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Cobalt: its role in health and disease.

Cobalt: its role in health and disease.

Metal ions in life sciences (2014-01-29)

Kazuhiro Yamada

RESUMEN

The primarily function of cobalt in humans is based on its role in cobalamin (Cbl, vitamin B12). Therefore, this chapter will focus on the physiological roles of Cbl and the importance of cobalt in human health. Cbl acts as the cofactor for two enzymes, i.e., methylmalonyl-CoA mutase and methionine synthase, in humans. Both enzymes are important for health. In addition, unlike other water-soluble vitamins, there is a unique absorption, delivery, and activation system for Cbl in mammals. Therefore, this chapter will also review the literature on the Cbl transporting system, which is crucial for Cbl function.

MATERIALES

Referencia del producto

Marca

Descripción del producto

Sigma-Aldrich

Cobalt, powder, 2 μm particle size, 99.8% trace metals basis

Sigma-Aldrich

Cobalt, powder, <150 μm, ≥99.9% trace metals basis

Sigma-Aldrich

Cobalt, granular, 99.99% trace metals basis

Sigma-Aldrich

Cobalt, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%

Sigma-Aldrich

Cobalt, pieces, 99.5% trace metals basis

Sigma-Aldrich

Cobalt, foil, thickness 0.1 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, rod, diam. 5.0 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, wire, diam. 1.0 mm, 99.995% trace metals basis

Cobalt, foil, 100x100mm, thickness 2.0mm, as rolled, 99.9%

Cobalt, foil, 100x100mm, thickness 1.0mm, as rolled, 99.9%

Sigma-Aldrich

Cobalt, foil, thickness 1.0 mm, 99.95% trace metals basis

Sigma-Aldrich

Cobalt, foil, thickness 0.1 mm, ≥99.99%

Cobalt, wire reel, 0.5m, diameter 0.05mm, hard, 99.9%

Cobalt, foil, 25x25mm, thickness 1.0mm, as rolled, 99.9%

Cobalt, foil, 100x100mm, thickness 0.25mm, as rolled, 99.9%

Cobalt, wire reel, 0.1m, diameter 0.5mm, hard, 99.99+%

Cobalt, wire reel, 0.1m, diameter 0.05mm, hard, 99.9%

Cobalt, wire reel, 0.05m, diameter 0.5mm, hard, 99.99+%

Cobalt, wire reel, 0.05m, diameter 0.25mm, hard, 99.99+%

Cobalt, foil, 6mm disks, thickness 0.008mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.01mm, 99.9%

Cobalt, microfoil, disks, 10mm, thinness 0.5μm, specific density 434μg/cm², permanent mylar 3.5μm support, 99.9%

Cobalt, foil, 100x100mm, thickness 0.5mm, as rolled, 99.99+%

Cobalt, foil, 50x50mm, thickness 0.7mm, annealed, 99.9%

Cobalt, foil, 8mm disks, thickness 0.006mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.007mm, 99.9%

Cobalt, foil, 8mm disks, thickness 0.009mm, 99.9%

Cobalt, foil, not light tested, 100x100mm, thickness 0.004mm, 99.9%

Cobalt, foil, not light tested, 100x100mm, thickness 0.02mm, 99.9%

Cobalt, foil, 10mm disks, thickness 0.015mm, 99.9%