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目的 探讨不同喂养方式对新生儿必需脂肪酸水平的影响。 方法 用毛细管气相色谱法检测足月正常分娩新生儿 (母乳喂养组 16例 ,人工喂养组 12例 )脐血和出生后 14d外周静脉血中的 4种必需脂肪酸水平。 结果 母乳喂养组新生儿 14d时的血浆亚油酸 (L A)、亚麻酸 (AL A)、花生四烯酸 (AA)及廿二碳六烯酸 (DHA)水平均高于脐血水平 ,且 AA、DHA显著高于人工喂养组的同期水平。 结论 母乳是理想的天然长链多不饱和脂肪酸 (L CP)来源 ,且 w6和 w3族脂肪酸比例恰当 ,更易被婴儿吸收利用。
Objective To investigate the effects of different feeding methods on essential fatty acids in newborns. Methods The levels of essential fatty acids in umbilical cord blood and peripheral venous blood at 14 days after birth were measured by capillary gas chromatography in neonates with full term normal delivery (16 in breastfeeding group and 12 in artificial feeding group). Results The serum levels of linolenic acid (LA), linolenic acid (AL A), arachidonic acid (AA) and docosahexaenoic acid (DHA) were all higher than those of umbilical cord blood in newborns of breastfeeding group AA, DHA significantly higher than the same period of artificial feeding group. Conclusion Breast milk is an ideal source of natural long-chain polyunsaturated fatty acids (LCPs), and w6 and w3 fatty acids are in an appropriate proportion and are more easily absorbed by infants.