谷氨酰胺（Ｇｌｎ）是肠粘膜等快速生长和分化细胞的重要营养物质，近年来，Ｇｌｎ作为应激状态时的条件必需氨基酸，维持和改善肠粘膜的结构和功能已日益受到重视。本研究观察了胃肠手术后禁食患者血浆Ｇｌｎ水平的变化，并静脉输注Ｇｌｎ，通过测定患者肠道通透性以证实... Gln (Gln) is an important nutrient for rapidly growing and differentiating cells such as the intestinal mucosa. In recent years, Gln, as an essential amino acid for stress state, has been paid more attention to maintain and improve the structure and function of intestinal mucosa. This study examined the changes of plasma Gln levels in fasting patients after gastrointestinal surgery, and intravenous infusion of Gln by confirming the intestinal permeability of patients to confirm ...