目的：探讨血浆P物质水平变化与强直性脊柱炎发病的关系方法：采用放射免疫分析法。

Objective: To study the change of substance Plevel in plasma and its relationship with ankylosing spondylitis. Methods: Radioimmunoassay.

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方法：采用放射免疫分析法和硝酸还原酶法测定20例HIE新生儿和20例正常新生儿血浆et与血清NO水平。

Methods: Plasma et levels were determined by using a radioimmunoassay kit, serum no levels were determined by using a nitrate reductase method in 20 newborn with HIE and 20 normal newborn.

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方法收集了26例COPD、20例哮喘和12例健康者的血浆及诱导痰标本，采用放射免疫分析法检测SP的浓度。

Method Plasma and sputum samples were obtained from 26 COPD patients and 20 asthmatic patients as well as 12 healthy subjects for measurement of sp content.

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