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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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Biochemical Manipulation via Iron Chelation to Enhance Porphyrin Production from Porphyrin Precursors

Volume 26, Edição 2, 2007, pp. 89-103
DOI: 10.1615/JEnvironPatholToxicolOncol.v26.i2.40
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RESUMO

Topical protoporphyrin IX (PPIX) induced photodynamic therapy (PDT) of basal cell carcinoma (BCC) produces good clinical outcomes with excellent cosmesis as long as the disease remains superficial. Efficacy for nodular BCC, however, appears inferior to standard treatment unless repeat treatments are performed. Enhancement is therefore required and may be possible by employing iron chelating agents to temporarily increase PPIX accumulation above the levels normally obtained using aminolaevulinic acid (ALA) or the methyl ester of ALA (MAL) alone. In vitro studies investigated the efficacies of the novel iron chelator, CP94 (1,2-diethyl-3-hydroxypyridin-4-one hydrochloride), and the established iron chelator, desferrioxamine (DFO), at increasing PPIX fluorescence in cultured human lung fibroblasts and squamous carcinoma cells incubated with ALA/MAL. CP94 was found to produce greater PPIX fluorescence when administered with ALA/MAL than either congener could produce alone. CP94 was also found to be superior to DFO in the enhancement of PPIX fluorescence and could be employed to accumulate the same levels of PPIX within a shorter time period. Clinical utilization of CP94 to enhance ALA/MAL-PDT could potentially result in greater PPIX accumulation or alternatively could be employed to reduce the length of the required drug-light interval. Clinical investigation of this is currently underway.

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