The content of ET-1 in CSF and plasma was detected by immunoradioactivity and the content of NO in CSF and serum was measured by activated cadmium reduction method.

采用放免法测定血浆和脑脊液中内皮素-1（ET-1）含量，镉粒还原法测定血清和脑脊液中一氧化氮（NO）含量。

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Results 1) The concentrations of ET-1 in serum and hepatic tissue in portal hypertensive rats were significantly higher than that in normal control and sham-operated ones (P<0.01).

结果①门静脉高压症大鼠血浆和肝组织ET 1含量显著高于正常对照组和假手术组（P< 0 0 1） ；

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