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Minimum requirements of n-3 and n-6 essential fatty acids for the function of the central nervous system and for the prevention of chronic disease.

Abstract
General behavioral patterns of rats or mice fed 5 wt% safflower oil (75% linoleate [n-6] and less than 0.1% alpha-linolenate [n-3]) for two generations were significantly different from those of animals fed 5 wt% perilla oil (15% n-6 and 55% n-3). Also, brightness-discrimination learning ability and retinal function were higher in the perilla group than in the group fed 5 wt% soybean oil (53% n-6 and 4.7% n-3) or safflower oil, indicating that the requirement of n-3 for the maximum responses of the nervous system is above 0.6 en% when there is 6.8 en% linoleate n-6. Perilla oil has been found to be beneficial for the suppression of carcinogenesis, allergic hyperreactivity, thrombotic tendency, apoplexy, hypertension, and aging in animals, as compared with soybean oil and safflower oil. These results are against a lipid peroxide theory of aging, carcinogenesis, and chronic diseases. Animal experiments and epidemiological studies lead to a recommendation that the intake of n-6 should be decreased to as low as 2-4 en% and that of n-3 be increased to levels higher than linoleate n-6 for the prevention of chronic diseases prevailing in the industrialized countries.
AuthorsH Okuyama
JournalProceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) (Proc Soc Exp Biol Med) Vol. 200 Issue 2 Pg. 174-6 (Jun 1992) ISSN: 0037-9727 [Print] United States
PMID1579578 (Publication Type: Journal Article)
Chemical References
  • Fatty Acids, Essential
Topics
  • Animals
  • Behavior, Animal (physiology)
  • Central Nervous System (physiology)
  • Chronic Disease
  • Fatty Acids, Essential (physiology)
  • Humans
  • Learning (physiology)
  • Mice
  • Neoplasms, Experimental (physiopathology)
  • Nutritional Physiological Phenomena
  • Rats

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