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Carbendazim generates symplasts in rat spermatogenic clones
M A Akbarsha1, B Kadalmani, R Girija
1Department of Animal Science, School of Life Sciences, Bharathidasan University, Tiruchirappalli 620 024, India.
Indian Journal of Experimental Biology
|June 20, 2001
Summary
Carbendazim, a fungicide, disrupts actin microfilaments in rat testes, leading to reproductive toxicity. This study identifies actin microfilaments as a key target of carbendazim's toxic effects in the seminiferous epithelium.
Area of Science:
- Reproductive Toxicology
- Cell Biology
- Histopathology
Background:
- Carbendazim is a fungicide known to cause reproductive toxicity.
- Its known target is microtubules, but non-microtubular targets remain under investigation.
- Seminiferous epithelium contains actin microfilaments crucial for cell structure and function.
Purpose of the Study:
- To identify non-microtubular targets of carbendazim in the rat seminiferous epithelium.
- To investigate the role of actin microfilaments in carbendazim-induced reproductive toxicity.
Main Methods:
- Male Wistar rats were administered a single oral dose of carbendazim (400 mg/kg).
- Testes were analyzed for histopathological changes 48 days post-treatment.
- Symplasts were localized, and their diameter and nuclear count were measured.
Main Results:
- Histopathological analysis revealed changes consistent with disruption of intercellular bridges.
- The formation of symplasts, indicative of actin microfilament disruption, was observed.
- Measurements of symplast size and nuclear content provided quantitative evidence of cellular changes.
Conclusions:
- Actin microfilaments are identified as a non-microtubular target of carbendazim toxicity.
- Disruption of actin microfilaments contributes to the reproductive toxicity of carbendazim.
- These findings provide new insights into the mechanism of carbendazim's adverse effects on male reproduction.