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Journal of Environmental Pathology, Toxicology and Oncology
Главный редактор: Qian Peng (open in a new tab)

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ISSN Печать: 0731-8898

ISSN Онлайн: 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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The Cyclooxygenase-2 Inhibitor Etoricoxib Is a Potent Chemopreventive Agent of Colon Carcinogenesis in the Rat Model

Том 28, Выпуск 1, 2009, pp. 39-46
DOI: 10.1615/JEnvironPatholToxicolOncol.v28.i1.40
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Краткое описание

Cyclooxygenase-2 (COX-2), an inducible prostaglandin G/H synthase, is overexpressed in several human cancers, including colon cancer, and therefore the potential ability of a selective COX-2 inhibitor, etoricoxib, is considered in the prevention of the 1,2-dimethyl hydrazine (DMH)-induced colon carcinogenesis in the rat model. DMH was injected s.c. for 6 weeks, whereas etoricoxib was fed orally to the rats on a daily basis. The results showed that DMH produced a very high number of multiple plaque lesions (MPLs), putative neoplastic biomarkers, localized throughout the colon, whereas considerable regression was observed with etoricoxib treatment. In addition, the etoricoxib group was the only group that exhibited very few of these lesions. Histopathological analysis revealed extreme dysplasia, a few adenomas, and other carcinogenic changes in the DMH group, which are distinctly absent in the etoricoxib-treated group. COX-2 was also seen to be highly expressed following DMH treatment. The DMH treatment caused very few apoptotic cells, as determined by the TUNEL assay of the colonic mucosa in paraffin sections whose number greatly increased following etoricoxib treatment. Because all these changes were clearly reversed by etoricoxib in DMH-treated animals, and the use of etoricoxib alone did not produce a neoplastic effect per se, it appears that etoricoxib, a selective COX-2 inhibitor, might be a safe and potentially chemopreventive agent in colon cancer.

ЦИТИРОВАНО В
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