谷氨酰胺(glutamine,Gln)是血液循环和组织内自由氨基酸池中含量最丰富的氨基酸,参与多种代谢必需物质的合成,并为肠粘膜和其他增生活跃的细胞(如免疫细胞)提供主要的能量[1]。但是在创伤、败血症、大手术、重症胰腺炎等严重情况下,常发生Gln的缺乏。研究表明Gln缺乏将会导致肠 Glutamine (Gln) is the most abundant amino acid in the blood circulation and the free amino acid pools in the tissues involved in the synthesis of a variety of metabolically essential substances and provides the major components of the intestinal mucosa and other proliferating cells such as immune cells Of energy [1]. But in the trauma, sepsis, major surgery, severe pancreatitis and other serious cases, the lack of Gln often occur. Studies show that lack of Gln will lead to bowel