Study on Chemical Constituents of the Enriched Extracts of Erigeron multiradiatus and Antithrombotic Effect on Zebrafish

Background Erigeron multiradiatus (Lindl.) Benth. has been used for years to treat various diseases in traditional Tibetan medicine (TTM). Our previous studies have shown that E. multiradiatus extract has important pharmacological effects, such as anti-myocardial ischemia-reperfusion (I/R) injury, anti-inflammatory, and antidiabetic effects. To date, there have been no reports on using this extract to treat thrombosis. Objectives The aim of this study was to enrich the active components of E. multiradiatus and to further investigate its anti-thrombotic activity. Materials and Methods We used D101 macroporous adsorption resin to enrich the main active substances of E. multiradiatus and performed quantitative determination using ultra-high-performance liquid chromatography with a photodiode array detector (UHPLC-PDA). Furthermore, we investigated the anti-thrombotic effects of E. multiradiatus using three models: an arachidonic acid-induced platelet aggregation thrombotic zebrafish model, a phenylhydrazine-induced red blood cell (RBC)-injuring thrombotic zebrafish model, and a ponatinib-induced vascular endothelial cell (VEC)-injuring thrombotic zebrafish model. Results The yield of active component enrichment of E. multiradiatus was 4.95% using the D101 resin. We accurately determined eight compounds in the extract. Our results showed that these extracts had significant anti-thrombotic effects in the three different zebrafish models. Conclusion The enriched extract of E. multiradiatus could be used as a natural anti-thrombotic agent. Our results will provide a reference for reasonable clinical applications of E. multiradiatus.