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The CYP2D6 Animal Model: How to Induce Autoimmune Hepatitis in Mice
Published on: February 3, 2012
A mouse model linking viral hepatitis and salivary gland dysfunction
L M Kasman1, L L London, S D London
1Department of Microbiology and Immunology, Medical University of South Carolina, BSB-201, PO Box 250504, 173 Ashley Ave, Charleston, SC 29403, USA. kasmanl@musc.edu
Oral Diseases
|August 7, 2009
Summary
This study introduces a mouse model for xerostomia (dry mouth) caused by viral hepatitis. Murine cytomegalovirus infection in BALB/c mice leads to severe saliva deficiency, aiding research into hepatitis-associated dry mouth.
Area of Science:
- Virology
- Immunology
- Pathology
Background:
- Viral hepatitis is a known cause of xerostomia in humans.
- No established animal model exists for studying hepatitis-induced dry mouth.
Purpose of the Study:
- To establish and characterize an animal model for hepatitis-associated xerostomia.
- To investigate the mechanisms underlying saliva deficiency during viral hepatitis.
Main Methods:
- BALB/c mice were infected with murine cytomegalovirus (MCMV).
- Saliva production was measured after pilocarpine stimulation.
- Tissues (salivary gland, liver, spleen) and sera were analyzed for viral presence, cytokines, and inflammation.
Main Results:
- A severe, reproducible saliva deficiency occurred post-MCMV infection, peaking at 88% reduction by day 7.
- Hyposalivation correlated with elevated liver enzymes, not salivary gland viral load or inflammation.
- Mice resistant to MCMV-induced hepatitis were protected from saliva deficiency.
Conclusions:
- MCMV-induced salivary dysfunction is biphasic: an acute hepatitis phase followed by a sialoadenitis phase.
- This mouse model offers a platform for studying hepatitis-associated xerostomia.
