Resumo

LOPEZ-ROJAS, Daniel; BECERRA-GUTIERREZ, Lizzie  e  DIAZ-VELEZ, Cristian. Antigenotoxic effect of Salvia hispanica "chia" seeds using the Allium cepa test. Acta méd. Peru [online]. 2019, vol.36, n.2, pp.79-87. ISSN 1728-5917.

Objective: The objective was to assess the antigenotoxic effect of Salvia hispanica seeds exposed to the genotoxic effect of sodium azide using the Allium cepa test. Materials and Methods: This is an experimental study. The analyzed units were meristem cells from forty Allium cepa bulbs Five working groups were available: negative controls, positive controls, pre-treatment, simultaneous, and post-treatment, and two concentrations (10% and 20%) were used. Bulbs were exposed to treatment for a total 48-hour time. Results: A significant reduction in the mitotic index (MI) of negative controls (23.7) was observed, compared to positive controls (3.4), confirming the genotoxic action of sodium azide. In the pre-treatment group, damage reduction values (DR%) were -151.2% and -59.2%, indicating their absent demutagenic role. In both posttreatment and simultaneous groups, DR% values were 37.6 %, 67.2 %, 59.2 %, and 64.8 % for both concentrations, respectively, indicating their concentration-dependent bioantimutagenic activity. However, no statistically significant differences were found between the concentrations tested. Conclusion: Salvia hispanica seeds exposed to the genotoxic effect of sodium azide using the Allium cepa test have no antigenotoxic effect at 10% and 20% concentrations.

Palavras-chave : Antimutagenic agents; Chromosome aberrations; Mitotic index; Salvia; DNA damage.

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