October 2007 Radio Service

Listed below are this month’s featured news stories. • Bright tumors, dim prospects (week of Oct. 3) • New drugs for Parkinson’s (week of Oct. 10) • Heart disease in the mentally ill (week of Oct. 17) • Preventing plaque buildup (week of Oct. 24) • Helping children lose weight (week of Oct. 31)

Obese children show early signs of heart disease

Children who are obese or who are at risk for obesity show early signs of heart disease similar to obese adults with heart disease, a study by researchers at the School of Medicine has found. “Based on this study, these subtle markers can help us predict who could be at risk for heart disease and heart attacks,” said Angela Sharkey, M.D., associate professor of pediatrics at the School of Medicine and a pediatric cardiologist at St. Louis Children’s Hospital.

Study suggests existing drugs may be useful in treating brain tumors

Scientists have shown how developing brain tumors can turn an encounter with a signaling molecule from a fatal experience for the tumor cells into a cue for their own growth and multiplication. Researchers at the School of Medicine found the transformation relies on at least two other molecules that can be modified with existing drugs, opening the possibility that they may be able to use the established drugs to treat brain tumors.

Botanical ‘cloak-and-dagger’

Photo by David KilperThat clover necklace you make for your child could be a ring of poison. That’s because some clovers have evolved genes that help the plant produce cyanide — to protect itself against herbivores such as snails, slugs and voles. Kenneth Olsen, Ph.D., assistant professor of biology in Arts & Sciences, is looking at the genetics of a wide variety of white clover plants to determine why some plants do and some plants don’t make cyanide. Ecology and geography play important roles.
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