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KMID : 1161420140170020189
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Journal of Medicinal Food
2014 Volume.17 No. 2 p.189 ~ p.197
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Unsaturated Fatty Acids, Desaturases, and Human Health
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Lee Hyung-Jae
Park Woo-Jung
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Abstract
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With the increasing concern for health and nutrition, dietary fat has attracted considerable attention. The composition of fatty acids in a diet is important since they are associated with major diseases, such as cancers, diabetes, and cardiovascular disease. The biosynthesis of unsaturated fatty acids (UFA) requires the expression of dietary fat-associated genes, such as SCD, FADS1, FADS2, and FADS3, which encode a variety of desaturases, to catalyze the addition of a double bond in a fatty acid chain. Recent studies using new molecular techniques and genomics, as well as clinical trials have shown that these genes and UFA are closely related to physiological conditions and chronic diseases; it was found that the existence of alternative transcripts of the desaturase genes and desaturase isoforms might affect human health and lipid metabolism in different ways. In this review, we provide an overview of UFA and desaturases associated with human health and nutrition. Moreover, recent findings of UFA, desaturases, and their associated genes in human systems are discussed. Consequently, this review may help elucidate the complicated physiology of UFA in human health and diseases.
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KEYWORD
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dietary fat-associated genes, fatty acid desaturase (FADS), health and development, monounsaturated fatty acids, polyunsaturated fatty acids, stearoyl-CoA desaturase (SCD)
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