trans Fatty acids in human milk are inversely associated with concentrations of essential all-cis n−6 and n−3 fatty acids and determine trans, but not n−6 and n−3, fatty acids in plasma lipids of breast-fed infants
作者： Sheila M Innis , D Janette King
关键词: Animal nutrition 、 Food science 、 Fatty acid 、 Biochemistry 、 Breast milk 、 Linoleic acid 、 Unsaturated fatty acid 、 Docosahexaenoic acid 、 Chemistry 、 Arachidonic acid 、 Metabolism
摘要: BACKGROUND Human milk fatty acids vary with maternal dietary fat composition. Hydrogenated oils trans may displace cis n-6 and n-3 unsaturated or have adverse effects on their metabolism. The of trans, n-6, in breast-fed infants are unclear, although important infant growth development. OBJECTIVE We sought to determine the relations between plasma phospholipids triacylglycerols infants, identify major sources acids. DESIGN collected from 103 mothers exclusively 2-mo-old blood 62 3-d records 21 mothers. RESULTS Mean (+/-SEM) percentages were as follows: milk, 7.1 +/- 0.32%; infants' triacylglycerols, 6.5 0. 33%; phospholipids, 3.7 0.16%. Milk acids, alpha-linolenic acid (18:3n-3), arachidonic (20:4n-6), docosahexaenoic (22:6n-3) (P < 0.001), linoleic (18:2n-6) = 0.007) each related same phospholipids. inversely 18:2n-6 18:3n-3, but not 20:4n-6 22:6n-3. Fatty represented 7.7% total intake (2.5% energy); bakery products breads (32%), snacks (14%), fast foods (11%), margarines shortenings (11%). CONCLUSIONS There comparable concentrations diet, breast infants. Prepared source
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