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11.01.2017 | Original Article | Ausgabe 1/2017

Inflammopharmacology 1/2017

Anti-inflammatory effect of Naravelia zeylanica DC via suppression of inflammatory mediators in carrageenan-induced abdominal oedema in zebrafish model

Zeitschrift:
Inflammopharmacology > Ausgabe 1/2017
Autoren:
Sanmuga Priya Ekambaram, Senthamil Selvan Perumal, Selvaranjani Pavadai

Abstract

The traditional herbal medicines are receiving great importance in the health care sector, especially in Indian system of medicine, i.e, Ayurveda. The present study focused on the standardization of Naravelia zeylanica (L.) DC in terms of its active phytochemicals and to evaluate the anti-inflammatory activity of ethanol extract of N. zeylanica (ENZ). An analytical method was developed by high-performance liquid chromatography for simultaneous determination of β-sitosterol, lupeol and oleanolic acid in ENZ. The cell viability of ENZ was investigated using MTT assay. IC50 value of ENZ on cell viability was found to be 653.01 µg/mL. To determine the anti-inflammatory activity of ENZ by in vitro method, LPS was added to the macrophage cells to induce activation and ENZ was further added to observe the recovery of inflamed cells. These cells when treated with ENZ, the percentage of viable cells were considerably increased to 74.68%. Loss of mitochondrial membrane potential on treatment with LPS and its recovery by ENZ was studied and found that the number of cells that were damaged on treatment with ENZ + LPS was comparatively lesser than treatment with LPS only. An in vivo anti-inflammatory study was carried out in carrageenan-induced abdominal oedema method in adult zebrafish which revealed the percentage inhibition of inflammation at graded dose levels of ENZ as 23.5% at 100 mg/kg, 62.4% at 200 mg/kg and 87.05% at 350 mg/kg when compared with standard of diclofenac which showed 85% inhibition at 100 mg/kg. The PCR amplification of DNA extracted from adult zebrafish showed that increased concentration of ENZ considerably downregulates the expression of TNF-α and iNOS, the mediators of inflammation.

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