Medicine & Health

Young adults with autistic tendencies don’t often engage in social or binge drinking, but if they drink, they are slightly more likely than their peers to develop alcohol problems, according to new research from Duneesha De Alwis (right) and Arpana Agrawal at the School of Medicine.

A protein required to regrow injured peripheral nerves has been identified by researchers at Washington University School of Medicine in St. Louis. The finding, in mice, has implications for improving recovery after nerve injury in the extremities. It also opens new avenues of investigation toward triggering nerve regeneration in the central nervous system, notorious for its inability to heal.

Children with autism often have problems developing motor skills, such as running, throwing a ball or even learning how to write. But scientists have not known whether those difficulties run in families or are linked to autism. New research at Washington University School of Medicine in St. Louis by Claudia List Hilton, PhD, points to autism as the culprit.

Neuroscientists at Washington University School of Medicine in St. Louis have identified the brain cells involved in alcohol-related blackouts and the molecular mechanism that appears to underlie them. Alcohol interferes with key receptors in the brain, which in turn manufacture steroids that inhibit long-term potentiation, a process that strengthens the connections between neurons and is crucial to learning and memory. 

The largest U.S. epidemiological study of Parkinson’s disease has found that the disease is more prevalent in the Midwest and the Northeast and is twice as likely to strike whites and Hispanics as blacks and Asians. Researchers analyzed data on more than 36 million Medicare recipients.

If you’re particularly good with puzzles or chess, the reason may be in your genes. A team of scientists, led by psychiatric geneticists at the School of Medicine, has gathered the most extensive evidence to date that a gene that activates signaling pathways in the brain influences one kind of intelligence. They have confirmed a link between the gene, CHRM2, and performance IQ, which involves a person’s ability to organize things logically.

As our brains mature, we tend to use the red regions more frequently for these certain tasks, using the regions represented in blue less.Children activate different and more regions of their brains than adults when they perform word tasks, according to investigators at Washington University School of Medicine in St. Louis. Reporting in the journal Cerebral Cortex, the researchers say those changes in regional brain activity from childhood to adulthood may reflect the more efficient use of our brains as we mature.