Studies of micronuclei and other nuclear abnormalities in red blood cells of Colossoma macropomum exposed to methylmercury
| Autor: | Carlos Alberto Machado da Rocha, Lorena Araújo da Cunha, Raul Henrique da Silva Pinheiro, Marcelo de Oliveira Bahia, Rommel Mario Rodríguez Burbano |
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| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: | |
| Zdroj: | Genetics and Molecular Biology, Vol 34, Iss 4, Pp 694-697 (2011) |
| Druh dokumentu: | article |
| ISSN: | 1415-4757 1678-4685 |
| DOI: | 10.1590/S1415-47572011000400024 |
| Popis: | The frequencies of micronuclei (MN) and morphological nuclear abnormalities (NA) in erythrocytes in the peripheral blood of tambaqui (Colossoma macropomum), treated with 2 mg.L-1 methylmercury (MeHg), were analyzed. Two groups (nine specimens in each) were exposed to MeHg for different periods (group A - 24 h; group B - 120 h). A third group served as negative control (group C, untreated; n = 9). Although, when compared to the control group there were no significant differences in MN frequency in the treated groups, for NA, the differences between the frequencies of group B (treated for 120 h) and the control group were extremely significant (p < 0.02), thus demonstrating the potentially adverse effects of MeHg on C. macropomum erythrocytes after prolonged exposure. |
| Databáze: | Directory of Open Access Journals |
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