Sabtu, 12 Maret 2011

ScienceDaily Health Headlines

for Saturday, March 12, 2011

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Reading in two colors at the same time: Patterns of synesthesia brain activity revealed (March 11, 2011) -- People with synesthesia often report perceiving letters as appearing in different colors. But how do their brains accomplish this feat? What is perhaps most puzzling about this condition is that people actually claim to see two colors simultaneously when reading letters or numbers: the real color of the ink (e.g. black) and an additional -- synesthetic -- color. Now a new study has revealed the patterns of brain activity that allow some people to experience the sensation of "seeing" two colors at the same time. ... > full story

Smoking may increase risk for lung disease (March 11, 2011) -- Researchers have found that approximately one out of every 12 adult smokers have abnormal lung densities present on chest computed tomography images suggestive of interstitial lung disease which is associated with substantial reductions in lung volumes. In addition, despite being positively associated with smoking, these lung densities were inversely not associated with emphysema. ... > full story

Americans have higher rates of most chronic diseases than same-age counterparts in England (March 11, 2011) -- Despite the high level of spending on health care in the United States compared to England, Americans experience higher rates of chronic disease and markers of disease than their English counterparts at all ages. Why health status differs so dramatically in these two countries, which share much in terms of history and culture, is a mystery. ... > full story

Early male friendship as a precursor to substance abuse in girls (March 11, 2011) -- A new study shows that girls tend to pursue mixed-gender friendships earlier than boys, and may be more likely to develop substance abuse problems during late adolescence as a result. ... > full story

New view of human nerve cells opens door to potential drug targets (March 11, 2011) -- Scientists have found a way to uncover potential drug targets that have so far remained hidden from researchers’ view. By applying the new method to a type of nerve cell critical to regulating body temperature, the authors found more than 400 “receptors” (structures that bind other molecules, triggering some effect on the cell) responding to neurotransmitters, hormones, and other chemical signals. This represents 20 to 30 times more receptors than previous studies had identified. ... > full story

Trauma patients have higher rate of death for several years following injury (March 11, 2011) -- In a study that included more than 120,000 adults who were treated for trauma, 16 percent of these patients died within 3 years of their injury, compared to an expected population mortality rate of about 6 percent, according to a new study. The researchers also found that trauma patients who were discharged to a skilled nursing facility had a significantly increased risk of death compared with patients discharged home without assistance. ... > full story

Conflicts-of-interest in drug studies sneaking back into medical journals, say investigators (March 11, 2011) -- Hidden financial conflicts-of-interest are sneaking into published drug research through the back door, warns an international team of investigators. ... > full story

New treatment strategy effective for certain lung cancers (March 11, 2011) -- Two chemotherapy drugs now indicated for second and third-line therapy in patients with advanced non-small-cell lung cancer are remarkably effective in treating a certain subset of these patients, new study suggests. Researchers say these drugs should be considered as a first-line treatment in people who are known to carry an epidermal growth factor receptor mutation. ... > full story

Pinpointing air pollution's effects on the heart (March 11, 2011) -- Scientists are untangling how the tiniest pollution particles -- which we take in with every breath we breathe -- affect our health, making people more vulnerable to cardiovascular and respiratory problems. While scientists know that air pollution can aggravate heart problems, showing exactly how it does so has been challenging. Scientists have now shown that in people with diabetes, breathing ultrafine particles can activate platelets, cells in the blood that normally reduce bleeding from a wound, but can contribute to cardiovascular disease. ... > full story

New details about medically important protein family (March 11, 2011) -- Scientists have determined a new structure from a medically important superfamily of proteins. The structure should help instruct the design of a new kind of therapeutics for conditions ranging from Parkinson's disease to inflammation. ... > full story

Sleepy connected Americans (March 11, 2011) -- The 2011 Sleep in America poll finds pervasive use of communications technology in the hour before bed. It also finds that a significant number of Americans aren't getting the sleep they say they need and are searching for ways to cope. ... > full story

Patient's own bone marrow stem cells may provide treatment for brain injuries (March 11, 2011) -- Stem cells derived from a patient's own bone marrow were safely used in pediatric patients with traumatic brain injury, according to results of a Phase I clinical trial. ... > full story

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