Impotence could be a harbinger of heart disease in some men,
according to a meta-analysis published .
But another study out today suggests heart-healthy lifestyle
changes or cholesterol-lowering drugs could have a positive effect on men's sexual
health.
Scientists have known about the link between erectile
dysfunction and heart health for years. Although unproven, a common theory is
that arteries supplying the penis with blood during erections may become
clogged earlier than those in the heart, thus providing an early warning of possible
coronary artery disease.
To investigate the connection between the two, Jia-Yi Dong
of Soochow University in Suzhou, China, and colleagues pooled data from 12
studies of impotence and heart disease involving nearly 37,000 men.
They found that men with erectile problems had a 48%
increase in their risk of developing heart disease. Those men also had higher
mortality rates than men who didn't have sexual problems.
Traditional risk factors such as smoking, obesity, diabetes
and high blood pressure didn't explain the link, the Chinese team reports in
the Journal of the American College of Cardiology.
That strengthens the case that impotence, when it isn't due
to partnership problems or other psychological issues, is a risk factor for heart
disease in its own right.
Lifestyle changes improve problems
In the other study, published in the Archives of Internal
Medicine, a review of earlier work found that both lifestyle changes and
statins appeared to improve men's erectile problems – although only a little.
Men who exercised more or were put on a Mediterranean diet
rich in whole grain, fruits, vegetables, nuts and olive oil, for instance,
reported a 2.4-point improvement on a 25-point scale of erectile problems.
Those taking statins saw a similar improvement of 3.1
points, according to Dr Bhanu Gupta and colleagues of the Mayo Clinic in
Rochester, Minnesota. The results are based on six trials with 740
participants.
While that improvement might not be meaningful for all men, the
researchers say, their findings "strengthen existing knowledge that
healthy dietary habits and increased physical activity are important components
of health to improve quality of life in men by improving sexual health".
They add that lifestyle changes appear to work, regardless
of whether men are taking sildenafil (Viagra) or not.
(Reuters Health, September 2011)
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