Document Detail

Effect of CoCl(2) treatment on major and trace elements metabolism and protein concentration in mice.
MedLine Citation:
PMID:  22944586     Owner:  NLM     Status:  Publisher    
Cobalt (Co) is a transition metal and an essential trace element, required for vitamin B(12) biosynthesis, enzyme activation and other biological processes, but toxic in high concentrations. There is lack of data for the effect of long-term Co(II) treatment on the concentrations of other trace elements. We estimate the influence of cobalt chloride (CoCl(2)) on the relative content of different metals in mouse plasma using two-jet arc plasmatron atomic emission and on the total protein content. On average, the content of different elements in the plasma of 2-month-old balb/c mice (control group) decreased in the order: Ca>Mg>Si>Fe>Zn>Cu≥Al≥B. The treatment of mice for 60days with CoCl(2) (daily dose 125mg/kg) did not appreciably change the relative content of Ca, Cu, and Zn, while a 2.4-fold statistically significant decrease in the content of B and significant increase in the content of Mg (1.4-fold), Al and Fe (2.0-fold) and Si (3.2-fold) was found. A detectable amount of Mo was observed only for two control mice, while the plasma of 9 out of 16 mice of the treated group contained this metal. The administration of Co made its concentration detectable in the plasma of all mice of the treated group, but the relative content varied significantly. The treatment led to a 2.2-fold decrease in the concentration of the total plasma protein. Chronic exposure to CoCl(2) affects homeostasis as well as the concentrations and metabolism of other essential elements, probably due to competition of Co ions for similar binding sites within cells, altered signal transduction and protein biosynthesis. Long-term treatment also leads to significant weight changes and reduces the total protein concentration. The data may be useful for an understanding of Co toxicity, its effect on the concentration of other metal ions and different physiological processes.
Nataliya Zaksas; Yordanka Gluhcheva; Sergey Sedykh; Maria Madzharova; Nina Atanassova; Georgy Nevinsky
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-31
Journal Detail:
Title:  Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS)     Volume:  -     ISSN:  1878-3252     ISO Abbreviation:  J Trace Elem Med Biol     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-9-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508274     Medline TA:  J Trace Elem Med Biol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier GmbH. All rights reserved.
Institute of Inorganic Chemistry, Siberian Division of Russian Academy of Sciences, 10 Lavrentieva Ave., Novosibirsk 630090, Russia.
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