The FEBS journal
Cadmium is a heavy metal and a pollutant that can be found in large quantities in the environment from industrial waste. Its toxicity for living organisms could arise from its ability to alter thiol-containing cellular components. Glutathione is an abundant tripeptide (γ-Glu-Cys-Gly) that is described as the first line of defence against cadmium in...
Journal of environmental monitoring : JEM
Cadmium (Cd) tellurium quantum dots (QDs) are long-lived fluorescent nanocrystals that have the ability to produce potentially toxic reactive oxygen species at the surface of the nanoparticle and release toxic cadmium ions. The purpose of this study was to examine the sublethal effects of CdS/CdTe QDs and dissolved Cd on the immune system of rainbo...
American journal of industrial medicine
While excess risks due to these metal compounds were barely discernable among smokers, carcinogenic effects were seen among non-smokers.
CadA is a membrane protein of the P-type ATPase family which is the major determinant of the resistance to Cd2+ in Listeria monocytogenes. During its catalytic cycle, CadA undergoes auto-phosphorylation from ATP at Asp398, which allows Cd2+ translocation across the membrane. In the reverse mode, Asp398 is phosphorylated from Pi. From the data obtai...
Environmental pollution (Barking, Essex : 1987)
Juvenile Helix aspersa snails exposed in field microcosms were used to assess the transfer of Cd, Cu, Ni, Pb and Zn from forest soils amended with liquid and composted sewage sludge. Zn concentrations and contents were significantly higher in snails exposed to liquid and composted sludge after 5 and 7 weeks of exposure, when compared with control. ...
Environmental science & technology
Isotopic dilution techniques were initially used to evaluate the bioavailability of trace metals contained in soils to plants, i.e., the phytoavailability. Here, we use for the first time an isotopic technique to evaluate the zooavailability of cadmium (Cd), i.e., the bioavailability to an animal organism. A terrestrial invertebrate, the snail Heli...
Ecotoxicology and environmental safety
Juvenile Helix aspersa snails were exposed for 4 weeks to fresh rape leaves (Brassica napus), contaminated by simulating superficial deposits of increasing concentrations of cadmium (Cd). The Cd concentration in leaves was 0.1 in control and 38.4, 93.1, and 177.2 microg x g(-1) (dry mass) in Cd-treated food. The concentration in snail tissues incre...
The transfer and the toxic effects of Cd were studied in an experimental food chain involving the snail Helix aspersa as prey organism and one of its natural predators, the carabid beetle Chrysocarabus splendens. Juvenile snails were fed plant-based food enriched with 0, 10, 50 and 100 microg g(-1) of Cd, then were offered as prey to beetle larvae ...
International journal of toxicology
The cadmium, lead, copper, and zinc levels were measured in six organs (lung, liver, kidney, skin, muscle, and bone) from 18 specimens of toothed whales, belonging to five species, found stranded along the Corsican coast between November 1993 and December 1998. The five species examined were the bottlenose dolphin Tursiops truncatus, the common dol...