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Medical News Update from News-Medical.Net - 11th February 2007

Power-boosting signal in muscle declines with age
//Medical Research News
As people age, they may have to exercise even harder to get the benefits afforded to younger folk. That's the suggestion of a report in the February issue of the journal Cell Metabolism, showing that a signal that gives muscles a kind of metabolic boost in response to exercise is blunted in older animals.
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Researchers study dosimetry in radiotherapy through Monte Carlo techniques
//Medical Research News
The mathematical tool, quite used in Medical Physics, takes its name from the city of Montecarlo, well-known for its bingo halls and games of chance.
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Video games sharpen vision
//Medical Research News
Video games that contain high levels of action, such as Unreal Tournament, can actually improve your vision.
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New therapy teaches pain coping for those suffering from common jaw disorder
//Medical Research News
A new supplemental therapy that teaches pain coping and biofeedback skills can reduce pain, the potential for chronic pain and health-care costs for millions of Americans suffering from a common jaw disorder, UT Southwestern Medical Center researchers have found.
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Contraceptive gap in developed world
//Medical Research News
Analysis of survey data from 55 developing countries has shown that, although the use of contraception is increasing, its use by the poorest people remains low. A 'contraceptive gap' separates the very poor from the rest of society.
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Three-dimensional fabric "scaffold" to repair cartilage damage
//Medical Research News
Using a unique weaving machine of their design, Duke University Medical Center researchers have created a three-dimensional fabric "scaffold" that could greatly improve the ability of physicians to repair damaged joints with the patient's own stem cells.
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New, rapid-detection system for Salmonella
//Medical Research News
The food and drink we consume have to pass strict quality controls. Nevertheless, these measures are not always sufficient, given that sometimes certain foodstuffs can still give rise to food poisoning, most often caused by micro-organisms. The Salmonella bacterium is undoubtedly one of the best known of these.
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New understanding of blood pressure gene could lead to new treatments
//Medical Research News
Research by scientists at UCL (University College London) has clearly demonstrated for the first time the structure and function of a gene crucial to the regulation of blood pressure. The discovery could be important in the search for new treatments for illnesses such as heart disease, the UK's biggest killer.
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Ceramide plays big role in embryonic development
//Medical Research News
A little-known lipid plays a big role in helping us grow from a hollow sphere of stem cells into human beings, researchers have found.
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Single transcription factor GABP a major player in cell growth
//Medical Research News
When cells go about the business of dividing, they can get sidelined. Maybe there aren't enough nutrients. Maybe there aren't the right signals to resume multiplying. Either way, cells go quiet.
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Study highlights importance of students' beliefs for their academic progress
//Medical Studies/Trials
Research on how junior high school students' beliefs about intelligence affect their math grades found that those who believed that intelligence can be developed performed better than those who believed intelligence is fixed.
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Teen online behaviors associated with online interpersonal victimization
//Medical Studies/Trials
Teens who talk to strangers online are more likely to become victims of online harassment than those who share their personal information on the Internet, according to a report in the February issue of Archives of Pediatrics & Adolescent Medicine.
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Rapid transport of large polymeric nanoparticles in fresh undiluted human mucus
//Medical Studies/Trials
The layers of mucus that protect sensitive tissue throughout the body have an undesirable side effect: they can also keep helpful medications away.
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Prevalence of overactive bladder overestimated
//Medical Studies/Trials
According to a recent study overactive bladder is much less common among Finns than earlier research suggests.
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Levetiracetam shows promise for epilepsy
//Medical Studies/Trials
People with newly diagnosed epilepsy experienced few, if any, seizures while taking the drug levetiracetam as a single therapy, giving hope to epilepsy patients who don't respond to or can't tolerate existing treatments, according to a study published in the February 6, 2007 issue of Neurology, the scientific journal of the American Academy of Neurology.
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Spring births increase likelihood of preterm birth
//Medical Studies/Trials
Women who become pregnant in spring are more vulnerable to preterm birth than those who conceive in other seasons, according to researchers at the University of Pittsburgh.
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Antipodean Pharma commences phase 2 trial in hepatitis C
//Medical Studies/Trials
Antipodean Pharmaceuticals has announced it has initiated a Phase 2 clinical trial of its lead compound MitoQ (mitoquinone) to investigate the drug's efficacy to reduce liver damage in patients with raised liver enzymes associated with the Hepatitis C virus (HCV).
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Loneliness linked to increased risk of Alzheimer's disease
//Medical Studies/Trials
Lonely individuals may be twice as likely to develop the type of dementia linked to Alzheimer's disease in late life as those who are not lonely, according to a study by researchers at the Rush Alzheimer's Disease Center.
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Most nursing students believe it's wrong to lie to patients
//Medical Studies/Trials
Today's nursing students believe in greater honesty with patients, are less likely to agree to short-notice shift changes and are much older than their 1983 counterparts, according to a study published in the latest Journal of Advanced Nursing.
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Stents benefit people at high risk of stroke due to blocked blood vessels in the brain
//Medical Studies/Trials
For the study, researchers in Beijing evaluated 213 people who had received a stent, which is an expandable wire form used to open up a narrowing or totally obstructed blood vessel.
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New test shows which breast cancers will recur
//Women's Health News
Approval has been granted by the FDA for a gene-based test that helps tell early-stage breast cancer patients whether they need chemotherapy after their surgery.
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Britain to debate availability of HRT and the pill over the counter
//Women's Health News
The organisation in the UK which regulates drugs and treatments, the Medicines and Healthcare Products Regulatory Agency (MHRA) is to hold a seminar in London as part of a campaign to improve women's health.
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Poor mums more likely to become obese
//Women's Health News
A new study in BJOG: An International Journal of Obstetrics and Gynaecology, reveals how women from economically-disadvantaged backgrounds are most at risk of developing maternal obesity.
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Risk of developing diabetes increasingly involved in decisions regarding HRT
//Women's Health News
Although doctors for years have "talked about the health effects of hormones on bones, breasts and women's hearts," diabetes has not been "part of the debate" until last week, when the North American Menopause Society in a revised position statement said that women taking hormone replacement therapy appear to be less likely to develop the disease, the Wall Street Journal reports.
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High blood pressure in pregnancy may lead to heart disease
//Women's Health News
Women who develop high blood pressure during pregnancy are more likely to develop increased coronary calcification later in life than those who maintained a normal blood pressure, researchers said in Hypertension: Journal of the American Heart Association.
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Surrogate motherhood in India
//Women's Health News
Reuters on Monday examined the practice of surrogate motherhood in India, where surrogacy services are "far cheaper than in the West."
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Minority women less aware of heart disease than white women
//Women's Health News
U.S. minority women are less aware than white women of their risk for heart problems and stroke, although they are at an increased risk of developing cardiovascular disease, according to a study published in the January/February issue of the Journal of Women's Health, Reuters reports.
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Women under 25 should be offered cervical screening
//Women's Health News
Last month, the British Medical Journal reported a fall in the number of young women attending smear tests. Now, two senior doctors warn that a new policy not to screen women aged 20-24 may be a factor in falling coverage and could increase the risk of cancer developing in young women.
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Current arguments for reform of UK Abortion Act
//Women's Health News
The 40th anniversary in October this year of the passing of the UK Abortion Act is certain to be marked by attempts to reopen the debate about lowering the upper limit for legal terminations. In a special report in this week's British Medical Journal, journalist Jonathan Gornall examines current arguments for reform.
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