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Cytogenetic effects of trifluoperazine in mice
Abstract:
The cytogenetic effects of trifluoperazine have been studied in male Swiss albino mice using the micronucleus test, chromosomal analysis in germ cells and a sperm morphology assay. The mice were treated by gavage with 80, 120 or 160 micrograms trifluoperazine/kg, divided in each case into two equal doses given 24 hr apart. The dose levels were selected on the basis of standard human therapeutic dosage. Compared with the findings in control mice dosed with distilled water, there were significant increases in the frequency of micronuclei, of chromosomal aberrations in the spermatocytes and of abnormal sperms, at all the levels of trifluoperazine treatment.
Insights
Trifluoperazine exposure significantly increased cytogenetic damage in male mice. This included higher rates of micronuclei, chromosomal aberrations, and abnormal sperm at all tested doses.
Area of Science:
- Toxicology
- Genetics
- Pharmacology
Background:
- Trifluoperazine is a phenothiazine derivative used clinically.
- Assessing the genotoxic potential of pharmaceuticals is crucial for safety.
Purpose of the Study:
- To evaluate the cytogenetic effects of trifluoperazine in male Swiss albino mice.
- To determine if trifluoperazine induces genotoxicity at doses relevant to human therapeutic levels.
Main Methods:
- Male Swiss albino mice were administered trifluoperazine via gavage at 80, 120, or 160 µg/kg.
- Cytogenetic endpoints assessed included the micronucleus test, germ cell chromosomal analysis, and sperm morphology assay.
- Dose levels were based on standard human therapeutic dosages.
Main Results:
- All tested dose levels of trifluoperazine resulted in a significant increase in micronuclei frequency.
- Chromosomal aberrations in spermatocytes were significantly elevated across all treatment groups.
- A significant increase in the incidence of abnormal sperm was observed at all trifluoperazine exposure levels.
Conclusions:
- Trifluoperazine exhibits significant genotoxic effects in male mice.
- The study indicates potential risks of trifluoperazine-induced cytogenetic damage at therapeutic dose levels.