腺苷脱氨酶(ＡＤＡ)是一种与机体免疫系统有重要联系的核酸代谢酶类,它广泛存在于人体各组织中,尤以肝、肾、肌肉、心脏、神经组织和肠粘膜内含量最高。我们通过对94例肝病患者血清及腹水中ＡＤＡ水平测定,以探讨ＡＤＡ在细菌性腹膜炎肝硬化病变发展中的临床意义。1　材料与方 Adenosine deaminase (ADA) is a kind of nucleic acid metabolic enzyme that has an important connection with the immune system of the body. It is widely found in various tissues of the human body, especially liver, kidney, muscle, heart, nerve tissue and intestinal mucosa highest. We measured the ADA levels in serum and ascites of 94 patients with liver disease to explore the clinical significance of ADA in the development of bacterial peritonitis and cirrhosis. 1 material and side