title: Screening of anti-platelet aggregation agents from Panax notoginseng using human platelet extraction and HPLC-DAD-ESI-MS/MS.
abstract: Root of Panax notoginseng (Sanqi in Chinese) is a highly valued and commonly used Chinese medicine. It has been widely used for treatment of cardio- and cerebro-vascular diseases. In this study, a method involving human platelet extraction and HPLC-DAD-ESI-MS/MS was developed for screening potential anti-platelet aggregation agents in Sanqi. Five compounds which could interact with human platelets were found, and four were identified as adenosine, guanosine, ginsenoside Rh1, and ginsenoside F1, respectively. The effects on rabbit platelet aggregation induced by arachidonic acid, adenosine diphosphate, and thrombin were also investigated in vitro. The results showed that the nucleosides adenosine and guanosine mainly contributed to the anti-platelet aggregation of Sanqi. The data suggest that human platelet extraction combined with HPLC-DAD-ESI-MS/MS is a useful method for screening anti-platelet aggregation agents from Chinese medicines.
authors.affiliation: Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.forename: Zhao-Gang
authors.initials: ZG
authors.lastname: Huang
authors.forename: Hui
authors.initials: H
authors.lastname: Cao
authors.forename: Yi-Tao
authors.initials: YT
authors.lastname: Wang
authors.forename: Ping
authors.initials: P
authors.lastname: Hui
authors.forename: Chai
authors.initials: C
authors.lastname: Hoo
authors.forename: Shao-Ping
authors.initials: SP
authors.lastname: Li
mesh_terms: D002457:Cell Extracts; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D004353:Drug Evaluation, Preclinical; D006801:Humans; D015394:Molecular Structure; D005894:Panax / Q000737:chemistry*; D010974:Platelet Aggregation / Q000187:drug effects*; D010975:Platelet Aggregation Inhibitors / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D002457:Cell Extracts; D010975:Platelet Aggregation Inhibitors