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虽然谷氨酰胺（Ｇｌｎ）具有许多重要的生理功能，但是由于它不稳定性及低溶解度，使其应用受到限制。Ｇｌｎ二肽克服了它的缺点，并可被机体有效分解为氨基酸而被利用且没有任何毒副作用和不良反应。本文综述了Ｇｌｎ二肽的代射及其在肠外营养中的应用，Ｇｌｎ的许多生理作用在Ｇｌｎ二肽也逐步得以证实。
Although glutamine (Gln) has many important physiological functions, its use is limited due to its instability and low solubility. Gln dipeptide overcomes its shortcomings, and can be effectively broken down into amino acids by the body to be used without any side effects and adverse reactions. This review summarizes the generation of Gln dipeptide and its application in parenteral nutrition. Many physiological functions of Gln have been gradually confirmed in Gln dipeptide.