MITIGATION OF DRUG-INDUCED HEPATOTOXICITY BY NOVEL PHENOLIC ACID-ISONIAZID MUTUAL PRODRUGS: DESIGN, SYNTHESIS, KINETICS AND BIO EVALUATION
Joint Event on International Conference on PHARMACEUTICAL CHEMISTRY & DRUG DISCOVERY & Global Congress on TOXICOLOGY AND PHARMACOLOGY
September 10-11 , 2018 | Dublin , Ireland
Suneela Dhaneshwar
Amity University, Uttar Pradesh, India
Posters & Accepted Abstracts : Asian J Biomed Pharmaceut Sci
Abstract:
Aims & Objective: To overcome hepatotoxicity caused by long term use of anti-tubercular agent isoniazid (INH), a novel hepatoprotective prodrug strategy was developed by combining INH with phenolic acids as antioxidant carriers for probable synergistic effect. Methodology: INH was conjugated with antioxidant phenolic acids through a bioreversible amide linkage using Schotten Baumann technique. Synthesized prodrugs were characterized by spectral analysis and in vitro release kinetics was studied by HPLC. Hepatoprotective potential was evaluated in male Wistar rats by performing the liver function tests, oxidative stress markers and histopathology studies. Results: Prodrugs resisted hydrolysis in acidic (pH 1.2), basic (pH 7.4) buffers and rat stomach homogenates whereas hydrolyzed significantly (56.03-88.62%) in intestinal homogenates over a period of 6h. All the prodrugs were effective in abating oxidative stress and re-establishing the normal hepatic physiology. Especially the effect of prodrugs of INH with gallic acid and syringic acid in restoring the levels of enzymes superoxide dismutase and glutathione peroxidase and abrogating liver damage was noteworthy. Conclusion: The findings of this investigation demonstrated that the reported mutual prodrugs can add safety and efficacy to future clinical protocols of tuberculosis treatment.
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