Gout Drug May Lower Blood Pressure
Study Shows Allopurinol Helps Fight Hypertension for People on a High-Sugar Diet
WebMD News Archive
Sept. 23, 2009 -- A new study suggests a direct link between a high-sugar diet and high blood pressure, and researchers say the finding may lead to a novel way to treat hypertension.
Middle-aged men who took part in the study showed significant increases in blood pressure after eating a high-sugar diet for just two weeks unless they took the drug allopurinol, used to treat the painful inflammatory condition known as gout.
Gout is caused by the buildup of uric acid in the blood. Excessive alcohol and organ meat consumption are known to cause gout. The sugar fructose has also been shown to raise uric acid levels.
Researcher Richard Johnson, MD, and colleagues first showed that allopurinol could lower high blood pressure by lowering uric acid levels in a small study involving hypertensive preteens and teens reported last year.
Their newly published research showed the same thing in adult men, but Johnson tells WebMD that more study is needed to confirm the findings.
The research was presented in Chicago at the American Heart Association's 63rd High Blood Pressure Research Conference.
"This is the first direct study to suggest that fructose can raise blood pressure and that it is mediated by uric acid, but it is a pilot study," he says. "Allopurinol does have rare, but potentially serious, side effects. Clearly, we need more research before this drug can be recommended to lower blood pressure."