal PLoS Medicine provides a step in ...NC State start-up looks to turn 'lights out' on flu, other viruses
... on a light. Exposing a unique surface coating to light may in fact hold the key to protecting you from virtually all viruses and bacteria, including the feared avian flu. Laboratory testing of a novel, permanent nano-coating, developed in collaboration by researchers at North Carolina State University C...Light-sensitive photoswitches could restore sight to those with macular degeneration
...ssentially making blind nerve cells see, restoring light sensitivity in people with degenerative blindness ...the channel turns the cell on when zapped by green light and turns the cell off when hit by ultraviolet light. The researchers demonstrated in 2004 that the...Three-dimensional, miniature endoscope opens new diagnostic possibilities
...tures utilize bundles of optical fibers to supply light to and transmit images from the areas of interest....d spectrally encoded endoscopy (SEE). Multicolored light from a single optical fiber introduced through a probe about the size of a human hair is broken in...New study shows the benefits of eating fish greatly outweigh the risks
...er week of a variety of fish (for example, salmon, light tuna, shrimp, mackerel, and up to 6 oz. per week of albacore tuna) and avoid only four species of fish--golden bass (also known as tilefish), king mackerel, shark and swordfish--larger, predatory fish that have higher levels of mercury. The researche...