Articles tagged with: national institutes of health
Ancient Roots of Social Networks Modern social networks, from small networks of friends and family to entire countries, are based on cooperation. Individuals donate to the group and receive help back. A new study suggests that our early human ancestors may have had social networks strikingly similar to those of modern societies. A Hadza […]
Gene Regulator in Brain’s Executive Hub Tracked Across Lifespan – NIH study Mental illness suspect genes are among the most environmentally responsive For the first time, scientists have tracked the activity, across the lifespan, of an environmentally responsive regulatory mechanism that turns genes on and off in the brain’s executive hub. Among key findings of […]
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The Economic Cost of Uterine Fibroids … Dr. James Segars, head of the National Institute of Child Health and Human Development’s Unit on Reproductive Endocrinology and Infertility, explains results of the study, “The Economic Annual Cost of Uterine Leiomyomata in the United States.” … Uterine leiomyomas Fifty percent of women in the United States develop […]
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How Often Should Women Have Bone Tests? Experts recommend that older women have regular bone density tests to screen for osteoporosis. But it’s been unclear how often to repeat the tests. A study of nearly 5,000 women now reports that patients with healthy bone density on their first test might safely wait 15 years before […]
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Manganese May Prevent Toxin Damage A new study suggests that manganese, an essential nutrient, may prevent the deadly effects of Shiga toxin. The finding may lead to cheap, effective treatments for dangerous foodborne Shigella or E. coli infections, which currently affect millions worldwide. Foodborne illness is often caused by bacteria that contaminate raw foods. To healthy people, most of […]
Looking Inside Viruses Since the discovery of the microscope, scientists have tried to visualize smaller and smaller structures to provide insights into the inner workings of human cells, bacteria and viruses. Now, researchers have developed a new way to see tiny structures within viruses. Conventional cryo-electron microscopy (cryo-EM) has allowed researchers to image the surface […]
Body Produces “Industrial” Lubricant for Metal Hip Implants A lubricating layer made of graphitic carbon naturally forms in the joints of metal-on-metal hip implants, a new study shows. This solid layer, produced within the body, is more like an industrial lubricant than joint fluid. The finding may help researchers design longer-lasting metal-on-metal hips for treating […]
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Researchers Find Cause of Rare Immune Disease NIH scientists have identified a genetic mutation that causes cold temperatures to trigger allergic reactions—a condition called cold urticaria. In addition to pointing the way toward a potential cure, this finding will help shed light on how the immune system functions. Cold urticaria in an allergic disease in […]
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New Insights Into Old Anti-Fungal Drug For more than 50 years, doctors have used the drug Amphotericin B (AmB) to treat systemic fungal infections. In a new study, researchers revealed a novel mode of action for the drug. Their findings could lead to safer and more effective anti-fungal medications. For people with compromised immune systems—such […]
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Most Stillbirths Caused by Placental, Pregnancy Conditions Half of all stillbirths result from pregnancy disorders and conditions that affect the placenta, according to a new report. Risk factors already known at the start of pregnancy—such as previous pregnancy loss or obesity—accounted for only a small proportion of the overall risk of stillbirth. Stillbirth is the […]
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