A compound found in common foods such as red grapes and peanuts may help prevent age-related decline in memory, according to an Indian-origin researcher.

Ashok K Shetty, a faculty member in the Texas A&M Health Science Center College of Medicine, has been studying the potential benefit of resveratrol, an antioxidant that is found in the skin of red grapes, as well as in red wine, peanuts and some berries.

Resveratrol has been widely touted for its potential to prevent heart disease, and Shetty and his team believe it also has positive effects on the hippocampus, an area of the brain that is critical to functions such as memory, learning and mood.

Because both humans and animals show a decline in cognitive capacity after middle age, the findings may have implications for treating memory loss in the elderly, researchers said.

Resveratrol may even be able to help people afflicted with severe neurodegenerative conditions such as Alzheimer’s disease, they said.

In a study published in the journal Scientific Reports, Shetty and his team reported that treatment with resveratrol had apparent benefits in terms of learning, memory and mood function in aged rats.

“The results of the study were striking. They indicated that for the control rats who did not receive resveratrol, spatial learning ability was largely maintained but ability to make new spatial memories significantly declined between 22 and 25 months,” Shetty said.

“By contrast, both spatial learning and memory improved in the resveratrol-treated rats,” Shetty added.

Shetty said neurogenesis (the growth and development of neurons) approximately doubled in the rats given resveratrol compared to the control rats.

The resveratrol-treated rats also had significantly improved microvasculature, indicating improved blood flow, and had a lower level of chronic inflammation in the hippocampus.

“The study provides novel evidence that resveratrol treatment in late middle age can help improve memory and mood function in old age,” Shetty said.

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