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  • Title: [Expression of beta 2-adrenoceptor on peripheral lymphocyte and the level of plasma cAMP in patients with pregnancy induced hypertension].
    Author: Zhang L, Chen M, Zhang W.
    Journal: Zhonghua Yi Xue Za Zhi; 2000 Oct; 80(10):753-5. PubMed ID: 11372371.
    Abstract:
    OBJECTIVE: To evaluate the alteration of beta 2-adrenoceptor-cAMP system in patients with pregnancy-induced hypertension (PIH). METHODS: The Bmax of beta 2-adrenoceptor on the lymphocyte was examined by radioligand binding technique. The level of plasma cAMP was observed by radio competitive protein binding assay. RESULTS: The Bmax of beta 2-adrenoceptor (259 fmol/10(6) cell +/- 22 fmol/10(6) cell) on the lymphocytes was significantly higher in PIH group than in control group (247 fmol/10(6) cell +/- 23 fmol/10(6) cell). There was no significant difference between the PIH group and the controls. The content of plasma cAMP (2.94 nmol/40 microliters +/- 0.91 nmol/40 microliters) was significantly higher in PIH group than in control group (0.19 nmol/40 microliters +/- 0.05 nmol/40 microliters). CONCLUSION: The mechanism of PIH may be related with the activity of beta 2-adrenoceptor-cAMP system.
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