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Abstract Title:

Increased alpha-linolenic acid intake lowers C-reactive protein, but has no effect on markers of atherosclerosis.

Abstract Source:

Eur J Clin Nutr. 2004 Jul;58(7):1083-9. PMID: 15220952

Abstract Author(s):

W J E Bemelmans, J D Lefrandt, E J M Feskens, P L van Haelst, J Broer, B Meyboom-de Jong, J F May, J W Cohen Tervaert, A J Smit

Abstract:

Mammalian cell viability is dependent on the supply of the essential fatty acids (EFAs) linoleic and alpha-linolenic acid. EFAs are converted into omega3- and omega6-polyunsaturated fatty acids (PUFAs), which are essential constituents of membrane phospholipids and precursors of eicosanoids, anandamide and docosanoids. Whether EFAs, PUFAs and eicosanoids are essential for cell viability has remained elusive. Here, we show that deletion of Delta6-fatty acid desaturase (FADS2) gene expression in the mouse abolishes the initial step in the enzymatic cascade of PUFA synthesis. The lack of PUFAs and eicosanoids does not impair the normal viability and lifespan of male and female fads2-/- mice, but causes sterility. We further provide the molecular evidence for a pivotal role of PUFA-substituted membrane phospholipids in Sertoli cell polarity and blood-testis barrier, and the gap junction network between granulosa cells of ovarian follicles. The fads2-/- mouse is an auxotrophic mutant. It is anticipated that FADS2 will become a major focus in membrane, haemostasis, inflammation and atherosclerosis research..

Study Type : Animal Study

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Sayer Ji
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