-- Robert Preidt
THURSDAY, May 5 (HealthDay News) -- Even moderate levels of
arsenic in drinking water increases the risk for heart disease, a
new study suggests.
Arsenic is a naturally occuring element found in the earth's
crust. High concentrations of arsenic in groundwater pose a public
health threat to millions of people worldwide, according to the
To assess the risk from moderate exposure to arsenic,
researchers studied nearly 12,000 men and women in Araihazar,
Bangladesh, where groundwater is contaminated with arsenic.
The researchers measured arsenic levels in wells used for
drinking water by the participants, who also gave periodic urine
samples that were tested for arsenic. Participants were followed
for about 6.6 years.
The death rate from cardiovascular disease was 271 per 100,000
person years among people who drank water with moderate levels of
arsenic (12 to 864 parts per billion, or ppb), compared with 214
per 100,000 person years among people who drank water with low
levels of arsenic (less than 12 ppb).
Nearly 30 percent of the deaths among the study participants can
be attributed, in part, to moderate levels of arsenic in drinking
water, according to the researchers.
They also found that current and former smokers had a higher
risk of dying from heart disease associated with arsenic compared
with people who never smoked.
This suggests that smoking intensifies the cardiovascular
effects of arsenic exposure, even at moderate levels.
The study was published online May 5 in the
British Medical Journal.
Previous studies suggest that arsenic can induce hardening of
the arteries (atherosclerosis).
The U.S. Agency for Toxic Substances and Disease Registry has
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
Copyright © EBSCO Publishing. All rights reserved.