Cong-Hui Yao in the Patti Lab

Challenging an old idea

For more than 80 years, scientists have thought that cancer cells fuel their explosive growth by soaking up glucose from the blood, using its energy and atoms to crank out duplicate sets of cellular components. But is this really true? Work in a metabolomics laboratory at Washington University in St. Louis suggests not.

Fat signals control energy levels in the brain

An enzyme secreted by the body’s fat tissue controls energy levels in the brain, according to new research led by Shin-ichiro Imai, MD, PhD, of the School of Medicine. The findings, in mice, underscore a role for the body’s fat tissue in controlling the brain’s response to food scarcity, and suggest there is an optimal amount of body fat for maximizing health and longevity.

Not all obese people develop metabolic problems linked to excess weight​​​​

New research demonstrates that obesity does not always go hand in hand with metabolic changes in the body that can lead to diabetes, heart disease and stroke. Washington University School of Medicine researchers found that a subset of obese people do not have common metabolic abnormalities associated with obesity, and they don’t develop them when they gain more weight.​

Resveratrol falls short in health benefits

Resveratrol, an ingredient in red wine thought to improve insulin sensitivity, reduce risk of heart disease and increase longevity, does not appear to have those benefits in healthy women, according to new research from Washington University School of Medicine in St. Louis.

Protein may play role in obesity, diabetes, aging

Researchers at Washington University School of Medicine in St. Louis, led by Philip Stahl, PhD, professor of cell biology and physiology have identified a potent regulator of sensitivity to insulin, the hormone that controls blood sugar levels. The new findings may help scientists find better treatments for type 2 diabetes, obesity and other health problems caused by the body’s inability to properly regulate blood sugar.

Restricting calories lowers body temperature, may predict longer lifespan

Nutrition and longevity researchers, including Luigi Fontana, MD, PhD, have found more evidence that eating less may help people live longer. They report that individuals who significantly reduce their calorie intake have lower core body temperatures. Mice and rats consuming fewer calories also have lower core body temperatures, and they live significantly longer than littermates eating a standard diet. 

Aging and longevity tied to specific brain region in mice

The protein SIRT1 in the brain is tied into a mechanism that allows animals to survive when food is scarce, according to a new study at Washington University School of Medicine in St. Louis. The research suggests that SIRT1 may be involved with the life span-increasing effect of low-calorie diets, they report.
Older Stories