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Vitamin C deficiency increases the binucleation of hepatocytes in SMP30 knock-out mice
- Source :
- Journal of Gastroenterology and Hepatology. 25:1769-1776
- Publication Year :
- 2010
- Publisher :
- Wiley, 2010.
-
Abstract
- Background and Aims: The binucleation of hepatocytes, which was known as an important feature of liver growth and physiology, has been reported to be increased during the chronic oxidative injury stage and has been regarded as an age-related change of hepatic structures. Therefore, we investigated the binuclearity pattern in the livers of senescence marker proteins-30 (SMP30) knock-out (KO) mice compared with wild-type (WT) mice and vitamin C-treated KO (KO + VC) mice. Methods: The WT, KO and KO + VC mice were fed a vitamin C free diet and VC(+) group mice were given vitamin C water containing 1.5 g/L of vitamin C, whereas VC(−) group was given normal drinking water without vitamin C, for 16 weeks. Results: In microscopic examination, the livers of KO mice showed a significantly increased number of binuclear hepatocytes compared with that of WT mice and KO + VC mice. KO mice also showed the most increased expression level of CYP2E1 and PCNA determined by immunohistochemistry and immunoblot analysis. Moreover, KO mice indicated the highest level of serum alanine aminotransferase and aspartate aminotransferase level in serum biochemical analysis. Accordingly, significantly decreased levels of reactive oxygen species, MDA (malondialdehyde) and HAE (4-hydroxyalkenals) were detected in KO + VC mice compared with KO mice. Conclusion: Therefore, it is concluded that vitamin C deficiency induces an increase of CYP2E1 expression and elevated ROS production, which causes oxidative liver injury and the elevation of hepatocyte binucleation in SMP30 KO mice.
- Subjects :
- Liver injury
Vitamin
medicine.medical_specialty
Hepatology
Vitamin C
Gastroenterology
Biology
Ascorbic acid
Malondialdehyde
medicine.disease
medicine.disease_cause
Lipid peroxidation
chemistry.chemical_compound
medicine.anatomical_structure
Endocrinology
chemistry
Hepatocyte
Internal medicine
medicine
Oxidative stress
Subjects
Details
- ISSN :
- 08159319
- Volume :
- 25
- Database :
- OpenAIRE
- Journal :
- Journal of Gastroenterology and Hepatology
- Accession number :
- edsair.doi...........0dc0fca8445a40929422c009071c2de8