Evaluation of fibrinolytic and antioxidant effects of Allium elburzense bulb extracts

OBJECTIVE Allium elburzense is an endemic plant of the family Amaryllidaceae that grows wild in northern Iran with some nutritional and medicinal applications. The present study was aimed to investigate the fibrinolytic and antioxidant effects of A. elburzense bulb extracts. MATERIALS AND METHODS Hydroalcoholic, aqueous, chloroformic and butanolic extracts were evaluated in this research. In vitro antioxidant assays were performed using total phenolic, DPPH, and FRAP methods. In the in vivo analysis, animals received i.p. injection of A. elburzense hydroalcoholic extract for 21 days and hydroperoxides level, FRAP value, PT and aPTT were determined in serum samples. The fibrinolytic activity of different extracts was quantitatively evaluated by measurement of clot weight. RESULTS In vitro antioxidant assay showed that A. elburzense aqueous extract had the highest DPPH scavenging and the highest total antioxidant capacity. In the in vivo assay, A. elburzense hydroalcoholic extract reduced serum hydroperoxides level and increased serum total antioxidant capacity in rats. In vitro fibrinolytic assay revealed remarkable thrombolytic activity for this plant with the highest effect for the aqueous extract. However, coagulation parameters including PT and aPTT were not affected by administration of A. elburzense hydroalcoholic extract in rats. CONCLUSION In conclusion, the results of this study revealed the potential antioxidant and fibrinolytic effects of A. elburzense bulb extracts. For developing novel thrombolytic agents, further investigations for isolation of bioactive constituents and finding the underlying mechanisms are suggested.