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High Blood Pressure May Heighten Effects of Alzheimer's Disease
Date:11/28/2007

in the brain and greater levels of dementia.

The MRI results showed that in all patient groups blood flow in the brain was substantially decreased in patients with hypertension compared to those without. Cerebral blood flow was lowest among the Alzheimer's patients with hypertension, but the normal group with hypertension showed significantly lower cerebral blood flow than the normal group without hypertension.

"These results suggest that by changing blood flow to the brain, hypertension -- treated or untreated -- may contribute to the pathology of Alzheimer's," Raji said.

Co-authors are C. Lee, M.D., W. Dai, Ph.D., J.Becker, Ph.D., L. Kuller, M.D., H. Gach, Ph.D., et al.

AT A GLANCE

-- Hypertension reduces cerebral blood flow in people with Alzheimer's

disease.

-- Arterial spin-labeled MRI is a novel, noninvasive imaging technique

that can measure cerebral blood flow.

-- Approximately 50 million Americans have hypertension.

Note: Copies of RSNA 2007 news releases and electronic images will be available online at RSNA.org/press07 beginning Monday, Nov. 26.

RSNA is an association of more than 41,000 radiologists, radiation oncologists, medical physicists and related scientists committed to excellence in patient care through education and research. The Society is based in Oak Brook, Ill. (RSNA.org)

Editor's note: The data in these releases may differ from those in the printed abstract and those actually presented at the meeting, as researchers continue to update their data right up until the meeting. To ensure you are using the most up-to-date information, please call the RSNA Newsroom at 1-312-949-3233.


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SOURCE Radiological Society of North America
Copyright©2007 PR Newswire.
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