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Mayo Clinic Proceedings: November highlights
Date:11/2/2010

The November issue of Mayo Clinic Proceedings includes three articles with leading research, highlighted below.

Khat Chewing Increases Risk of Stroke and Death in Patients With Acute Coronary Syndrome

ROCHESTER, Minn. -- Researchers found that people who chew khat and present with acute coronary syndrome had significantly higher rates of death, cardiogenic stroke, and stroke complications, despite having lower cardiovascular risk profiles.

"The leaves of khat, a leafy green shrub, are chewed habitually for euphoric and stimulating effects. The main ingredients, cathinone and cathine, are structurally related to amphetamine and ecstasy," says lead author Waleed Ali, M.D., from Hamad General Hospital in Doha, Qatar. An estimated 5 million to 10 million people worldwide chew khat, predominantly those living in the horn of Africa and the Arabian Peninsula, according to an editorial written by Farrah Mateen, from Johns Hopkins University in Baltimore, and Gregory Cascino, M.D., from the Department of Neurology at Mayo Clinic. They further state that Khat is illegal in the United States, and is not currently an accepted form of medical treatment.

Dr. Ali says, "Patients of Eastern African and Yemeni origins should be evaluated and counseled about khat chewing, even when living in Western countries."


Are Energy Beverages Safe to Drink When Exercising?

ROCHESTER, Minn. -- The resurgence of exercise has been accompanied by multiple supplements, sports drinks, and energy beverages that promise to enhance performance, muscle growth, and recovery. But the question remains: Are energy beverages safe?

"One can of an energy beverage during one session of exercise is safe for most healthy individuals," says John Higgins, M.D., lead author from The University of Texas Medical School in Houston. However, he states, "excess consumption and consumption with other caffeine-containing bevera
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Contact: Rebecca Eisenman
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
Source:Eurekalert

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