Academic journal article Environmental Health Perspectives

A Dose of Defense? Omega-3 Supplements Appear Protective against PM Effects

Academic journal article Environmental Health Perspectives

A Dose of Defense? Omega-3 Supplements Appear Protective against PM Effects

Article excerpt

Omega-3 polyunsaturated fatty acids, believed to lessen the risk of many chronic ailments including arthritis, cancer, heart disease, and memory loss, may also help protect the heart against certain damaging effects of air pollution. In a new study by an international team of researchers, supplementation with omega-3s was associated with significantly reduced cardiac stress caused by particulate matter less than 2.5 [micro]m in diameter ([PM.sub.2.5]) in a group of elderly individuals in Mexico City [EHP 116:1237-1242; Romieu et al.]. The study is the first to examine the effects of omega-3s on biomarkers of cellular response to the oxidative stress of air pollution.

Exposure to high levels of particulates from vehicle exhaust and industrial emissions raises the risk of hypertension, heart arrhythmia, heart attack, and stroke, with the elderly being particularly susceptible. Some of the authors had previously shown both that [PM.sub.2.5] promotes heart disease by diminishing heart-rate variability and that omega-3 supplementation could increase heart-rate variability. The current study was intended to find out how omega-3s achieve their effects.

The study population of 52 elderly nursing home residents was chronically exposed to high [PM. …

Search by... Author
Show... All Results Primary Sources Peer-reviewed

Oops!

An unknown error has occurred. Please click the button below to reload the page. If the problem persists, please try again in a little while.