Medicine & Health

The Food and Drug Administration (FDA) has approved for testing in people a nanoparticle-based imaging agent jointly developed at the School of Medicine and collaborating institutions. The imaging agent may illuminate dangerous plaque in arteries, and doctors hope to use it to identify patients at high risk of stroke.

Inflammatory bowel diseases are associated with a decrease in the diversity of bacteria in the gut, but a new study led by researchers at the School of Medicine has linked these same illnesses to an increase in the diversity of viruses.

A new tool kit for dissemination and implementation, developed by the Patient-Centered Outcomes Research Institute in Washington, D.C., prominently features the work of several university faculty members, including the groundbreaking 2012 book, “Dissemination and Implementation Research in Health: Translating Science to Practice.”

Analyzing every marijuana-related Twitter message sent during a one-month period in early 2014, researchers at the School of Medicine have found that the “Twitterverse” is a pot-friendly place. In that time, more than 7 million tweets referenced marijuana, with 15 times as many pro-pot tweets sent as anti-pot tweets.

Herbert W. Virgin IV, MD, PhD, the Edward Mallinckrodt Professor of Pathology and Immunology and head of the Department of Pathology and Immunology, has received several multiyear grants.

Using Washington University’s state-of-the-art zebrafish facility, scientists have identified a gene that helps regulate how well nerves of the central nervous system are insulated. The finding may have implications for human diseases such as multiple sclerosis, in which this insulation is lost.

Scientists, led in part by Washington University’s Vitaly Klyachko, PhD, have gained new insight into fragile X syndrome — the most common cause of inherited intellectual disability — by studying the case of a person without the disorder, but with two of its classic symptoms.

Samuel Achilefu, PhD, of the School of Medicine has won the St. Louis Award for 2014 for his work in creating cancer-visualizing glasses, which were used in surgeries for first time last year. He is the 87th person honored with the annual award since it was established in 1931.

It’s normal for a young child to have tantrums and be otherwise disruptive, but researchers have found that if such behavior is prolonged or especially intense, the child may have conduct disorder, a childhood psychiatric problem that could be a harbinger of antisocial behavior. The research was led by Joan L. Luby, MD (shown).

Depression and behavioral changes may occur before memory declines in people who will go on to develop Alzheimer’s disease, according to new research at the School of Medicine led by senior author Catherine M. Roe, PhD.