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GLUTAMINE AND CHOLECYSTOKININ IN PREVENTION OF CHOLESTASIS DURING TOTAL PARENTERAL NUTRITION
Author(s): 
Pages: 76-78
Year: Issue:  2
Journal: CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY

Keyword:  完全胃肠外营养胆汁淤积谷氨酰胺胆囊收缩素;
Abstract: 目的探讨谷氨酰胺(GLN)和胆囊收缩素(CCK)在完全胃肠外营养(TPN)期间预防胆汁淤积的作用.方法用白兔制成TPN模型,随机分成4组,每组10只,即Ⅰ组(TPN组),Ⅱ组(TPN+GLN组),Ⅲ组(TPN+CCK组),Ⅳ组(TPN+GLN+CCK组).分别在第4周和第8周时检测动物胆汁成分,并用光镜和电镜观察肝、胆组织结构变化.结果Ⅰ、Ⅱ组早期出现直接胆红素及胆固醇升高,Ⅲ组于晚期升高,Ⅳ组正常.肝、胆组织结构变化,Ⅰ、Ⅲ组早期出现改变,且逐渐加重,Ⅱ组晚期出现轻度改变,Ⅳ组正常.结论 TPN时间越长,胆汁淤积越重; GLN虽无直接收缩胆囊作用,但它可保护胆囊壁组织结构完整,而CCK虽有收缩胆囊、减轻胆汁瘀积作用,但晚期当胆囊壁组织结构破坏时,其作用减弱; 联合应用GLN和CCK可能是预防TPN期间胆汁瘀积的一种方法.
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