Quality evaluation of Xiaojin Pills based on antiplatelet aggregation biological potency assay / 中草药

ABSTRACT

Objective: To establish a biological potency assay for Xiaojin Pills against platelet aggregation in vitro, evaluate the quality consistency of Xiaojin Pills, and screen traditioanal Chinese medicines which play the role of promoting blood circulation in Xiaojin Pills. Methods: Xiaojin Pills and ten Chinese medicines [artificial musk, Momordica cochinchinensis, Aconitum kusnezoffii, Liquidambar formosana, Boswellia carterii, Commiphora myrrha, Faeces Trogopterori, Angelica sinensis, Pheretima aspergillum, Fragrant Ink] in its formula were extracted by ultrasound in 40% methanol. The antiplatelet aggregation rate of the extract was measured by platelet aggregation meter. The platelet-rich plasma (PRP) and platelet-poor plasma (PPP) were prepared from abdominal aorta of rats. The platelet aggregation was induced by adenosine diphosphate (ADP). With sodium ferulate as a standard reference material, the biological potency of antiplatelet aggregation of Xiaojin Pills was calculated by the simplified probit principle. Results: The results showed that the biological potency of Xiaojin Pills was between 0.598 and 1.338 U/mg among different manufacturers and batches. In Xiaojin Pills group, Pheretima, Faeces Trogopterori, and Momordicae Semen had stronger inhibitory effects on platelet aggregation with inhibition rates of 70.87%, 31.83% and 67.52%, respectively. Conclusion: The quality consistency of Xiaojin Pills from different manufacturers and batches is poor, and Pheretima, Faeces Trogopterori, and Momordicae Semen may be the key drugs for Xiaojin Pills to play the role of promoting blood circulation.