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Researchers at the Stanford University School of Medicine used concepts borrowed from the popular social networking site to analyze the brains of people with Alzheimer's disease. They found that patients' brains were less well-connected than the brains of people without the disorder.

Research in fruit flies has shown that enhancing the production of a protein called neprilysin can reduce the formation of plaques and neuron death associated with Alzheimer's, at the expense of reducing the flies' lifespan.

Every year thousands of doctors and scientists fly to meetings all over the world, but with climate change accelerating, can this type of travel be justified, two doctors debate the issue in the British Medical Journal.

The preparation of a potato can have a big impact on its mineral content, Agricultural Research Service scientists report in a new study of this popular vegetable. Baked, roasted, boiled or fried, the potato is America's favorite vegetable. Every year, the average American eats about 130 pounds of potatoes, which are loaded with vitamins and minerals.

Shiitake (Lentinula edodes) mushrooms are good for you--and shiitake byproducts can be good for other crops. These mushrooms contain high-molecular-weight polysaccharides (HMWP), which some studies suggest may improve human immune function.

Knowing the preferences of foodborne pathogens such as Escherichia coli O157:H7 is essential to a successful counterattack on these microbes. That's why microbiologists are scrutinizing the little-understood ability of E. coli O157:H7 and Salmonella enterica to contaminate romaine lettuce.

Rates of sexually transmitted infections have doubled among the over-45s in less than a decade, reveals new research in the journal Sexually Transmitted Infections.

Heavy birthweight female babies are twice as likely to develop rheumatoid arthritis in adulthood as their average birthweight peers, suggests new research.

A new study shows the potential to pre-target the treatment of cancer cells -- bringing personalized medicine one step closer from the laboratory to patients. By combining new molecular imaging techniques with targeted therapy, pre-targeting offers cancer patients a more individualized treatment that can increase the effectiveness of therapies and minimize discomfort experienced during treatment.

A blue curing light used to harden dental fillings also may stunt tumor growth, Medical College of Georgia researchers say.