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Common Blood Pressure Drugs May Help Slow Dementia

Larger message: Better cardiovascular health benefits the brain, expert says

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Those are small differences in test scores. But if they persisted over years, that could add up to a significant difference in dementia patients' rate of decline, said Dr. William Molloy, one of the researchers on the study.

Clinical trials are needed to confirm whether certain ACE inhibitors do, in fact, slow down dementia, according to Molloy, a professor of gerontology and rehabilitation at University College Cork in Ireland.

He said he does not think the benefit linked to ACE inhibitors is explained by better blood pressure control. There is animal research showing that ACE inhibitors that cross into the brain may have a stronger effect on brain functioning than ACE inhibitors that do not breach the blood-brain barrier.

One possibility, Molloy said, is that the drugs reduce inflammation in the brain.

But another expert not involved in the study urged caution. "I don't think these findings should be used in any clinical decision-making," said Dr. Jacobo Mintzer, chair of the Alzheimer's Foundation of America's medical advisory board.

"This study supports the general concept that controlling blood pressure and other cardiovascular risk factors could have an effect" on dementia progression, said Mintzer, of Roper St. Francis Healthcare in Charleston, S.C.

But he agreed with Devi that the specific medication you take for high blood pressure should be the one -- or ones -- that best rein in your numbers.

The study was funded by government and private grants; none of the researchers reports any financial conflicts of interest.

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