Minggu, 27 Maret 2011

ScienceDaily Health Headlines

for Sunday, March 27, 2011

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Living at high altitude reduces risk of dying from heart disease: Low oxygen may spur genes to create blood vessels (March 26, 2011) -- Researchers have found that people living at higher altitudes have a lower chance of dying from heart disease and live longer. ... > full story

Supervised weight training safe for pregnant women, study suggests (March 26, 2011) -- Despite decades of doctors' reluctance to recommend weight training to pregnant women, a new study has found that a supervised, low-to-moderate intensity program is safe and beneficial. ... > full story

Tourettes brains are structured for greater, not lesser, cognitive motor control (March 26, 2011) -- Contrary to intuition, people who suffer from the motor and vocal tics characteristic of Tourette syndrome actually perform behavioral tests of cognitive motor control more accurately and quickly than their typically developing peers do. According to a new study, that enhanced control arises from structural and functional changes in the brain that likely come about from the need to constantly suppress tics. ... > full story

Neuroscientists decode crucial component in brain signal processing (March 26, 2011) -- A team of Neuroscientists from NeuroCure Cluster of Excellence at Charité – Universitätsmedizin Berlin and Baylor College of Medicine in Houston, Texas, have made a major breakthrough in understanding how signals are processed in the human brain. ... > full story

HIV integration requires use of a host DNA-repair pathway (March 26, 2011) -- The human immunodeficiency virus, the cause of AIDS, makes use of the base excision repair pathway when inserting its DNA into the host-cell genome, according to a new study. The research shows that crippling the repair pathway prevents the virus from completing this critical step in its life cycle. The findings offer potential new targets for novel anti-HIV drugs that may not lead as quickly to viral resistance as current drugs, the researchers say. ... > full story

'Simulated' needles just as effective as real acupuncture in treating nausea in cancer patients, study finds (March 26, 2011) -- Simulated acupuncture -- sometimes referred to as placebo -- is just as beneficial as real acupuncture for treating nausea in cancer patients undergoing radiotherapy, according to a study by researchers in Sweden. Patients, who received only standard care including medications for nausea, felt significant more nausea than patients in both the acupuncture groups. ... > full story

Universal property of music discovered (March 25, 2011) -- Researchers have discovered a universal property of scales. Until now it was assumed that the only thing scales throughout the world have in common is the octave. The many hundreds of scales, however, seem to possess a deeper commonality: if their tones are compared in a two- or three-dimensional way by means of a coordinate system, they form convex or star-convex structures. Convex structures are patterns without indentations or holes, such as a circle, square or oval. ... > full story

New colon cancer marker identified (March 25, 2011) -- A research team has identified an enzyme that could be used to diagnose colon cancer earlier. It is possible that this enzyme also could be a key to stopping the cancer. ... > full story

Promising clue to mechanism behind gene mutation that causes Parkinson's disease (March 25, 2011) -- Researchers have discovered a way that mutations in a gene called LRRK2 may cause the most common inherited form of Parkinson's disease. The study, published online this month in the journal Public Library of Science, shows that upon specific modification called phosphorylation, LRRK2 protein binds to a family of proteins called 14-3-3, which has a regulatory function inside cells. ... > full story

BrainGate neural interface system reaches 1,000-day performance milestone (March 25, 2011) -- An investigational implanted system being developed to translate brain signals toward control of assistive devices has allowed a woman with paralysis to accurately control a computer cursor at 2.7 years after implantation, providing a key demonstration that neural activity can be read out and converted into action for an unprecedented length of time. ... > full story

How well do you know your friends? (March 25, 2011) -- How does your best friend feel when people act needy? Or, about people being dishonest? What do they think when others seem uncomfortable in social situations? If you don't know -- your relationship may pay a price. ... > full story

A safer, more effective morphine may soon be possible (March 25, 2011) -- An orphan drug originally used for HIV treatment has been found to short-circuit the process that results in additional sensitivity and pain from opioid use. ... > full story

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