Effect of Xiaoyu Zhixue tablet on expression of platelet membrane glycoproteins in patients with hemorrhagic thrombopathy

Objective: To observe the effect of Xiaoyu Zhixue tablet (XYZXT) on the expression of platelet membrane glycoproteins in patients with hemorrhagic thrombopathy, and to explore its possible mechanism. Methods; The total of 148 patients with hemorrhagic thrombopathy were randomly divided into two groups, the traditional Chinese medicicne (TCM) group (n = 98) treated with XYZXT and the Western medicine (WM) group (n = 50) treated with adrenosin, vitamins C, K and P, both for 6 months. The therapeutic effect and the recovery rate of platelet aggregation in the two groups were observed. And platelet membrane glycoprotein (GP) Ib/IX, GPII b/IIIa complexes, GPIb, GPIIb, GPIIIa and P-selectin were analyzed by flow cytometry in both groups before and after treatment and also in 34 normal healthy subjects.Results: The total effective rate of hemostasis was 89.8% in TCM group and 54.0% in the WM group (X2=45.83,P<0.01), and the recovery rate of platelet aggregation was 72.4% and 4.0% respectively (X2 = 62.06,P<0.01). The fluorescence intensity of GP I b/IX, GP II b/III a complexes, GPIb, GP IIIa and P-selectin were lower in both groups before treatment than those in the healthy subjects. Expression of above-mentioned marks was elevated in TCM group after 6 months’ therapy, which was insignificantly different as compared with the healthy subjects (P>0.05) and higher than those in the WM group (P<0.05).Conclusion: One of the mechanisms in treating hemorrhagic thrombopathy with XYZXT is that it could regulate the expression of GP I b/IX, GPII b/IIIa complexes, GP I b, GPIIIa and P-selectin at the level of receptor protein.