Synaptonemal complex damage in mouse spermatocytes exposed to tequila and brandy.

We evaluated the capacity of tequila and brandy to induce synaptonemal complex (SC) breaks in mouse spermatocytes. The alcoholic beverages were 20% diluted in distilled water and administered daily by oral intubation for 21 days (1, 2, and 3 g/kg, six animals per group). A positive control group was administered cyclophosphamide (CP) (20 mg/kg), and another group of mice was treated with distilled water. The results indicated the following: (i) tequila induced a statistically significant increase in SC damage with 2 g/kg and 3 g/kg, and brandy was genotoxic only with 3 g/kg, (ii) CP induced almost a duplication of the total number of breaks produced by tequila or brandy; (iii) the average weight increase in the animals was 3.3 g, but the group treated with the highest dose of tequila showed a slight weight decrease; (iv) the weight of the testes did not show any significant difference among groups of animals; and (v) there were no significant differences between groups with respect to the frequency of pachytenes (mean number: 195 in 1000 cells).