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Sunday, November 18, 2012

ScienceDaily: Top Health News

ScienceDaily: Top Health News

DNA packaging discovery reveals principles by which CRC mutations may cause cancer

Posted: 17 Nov 2012 03:46 PM PST

A new discovery concerning a fundamental understanding about how DNA works will produce a "180-degree change in focus" for researchers who study how gene packaging regulates gene activity, including genes that cause cancer and other diseases.

Anxiety linked to chest pain in children

Posted: 17 Nov 2012 03:46 PM PST

Psychological factors can have as much -- or more -- impact on pediatric chest pain as physical ones, a new study found recently. Psychologists discovered pediatric patients diagnosed with non-cardiac chest pain have higher levels of anxiety and depression than patients diagnosed with innocent heart murmurs -- the noise of normal turbulent blood flow in a structurally normal heart.

Wandering minds associated with aging cells: Attentional state linked to length of telomeres

Posted: 17 Nov 2012 03:45 PM PST

Scientific studies have suggested that a wandering mind indicates unhappiness, whereas a mind that is present in the moment indicates well-being. Now, a preliminary study suggests a possible link between mind wandering and aging, by looking at a biological measure of longevity.

Hepatitis C treatment's side effects can now be studied in the lab

Posted: 16 Nov 2012 01:10 PM PST

Adverse side effects of certain hepatitis C medications can now be replicated in the lab, thanks to a research team. The new method aids understanding of recent failures of hepatitis C antiviral drugs in some patients, and could help to identify medications that eliminate adverse effects. The findings may aid the development of safer and more effective treatments for hepatitis C and other pathogens such as SARS and West Nile virus.

Exercise benefits found for pregnancies with high blood pressure, researchers say

Posted: 16 Nov 2012 01:10 PM PST

Contrary to popular thought, regular exercise before and during pregnancy could have beneficial effects for women that develop high blood pressure during gestation, a human physiology professor said.

Reconsidering cancer's bad guy

Posted: 16 Nov 2012 09:46 AM PST

Researchers have found that a protein, known for causing cancer cells to spread around the body, is also one of the molecules that trigger repair processes in the brain.

New research explores why we remember and why we forget

Posted: 16 Nov 2012 09:45 AM PST

Psychological scientists are exploring the mechanisms that underlie memory to understand why we remember certain things and why we forget others.

Teenagers urged to exercise to ward off bone disease

Posted: 16 Nov 2012 09:45 AM PST

Playing soccer or running for at least three hours a week could help teenagers counteract the potential damage to their bone health caused by prolonged spells of sitting.

Gene distinguishes early birds from night owls and helps predict time of death

Posted: 16 Nov 2012 09:45 AM PST

New research shows that a gene is responsible for a person's tendency to be an early riser or night owl -- and helps determine the time of day a person is most likely to die.

Improving quality of life for the bedridden: Textile pressure ulcer prevention

Posted: 16 Nov 2012 05:55 AM PST

Immobile patients are in constant danger of developing pressure ulcers on the skin. Medical researchers have worked together to develop a special sheet that is gentle on the skin and helps to make patients more comfortable.

Mechanism of breathing muscle 'paralysis' in dreaming sleep identified

Posted: 16 Nov 2012 05:52 AM PST

A novel brain mechanism mediating the inhibition of the critical breathing muscles during rapid eye movement (REM) sleep has been identified for the first time in a new study.

Sports-related injuries requiring surgery on the rise among high school athletes

Posted: 16 Nov 2012 05:51 AM PST

As the nearly 8 million U.S. high school students who participate in sports every year suit up this season, scientists are encouraging them to focus on something more valuable than winning – their health. New research shows fracture and ACL prevention programs are essential in ensuring injuries don't sideline players.

Like a game of poker, school programs' success can hinge on principals going 'all in'

Posted: 15 Nov 2012 10:37 AM PST

When principals go "all in" in terms of supporting school programs, teachers stand a better chance of successfully implementing change, according to new research.

Protein tug of war points toward better therapies for cardiovascular disease

Posted: 15 Nov 2012 10:35 AM PST

Two proteins are in a tug of war that determines how much the body makes of superoxide, a highly reactive and potentially destructive product of oxygen that's dramatically elevated in cardiovascular disease, researchers report. Their finding indicates an antiulcer drug just may help the body reduce excessive levels.

Asthma is not linked to lower educational attainment

Posted: 15 Nov 2012 10:34 AM PST

Having asthma is not linked to poorer scores in national school examinations, a new study shows. In contrast, ethnicity and social deprivation were associated with poorer educational outcomes in the study.

Influenza curbs part of immune system and abets bacterial infections

Posted: 15 Nov 2012 10:31 AM PST

When infected with influenza, the body becomes an easy target for bacteria. The flu virus compromises the capacity of the host's immune system to effectively fight off bacteria. Now immunologists have discovered that an immune system molecule called TLR7 is partly to blame. The molecule recognizes the viral genome -- and signals scavenger cells of the immune system to ingest fewer bacteria.
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