In vitro and animal studies show that vanadate and other Because most cellular components contain hydroxyl and/or vanadium compounds increase glucose transport activity and phosphate groups, vanadate reacts as shown in eq. 1, and 2 normalize glucose metabolism [1-5]. Furthermore, these with a variety of metabolites. For example, the reaction of insulin-mimetic compounds can be administered orally. Vana- vanadate with the 2'-hydroxyl group of the cofactor NAD date enhances the phosphoprotein formation which is attrib- generates an NADP analog, NADV (path b) [22]. NADV is uted to either the activation of protein kinases or inhibition an excellent cofactor for enzymes such as glucose-6-phos- of protein phosphatases. Despite the interest in document- phate dehydrogenase, 6-phosphogluconate dehydrogenase, ing the effects of vanadate on protein kinases, most reports and alcohol dehydrogenase [22]. The presence ofNADV have used indirect methods and studies with purified kinases could affect the levels of reducing equivalents in the cell, im- show weak, if any, interaction of vanadate with kinases as portant in maintaining a normal glucose metabolism. This a group of enzymes (reviewed in Refs. [6-8]). Vanadate type of mechanism is distinct from the vanadate-induced interacts potently with phosphatases and the inhibition is NADH oxidation by plasma membranes [23]. Organic attributed to a five-coordinate vanadate complex which vanadates have been shown to substitute for organic phos- mimics the transition state of the phosphate ester hydroly- phates in many of the enzymes related to glucose metabolism sis reaction (reviewed in Refs. [7,9]).
The papers in this volume comprise invited reviews as well as original research papers presented at the Vanadium Symposium held July 29-31, 1994. Vanadium is a trace element and its compounds have been shown to exert a wide variety of insulin-like effects including the ability to lower hyperglycemia in several experimental models of diabetes mellitus. Because of the possibility that vanadium compounds may be able to serve as potential therapeutic agents for the treatment of diabetes, and possibly other diseases, this trace element has attracted the attention of biomedical researchers from a variety of fields. The Vanadium Symposium 1994 was therefore organized to facilitate exchange of ideas and increase interaction among researchers of different disciplines actively engaged in studying the biological actions of vanadium compounds. The papers are written by leading vanadium researchers and are grouped into three main sections: the chemistry; biochemical and physiological aspects; and potential therapeutic use and toxic effects of vanadium compounds.
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Gebunden. Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Preface A.K. Srivastava, J.-L. Chiasson. Chemistry. The chemistry of peroxovanadium compounds relevant to insulin mimesis A. Shaver, et al. Vanadium chemistry and biochemistry of relevance for use of vanadium compounds as antidiabetic agents D.C. Cra. Bestandsnummer des Verkäufers 5967609
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Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The papers in this volume comprise invited reviews as well as original research papers presented at the Vanadium Symposium held July 29-31, 1994. Vanadium is a trace element and its compounds have been shown to exert a wide variety of insulin-like effects including the ability to lower hyperglycemia in several experimental models of diabetes mellitus. Because of the possibility that vanadium compounds may be able to serve as potential therapeutic agents for the treatment of diabetes, and possibly other diseases, this trace element has attracted the attention of biomedical researchers from a variety of fields. The Vanadium Symposium 1994 was therefore organized to facilitate exchange of ideas and increase interaction among researchers of different disciplines actively engaged in studying the biological actions of vanadium compounds. The papers are written by leading vanadium researchers and are grouped into three main sections: the chemistry, biochemical and physiological aspects, and potential therapeutic use and toxic effects of vanadium compounds. A good source of information on vanadium chemistry and biology. Bestandsnummer des Verkäufers 9780792337621
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Zustand: New. The papers in this volume comprise reviews and research papers presented at the Vanadium Symposium held in 1994. The papers are grouped into three main sections: the chemistry; biochemical and physiological aspects; and potential therapeutic use and toxic effects of vanadium compounds. Editor(s): Srivastava, Ashok K.; Chiasson, Jean-Louis. Series: Developments in Molecular and Cellular Biochemistry. Num Pages: 252 pages, 5 black & white illustrations, biography. BIC Classification: MJG. Category: (P) Professional & Vocational; (UP) Postgraduate, Research & Scholarly. Dimension: 280 x 216 x 16. Weight in Grams: 885. . 1996. Reprinted from MOLECULAR AND CELLULAR BIOCHEMISTR. Hardback. . . . . Bestandsnummer des Verkäufers V9780792337621
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