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Revista de Nutrição

versão impressa ISSN 1415-5273


PERINI, João Ângelo De Lima et al. Omega-3 and omega-6 polyunsaturated fatty acids: metabolism in mammals and immune response. Rev. Nutr. [online]. 2010, vol.23, n.6, pp.1075-1086. ISSN 1415-5273.

Experiments with animals are very important for the improvement of science. The use of mice in experiments is due to their similarity with humans, the easy of raising and maintaining them and their very fast response. These animals have the same desaturase and elongase enzymes as humans and so they are used in research involving the incorporation and synthesis of fatty acids in tissues. The fatty acids omega-3 and omega-6 are extremely important in the human diet because they are not synthesized de novo and are precursors of very long-chain polyunsaturated fatty acids, such as the eicosapentaenoic, docosahexaenoic and arachidonic acids. These acids play important roles in animals, such as precursors of eicosanoids, which are directly involved in the immune system and inflammatory response. The dietary n-3:n-6 intake ratio is important for assessing proper fatty acid intake and for preventing the development of diseases. Thus, this article assessed the incorporation of fatty acids in animal tissues and discussed the importance of n-3 fatty acids and its metabolites for the immune system.

Palavras-chave : Polyunsaturated fatty acids; Omega-3 fatty acids; Mice; Eicosanoids.

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