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SCIENCE IN THE NEWS WEEKLY

Pill Used to Treat HIV May Also Help Prevent It

U.S. drug regulators last week affirmed landmark study results showing that a popular HIV-fighting pill can also help healthy people avoid contracting the virus that causes AIDS.

In other biomedical news, researchers reported that a three-pronged strategy--to knock out renegade immune cells, replace them and revitalize other cells that make insulin--appeared to cure type 1 diabetes in seven out of 12 diabetic mice.

Doctors on a panel revising psychiatry's influential diagnostic manual have backed away from two controversial proposals that would have expanded the number of people identified as having psychotic or depressive disorders.

Elsewhere, researchers have found a set of gene mutations that seem to play a part in some cases of melanoma.

By inserting a mutated gene into cancer patients, researchers have found a way to protect them against the side effects of chemotherapy and boost their odds of surviving a particularly aggressive type of cancer, glioblastoma, a fast-growing and usually fatal brain cancer.

Finally, scientists say that psychopaths have a distinct brain structure. They reached this conclusion after scanning the brains of men convicted of murder, rape and violent assaults. The study showed that psychopaths, who are characterized by a lack of empathy, had less gray matter in the areas of the brain important for understanding other peoples' emotions.


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Latest Multimedia

VIDEO: The Promise and Peril of Drones

CummingsDrones

The automation of tasks at work and at home is just around the corner, including driving cars, piloting planes, delivering packages, and transporting weapons. Unmanned aerial vehicles are rapidly evolving to meet both society’s and the military’s needs in automation and better efficiency.
During her time as one of the first female fighter pilots in the US Navy, Dr. Missy Cummings observed that computers could take off and land a plane more precisely than humans. Because of this breakthrough and her fascination with this growing technology, she began human–drone interaction research.

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