Anti-inflammatory and Antioxidant Effects of Captopril Compared to Methylprednisolone in l-Arginine-Induced Acute Pancreatitis

  • Nahla E. El-Ashmawy
  • Naglaa F. Khedr
  • Hoda A. El-Bahrawy
  • Omnia B. Hamada
Original Article
  • 44 Downloads

Abstract

Background

Acute pancreatitis (AP) is an inflammatory disease mediated by damage in acinar cells and pancreatic inflammation with infiltration of leukocytes. The pancreatic renin–angiotensin system may play an important role in the pathogenesis of AP.

Aim

The present study aimed to investigate the possible protective role of captopril (CAP), an angiotensin-converting enzyme inhibitor, in attenuating l-arginine-induced AP rat model and to elucidate the underlying molecular mechanisms.

Methods

Forty-eight adult male Wister rats were divided into four equal groups: control group (vehicle, orally for 10 days), AP group (3 g/kg l-arginine, single i.p.) on 10th day of the experiment, CAP group (50 mg/kg captopril, orally, once daily), and MP group (30 mg/kg methylprednisolone, orally, once daily). CAP and MP were administered for 10 days prior to l-arginine injection. Rats were sacrificed 24 h after arginine injection. Inflammatory biomarkers; tumor necrosis factor alpha (TNF-α) concentration, myeloperoxidase (MPO) activity, and inducible nitric oxide synthase (iNOS) gene expression were determined in pancreas. Oxidative stress biomarkers; pancreatic nitric oxide (NO) and reduced glutathione (GSH) concentrations were measured. Moreover, serum α-amylase and lipase activities were measured and histopathological studies of the pancreas were done.

Results

CAP group showed a significant reduction in pancreatic TNF-α concentration, MPO activity, NO concentration, and downregulation of iNOS gene expression compared to AP group. CAP group also showed a significant increase in GSH concentration with amelioration of histological changes of AP as well as MP group.

Conclusion

Captopril treatment showed a protective and comparable effect with MP treatment in AP rat model.

Keywords

Acute pancreatitis Captopril iNOS Myeloperoxidase TNF-α 

Notes

Acknowledgments

The authors gratefully acknowledge Dr. Mohammed Fawzy for his help in conducting and interpreting the histopathological investigations.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Nahla E. El-Ashmawy
    • 1
  • Naglaa F. Khedr
    • 1
  • Hoda A. El-Bahrawy
    • 1
  • Omnia B. Hamada
    • 1
  1. 1.Department of Biochemistry, Faculty of PharmacyTanta UniversityTantaEgypt

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