Angiotensin-converting enzyme inhibitor prevents oxidative stress, inflammation, and fibrosis in carbon tetrachloride-treated rat liver

Hasan Mahmud Reza, Nabila Tabassum, Md Abu Taher Sagor, Mohammed Riaz Hasan Chowdhury, Mahbubur Rahman, Preeti Jain, Md Ashraful Alam

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Hepatic fibrosis is a common feature of chronic liver injury, and the involvement of angiotensin II in such process has been studied earlier. We hypothesized that anti-angiotensin II agents may be effective in preventing hepatic fibrosis. In this study, Long Evans female rats were used and divided into four groups such as Group-I, Control; Group-II, Control + ramipril; Group-III, CCl4; and Group-IV, CCl4 +ramipril. Group II and IV are treated with ramipril for 14 d. At the end of treatment, the livers were removed, and the level of hepatic marker enzymes (aspartate aminotransferase, Alanine aminotransferase, and alkaline phosphatase), nitric oxide, advanced protein oxidation product, catalase activity, and lipid peroxidation were determined. The degree of fibrosis was evaluated through histopathological staining with Sirius red and trichrome milligan staining. Carbon-tetrachloride (CCl4) administration in rats developed hepatic dysfunction and raised the hepatic marker enzymes activities significantly. CCl4 administration in rats also produced oxidative stress, inflammation, and fibrosis in liver. Furthermore, angiotensinogen-inhibitor ramipril normalized the hepatic enzymes activities and improved the antioxidant enzyme catalase activity. Moreover, ramipril treatment ameliorated lipid peroxidation and hepatic inflammation in CCl4-treated rats. Ramipril treatment also significantly reduced hepatic fibrosis in CCl4-administered rats. In conclusion, our investigation suggests that the antifibrotic effect of ramipril may be attributed to inhibition of angiotensin-II mediated oxidative stress and inflammation in liver CCl4-administered rats.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalToxicology Mechanisms and Methods
DOIs
StateAccepted/In press - Feb 5 2016
Externally publishedYes

Fingerprint

Ramipril
Oxidative stress
Carbon Tetrachloride
Angiotensin-Converting Enzyme Inhibitors
Liver
Rats
Oxidative Stress
Fibrosis
Inflammation
Enzyme activity
Angiotensin II
Catalase
Advanced Oxidation Protein Products
Enzymes
Lipids
Angiotensinogen
Lipid Peroxidation
Aspartate Aminotransferases
Alanine Transaminase
Alkaline Phosphatase

Keywords

  • Angiotensin-converting enzyme
  • fibrosis
  • inflammation
  • oxidative stress
  • ramipril

ASJC Scopus subject areas

  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Angiotensin-converting enzyme inhibitor prevents oxidative stress, inflammation, and fibrosis in carbon tetrachloride-treated rat liver. / Reza, Hasan Mahmud; Tabassum, Nabila; Sagor, Md Abu Taher; Chowdhury, Mohammed Riaz Hasan; Rahman, Mahbubur; Jain, Preeti; Alam, Md Ashraful.

In: Toxicology Mechanisms and Methods, 05.02.2016, p. 1-8.

Research output: Contribution to journalArticle

Reza, Hasan Mahmud ; Tabassum, Nabila ; Sagor, Md Abu Taher ; Chowdhury, Mohammed Riaz Hasan ; Rahman, Mahbubur ; Jain, Preeti ; Alam, Md Ashraful. / Angiotensin-converting enzyme inhibitor prevents oxidative stress, inflammation, and fibrosis in carbon tetrachloride-treated rat liver. In: Toxicology Mechanisms and Methods. 2016 ; pp. 1-8.
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