SciELO - Scientific Electronic Library Online

vol.54 número6Prevalence of estrogen receptor alpha PvuII (c454-397T>C) and XbaI (c454A>G) polymorphisms in a population of Brazilian womenAntioxidant activity of the extracts from Pycnoporus sanguineus mycelium índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados


Brazilian Archives of Biology and Technology

versão On-line ISSN 1678-4324


EROğLU, Halil Erhan. The cytogenetic effects of black tea and green tea on cultured human lymphocytes. Braz. arch. biol. technol. [online]. 2011, vol.54, n.6, pp.1159-1166. ISSN 1678-4324.

In this study, the cytogenetic effects of black tea and green tea were determined in cultured peripheral blood lymphocytes. Results showed that black tea and green tea induced the mitotic and replication indexes and decreased micronuclei. But these data were not statistically significant for green tea. The effects of black tea on the micronucleus formation and mitotic index were statistically significant. The decrease in micronucleus counts indicated that black tea and green tea had considerable anticlastogenic and antigenotoxic effects as observed in vitro in human lymphocytes. Thus, it could be concluded that tea polyphenols protected the normal cells from genotoxic or carcinogenic agents, which indicated the therapeutic and antioxidative role of catechins, flavonoids or other tea compounds.

Palavras-chave : Tea; catechins; micronucleus; mitotic index; replication index.

        · texto em Inglês     · Inglês ( pdf epdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons