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Effect of a deficiency of ceruloplasmin copper in blood plasma on copper metabolism in the brain. 2009

P S Babich, and N V Tsymbalenko, and S A Klotchenko, and N A Platonova, and O O Masalova, and E A Zatulovski, and M M Shavlovskii, and N S Sapronov, and L V Puchkova
Institute of Experimental Medicine, Russian Academy of Medical Sciences, St. Petersburg, Russia.

Copper deficiency in adult rats was induced by addition of silver chloride to the feed. The concentrations of silver, copper, iron, and zinc and relative activity of genes for copper transporting proteins and copper enzymes were measured in the cortex, cerebellum, hippocampus, amygdala, pituitary gland, and hypothalamus. Silver was accumulated only in the hypothalamic-pituitary system. These changes were accompanied by a decrease in the concentration of copper and increase in the contents of iron and zinc. Activity of genes for copper transport enzymes (high-affinity copper transporter; and two copper transport ATPases, ATP7A and ATP7B) and copper enzymes that were formed in the intracellular secretory pathway did not decrease in the brain of rats with copper deficiency. Relative activity of genes for intracellular copper enzymes (Cu(2+)/Zn(2+) superoxide dismutase and subunit IV of cytochrome c oxidase), concentration of immunoreactive polypeptides of superoxide dismutase, and enzymatic activity of superoxide dismutase remained unchanged under these conditions.

UI MeSH Term Description Entries
D007501 Iron A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN. Iron-56,Iron 56
D008297 Male Males
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D002570 Ceruloplasmin A multi-copper blood FERROXIDASE involved in iron and copper homeostasis and inflammation. Caeruloplasmin,Ferroxidase,Ceruloplasmin Ferroxidase,Ceruloplasmin Oxidase,Ferroxidase I,alpha(2)-Ceruloplasmin,Ferroxidase, Ceruloplasmin,Oxidase, Ceruloplasmin
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D003576 Electron Transport Complex IV A multisubunit enzyme complex containing CYTOCHROME A GROUP; CYTOCHROME A3; two copper atoms; and 13 different protein subunits. It is the terminal oxidase complex of the RESPIRATORY CHAIN and collects electrons that are transferred from the reduced CYTOCHROME C GROUP and donates them to molecular OXYGEN, which is then reduced to water. The redox reaction is simultaneously coupled to the transport of PROTONS across the inner mitochondrial membrane. Cytochrome Oxidase,Cytochrome aa3,Cytochrome-c Oxidase,Cytochrome Oxidase Subunit III,Cytochrome a,a3,Cytochrome c Oxidase Subunit VIa,Cytochrome-c Oxidase (Complex IV),Cytochrome-c Oxidase Subunit III,Cytochrome-c Oxidase Subunit IV,Ferrocytochrome c Oxygen Oxidoreductase,Heme aa3 Cytochrome Oxidase,Pre-CTOX p25,Signal Peptide p25-Subunit IV Cytochrome Oxidase,Subunit III, Cytochrome Oxidase,p25 Presequence Peptide-Cytochrome Oxidase,Cytochrome c Oxidase,Cytochrome c Oxidase Subunit III,Cytochrome c Oxidase Subunit IV,Oxidase, Cytochrome,Oxidase, Cytochrome-c,Signal Peptide p25 Subunit IV Cytochrome Oxidase,p25 Presequence Peptide Cytochrome Oxidase
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000073840 Copper-Transporting ATPases P-type ATPases which transport copper ions across membranes in prokaryotic and eukaryotic cells. They possess a conserved CYSTEINE-HISTIDINE-SERINE (CPx) amino acid motif within their transmembrane helices that functions in cation translocation and catalytic activation, and an N-terminal copper-binding CxxC motif that regulates enzyme activity. They play essential roles in intracellular copper homeostasis through regulating the uptake, efflux and storage of copper ions, and in cuproprotein biosynthesis. ATP7B Cu-Binding P Type ATPase,ATPase, Cu++ Transporting, beta Polypeptide (Wilson Disease),Copper-Transporting ATPase,Copper-Transporting ATPase 1,Copper-Transporting ATPase 2,Copper-Transporting Adenosine Triphosphatases,Cu(+)-Transporting ATPases,Cu-Transporting ATPases,Menkes Disease-Associated Protein,Pineal Night-Specific ATPase,Wilson Disease Cu-Binding P Type ATPase,ATP7A Protein,ATPase Copper Transporting alpha,Copper Pump 1,PINA Enzyme,Wilson Disease Protein,ATP7B Cu Binding P Type ATPase,ATPase 1, Copper-Transporting,ATPase 2, Copper-Transporting,ATPase, Copper-Transporting,ATPase, Pineal Night-Specific,ATPases, Copper-Transporting,ATPases, Cu-Transporting,Adenosine Triphosphatases, Copper-Transporting,Copper Transporting ATPase,Copper Transporting ATPase 1,Copper Transporting ATPase 2,Copper Transporting ATPases,Copper Transporting Adenosine Triphosphatases,Cu Transporting ATPases,Menkes Disease Associated Protein,Night-Specific ATPase, Pineal,Pineal Night Specific ATPase,Triphosphatases, Copper-Transporting Adenosine,Wilson Disease Cu Binding P Type ATPase

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