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The incidence of a certain type of gastric cancer has declined in the last 30 years for all age groups and races, except for whites 25 to 39 years of age, according to a study in the May 5 issue of JAMA.

Men 45 years or older who received pneumococcal vaccine were not less likely to have a heart attack or stroke compared to men who did not receive the vaccine, according to a study in the May 5 issue of JAMA.

Children and adolescents with cystic fibrosis who received the antibiotic azithromycin did not experience improved lung function, compared to patients who received placebo, according to a study in the May 5 issue of JAMA.

Cardiovascular disease (CVD) and death rates will surge in China by up to 73 percent by 2030, due to aging, smoking, high blood pressure and other risk factors, according to research reported in Circulation: Cardiovascular Quality and Outcomes, an American Heart Association journal.

Patients who can postpone non-cardiac surgery for at least six weeks after receiving a coronary stent are less likely to suffer reduced blood flow to the heart, heart attack and death than those who have surgery sooner, Scottish researchers report in Circulation: Cardiovascular Interventions, an American Heart Association journal.

NEW ORLEANS -- Research teams led by Mayo Clinic have demonstrated for the first time that two types of colorectal pre-cancers can be detected through noninvasive stool DNA testing. The two studies being presented demonstrate that stool DNA testing may be useful for detection of premalignant dysplasia in patients with inflammatory bowel disease (IBD) and of an important type of colorectal pre-cancer called serrated polyps.

Philadelphia, PA, May 4, 2010 – High altitude medicine is a "natural research laboratory" for the study of cardiovascular physiology and pathophysiology. As such, it can shed light on conditions and diseases that mimic the low oxygen content of the atmosphere at the top of mountains.

Agricultural Research Service (ARS) scientists have identified sources of genetic resistance to sheath blight, a major disease affecting rice production worldwide.

DURHAM, N.C. – DNA testing of garden ferns sold at plant nurseries in North Carolina, Texas, and California has found that plants marketed as American natives may actually be exotic species from other parts of the globe.

The finding relied on a new technique called "DNA barcoding" that uses small snippets of DNA to distinguish between species, in much the same way that a supermarket scanner uses the black lines in a barcode to identify cans of soup or boxes of cereal.

By the time they reach school age, one in 20 children have hearing loss in one ear. That can raise significant hurdles for these children, say the results of a new study at Washington University School of Medicine in St. Louis, because loss of hearing in one ear hurts their ability to comprehend and use language.

A medication most often used to treat heart arrhythmias also reduces a central symptom of myotonic dystrophy, the most common type of muscular dystrophy in adults.

The findings about the medication mexiletine – a chemical cousin of lidocaine – were published May 4 in the journal Neurology, a publication of the American Academy of Neurology.

Faster Salmonella detection now possible with new technique

AMES, Iowa - Using technology available through a local company, an Iowa State University researcher is working on a faster method to detect and genetically identify salmonella from contaminated foods.

Calgary, AB – Cryptococcus disease is a rare but serious infection resulting from inhaling a toxic fungus often found in fir trees. Approximately 250 people have been infected with the disease in British Columbia since its emergence in 1999. The disease can cause meningitis, pneumonia and in 10 per cent of cases it can lead to death.

Chickens shed light on ovarian cancer

URBANA – In the race to find answers about ovarian cancer, researchers now have something to cluck about. For five years, University of Illinois researchers have been using the chicken as a model to study this deadly disease and have recently discovered that a diet enriched with flaxseed decreases severity of ovarian cancer and increases survival in hens.

In people with insulin resistance or full-blown diabetes, an inability to keep blood sugar levels under control isn't the only problem by far. A new report in the May issue of Cell Metabolism, a Cell Press publication, shows that our arteries suffer the effects of insulin resistance, too, just for entirely different reasons.

"We think about insulin resistance in liver, muscle, and fat, but insulin also works on vascular cells," said Christian Rask-Madsen of the Joslin Diabetes Center in Boston.