in order to better understand the extent of soil pollution by heavy metals and its effect on ecosystem, spatial information on ecological impacts of heavy metals would be necessary. therefore, in the present study, the spatial pattern of ecological risk of heavy metals (cadmium, lead, copper, nickel and zinc) have been identified in surface soils of golestan province. to this end, over 346 surf...

An isolated rat hepatocyte preparation was used to study the cellular toxicity of cadmium and the protective effects of metallothionein on cadmium-induced toxicity. Exposure of primary suspension cultures of isolated rat hepatocytes to Cd2+ (0-35.7 microM) for 15 min resulted in a dose-dependent reduction in the synthesis of cellular proteins during a subsequent 6 h incubation. Such inhibition ...

Pfaffia glomerata (Spreng.) Pedersen plantlets were grown under different cadmium (Cd) concentrations (0, 20, 40, 60 and 80 μM) in a hydroponic system during 7 d. Plant growth, micronutrient, chlorophyll and carotenoid concentrations, as well as δ-aminolevulinic acid dehydratase (ALA-D; E.C.4.2.1.24) and acid phosphatase (AP; E.C.3.1.3.2) activities were analysed. Cadmium concentration in both ...

The effects of dietary cadmium on copper and zinc metabolism in animals are described. Emphasis is given to situations involving chronic exposure to low levels of cadmium, to the identification of population groups most at risk, and to the protective effect of dietary supplementation with copper and zinc. The mechanism of the interaction between the metals and the involvement of metallothionein...

AbstractCadmium, cobalt, chromium, copper, manganese, nickel, zinc and lead concentrations were detected in feathers of Buff-breasted Sandpipers (Calidris subruficollis) captured during the non-breeding season and analyzed with relationship to body mass. Of these metals tested for, only copper levels (2.28 µg/g) were positively correlated with bird body mass. Zinc levels showed higher concentra...