Hepatoprotective and free radical scavenging activities of phenolic petrosins and flavonoids isolated from Equisetum arvense
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- Hepatoprotective and free radical scavenging activities of phenolic petrosins and flavonoids isolated from Equisetum arvense
- Hyuncheol Oh; D H Kim; J H Cho; Y C Kim
- Bibliographic Citation
- Journal of Ethnopharmacology, vol. 95, no. 2, pp. 421-424
- Publication Year
- Hepatoprotective activity-guided fractionation of the MeOH extract of Equisetum arvense L. (Equisetaceae) resulted in the isolation of two phenolic petrosins, onitin (1) and onitin-9-O-glucoside (2), along with four flavonoids, apigenin (3), luteolin (4), kaempferol-3-O-glucoside (5), and quercetin-3-O-glucoside (6). Among these, compounds 1 and 4 exhibited hepatoprotective activities on tacrine-induced cytotoxicity in human liver-derived Hep G2 cells, displaying EC50 values of 85.8 ± 9.3 μM and 20.2 ± 1.4 μM, respectively. Silybin, used as a positive control, showed the EC50 value of 69.0 ± 3.3 μM. Compounds 1 and 4 also showed superoxide scavenging effects (IC50 = 35.3 ± 0.2 μM and 5.9 ± 0.3 μM, respectively) and DPPH free radical scavenging effect (IC50 of 35.8 ± 0.4 μM and 22.7 ± 2.8 μM, respectively). These results support the use of this plant for the treatment of hepatitis in oriental traditional medicine.
- Phenolic petrosinsAntioxidantsEquisetum arvenseFlavonoidsHepatoprotective
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