Journal of Physiology and Biochemistry

, Volume 68, Issue 1, pp 29–35 | Cite as

Protective effects of curcumin, α-lipoic acid, and N-acetylcysteine against carbon tetrachloride-induced liver fibrosis in rats

  • Mohamed A. MorsyEmail author
  • Ahlam M. Abdalla
  • Ahmed M. Mahmoud
  • Soha A. Abdelwahab
  • Magda E. Mahmoud
Original Paper


Liver fibrosis is a major health problem that can lead to the development of liver cirrhosis and hepatocellular carcinoma. On the other hand, several antioxidants have been shown to possess protective effect against liver fibrosis. Therefore, in the present work, the effectiveness of curcumin, α-lipoic acid, and N-acetylcysteine in protecting against carbon tetrachloride (CCl4)-induced liver fibrosis as well as the mechanism(s) implicated in this protective effect was studied. The antioxidants used in this study resulted in hepatoprotective effect as evident by substantial decreases in collagen deposition in histopathological examinations in addition to significant decrease in serum levels of alanine aminotransferase, aspartate aminotransferase, gamma glutamyl transpeptidase, bilirubin, and transforming growth factor-alpha (TGF-α) as well as hepatic malondialdehyde concentration, with a concurrent increase in serum matrix metalloproteinase-13 (MMP-13) and hepatic reduced glutathione (GSH) levels as compared to CCl4 fibrotic group. In conclusion, curcumin, α-lipoic acid, and N-acetylcysteine protect rats against CCl4-induced liver fibrosis most possibly through their antioxidant activities and their capacities to induce MMP-13 and to inhibit TGF-α levels.


Curcumin α-Lipoic acid N-Acetylcysteine Liver fibrosis 


Conflict of interest

The authors declare that there are no conflicts of interest.


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Copyright information

© University of Navarra 2011

Authors and Affiliations

  • Mohamed A. Morsy
    • 1
    Email author
  • Ahlam M. Abdalla
    • 2
  • Ahmed M. Mahmoud
    • 2
  • Soha A. Abdelwahab
    • 3
  • Magda E. Mahmoud
    • 4
  1. 1.Department of Pharmacology, Faculty of MedicineEl-Minia UniversityEl-MiniaEgypt
  2. 2.Department of Biochemistry, Faculty of MedicineEl-Minia UniversityEl-MiniaEgypt
  3. 3.Department of Histology, Faculty of MedicineEl-Minia UniversityEl-MiniaEgypt
  4. 4.Department of Agricultural Chemistry, Faculty of AgricultureEl-Minia UniversityEl-MiniaEgypt

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