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Medical News Update from News-Medical.Net - 26th June 2007

Research into Alzheimer's disease and dementia wins Queen's doctor major award
//Medical Research News
A prestigious scholarship award made for the first time ever outside the United States has been won by a Queen's University medical graduate.
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New understanding of cancer inhibitor topotecan
//Medical Research News
Researchers in Delft University of Technology's Kavli Institute of Nanoscience in The Netherlands have cast new light on the workings of the important cancer inhibitor topotecan.
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Stanford researchers get scoop on baby poop!
//Medical Research News
Researchers at the Stanford University School of Medicine are as interested in a baby's poop as doting parents are, and for good reason.
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Scoliosis gene found
//Medical Research News
Physicians have recognized scoliosis, the abnormal curvature of the spine, since the time of Hippocrates, but its causes have remained a mystery -- until now. For the first time, researchers have discovered a gene that underlies the condition, which affects about 3 percent of all children.
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New blood thinner thrombin-receptor antagonist may work without bleeding risk
//Medical Research News
When studying a new blood thinner, one of the first signs the drug is working is seeing a slight increase in minor bleeding, nose bleeds and bruising, an inconvenient side effect of preventing the blood clots that are the leading cause of heart attack and stroke.
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Scientists discover proteins in blood that accurately identify colon cancer and precancerous polyps
//Medical Research News
Initial studies of the proteins, CCSA-3 and CCSA-4, suggest they could be used to develop a blood test to identify at-risk individuals.
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New genetic marker characterizes aggressiveness of cancer cells
//Medical Research News
Levels of a small non-coding RNA molecule called let-7 appear to define different stages of cancer better than some of the "classical" markers for tumor progression, researchers from the University of Chicago report in the June 25, 2007, early online edition of the Proceedings of the National Academy of Sciences.
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PINK1 protects from Parkinson's
//Medical Research News
Parkinson disease (PD) is a common neurodegenerative disease characterized by the selective loss of midbrain dopaminergic neurons.
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DNA repair proteins monitored at double-strand break
//Medical Research News
St. Jude investigators recently had a molecule's eye view of the human cell's DNA repair kit as it assembled on a double-strand break to link together the broken ends.
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Does air pollution have a bigger effect on the immune system of females than males?
//Medical Research News
Does air pollution have a bigger effect on the immune system of females than males? It did among mice exposed to ozone -- a major component in air pollution that is known to negatively affect lung function -- and then infected with pneumonia, as significantly more females died from the infection than males.
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Animal studies shouldn't alter anesthesiology practice in newborns
//Medical Studies/Trials
Recent studies showing that commonly used anesthetic agents can cause brain damage in animals don't prove that similar harmful effects occur in human newborns - and shouldn't affect current approaches to anesthesia in preterm and ill infants, according to a leading expert on pain management in newborns.
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Help-seeking and access to mental health care in a university student population
//Medical Studies/Trials
Studies show that the incidence of mental illness on college campuses is rising, and a new survey of 2,785 college students indicates that more than half of students with significant symptoms of anxiety or depression do not seek help.
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Study looks at adults who provide alcohol to underage drinkers
//Medical Studies/Trials
Nearly 20 percent of young males are willing to purchase alcohol for underage youth when approached outside of an alcohol establishment, according to researchers at the University of Minnesota School of Public Health.
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DNA repair by Brca2 prevents medulloblastoma
//Medical Studies/Trials
St. Jude investigators have gained some of the first major insights into how certain genes known to prevent cancer also guide the nervous system's normal development before birth and during infancy by repairing DNA damage.
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Noninvasive screening in early pregnancy reduces Down's births by 50 percent
//Medical Studies/Trials
Non-invasive screening of pregnant women with ultrasound early in pregnancy, combined with maternal blood analysis, has reduced the number of children born in Denmark with Down Syndrome by 50%, a scientist will tell the annual conference of the European Society of Human Genetics today.
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Multidisciplinary approach to treatment of heart attacks a success
//Medical Studies/Trials
Acute heart attacks can be successfully treated through a multidisciplinary team approach involving Emergency Medical Services, emergency physicians, cardiologists and specialty centres, according to a study conducted by Dr. Jacobus S. de Villiers and colleagues in Calgary.
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Portion-control dishes may help obese diabetics lose weight
//Medical Studies/Trials
A plate and cereal bowl with markers for proper portion sizes appear to help obese patients with diabetes lose weight and decrease their use of glucose-controlling medications, according to a report in the June 25 issue of Archives of Internal Medicine.
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Personal comments by physicians distract from patient needs
//Medical Studies/Trials
In well-intentioned efforts to establish relationships, some physicians tell patients about their own family members, health problems, travel experiences and political beliefs.
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Obesity associated with lower risk of active pulmonary tuberculosis in older population of Hong Kong
//Medical Studies/Trials
Obese or overweight Chinese individuals age 65 and older have a lower risk of developing tuberculosis than those at a normal weight, according to a study in the June 25 issue of Archives of Internal Medicine.
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Chronic methamphetamine abuse linked to cardiovascular disease
//Medical Studies/Trials
The study is being published the week of June 25 in an advanced online edition of the Proceedings of the National Academy of Sciences.
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Size of family appears to affect breast cancer risk
//Women's Health News
Researchers have found that the probability of the breast cancer gene mutation BRCA among women with a history of breast cancer is greater when the number of older, female relatives in the family is smaller, according to a study in the June 20 issue of JAMA: The Journal of the American Medical Association.
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Morning sickness may indicate lower risk of breast cancer
//Women's Health News
It may not seem so at the time, but women who suffer through morning sickness during their pregnancies actually may be fortunate.
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Calcium from food best for protecting bone health
//Women's Health News
Women who get most of their daily calcium from food have healthier bones than women whose calcium comes mainly from supplemental tablets, say researchers at Washington University School of Medicine in St. Louis.
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Simple steps make breast cancer survivors eager to exercise
//Women's Health News
Simple steps, like giving breast cancer survivors an exercise workbook or step pedometer, can improve their quality of life and fatigue levels.
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Extra vitamin A does not help mothers and children in developing countries
//Women's Health News
Giving mothers and children in developing countries twice the WHO recommended doses of vitamin A, as suggested by an international vitamin group, does not have a beneficial effect.
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Women need to start thinking about heart disease prevention before menopause
//Women's Health News
Studies in female monkeys helped raise important questions about hormone therapy that were addressed in a Women's Health Initiative study reported last week in the New England Journal of Medicine .
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Frequent self-weighing is not associated with depression in women
//Women's Health News
A study being published in a recent issue of Preventive Medicine found no strong evidence linking frequent scale stepping and depression in women. In addition, self-weighing daily, rather than once every week or month, was associated with lower Body Mass Index (BMI) levels in women 40 years or older.
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Women's mortality rates for cardiovascular disease differ widely among hospitals
//Women's Health News
Women treated for cardiovascular disease at the nation's best- performing hospitals have a 39 percent lower risk-adjusted mortality rate when compared with women at the nation's poorest-performing hospitals, according to the fourth annual HealthGrades Women's Health Outcomes in U.S. Hospitals study.
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Mid-life stroke in women
//Women's Health News
More women than men appear to be having a stroke in middle age, according to a study published June 20, 2007, in the online edition of Neurology, the medical journal of the American Academy of Neurology.
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Ovarian cancer is not a symptom free disease
//Women's Health News
Ovarian cancer is not the symptom free disease that many medical textbooks have been claiming for years, says an Editorial in this week's edition of The Lancet.
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