Bad breath may be the price to pay for warding off high blood pressure
in the lungs. According to research on rats, an ingredient in garlic
was found to prevent pulmonary hypertension, a potentially deadly
type of high blood pressure in the arteries that bring blood to
the lungs.
The magic ingredient: Allicin.
Researchers explain the garlic ingredient allicin likely prevents
pulmonary hypertension by causing the constricted blood vessels
to relax, and by preventing damage to the blood vessels.
Positive, Preventative Effects of Allicin
To determine the ingredient's preventative effects, scientists
first increased the risk of pulmonary hypertension in rats using
a drug that triggers the constriction of the arteries feeding the
lungs.
Some of the rats were given a powdered form of garlic that contained
allicin; others ate boiled garlic that was void of the ingredient
(it dissipates when exposed to heat through boiling). After three
weeks, researchers found:
High blood pressure in the lungs was prevented in the rats that
received allicin.
Rats that ate the boiled garlic developed pulmonary hypertension,
proving allicin as the key ingredient.
How Will These Findings Affect Humans?
For humans, pulmonary hypertension can lead to potentially fatal
complications in the heart and blood vessels. And while consuming
two cloves of garlic every day would equal that of the rats' dosage
in the experiment, additional research needs to be done before doctors
are able to recommend garlic to patients who have an increased risk
of pulmonary hypertension.
Forbes.com
April 3, 2005
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