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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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A Kinetic Study of Reactive Oxygen Species in Rainbow Trout Hepatocytes by Fluorometry

Volume 35, Edição 4, 2016, pp. 291-297
DOI: 10.1615/JEnvironPatholToxicolOncol.2016016184
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RESUMO

The kinetics of reactive oxygen species (ROS) formation in a primary culture of rainbow trout hepatocytes was investigated using three fluorescent probes: 5-,6-chloromethyl-2',7'-dichlorodihydrofluorescein diacetate (CM-H2DCFDA), dihydrorhodamine 123 (DHR 123), and dihydroethidium (DHE). The cell cultures were loaded with the three probes, separately. Hepatocytes were then exposed to Cu (0.15–10 mM) in serum-free Leibovitz's medium for 30 min before being quantified by a fluorescence plate reader during 30 min. Membrane integrity and glutathione (GSH) content were quantified using the fluorescent probes 5-carboxyfluorescein diacetate–acetoxymethyl ester (CFDA-AM) and monochlorobimane. Increasing ROS formation with increasing concentrations of Cu was shown using CM-H2DCFDA, whereas DHR 123 fluorescence decreased. Significant differences between control and treatment groups were observed at the highest concentrations (2.5 and 10 mM) for both probes. DHE fluorescence was lower than that of the other two probes and did not appear to be affected by any exposure. Additionally, a dose-dependent depletion of GSH and decreasing membrane integrity with increasing Cu concentrations were demonstrated, with significant effects observed at 2.5 and 10 mM for both endpoints. The results showed that both CMH2DCFDA and DHR 123 detected the development of their target Cu-induced ROS in trout hepatocytes but did so in opposite fashions. DHE was found to be unsuitable for detecting kinetics of ROS formation in this model system.

CITADO POR
  1. Yazdani Mazyar, Comparative toxicity of selected PAHs in rainbow trout hepatocytes: genotoxicity, oxidative stress and cytotoxicity, Drug and Chemical Toxicology, 43, 1, 2020. Crossref

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