Journal
JOURNAL OF ETHNOPHARMACOLOGY
Volume 122, Issue 1, Pages 106-116Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2008.12.004
Keywords
Bergenia ligulata; Urolithiasis; Calcium oxalate crystallization; Antioxidant; Diuretic; Animal model
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Funding
- Higher Education Commission of Pakistan
- University Research Council of the Aga Khan University, Karachi, Pakistan
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Ethnopharmacological relevance: Bergenia ligulata is widely used plant in South Asia, mainly India and Pakistan, as a traditional medicine for treatment of urolithiasis. Aim of the study: To rationalize the Bergenia ligulata use in kidney stones and to explain the underlying mechanisms. Materials and methods: The crude aqueous-methanolic extract of Bergenia ligulata rhizome (BLR) was studied using in vitro and in vivo methods. Results: BLR inhibited calcium oxalate (CaC2O4) crystal aggregation as well as crystal formation in the metastable solutions and exhibited antioxidant effect against 1,1-diphenyl-2-picrylhydrazyl free radical and lipid peroxidation in the in vitro. BLR caused diuresis in rats accompanied by a saluretic effect. In developed in male Wistar rats by adding 0.75% ethylene glycol (EG) in an animal model of urolithiasis, BLR(5-10 mg/kg) prevented CaC2O4 crystal deposition in the renal tubules. The lithogenic drinking water, treatment caused polyuria, weight loss, impairment of renal function and oxidative stress, manifested as increased malondialdehyde and protein carbonyl contents, depleted reduced glutathione and decreased antioxidant enzyme activities of the kidneys, which were prevented by BLR. Unlike the untreated animals, EG intake did not cause excessive hyperoxaluria. and hypocalciuria in BLR treated groups and there was a significant increase in the urinary Mg2+, instead of a slight decrease. Conclusions: These data indicate the antiurolithic activity in Bergenia ligulata mediated possibly through CaC2O4 crystal inhibition, diuretic, hypermagneseuric and antioxidant effects and this study rationalizes its medicinal use in urolithiasis. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
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