Journal
NATURAL PRODUCT RESEARCH
Volume 34, Issue 24, Pages 3540-3544Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2019.1582039
Keywords
Silybum marianum variety albiflorum; silyhermin; isosilandrins; cytotoxicity; hepatoprotective; oxidative stress
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Silymarin prepared from the fruits of Silybum marianum (L.) Gaertn. (Asteraceae) has long been used for the treatment of liver disorders. This study was carried out to evaluate the protective effect of the fruit extract of white-flowered S. marianum variety albiflorum Eig. (WSE) against paracetamol-induced liver toxicity in rats. Silyhermin, isosilandrins A/B were identified as the major flavonolignans in WSE. Cytotoxic activities of WSE and isolated flavonolignans compared to silymarin were carried out using sulforhodamine B assay. WSE, silyhermin and isosilandrins had no obvious harmful effect on normal human cell line compared to silymarin with IC50 values 78.95, 84.34, 72.14 and 16.83 mu g/ml, respectively. The hepatoprotective activity of WSE at dose 50 mg/kg was comparable to silymarin (100 mg/kg). These data were supplemented with histopathological studies on liver sections. The hepatoprotective effects of WSE on oxidative stress induced by administration of paracetamol are probably associated with its antioxidant properties.
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