Medicine

Some forms of the drug ranitidine—including Zantac—have been shown to contain low levels of NDMA, which causes cancer in rats

Inactivating this protein in human cells and mice provided immunity to a range of viruses, but an effective treatment is still a long way off

Wild animals that live near humans have higher cholesterol than their rural counterparts—and our food could be to blame. Christopher Intagliata reports. 

Taking megadoses of vitamins can be risky, as a recent study shows

An analysis of dozens of studies found that women taking the therapy remain at a higher risk for more than a decade after stopping use

A. James Hudspeth, winner of the 2018 Kavli Prize in Neuroscience, spoke with Scientific American editor emerita Mariette DiChristina about his efforts to regenerate lost or damaged inner-ear cells that make hearing possible. They also discussed the cultural cohesion of the deaf community and why, for its members, the lack of aural communication is not a problem requiring a solution.

Two new vaccines are in development, but it has taken researchers two decades to get this close

The three-drug regimen cures 90 percent of people who have the deadliest form of the disease

A genetic therapy that increases or lowers levels of a protein raises hopes for a treatment for neurological disorders

People who receive either therapy soon after infection have a 90 percent survival rate, a clinical trial finds

Nearly half of bacteria gathered in public settings around the city were resistant to two or more commonly used antibiotics, such as penicillin and erythromycin. Christopher Intagliata reports.

Principles of evolution and natural selection drive a radical new approach to drugs and prevention strategies