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Effect of saturated, omega-3 and omega-6 polyunsaturated fatty acids on myocardial infarction.
MedLine Citation:
PMID:  15539308     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
Dietary fatty acids have cholesterol lowering, antiatherogenic, and antiarrhythmic properties that decrease the risk of myocardial infarction (MI). This study was designed to study the effects of various oils rich in either polyunsaturated (omega-3 or omega-6) fatty acids (PUFA) or saturated fatty acids (SFA) on the severity of experimentally induced MI. Male albino Sprague-Dawley rats (100-150 g; n = 20) were fed diets enriched with fish oil (omega-3 PUFA), peanut oil (omega-6 PUFA), or coconut oil (SFA) for 60 days. Experimental MI was induced with isoproterenol. Mortality rates; serum enzymes aspartate amino transferase; alanine amino transferase; creatine phosphokinase (CPK); lipid profiles in serum, myocardium, and aorta; peroxide levels in heart and aorta; activities of catalase and superoxide dismutase; and levels of glutathione were measured. The results demonstrated that mortality rate, CPK levels, myocardial lipid peroxides, and glutathione levels were decreased in the omega-3 PUFA treated group. Maximum increase in parameters indicative of myocardial damage was seen in the coconut oil group. These findings suggest that dietary omega-3 PUFA offers maximum protection in experimentally induced MI in comparison to omega-6 PUFA and SFA enriched diets. SFA was found to have the least protective effect.
Authors:
K Nageswari; R Banerjee; V P Menon
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of nutritional biochemistry     Volume:  10     ISSN:  0955-2863     ISO Abbreviation:  J. Nutr. Biochem.     Publication Date:  1999 Jun 
Date Detail:
Created Date:  2004-11-12     Completed Date:  2005-03-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9010081     Medline TA:  J Nutr Biochem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  338-44     Citation Subset:  -    
Affiliation:
School of Biomedical Engineering, Indian Institute of Technology, Bombay, India.
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