FRIDAY, Feb. 9 (HealthDay News) -- Drugs that block a component of vitamin B3 (also known as niacin) might help slow aging, new research suggests.

A team at the Wistar Institute in Philadelphia found that this niacin component, nicotinamide, is able to bind to a specific site on enzymes called sirtuins and inhibit their activity.

When activated, sirtuins can significantly extend the lives of many kinds of organisms, such as yeast, worms and flies. Sirtuins may also be able to control aging-related metabolic disorders, such as type 2 diabetes and obesity.

Drugs that block nicotinamide from binding to this specific site on sirtuins might activate the enzymes and boost health, the researchers say.

The study is published in the Feb. 9 issue of Molecular Cell.

"Our findings suggest a new avenue for designing sirtuin-activating drugs," senior author Ronen Marmorstein, a professor in the gene expression and regulation program at Wistar, said in a prepared statement.

"The jury is still out as to whether a drug of this kind might result in longer life in humans, but I'm equally excited by the possibility that such interventions might help counteract age-related health problems like obesity and type 2 diabetes," Marmorstein said.

More information

The U.S. National Center for Chronic Disease Prevention and Health Promotion offers advice about healthy aging for older adults.