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Wednesday, March 14, 2012

ScienceDaily: Top Health News

ScienceDaily: Top Health News


Fatty diets may be associated with reduced semen quality

Posted: 13 Mar 2012 08:03 PM PDT

Men's diets, in particular the amount and type of different fats they eat, could be associated with their semen quality according to the results of a study. The study of 99 men in the USA found an association between a high total fat intake and lower total sperm count and concentration.

Losing belly fat, whether from a low-carb or a low-fat diet, helps improve blood vessel function

Posted: 13 Mar 2012 08:03 PM PDT

Overweight people who shed pounds, especially belly fat, can improve the function of their blood vessels no matter whether they are on a low-carb or a low-fat diet, according to a new study.

Dietary patterns exist among US adults based on demographics

Posted: 13 Mar 2012 04:00 PM PDT

Scientists say they have identified five eating patterns for US adults that are strongly influenced by age, race, region, gender, income and education.

Treating intestinal E. coli infection with antibiotic may reduce duration of bacterial carriage

Posted: 13 Mar 2012 03:59 PM PDT

In the E. coli outbreak in Germany in May 2011, treatment with azithromycin was associated with a lower frequency of long-term carriage of the bacteria and shorter duration of shedding of the bacteria in stool specimens, according to a new study.

Potential Alzheimer's disease drug slows damage and symptoms in animal model

Posted: 13 Mar 2012 03:58 PM PDT

A compound that previously progressed to Phase II clinical trials for cancer treatment slows neurological damage and improves brain function in an animal model of Alzheimer's disease, according to a new study. The compound epothilone D is effective in preventing further neurological damage and improving cognitive performance in a mouse model of Alzheimer's disease (AD). The results establish how the drug might be used in early-stage AD patients.

Scientists produce eye structures from human blood-derived stem cells

Posted: 13 Mar 2012 03:52 PM PDT

For the first time, scientists have made early retina structures containing proliferating neuroretinal progenitor cells using induced pluripotent stem (iPS) cells derived from human blood.

Reduced baby risk from another Cesarean

Posted: 13 Mar 2012 03:52 PM PDT

A major study has found that women who have had one prior cesarean can lower the risk of death and serious complications for their next baby -- and themselves -- by electing to have another cesarean.

Simple, low-cost yoga program can enhance coping and quality of life for the caregivers

Posted: 13 Mar 2012 11:50 AM PDT

For dementia caregivers, researchers have found that engaging in a brief, 12-minute yogic practice that included an ancient chanting meditation, can lead to improved cognitive functioning, and lower levels of depression for caregivers.

Children at risk for schizophrenia show disordered brain networks

Posted: 13 Mar 2012 11:50 AM PDT

Neuroscientists have discovered stark developmental differences in brain network function in children of parents with schizophrenia when compared to those with no family history of mental illness.

Multiple sclerosis study documents negative effect of warmer weather on cognition

Posted: 13 Mar 2012 11:50 AM PDT

Scientists have shown that outdoor temperature significantly impacts cognitive functioning in multiple sclerosis (MS). In cross-sectional and longitudinal samples, patients performed worse on processing speed and memory tasks during warmer outdoor temperatures. Previous research documented increased disease activity during warmer months; this study is the first to show that cognition also fluctuates. This is the first study to support the subjective impression of patients with MS that warm weather negatively affects their cognition.

Gene known to protect against cancer can also promote tumor growth

Posted: 13 Mar 2012 11:07 AM PDT

Can a gene simultaneously protect against cancer and favor its growth? Researchers have discovered a gene with this double-edged property and suspect there may be many more that share it.

More trans fat consumption linked to greater aggression, researchers find

Posted: 13 Mar 2012 09:25 AM PDT

Researchers have shown -- by each of a range of measures, in men and women of all ages, in Caucasians and minorities -- that consumption of dietary trans fatty acids is associated with irritability and aggression.

Get me out of this slump: Visual illusions improve sports performance

Posted: 13 Mar 2012 09:17 AM PDT

With the NCAA men's college basketball tournament set to begin, college basketball fans around the United States are in the throes of March Madness. Anyone who has seen a game knows that the fans are like extra players on the court, and this is especially true during critical free throws. Fans of the opposing team will wave anything they can, from giant inflatable noodles to big heads, to make it difficult for players to focus on the basket.

Microbubbles and ultrasound help penetrate blood-brain barrier

Posted: 13 Mar 2012 09:17 AM PDT

One of the trickiest parts of treating brain conditions is the blood-brain barrier, a blockade of cells that prevent both harmful toxins and helpful pharmaceuticals from getting to the body's control center. But, a new technique uses an MRI machine to guide the use of microbubbles and focused ultrasound to help drugs enter the brain, which may open new treatment avenues for devastating conditions like Alzheimer's and brain cancers.

Body clocks may hold key for treatment of bipolar disorder

Posted: 13 Mar 2012 07:39 AM PDT

Scientists have gained insight into why lithium salts are effective at treating bipolar disorder in what could lead to more targeted therapies with fewer side-effects.

Scientists find insulin, nutrition prevent blood stem cell differentiation in fruit flies

Posted: 12 Mar 2012 07:21 AM PDT

Stem cell researchers have shown that insulin and nutrition keep blood stem cells from differentiating into mature blood cells in Drosophila, the common fruit fly.

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