associated with burning coal, dust, vehicle exhaust and can significantly increase the risk of developing high blood pressure, says a new study published in the journal Hypertension .
Beware! Air pollution can raise your blood pressure
“In our analysis of 17 previously published studies we found a significant risk of developing high blood pressure due to exposure to air pollution,” said Tao Liu, lead author of the study and associate director and epidemiologist in the division of health environmental in the Guangdong provincial Institute of Public Health of china.
“Air pollution can lead to the development of hypertension through inflammation and oxidative stress, which can cause more changes in the arteries. “
“People should limit their exposure on days with higher pollution levels, especially for people with high blood pressure, even very short-term exposure can aggravate their condition.”
The researchers conducted a meta-analysis of published studies available worldwide assessment of the health effects of all air pollution in the risk of hypertension. Meta-analyzes the results of previous studies to estimate the overall effect of a given variable on an outcome are combined. In the first study to simultaneously estimate the effects of exposure to short-term and long-term atmospheric pollutants on hypertension by the meta-analysis, the researchers focused on these air pollutants:
The meta-analysis found that high blood pressure was significantly associated with:
For part of the study assessed the short-term effects of ozone and carbon monoxide exposure, no significant associations were found. The researchers said that ozone and linkages carbon monoxide to high blood pressure requires further study
Of the 5,687 studies on pollution initially identified air, 17 were the focus of this -., Which involves more than 108,000 patients with hypertension and 220,000 non-hypertensive controls. High blood pressure is defined as greater than 140 mmHg systolic and / or diastolic blood pressure above 90 mm Hg or use of antihypertensive drugs. exposure to air pollution was assessed by averaging the data from monitoring stations nearest pollution air, or using complex dispersion models or models of land use regression.
Hypertension is a major risk factor for cardiovascular disease and stroke.
Previous studies have indicated that air pollution could be a risk factor for hypertension, but the results are controversial, Liu said. The mechanism by which air pollution may contribute to the development of hypertension involving inflammation and oxidative stress, which can lead to changes in the arteries.
“Then planned to deepen the effects of particles and their sources in the risk of hypertension, which we hope will inform control air pollution policy makers,” Liu said.
This article was originally published on medindia.net
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