Fish Oil Fights Pollution-Linked Heart Trouble
Posted on: Tuesday, 20 December 2005, 03:00 CST
HealthDay News -- Fish oil may help counter air pollution-linked changes in heart function, a new study suggests.
Pollution exposure can affect heart rate variability, a measure of the autonomic nervous system's regulation of the heart. Heart rate variability is an independent risk factor for cardiac arrhythmias, heart attack and sudden death.
But a study in the December issue of the American Journal of Respiratory and Critical Care Medicine has found that a daily two-gram fish oil supplement prevented a decline in heart rate variability in 26 elderly people, aged 81 to 83.
The study participants, all residents of a Mexico City nursing home, took the fish oil supplements for six months. A control group of 24 nursing home residents took soy oil supplements.
"In this randomized, controlled trial, fish oil supplementation prevented the reduction in heart rate variability associated with the same-day exposure to indoor particulate matter," researcher Dr. Fernando Holguin of the U.S. Centers for Disease Control and Prevention, said in a prepared statement.
"In contrast, soy oil, our comparison supplementation of plant-derived polyunsaturated fatty acids, was associated with a marginal, nonsignificant protection from the effects of particulate matter on heart rate variability," Holguin said.
He and his colleagues said larger studies are needed to confirm their results.
"Fish oil as a source of omega-3 polyunsaturated fatty acids could be considered as a potential form of preventive measure to reduce the risk of arrhythmia and sudden death in elderly subjects exposed to ambient air pollution," Holguin said.
More information
The Heart Rhythm Society has more about arrhythmias.
SOURCE: American Thoracic Society, news release, Dec. 15, 2005~HRTW~~HNUT~~AGNG~~HATT~~APOL~
Source: HealthSCOUT
Related Articles
- American Heart Association Late-Breaking Clinical Trial Report: Study Finds no Significant Cardiovascular Differences Between More Aggressive or Restrictive Post-Operative Treatment of Anemia
- Oil Companies' Tax Rates at Issue
- Englewood Hospital Among Top Three Hospitals Nationwide for Heart Attack Patient Survival Rate
- Merck's Investigational Rolofylline Associated With Improved Dyspnea and Preserved Renal Function in Acute Heart Failure Patients in a Phase III Pilot Study
- Climate Variability, Fish, and Fisheries
- Vanderbilt Enrolling Heart Failure Patients in New Pacing Device Study
- Eating fish regularly delays dementia: study
- Childhood Cancers Linked to Pollution, Claims Study 'INCREASED RISK'
- Restoring Flow to All Blocked Areas of the Heart Improves 5-year Survival Rate, Study Says
- Fending Off Dementia; Controlling Heart Risk in Midlife May Delay Alzheimer's, Study Finds
 |
 |
User Comments (0)
RSS Feeds