妊娠高血压综合征及妊娠期糖尿病孕妇血小板功能状态的研究

目的　探讨妊娠高血压综合征 (妊高征 )及妊娠期糖尿病孕妇血小板功能状态和血小板活化情况。方法　选择妊娠晚期中度妊高征孕妇 2 1例 (妊高征组 ) ,妊娠期糖尿病孕妇 2 3例 (妊娠期糖尿病组 ) ,正常妊娠晚期妇女 2 0例 (对照组 )作为研究对象。采用血细胞分析仪和流式细胞术观察3组孕妇血小板计数、血小板平均容积和血小板α 颗粒膜蛋白 (CD6 2P)的表达。结果　 (1)妊高征组孕妇血小板计数为 (181± 5 6 )× 10 9/L ,妊娠期糖尿病组孕妇为 (2 0 6± 6 0 )× 10 9/L ,对照组孕妇为 (2 2 9± 5 6 )× 10 9/L。妊高征组孕妇血小板计数显著低于对照组 ,两组比较 ,差异有统计学意义 (P <0 0 1) ;妊娠期糖尿病组与对照组比较 ,差异无统计学意义 (P >0 0 5 )。 (2 )妊高征组孕妇的血小板平均容积为 (11 2± 2 0 )fl,妊娠期糖尿病组孕妇为 (9 5± 1 6 )fl,对照组孕妇为 (8 7± 1 6 )fl,妊高征组血小板平均容积高于对照组 ,两组比较 ,差异有统计学意义 (P <0 0 0 1)。而妊娠期糖尿病组血小板平均容积与对照组比较 ,差异无统计学意义 (P >0 0 5 )。 (3)妊高征组孕妇阳性血小板百分比CD6 2P(% )为 (42± 13) %、阳性血小板荧光强度 [CD6 2P(I) ]为 10 9± 39,妊娠期糖尿病组孕妇血小板CD6 2P为 (42± 14 ) %

Study on the variation of platelet function in pregnancy induced hypertension and gestational diabetes mellitus

OBJECTIVE: To investigate the platelet activity and function in pregnancy induced hypertension (PIH) and gestational diabetes mellitus (GDM). METHODS: Twenty-one patients with GDM and 23 patients with PIH in third-trimester were included. Twenty normal pregnant women in third-trimester served as controls. Platelet count (PC), mean platelet volume (MPV) were determined on Cell-DYN 1600 and the expression of CD62P was analyzed on FACSC alibur. RESULTS: (1) PC was (181 +/- 56) x 10(9)/L in PIH, (206 +/- 60) x 10(9)/L in GDM and (229 +/- 56) x 10(9)/L in controls, respectively. PC in PIH was lower than that of controls (P < 0.01), but there was no significant difference between GDM and controls. (2) MPV was (11.2 +/- 2.0) fl in PIH, significantly higher than that of controls (8.7 +/- 1.6) fl (P < 0.001). In GDM, MPV was (9.5 +/- 1.6) fl, without significant difference compared with that of controls. (3) The expression of CD62P increased significantly in PIH compared with controls [CD62P: (42 +/- 13)% vs (26 +/- 7)%, P < 0.001; CD62P(I): 109 +/- 39 vs 75 +/- 13, P < 0.01]. In GDM, the expression of CD62P also increased significantly compared with the normal pregnancy [CD62P(%): (42 +/- 14)% vs (26 +/- 7), P < 0.001; CD62P(I): 100 +/- 42 vs 75 +/- 13, P < 0.05]. (4) All parameters had no significant difference between PIH and GDM. CONCLUSION: Platelet activity is enhanced in PIH and GDM. It may play an important role in the pathogenesis and development of the two diseases.