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Acta Nutrimenta Sinica ; (6)1956.
Article in Chinese | WPRIM | ID: wpr-550732

ABSTRACT

Forty patients who underwent sub-total gastrectomy were divided into four groups, one of them for comparison, the other three groups received 10%, 30% and 100% branched-chain amino acid (BCAA) respectively. The results showed that in BCAA-10 and BCAA-3H group, negative balance was partially corrected, but in BCAA-10 group nitrogen remained an obvious negative balance on the 3rd postoperative day. There were more than ten of plasma AA lower than preoperative day in these two groups. In BCAA-30 group, after surgery, negative nitrogen balance was significantly corrected, and changes of plasma AA had no statistic significance compared with that before operation.Creatinine of urine had no significant difference between each group.In BCAA-30 group, transferrin (Tf) was increased compared with that before operation. It is suggested that the protein synthesis is corrected but the catabolism is not restrained.BCAA may play a regulatory role in muscle protein metabolism, BCAA can serve as fuel substrate to promote synthesis and reduce breakdown of muscle protein to correct negative nitrogen balance.Application of large quantities of BCAA should be based on isotonic AA solution.

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