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我们运用NADPH一黄递酶组织化学染色法并结合光、电镜观察门静脉高压症患者脾脏及脾静脉壁一氧化氮台酶（NOS）的分布，以探讨一氧化氮（NO）与门静脉高压症发病机制的关系及其临床意义。资料与方法：（l）临床资料：实验组病例取自1998年8月一1999年1月在本院外科治疗的门静脉
We use NADPH a diaphorase histochemical staining combined with light and electron microscopy portal hypertension patients with splenic and splenic wall of nitric oxide nitrogen enzyme (NOS) distribution to explore the nitric oxide (NO) and portal hypertension Mechanism and its clinical significance. Materials and Methods: (l) Clinical data: The experimental group was collected from the surgical treatment of portal vein in our hospital from August 1998 to January 1999