ABSTRACT
Object To observe the effect of total flavones isolated from Metasequoia glyptostroboides Hu et Cheng (FMG) on platelet aggregation, 5 HT of release, content of NO in plasma and hemorrheological parameters in rats. Methods Platelet aggregation was quantified by turbidimetry, release of 5 HT was assayed by fluorescence technique, and content of NO in plasma was determined by spectrophotometry. Results Inhibition of platelet aggregation and release of 5 HT, increase of NO content in plasma, as well as decrease of whole blood viscosity, plasma viscosity, red cell electrophoresis time, red cell specific volume, red cell count and K value in ESR equation were observed in the acute blood stasis rat, thereby the rat's hemorrheological properties were improved. Conclusion FMG is able to inhibit the platelet aggregation and improve the hemorrheological parameters in acute blood stasis rat. The inhibition of release of 5 HT, increase of NO content in plasma and antagonistic action of Ca 2+ may be the mechanism of its actions.
ABSTRACT
AIM: To study the blood quickening and stasis dispelling effect of the different processed products of Rhizoma Curcumae by rat's platelet aggregation in vivo and its hemorrheological properties and blood coagulation. METHODS: The platelet aggregation determination, hemorrheological properties determination and mice blood coagulation method were used to observe the blood quickening and stasis dispelling effect of the different processed products of Rhizoma Curcumae. RESULTS: The different processed products of Rhizoma Curcumae all had some inhibition on platelet aggregation, anticoagulation and improvement on the hemorrheological parameters. Among all of them, the processed product with vinegar was the most strong. CONCLUSION: In traditional processes, pharmacological test shows that Rhizoma Curcumae processed with vinegar has the best effects.