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为创伤、感染病人的支持疗法,研究氨基酸代谢是有意义的。研究需从正常状态时细胞 内外液中氨基酸浓度变化开始。从血浆内研究氨基酸代谢有局限性,因为血浆中氨基酸含量不到总氨基酸的1％。但由于血浆氨基酸更新(turnover)较迅速,而且较容易得到样品,仍可作为完全胃肠外营养(TPN)代谢反应研究的有意义的参数。以前因受方法学的限制,国内很少有血浆全氨基酸谱的报导,也尚无尿氨基酸排出的报告。尿中氨基酸排出量对了解
It is meaningful to study amino acid metabolism for therapies that support trauma and infection of patients. Studies need to begin with changes in amino acid concentration in the cell’s internal and external fluids during normal conditions. Amino acid metabolism from plasma is limited because less than 1% of total amino acids are present in plasma. However, since plasma amino acid turnover is faster and samples are easier to obtain, it can still be used as a meaningful parameter in the study of metabolic responses to total parenteral nutrition (TPN). Previously due to methodological limitations, few reports of plasma total amino acid spectrum, there is no report of urinary amino acid excretion. Amino acid excretion in urine to understand