Related Experiment Video
Updated: May 2, 2026
Chronic Salmonella Infected Mouse Model
Published on: May 31, 2010
[Protective effect of miliacin during experimental salmonellosis infection]
Aim:
Evaluation of influence of triterpenoid miliacin on the development of experimental salmonellosis infection.
Materials And Methods:
Studies were carried out in 330 male mice (CBAxC57Bl6)F1. Miliacin was administered 3 times intraperitoneally with the interval of 3 days between administrations at a single dose of 2 mg/kg. The animals were infected intraperitoneally by hospital origin Salmonella enteritidis strain (2x10(6) bacteria per mice). 4 groups of mice were used: I - intact; II - infected; III - infected after administering solvent for miliacin 3 times (tween 21 at final concentration of 1.6x 10(-7) mol/kg); IV - infected after administration ofmiliacin.
Results:
Miliacin reduced the mortality of mice compared with groups II and III. Microbial contamination of mice spleen in group IV was significantly lower compared with group II at all the periods of the study, and liver - at days 10 and 15. Triterpenoid weakened cell depletion of bone marrow, thymus and limited hyperplasia of spleen compared with animals of groups II and III. Its protective effect did not correlate with increase of antibody titers.
Conclusion:
Miliacin weakens the severity of salmonellosis infection course.
Insights
Triterpenoid miliacin administration significantly reduced mortality and bacterial load in experimental salmonellosis. Miliacin treatment weakened the overall severity of the Salmonella enteritidis infection in mice.
Area of Science:
- Immunology
- Pharmacology
- Microbiology
Context:
- Salmonellosis remains a significant global health concern, necessitating novel therapeutic strategies.
- Triterpenoids, like miliacin, are natural compounds with potential immunomodulatory and antimicrobial properties.
- Understanding the host-pathogen interactions in experimental salmonellosis is crucial for developing effective treatments.
Purpose:
- To evaluate the therapeutic potential of the triterpenoid miliacin against experimental Salmonella enteritidis infection.
- To assess the impact of miliacin on key indicators of salmonellosis, including mortality, bacterial dissemination, and host immune responses.
Summary:
- Miliacin administration in mice infected with Salmonella enteritidis led to a significant reduction in mortality rates compared to control groups.
- Treatment with miliacin resulted in lower microbial contamination in the spleen and liver, indicating reduced bacterial dissemination.
- Miliacin mitigated immune organ damage, such as bone marrow depletion and thymic atrophy, and limited spleen enlargement, without significantly altering antibody titers.
Impact:
- These findings suggest that miliacin possesses protective effects against Salmonella enteritidis infection.
- Miliacin may represent a promising therapeutic agent for managing salmonellosis by modulating the host's immune response and reducing pathogen burden.
- Further research into the mechanisms of action of miliacin could pave the way for novel anti-Salmonella therapies.
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