Arsenic, Lead Exposure may Up Heart Disease Risk

Heavy metals namely copper, lead, arsenic, cadmium may have adverse effects on health - including cardiovascular disease such as heart disease and stroke - even at lower levels of exposure

Low levels of toxic chemicals in the environment namely arsenic, lead, copper and cadmium could pose a risk to cardiovascular health, stated study. Although often naturally occurring, these contaminants have made their way into water supplies and, //via irrigation, into the food chain.

Concern has often focused on the toxicity or carcinogenic properties of the metals, particularly at high doses.

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‘New link between exposure to heavy metals or metalloids and risk of conditions such as heart disease, even at low doses has been discovered. ’

However, the findings, published by The BMJ, showed there is increasing evidence to suggest that heavy metals may have other adverse effects on health - including cardiovascular disease such as heart disease and stroke - even at lower levels of exposure, the researchers said.

"While people shouldn't be overly worried about any immediate health risk, it should send a message to policymakers that we need to take action to reduce people's exposure."

The study "reinforces the (often under-recognised) importance of environmental toxic metals in enhancing global cardiovascular risk, beyond the roles of conventional behavioural risk factors, such as smoking, poor diet and inactivity," the researchers said.

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For the study, the team conducted a meta-analysis of 37 studies involving almost 350,000 participants.

Chowdhury noted that the study highlighted the potential need for additional worldwide efforts and strategies "to reduce human exposures even in settings where there is a relatively lower average level of exposure."

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Arsenic poisoning also known as arsenicosis occurs when a person’s body contains greater than normal levels of arsenic, a semi-metallic element.

Since metals are associated with cardiovascular disease even at relatively low levels of exposure, "population-wide strategies to minimise exposure will further contribute to overall cardiovascular prevention efforts," the researchers concluded.

Source-IANS

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