精氨酸(L-arginine)既是一种营养物质,又具有多种独特的生理与药理作用。对于正常成年人而言,它是非必需氨基酸;但在严重应激状态下(创伤、感染、剧烈运动、饥饿、氮负荷过重等)以及婴幼儿时期,血中精氨酸酶活性增高,精氨酸分解加速,导致其浓度不足,机体出现一系列病理生理变化 Arginine (L-arginine) is both a nutrient, but also has a variety of unique physiological and pharmacological effects. It is a non-essential amino acid for normal adults; however, arginase activity in blood is increased in severe stress conditions (trauma, infection, strenuous exercise, starvation, nitrogen overload, etc.) and in infancy Acceleration of acid decomposition, resulting in its concentration is not enough, the body appeared a series of pathophysiological changes