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Journal of Environmental Pathology, Toxicology and Oncology

Publicou 4 edições por ano

ISSN Imprimir: 0731-8898

ISSN On-line: 2162-6537

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 2.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.5 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00049 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.59 SJR: 0.429 SNIP: 0.507 CiteScore™:: 3.9 H-Index: 49

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Mutagenic Potential of Cypermethrin in Mouse Dominant Lethal Assay

Volume 21, Edição 3, 2002, 7 pages
DOI: 10.1615/JEnvironPatholToxicolOncol.v21.i3.70
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RESUMO

Cypermethrin (CYP) is a synthetic pyrethroid insecticide considered to be environmentally safe and widely used in agriculture and veterinary medicine. To ascertain the validity of this opinion, we investigated the mutagenic potential of CYP using the dominant lethal assay in male Swiss albino mice. CYP was administered by gavage at the dose of 20, 40, and 80 mg/kg body weight, dissolved in 0.2 mL corn oil. Treated mice from all groups were mated with untreated virgin females for a period of 6 weeks that covers the entire spermatogenetic cycle. In the pregnant females, we found a high rate of pre- and post-implantation losses. Dominant lethal mutations were induced in a benzo(a)pyrene-treated group (positive control), and a reduction in the number of total implants was found in all CYP-treated groups only during the initial mating weeks. No significant pre-implantation losses were noted in any of the tested doses. However, significant postimplantation losses were identified in the medium and high doses of CYP. A dose-dependent decline in the number of living implants was noticed in all CYP-treated animals during the first 3 weeks, but decreased in the later weeks. The average mutagenic index of 6 weeks was significantly increased only in the high CYP dose. Our results showed that CYP has mutagenic activity, inducing dominant lethal mutations in male germ cells of mice and caution is recommended in the use of this insecticide.

CITADO POR
  1. Karamova Nazira S, Denisova Alexandra P, Stasevski Zenon, Evaluation of mutagenic activity of the pesticides: actara, sencor, mospilan, pencozeb, fastac in the Ames test, Ecological genetics, 6, 4, 2008. Crossref

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