Résumé
Objective: To compare the effects of Jiaoai Decoction and Siwu Decoction on hemorheology, blood coagulation function, and platelet aggregation in acute blood stasis rats, and reveal that Jiaoai Decoction evolved into Siwu Decoction could increase the efficacy of activating blood circulation and dissipating blood stasis. Methods: Ice water bath and sc injection of adrenaline were both used to establish the acute blood stasis rat model. The whole blood viscosity (WBV), plasma viscosity (PV), haematocrit (HCT), thrombin time (TT), prothrombin time (PT), activated partial thromboplastin time (APTT), plasma fibrinogen (FIB), and platelet aggregation (PAG) were detected to observe the effects of Jiaoai Decoction and Siwu Decoction on the acute blood stasis rat model. Results: Compared with the normal control group, the model group could significantly increase hemorheological indices (P < 0.01), shorten TT, PT, and APTT (P < 0.01), and increase the FIB content (P < 0.01) and platelet aggregation (P < 0.01). Compared with the model group, Siwu Decoction could significantly decrease WBV, PV, and HCT (P < 0.05, 0.01), prolong TT, APTT, and PT (P < 0.05), and reduce the content of FIB (P < 0.01) and platelet aggregation (P < 0.01). The mid-dose Jiaoai Decoction could significantly decrease WBV in 1 s-1 and HCT (P < 0.05, 0.01), prolong APTT (P < 0.05) and shorten PT (P < 0.01), and reduce the platelet aggregation (P < 0.01). Compared with mid-dose Jiaoai Decoction, Siwu Decoction could significantly prolong the TT (P < 0.01). Conclusion: Jiaoai Decoction evolved into Siwu Decoction could increase the efficacy of activating blood circulation and dissipating blood stasis. Meanwhile, the study reveals the scientific evidence for Jiaoai Decoction and Siwu Decoction in clinical application.
Résumé
<p><b>OBJECTIVE</b>To discuss the hemostasis of the different polarities of Platycladi Cacumen Carbonisatum (PCC) on the blood heat and hemorrhage syndrome rat model induced by dry yeast.</p><p><b>METHOD</b>The SD rats were divided into seven groups. Yunnan Baiyao was taken as the positive control drug. The rats in the control group and model group were fed with CMC-Na for 7 days, and the rats in other groups were fed with corresponding drugs simultaneously. On day 7, the blood heat and hemorrhage syndrome rat model was established. Indexes including the whole blood viscosity, plasma viscosity, thrombin time (TT), activated partial thromboplastin time (APTT), prothrombin time (PT), fibrinogen content (FIB), red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT), blood platelet count (PLT), thrombocytocrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW) and the rate of platelet aggregation induced by ADP were detected. Additionally, the pathological examinations of lungs among each group were compared.</p><p><b>RESULT</b>Compared with the control group, the RBC, HGB and HCT of rats in the model group increased significantly, with distinct increase in high, middle and low whole blood viscosity and plasma viscosity of rats in the model group; TT and APTT were notably prolonged, while PT was notably shortened, with significant increase in FIB content; PLT, PCT, MPV and PDW remarkably increased; Additionally, the rate of platelet aggregation induced by ADP significantly decreased. After ig administration of the ethyl acetate extract of PCC, the low whole blood viscosity and plasma viscosity remarkably decreased; TT and APTT were significantly shortened, with notable reduction in PDW and in FIB content Additionally, the rate of platelet aggregation induced by ADP significantly increased. The injury of lungs was also improved in ethyl acetate extract group. The rate of platelet aggregation induced by ADP of n-butanol extract group notablly increased. Plasma viscosity of water extract group remarkably decreased, with TT being significantly shortened. But the effects of n-butanol extract or water extract were weaker than that of ethyl acetate extract. And the effect of petroleum ether extract was the weakest.</p><p><b>CONCLUSION</b>Ethyl acetate extract is the active part of PCC, showing the effect of hemostasis by reducing the low whole blood and plasma viscosity, improving coagulation function mainly by acting on the endogenous coagulation, and ameliorating the function of platelet aggregation.</p>