支链氨基酸对卧床、鼻饲病人蛋白质代谢的影响  

EFFECTS OF BRANCHED-CHAIN AMINO ACIDS(BCAA)ON PROTEIN METABOLISM IN BEDRIDDEN AND TUBE-FEEDING PATIENTS

作　　者：薛长勇 王伟琴[1] 李溪雅[1] 李守濂[1] 崔宝印[1] 张效良[1] 

机构地区：[1]北京解放军总医院营养科

出　　处：《营养学报》1995年第3期313-316,共4页Acta Nutrimenta Sinica

摘　　要：经鼻饲管投入支链氨基酸２周以后，卧床、鼻饲病人蛋白质合成代谢增强；正氮平衡，血浆前白蛋白、运铁蛋白和视黄醇结合蛋白升高，支／芳比值上升。同时，蛋白质分解代谢下降；２４小时尿素氮下降，肌酐一身高指数上升，尿中３－甲基组氨酸水平降低。结果提示：补充支链氨基酸能改善卧床、鼻饲病人的蛋白质营养状况。rotein metabolism in bed-keeping and tube-feeding patients supple mented with BCAA for 2 weeks was investigated.Positive nitrogen balance,levels of prealburnin,transferrin,RBP and ratio of BCAA and aromatic amino acids were increased.Meanwhile,catabolic metabolism of protein was decreased,as shown by decrease of 24h urinarv urea nitrogen and3-methylhistidine,and increase of CHI,BCAA could improve nutritionalstatus of protein in tube-feeding patients。

关 键 词：支链氨基酸 鼻饲 蛋白质代谢 

分 类 号：R151.2[医药卫生—营养与食品卫生学]