Hepatoprotective and antioxidant potential of Nyctanthes arbor-tristis L.

Excerpt:


J Pharm Pharmacogn Res 6(3): 205-215, 2018. Original Article | Artículo Original Hepatoprotective and antioxidant potential of Nyctanthes arbor-tristis L. leaves against antitubercular drugs induced hepatotoxicity [Potencial hepatoprotector y antioxidante de hojas de Nyctanthes Arbor-tristis L. contra la hepatotoxicidad inducida por fármacos antituberculosos] Sachin Chaudhary1, 2*, Ramesh K. Gupta2, 3, Amit Kumar4, Hamadeh Tarazi1 1College of Pharmacy, University … Continue reading Hepatoprotective and antioxidant potential of Nyctanthes arbor-tristis L.

J Pharm Pharmacogn Res 6(3): 205-215, 2018.

Original Article | Artículo Original

Hepatoprotective and antioxidant potential of Nyctanthes arbor-tristis L. leaves against antitubercular drugs induced hepatotoxicity

[Potencial hepatoprotector y antioxidante de hojas de Nyctanthes Arbor-tristis L. contra la hepatotoxicidad inducida por fármacos antituberculosos]

Sachin Chaudhary1, 2*, Ramesh K. Gupta2, 3, Amit Kumar4, Hamadeh Tarazi1

1College of Pharmacy, University of Sharjah, Sharjah-27272, United Arab Emirates.
2Moradabad Educational Trust Group of Institutions, Faculty of Pharmacy, Moradabad-244001, Uttar Pradesh, India.
3Sherwood College of Pharmacy, Barabanki-225001, Uttar Pradesh, India.
4College of Pharmacy, Neelkanth Group of Institutions, Meerut-250110, Uttar Pradesh, India.

*E-mail: schaudhary@sharjah.ac.ae

Abstract

Context: Nyctanthes arbor-tristis L. (Oleaceae) leaf are used in treatment of malaria, rheumatoid arthritis, chronic fever and enlargement of spleen; however, there is paucity of information on its hepatoprotective and antioxidant potential.

Aims: To evaluate hepatoprotective and antioxidant potentials of ethanolic leaf extract of Nyctanthes arbor-tristis L.

Methods: After collection and authentication of the vegetal material, ethanolic extract was collected. The combination of antitubercular drugs (isoniazid, rifampicin and pyrazinamide) was used to induce hepatotoxicity in Wistar rats. Hepatoprotective effect was evaluated at doses 125, 250 and 500 mg/kg, body weight by estimating the activities of alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP) and levels of total bilirubin (TBL). The effects on lipid peroxidation (LPO), reduced glutathione (GSH) and catalase (CAT), superoxide dismutase (SOD) were estimated. Docking study was conducted to anticipate the probable biological targets associated with its hepatoprotective effect.

Results: The plant extract dose of 500 mg/kg, body weight significantly declined the levels of AST, ALT, ALP and TBL at (p < 0.001), which is approximately corresponding to the dose of reference compound silymarin and reversed the levels of LPO, GSH, SOD, CAT as compared to silymarin dose. Histopathological studies revealed regeneration of hepatocytes. The docking results suggested that some active constituents of plant leaves potentially interact with human pregnane X receptor, human constitutive androstane receptor and the farnesoid X receptor.

Conclusions: The extract of Nyctanthes arbor-tristis L. remarkably possesses hepatoprotective and antioxidant effect and evinced its traditional claim. Future studies should be done to isolate active phytoconstituents for use in drug discovery.

Keywords: antioxidant; docking; hepatoprotective; Nyctanthes arbor-tristis.

Resumen

Contexto: Las hojas de Nyctanthes arbor-tristis L. (Oleaceae) se utilizan en el tratamiento de la malaria, artritis reumatoide, la fiebre crónica y el bazo agrandado; sin embargo, existe escasez de información sobre su potencial hepatoprotector y antioxidante.

Objetivos: Evaluar el potencial hepatoprotector y antioxidante del extracto etanol de hoja de Nyctanthes arbor-tristis L.

Métodos: Después de la colección y la autenticación del material vegetal fue realizado el extracto etanólico. La combinación de fármacos antituberculosos (isoniacida, rifampicina y pirazinamida) fue utilizada para inducir hepatotoxicidad en ratas de Wistar. El efecto hepatoprotector se evaluó en dosis 125, 250 y 500 mg/kg de peso corporal mediante la estimación de la actividad de alanina aminotransferasa (ALT), aspartato aminotransferasa (AST), fosfatasa alcalina (ALP) y los niveles de bilirrubina total (TBL). Se estimaron los efectos sobre la peroxidación lipídica (LPO), glutatión reducido (GSH), catalasa (CAT), y superóxido dismutasa (SOD). Además, se llevó a cabo un estudio de acoplamiento para anticipar los probables blancos biológicos asociados con su efecto hepatoprotector.

Resultados: La dosis de 500 mg/kg de extracto de planta disminuyó significativamente los niveles de AST, ALT, ALP y TBL (p < 0.001), que se corresponde aproximadamente a la dosis del compuesto referencia silimarina y revertió los niveles de LPO, GSH, SOD, CAT, en comparación con la dosis de silimarina. Los estudios histopatológicos revelaron regeneración de hepatocitos. Los resultados del acoplamiento sugirieron que algunos componentes activos de las hojas de la planta potencialmente interactuarán con el receptor X de pregnano humano, el receptor androstane constitutivo humano y el receptor de farnesoid X.

Conclusiones: El extracto de Nyctanthes arbor-tristis L. posee efecto hepatoprotector y antioxidante notable y valida su uso tradicional. Estudios futuros deben llevarse a cabo para aislar fitoconstituyentes activos para su uso en el descubrimiento de medicamentos.

Palabras Clave: antioxidantes; antituberculosos; hepatoprotector; Nyctanthes arbor-tristis.

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Citation Format: Chaudhary S, Gupta RK, Kumar A, Tarazi H (2018) Hepatoprotective and antioxidant potential of Nyctanthes arbor-tristis L. leaves against antitubercular drugs induced hepatotoxicity. J Pharm Pharmacogn Res 6(3): 205–215.

© 2018 Journal of Pharmacy & Pharmacognosy Research (JPPRes)

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