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Friday 17 June 2011

ScienceDaily: Top Health News



ScienceDaily: Top Health News


Posted: 16 Jun 2011 04:39 PM PDT
Scientists are shedding new light on why the anesthetic drug ketamine produces a fast-acting antidepressant response in patients with treatment-resistant depression.
Posted: 16 Jun 2011 04:39 PM PDT
Experts urge diabetes patients to remain on their prescribed medications unless instructed otherwise by their health-care provider.
Posted: 16 Jun 2011 04:39 PM PDT
A gel that creates a watertight seal to close surgical wounds provides a significant advance in the treatment of patients following spinal procedures, effectively sealing spinal wounds 100 percent of the time, a national multicenter randomized study has found.
Posted: 16 Jun 2011 04:37 PM PDT
"Super bugs," which can cause wide-spread disease and may be resistant to most, if not all, conventional antibiotics, still have their weaknesses. A team of Canadian scientists discovered that specific mixtures of antimicrobial agents presented in lipid (fatty) mixtures can significantly boost the effectiveness of those agents to kill the resistant bacteria.
Posted: 16 Jun 2011 04:37 PM PDT
Two-year-old Owen Stark came to hospital in the summer of 2010 near death from heart failure and dangerously high blood pressure in his lungs. Physicians knew they had to act fast to save his life. They made several strategic and innovative decisions that led to the first successful use of an artificial lung in a toddler.
Posted: 16 Jun 2011 11:27 AM PDT
As many as 15 percent of men have varicoceles, masses of enlarged and dilated veins in the testicles. There is new evidence that varicoceles, long known to be a cause of male infertility, interfere with the production of testosterone -- a crucial hormone to maintaining men's health.
Posted: 16 Jun 2011 11:27 AM PDT
Scientists have discovered an important new mechanism that allows cells to recognize when they are under stress and prime the DNA repair machinery to respond to the threat of damage.
Posted: 16 Jun 2011 09:19 AM PDT
Scientists have uncovered how the body's immune system launches its survival response to the notorious and deadly bacterium anthrax. The findings describe key emergency signals the body sends out when challenged by a life-threatening infection.
Posted: 16 Jun 2011 09:19 AM PDT
Researchers may have found the key to developing a method to rid the body of stem cells responsible for driving fat expansion. They've landed the first protein marker on the surface of those so-called adipose stromal cells (ASCs), which serve as progenitors of the cells that make up fat tissue.
Posted: 16 Jun 2011 08:30 AM PDT
A breakthrough in genetic research has uncovered the defect behind a rare hereditary children's disease that inhibits the body's ability to break down vitamin D. This discovery has led researchers to develop the first genetic and biochemical tests that positively identify the disease.
Posted: 16 Jun 2011 08:30 AM PDT
Medicine could very soon have a new ally in the fight against cancer: Terbium-161. Researchers have developed a new treatment method based on terbium-161 to treat smaller tumors and metastases in a more targeted way.
Posted: 16 Jun 2011 06:27 AM PDT
An experimental vaccine targets overactive antigens in highly aggressive brain tumors and improves length of survival in newly diagnosed patients, according to new data.
Posted: 16 Jun 2011 06:26 AM PDT
Structural biologists have obtained a precise molecular map of the binding site for an allosteric inhibitor in a subtype of the NMDA (N-methyl-D-aspartate) receptor, which is commonly expressed in brain cells, dysfunctions of which have been implicated in depression, schizophrenia, Parkinson's and Alzheimer's diseases.
Posted: 16 Jun 2011 05:18 AM PDT
Children as young as ten are making themselves vomit in order to lose weight and the problem is more common in boys than girls. 13% of the 8,673 girls and 7,043 boys who took part in the research admitted they made themselves sick to lose weight. But the figures were much higher in younger children, with 16% of 10-12 year-olds and 15% of 13-15 year-olds vomiting. The figures fell to 8% in 16-18 year-olds. The study of 120 schools also found that 16% of the boys made themselves sick, compared with 10% of the girls.
Posted: 16 Jun 2011 05:17 AM PDT
People often talk about "boosting" their immunity to prevent and fight colds. Nutritional supplements, cold remedies and fortified foods claim to stave off colds by augmenting the immune system. But new research suggests that tempering the immune response -- rather than enhancing it -- in asthma patients might be a better strategy when combating cold symptoms.
Posted: 15 Jun 2011 06:45 AM PDT
When populations around the globe started turning to agriculture around 10,000 years ago, regardless of their locations and type of crops, a similar trend occurred: the height and health of the people declined. The pattern holds up across standardized studies of whole skeletons in populations, say researchers in the first comprehensive, global review of the literature regarding stature and health during the agriculture transition.

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