کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9763753 1498853 2005 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Mechanistic studies of relevance to the biological activities of chromium
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Mechanistic studies of relevance to the biological activities of chromium
چکیده انگلیسی
Cellular uptake of Cr(VI), followed by its reduction to Cr(III) with the formation of reactive Cr(V/IV) intermediates, is a generally accepted cause of Cr(VI)-induced genotoxicity and carcinogenicity. Recently, Cr(III) oxidation to Cr(V) and/or Cr(VI) in biological systems came into consideration as a possible reason of anti-diabetic activities of some Cr(III) complexes, as well as of long-term toxicities of such complexes. The current review (with 142 references) summarizes the existing knowledge on the mechanisms of biologically relevant redox reactions of Cr(VI/V/IV/III) complexes. Applications of global kinetic analysis techniques, in conjunction with the methods for characterization of reactive intermediates (such as X-ray absorption spectroscopy, electrospray mass spectrometry, and EPR spectroscopy), for understanding the chemical basis of Cr biological activities, are illustrated with the examples from the authors' research.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Coordination Chemistry Reviews - Volume 249, Issues 3–4, February 2005, Pages 281-298
نویسندگان
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