Mechanisms of action of vanadium.
Mechanisms of action of vanadium.
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钒的作用机制。
DOI:
10.1146/annurev.pa.24.040184.002441
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发表时间:
1984
影响因子:
12.5
通讯作者:
B. R. Nechay
中科院分区:
文献类型:
--
作者:
B. R. Nechay
Vanadium is widely distributed, the twenty-first most abundant element in the Earth's crust, with an average content of 135 ppm. In sea water, vanadium ranks thirty-fourth in abundance, with an average concentration of only 2 ppb. Because it evolved as an essential element for certain forms of life and also because of its wide industrial use, the biological actions of vanadium are of interest to scientists. Excellent accounts of the history and previous know ledge of vanadium are available. (1-7). The chemistry of vanadium is complex because the metal can exist in oxidation states from -1 to +5 and forms polymers frequently (8). Recently Rubinson (9) reviewed the material concerning the form of biochemically active vanadium. The following generalizations appear justified. At low normal concentrations in mammals and birds, any free vanadium will be in hydrated, monomeric form. In the body fluids at pH 4-8, the predominant species will be VOi ( + 5 oxidation state), vanadate (metavanadate). VOi may enter certain cells by an anion transport system and be reduced by glutathione to VOH (+4 oxidation state), vanadyl. By way of speculation, the oxidation reduction reactions may be as follows: H+ + VOi + 2GSH � Y02+ + G2S2 + OH+ e + H20. Extensive binding to extraand intracellular ligands may be expected. Since phosphate and Mg2+ are ubiquitous in biological processes, YOi as the analogue of phosphate and Y02+, which resembles the size of Mg2+ (respective ionic radii: 0.60 and 0.65 ft.), potentially have many bio chemical and cellular sites of action. For example, vanadium compounds in hibit ATP phosphohydrolases, ribonuclease, adenylate kinase, phosphofructo kinase, squalene synthetase, glyceraldehyde-3-phosphate dehydrogenase (10),
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DOI:
--
发表时间:
1982
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Chasteen,ND;Theil,EC
通讯作者:
Theil,EC
DOI:
10.1002/cm.970020720
发表时间:
1982
期刊:
Progress in clinical and biological research
影响因子:
--
作者:
Johnson,KA;Porter,ME
通讯作者:
Porter,ME
DOI:
10.1152/ajprenal.1981.240.6.f522
发表时间:
1981
期刊:
The American journal of physiology
影响因子:
--
作者:
Westenfelder,C;Hamburger,RK;Garcia,ME
通讯作者:
Garcia,ME
DOI:
--
发表时间:
1983
期刊:
Federation proceedings
影响因子:
--
作者:
Akera,T;Temma,K;Takeda,K
通讯作者:
Takeda,K
影响因子:
--
作者:
Herzig,JW;Peterson,JW;Solaro,RJ;Rüegg,JC
通讯作者:
Rüegg,JC