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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

Indexed in

Molecular Characterization of Isocyanate-Induced Male Germ-Line Genomic Instability

Volume 29, Edição 3, 2010, pp. 213-234
DOI: 10.1615/JEnvironPatholToxicolOncol.v29.i3.50
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RESUMO

Male reproductive health is exquisitely sensitive to environmental insults as evidenced by the rising incidence of testicular cancers and low and probably declining semen quality. Isocyanates, such as methyl isocyanate (MIC), with their wide industrial applications, are known to exert severe ill health effects. The present study was performed to find out the pathophysiological implications of isocyanate exposure on the male germ line. The investigations were performed in the cultured mouse spermatogonial GC-1 spg cell line using N-succinimidyl N-methylcarbamate, a surrogate chemical to MIC. DNA damage, oxidative stress and apoptosis response parameters increased with time of exposure and dose after treatment. Treated cells also displayed elevated levels of inflammatory cytokines as well as morphological transformation and stress-responsive senescence. Chromosomal aberrations, telomere anomaly, aneuploidy and variable amplification of microsatellite repeats additionally indicated induced genomic instability. This was accompanied by evidence of a deregulation of cell cycle progression, such as substantial fold-changes in the expression of proliferating cell nuclear antigen, Cyclin D1, Bcl-2 and Bax genes; and aberrant expression of p53, cyclin A, cyclin E, CDK-2 and aurora kinase-B proteins. Our results demonstrate that MIC in the form of N-succinimidyl N-methylcarbamate promotes germ-line genomic instability in vitro. We envisage that understanding the interplay between environmental toxin-induced signaling and predisposition to testicular cancers would spur identification of meaningful targets for useful therapeutic translational modalities.

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