Minggu, 21 Agustus 2011

ScienceDaily Health Headlines -- for Sunday, August 21, 2011

ScienceDaily Health Headlines

for Sunday, August 21, 2011

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Parasite uses the power of attraction to trick rats into becoming cat food (August 20, 2011) -- Rats infected with the parasite Toxoplasma seem to lose their fear of cats -- or at least cat urine. Now researchers have discovered the brains of those infected, fearless male rats show activity in the region that normally triggers a mating response when encountering a female rat. But that does not mean it's love, as Toxoplasma just wants the rat to be eaten by a cat, so the parasite can reproduce in the cat's intestines. ... > full story

New piece to the puzzle of brain function (August 20, 2011) -- Researchers are discovering more about an important part of the brain's complex communication system. The discovery could form the basis for future development of better medicines for patients with psychiatric disorders. ... > full story

Coronary calcium beats C-reactive protein for predicting heart attack and stroke risk, study finds (August 20, 2011) -- The presence of calcium in coronary arteries is a much better predictor of heart attack and stroke than C-reactive protein among people with normal levels of LDL cholesterol, according to a study of more than 2,000 people. ... > full story

Kinder, gentler cell capture method could aid medical research (August 20, 2011) -- A research team has come up with a potential solution to a two-pronged problem in medical research: How to capture cells on a particular spot on a surface using electric fields and keep them alive long enough to run experiments on them. ... > full story

Most U.S. physicians will face malpractice claims, but risk of making payment is low, analysis finds (August 20, 2011) -- While most U.S. physicians will face a malpractice lawsuit at some time in their careers, the vast majority of those suits will not result in payment to a plaintiff. The most comprehensive analysis of the risk of malpractice claims by physician specialty in more than two decades finds that the annual chance of facing a claim varies from 5 percent in low-risk specialties to 20 percent in specialties at the highest risk. ... > full story

Enzyme's structure reveals basis for head, reproductive organ deformities (August 20, 2011) -- Scientists have reported the structure of two enzyme mutations that result in congenital defects. ... > full story

Fishing games gone wrong: Trial-and-error behind important cause of female infertility (August 20, 2011) -- When an egg cell is being formed, the cellular machinery which separates chromosomes is extremely imprecise at fishing them out of the cell's interior, scientists have discovered. The findings could explain why errors in the number of chromosomes in the egg cell are the leading cause of miscarriages and severe congenital diseases like Down's syndrome, as well as causing female infertility. ... > full story

Cholesterol-lowering statin drugs can reduce the risk of stroke, but sometimes should be avoided, study suggests (August 20, 2011) -- For many patients, cholesterol-lowering statin drugs can reduce the risk of strokes as well as heart attacks. However, neurologists caution that statins may not be appropriate for certain categories of patients who are at-risk for stroke. ... > full story

Spoilt food soon a thing of the past? (August 20, 2011) -- Unwanted bacteria, yeasts and molds can cause major problems for the food industry as well as consumers. Researchers have now developed new methods to identify potential sources of contamination. Using a spectrometer, the researchers are able to detect undesirable microorganisms in finished products and trace them back to the various steps in the production process. ... > full story

Four-year-olds know that being right is not enough (August 20, 2011) -- As they grow, children learn a lot about the world from what other people tell them. Along the way, they have to figure out who is a reliable source of information. A new study finds that when children reach around 4 years, they start noticing whether someone is actually knowledgeable or if they're just getting the answers from someone else. ... > full story

Active participation in voluntary organizations declining faster than checkbooks can keep up (August 20, 2011) -- The decline in active memberships in civic groups, fraternal organizations, and other local associations is greater than the increase in checkbook memberships, according to new research. ... > full story

Mother's BMI linked to fatter babies (August 19, 2011) -- Babies of mothers with a higher pre-pregnancy body mass index (BMI) are fatter and have more fat in their liver, a study has found. ... > full story


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