血栓素A_2(TXA_2)、前列腺素I_2(PGI_2)对维护机体血管功能的内环境稳定具有重要意义。由于半衰期短,直接测定其在血液中的含量困难极大,故国内外均采用测定TXA_2的代谢产物TXB_2和PGI_2的代谢产物PGF_(1σ)作为检测指标。有关这两种指标的正常值尚少报道,为此我们对32例正常男性采用[~3H]放免法测定并进行探讨。 Thromboxane A 2 (TXA 2) and prostaglandin I 2 (PGI 2) are important for the maintenance of the internal environment of vascular function. Because of its short half-life and direct determination of its content in the blood is extremely difficult, so both at home and abroad are used to determine TXA2 metabolites TXB2 and PGI2 metabolites PGF1 (1σ) as a detection index. For these two indicators of the normal value is still seldom reported, so we use 32 cases of normal male [~ 3H] radioimmunoassay and to explore.