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Journal of Environmental Pathology, Toxicology and Oncology

Published 4 issues per year

ISSN Print: 0731-8898

ISSN Online: 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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Aqueous Extract of Smokeless Tobacco (gutkha) Deregulates Tumor Suppressor and DNA Repair Response in a Murine Model of Smokeless Tobacco Use

Volume 36, Issue 3, 2017, pp. 245-267
DOI: 10.1615/JEnvironPatholToxicolOncol.2017021847
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ABSTRACT

The effect of smokeless tobacco (gutkha) was investigated by treating male and female Swiss Albino mice with an aqueous extract of smokeless tobacco (AEST). AEST was administered at a dose of 25 mg kg-1 body weight per day for different time periods (6, 12, 16, and 24 weeks), and control animals were provided only drinking water without AEST for the same period. Control and AEST-treated mice were observed for different oxidative stress parameters, nitric oxide (NO) release, and myeloperoxidase (MPO) release, and they were evaluated for alterations in tumor suppressor and DNA repair responses in the liver and spleen. Both male and female mice treated with AEST showed significant increase in lipid peroxidation, protein carbonylation, and NO and MPO release in the liver and spleen compared to age- and gender-matched controls. The significant decline in tumor suppressor p53 protein levels, likely mediated by concomitantly upregulated levels of Mdm2, was observed. We also observed a significant decline in the levels of DNA repair proteins Brca2 and Ape-1 compared to the respective controls. Thus, AEST induces oxidative stress, inflammation, and significantly lowers tumor suppressor and DNA repair responses. These factors may work in conjunction to increase the risk for certain diseases, including cancer.

CITED BY
  1. Laskar Jeny, Sengupta Mahuya, Choudhury Yashmin, Treatment with the anti-diabetic drug metformin ameliorates betel-nut induced carcinogenesis in a murine model, Pharmacological Reports, 71, 6, 2019. Crossref

  2. Devi Angom Ranjana, Sengupta Mahuya, Barman Dipu Mani, Choudhury Yashmin, Oral Nicotine Induces Oxidative Stress and Inflammation but Does Not Subvert Tumor Suppressor and DNA Repair Responses in Mice, Indian Journal of Clinical Biochemistry, 36, 3, 2021. Crossref

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