Abstract Title:

Protective effect of basil (Ocimum basilicum L.) against oxidative DNA damage and mutagenesis.

Abstract Source:

Food Chem Toxicol. 2008 Feb;46(2):724-32. Epub 2007 Nov 5. PMID:17980946

Abstract Author(s):

Tanja Berić, Biljana Nikolić, Jasna Stanojević, Branka Vuković-Gacić, Jelena Knezević-Vukcević

Abstract:

 Mutagenic and antimutagenic properties of essential oil (EO) of basil and its major constituent Linalool, reported to possess antioxidative properties, were examined in microbial tests. In Salmonella/microsome and Escherichia. coli WP2 reversion assays both derivatives (0.25-2.0 microl/plate) showed no mutagenic effect. Salmonella. typhimurium TA98, TA100 and TA102 strains displayed similar sensitivity to both basil derivatives as non-permeable E. coli WP2 strains IC185 and IC202 oxyR. Moreover, the toxicity of basil derivatives to WP2 strains did not depend on OxyR function. The reduction of t-BOOH-induced mutagenesis by EO and Linalool (30-60%) was obtained in repair proficient strains of the E. coli K12 assay (Nikolić, B., Stanojević, J., Mitić, D., Vuković-Gacić, B., Knezević-Vukcević, J., Simić, D., 2004. Comparative study of the antimutagenic potential of vitamin E in different E. coli strains. Mutat. Res. 564, 31-38), as well as in E. coli WP2 IC202 strain. EO and Linalool reduced spontaneous mutagenesis in mismatch repair deficient E. coli K12 strains (27-44%). In all tests, antimutagenic effect of basil derivatives was comparable with that obtained with model antioxidant vitamin E. Linalool and vitamin E induced DNA strand breaks in Comet assay on S. cerevisiae 3A cells, but at non-genotoxic concentrations (0.075 and 0.025 microg/ml, respectively) they reduced the number of H(2)O(2)-induced comets (45-70% Linalool and 80-93% vitamin E). Obtained results indicate that antigenotoxic potential of basil derivatives could be attributed to their antioxidative properties.

Study Type : In Vitro Study
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