Biology of Metals
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Dental amalgam and mercury
Biology of Metals - Tập 2 - Trang 25-30 - 1989
Mercury concentration in intraoral air and urine of seven females with dental amalgam was measured before and after intake of one hard-boiled egg. A considerable decrease in mercury concentration in intraoral air was found. Twenty women with about equal dental amalgam status, with or without subjective symptoms related to dental amalgam, were also studied. Mercury concentrations in intraoral air a......
Analytical studies on the incorporation of aluminium in the cell walls of the marine diatom Stephanopyxis turris
Biology of Metals - Tập 26 - Trang 141-150 - 2012
The eukaryotic diatoms are unicellular algae. They are well known for their filigree micro- and nanostructured cell walls which mainly consist of amorphous silica as well as various organic compounds. However, diatoms are also known to incorporate certain amounts of aluminium into their cell walls. Unexpectedly, enhanced Al concentrations in the Southern Yellow Sea were found to be correlated with......
Prooxidant Action of Maltol: Role of Transition Metals in the Generation of Reactive Oxygen Species and Enhanced Formation of 8-hydroxy-2′-deoxyguanosine Formation in DNA
Biology of Metals - Tập 19 - Trang 253-257 - 2006
Maltol (3-hydroxy-2-methyl-4-pyrone) produced reactive oxygen species as a complex with transition metals. Maltol/iron complex inactivated aconitase the most sensitive enzyme to oxidative stress. The inactivation of aconitase was iron-dependent, and prevented by TEMPOL, a scavenger of reactive oxygen species, suggesting that the maltol/iron-mediated generation of superoxide anion is responsible fo......
Molecular analysis of iron transport in plant growth-promotingPseudomonas putida WCS358
Biology of Metals - Tập 4 - Trang 36-40 - 1991
Root-colonizingPseudomonas putida WCS358 enhances growth of potato in part by producing under iron-limiting conditions a yellow-green, fluorescent siderophore designated pseudobactin 358. This siderophore efficiently complexes iron(III) in the rhizosphere, making it less available to certain endemic microorganisms, including phytopathogens, thus inhibiting their growth. At least 15 genes distribut......
Characterization of siderophore-mediated iron transport inGeotrichum candidum, a non-siderophore producer
Biology of Metals - Tập 2 - Trang 209-213 - 1990
Geotrichum candidum is capable of utilizing iron from hydroxamate siderophores of different structural classes. The relative rates of iron transport for ferrichrome, ferrichrysin, ferrioxamine B, fusigen, ferrichrome A, rhodotorulic acid, coprogen B, dimerium acid and ferrirhodin were 100%, 98%, 74%, 59%, 49%, 35%, 24%, 12% and 11% respectively. Ferrichrome, ferrichrysine and ferrichrome A inhibi......
Erratum to: Lactoferrin, myeloperoxidase, and ceruloplasmin: complementary gearwheels cranking physiological and pathological processes
Biology of Metals - - 2014
The many “faces” of copper in medicine and treatment
Biology of Metals - Tập 27 - Trang 611-621 - 2014
Copper (Cu) is an essential microelement found in all living organisms with the unique ability to adopt two different redox states—in the oxidized (Cu2+) and reduced (Cu+). It is required for survival and serves as an important catalytic cofactor in redox chemistry for proteins that carry out fundamental biological functions, important in growth and development. The deficit of copper can result in......
New perspectives on S100 proteins: a multi-functional Ca 2+ -, Zn 2+ - and Cu 2+ -binding protein family
Biology of Metals - Tập 11 - Trang 383-397 - 1998
S100 proteins (16 members) show a very divergent pattern of cell- and tissue-specific expression, of subcel-lular localizations and relocations, of post-translational modifications, and of affinities for Ca 2+ , Zn 2+ , and Cu 2+ , consistent with their pleiotropic intra- and extracellular functions. Up to 40 target proteins are reported to interact with S100 proteins and for S100A1 alone 15 targe......
Transition metal homeostasis: from yeast to human disease
Biology of Metals - Tập 24 - Trang 785-809 - 2011
Transition metal ions are essential nutrients to all forms of life. Iron, copper, zinc, manganese, cobalt and nickel all have unique chemical and physical properties that make them attractive molecules for use in biological systems. Many of these same properties that allow these metals to provide essential biochemical activities and structural motifs to a multitude of proteins including enzymes an......
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