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The trimethyltin syndrome in rats
Neurobehavioral Toxicology and Teratology
|March 1, 1982
Summary
Trimethyltin (TMT) chloride induced a distinct behavioral syndrome in rats, including seizures and self-mutilation. Its toxicity and effects on the hippocampus varied with rat weight, suggesting TMT as a research tool.
Area of Science:
- Neuroscience
- Toxicology
- Behavioral Science
Background:
- Trimethyltin (TMT) chloride is a neurotoxicant.
- Understanding its effects is crucial for neurological research.
Purpose of the Study:
- To characterize the behavioral and physiological effects of TMT in rats.
- To investigate the dose-dependent toxicity and histopathological changes induced by TMT.
Main Methods:
- Adult male Long-Evans hooded rats were administered TMT chloride.
- Behavioral observations, weight measurements, and histopathological evaluations of hippocampal tissue were performed.
- LD50 was determined based on rat weight.
Main Results:
- TMT induced a unique syndrome: seizures, tail mutilation, vocalization, and hyperreactivity.
- Toxicity (LD50) was weight-dependent, with larger rats showing increased sensitivity.
- Histopathology revealed cell loss primarily in the hippocampal regio inferior pyramidal cells.
- Mild hypothermia and tremors were observed.
Conclusions:
- TMT chloride is a potent neurotoxin that causes specific behavioral and neurological deficits.
- The weight-dependent toxicity highlights the importance of dosage and animal size in TMT studies.
- TMT's selective hippocampal damage makes it a valuable tool for studying limbic system function and dysfunction.