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Understanding hypertension in African Americans proves elusive
Date:8/15/2007

asians by 32 percent, but levels for African Americans were reduced by only 8 percent. Total body fat was reduced only in Caucasians, which might be a clue to the drop in aldosterone.

The kidneys help to regulate blood pressure by changing the levels of salt and water in our body. Sometimes the kidneys reset at a higher blood pressure level if it has retained too much salt, Brown said.

While the study showed exercise did not lower aldosterone in African Americans, exercise still has many other benefits for this population, Brown said.

Exercise has the capacity to affect so many things. Its a way for the body to correct itself, he added.

Brown will continue his research in this area with a $3.5 million National Institutes of Health grant awarded earlier this year. In September, Brown will recruit African Americans with hypertension for a study on how exercise can improve the blood vessel condition. The study will also take an in-depth look at how genes can contribute to hypertension.

Solving the cause of hypertension is similar to solving a big puzzle. Each piece of the puzzle represents a contributing factor to hypertension. Each of these pieces, or possible causes of hypertension, needs to be studied in a systematic way, Brown said.


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Contact: Anna Nguyen
anna.nguyen@temple.edu
215-707-1731
Temple University
Source:Eurekalert

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