Synthesis of New Methionine Derivatives for the Treatment of Paracetamol - Induced Hepatic Injury

Authors

  • V. Sunel Organic Chemistry Department, Faculty of Chemistry, “Al. I. Cuza” University, 11 Copou Bd., 6600 Iasi, Romania
  • C. Lionte Medical Clinic, Emergency Clinic Hospital, „Gr. T. Popa”University of Medicine and Pharmacy, 16 University Street, 6600 Iasi, Romania
  • M. Popa Department of Macromolecules, “Gh. Asachi” Technical University of Iasi, 71 D. Mangeron Avenue, 6600 Iasi, Romania
  • O. Pintilie Organic Chemistry Department, Faculty of Chemistry, “Al. I. Cuza” University, 11 Copou Bd., 6600 Iasi, Romania
  • O.C. Mungiu Pharmacology–Toxicology–Algezyology Department, „Gr. T. Popa” University of Medicine and Pharmacy, 16 University Street, 6600 Iasi, Romania
  • S. Teleman Morphopathology Department, „Gr. T. Popa” University of Medicine and Pharmacy, 16 University Street, 6600 Iasi, Romania

DOI:

https://doi.org/10.18321/ectj546

Abstract

The direct pharmacological properties of amino acids and the possibility of using them as carriers for other active pharmacological substances are well known. Methionine, being able to yield the methyl group, is very important in the treatment of hepatic diseases. Paracetamol acute poisoning causes liver injury in both humans and animals. The study is designed to synthesize some new methionine derivatives and to establish a possible correlation between the new structure and the pharmacological properties. To this end, acute experimental poisoning with PanadolВ® (paracetamol) was performed while, for the treatment of liver injury caused by this compound, two original synthesis derivatives of methionine, namely N-(m-nitrobenzoyl)- L-methionine and N-(m-aminobenzoyl)-L-methionine, were used. Male Wistar rats were administered PanadolВ® (paracetamol) per oral (7500 mg/kg). N-(m-nitrobenzoyl)-L-methionine (m-NBM) 50 mg/kg and
N-(m-aminobenzoyl)-L-methionine (m-ABM) 50 mg/kg were given intraperitoneally, 30 minutes after PanadolВ® administration. Biochemical parameters such as SGOT, SGPT, serum bilirubin and glycemia were estimated to assess the liver function. PanadolВ® (paracetamol) poisoning produced an increase in serum transaminases, bilirubin and glicemia. These effects were reduced by treatment with m-NBM and especially m-ABM. These biochemical observations were supplemented by histopathological examination of liver sections. The results obtained with m-ABM were comparable with those reported on methionine, which is a recognised antidote in paracetamol poisoning.

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Published

2002-10-20

How to Cite

Sunel, V., Lionte, C., Popa, M., Pintilie, O., Mungiu, O., & Teleman, S. (2002). Synthesis of New Methionine Derivatives for the Treatment of Paracetamol - Induced Hepatic Injury. Eurasian Chemico-Technological Journal, 4(4), 285–292. https://doi.org/10.18321/ectj546

Issue

Vol. 4 No. 4 (2002)

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Articles

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