摘要
白蛋白对低血容量患者可迅速扩容,并能维持稳定的血浆胶体渗透压。但是,当疾病引起毛细血管通透性增大时,白蛋白可能不起作用或起反作用。由于白蛋白的半衰期长,且必须分解成氨基酸才能被机体利用,而所含必需氨基酸种类较少,故其营养价值有限。但是,白蛋白能提高严重低蛋白血症患者接受肠内营养时的肠道耐受性。
Albumin can quickly expand fluid and maintain a stable plasma colloid osmotic pressure in patients with hypovolemia. However, when various diseases cause the increase of the permeability of capillaries, albumin may not play such a role or even counteract. Considering the facts that albumin has a long half-life in human body, that it can be used only when it metabolizes into amino acids, and that it contains limited number of essential amino acids, its nutrition value is limited. However, albumin can improve the gut tolerance when patients with severe hypoalbuminemia undergo enteral nutrition supports.
出处
《中国临床营养杂志》
2007年第5期315-318,共4页
Chinese Journal of Clinical Nutrition
关键词
白蛋白
低蛋白血症
营养治疗
albumin
hypoproteinemia
nutritional therapy
