Journal
MOLECULES
Volume 19, Issue 9, Pages 14567-14581Publisher
MDPI AG
DOI: 10.3390/molecules190914567
Keywords
Euphorbia hirta; chemical composition; online HPLC-ABTS(+center dot) bioassay; antioxidant; anti-inflammatory; anticancer
Funding
- Next-Generation BioGreen 21 Program [PJ009077]
- Rural Development Administration, Republic of Korea
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This study evaluated the chemical composition, antioxidant, anti-inflammatory and anticancer activities of a Euphorbia hirta L. extract. The antioxidant activities of whole E. hirta ethanol extract were determined by electron spin resonance spectrophotometric analysis of 1,1-diphenyl-2-picryl-hydrazyl (DPPH), hydroxyl, and alkyl radical levels and by using an online high-performance liquid chromatography (HPLC)-2,2'-azino-bis(3-ethylbenzothiazoline- 6-sulfonic acid) assay. The E. hirta ethanol extract (0.5 mg/mL) exhibited DPPH-scavenging activity of 61.19% +/- 0.22%, while the positive control (0.5 mg/mL ascorbic acid) had 100% +/- 0.22% activity. The concentration of the extract required to trap 50% of DPPH (IC50) was 0.205 mg/mL. Online HPLC analysis of the extract also showed strong antioxidant activity. The anti-inflammatory activity of the E. hirta extract was assessed in lipopolysaccharide-induced RAW 264.7 macrophages. The anti-inflammatory activity was highest in the presence of 200 mu g/mL E. hirta extract, and nitric oxide production was decreased significantly (p < 0.05). The extract also showed selective anticancer activity at a concentration of 100 mu g/mL (p < 0.05). These results indicated that E. hirta may warrant further investigation for the development of antioxidant, anti- inflammatory, and anticancer herbal medications.
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