Comparison of transfer and effects of Cd on rats exposed in a short experimental snail–rat food chain or to CdCl2 dosed food

Toxic effects of two sources of dietborne cadmium on the juvenile cobia, Rachycentron canadum L. and tissue-specific accumulation of related minerals

“…However, the mechanism for the difference in metal bioavailability between organic Cd and inorganic Cd is still unclear and worthy of further study. We agree with the hypothesis proposed by Hispard et al (2008): at a low pH level in the stomach, Cd is fully dissociated from MT, some part of MT amino acids may still be bound to Cd and are reabsorbed by intestinal cells in their original form leading to different uptake, distribution, metabolization and toxicodynamic from inorganic Cd.…”

“…Szczerbik et al (2006) also reported a significant decrease of appetite and growth rate Rattus norvegicusas well as the decrease of the locomotion activity in tilapia after exposure to dietary Cd. Hispard et al (2008) observed a decrease in growth and food consumption in rats R. norvegicusas fed inorganic form of Cd. A significant inverse relationship between weight gain and the exposure concentration of dietary Cd in rockfish, Sebastes schlegeli was also observed by Kim et al (2006).…”

Glyphosate and glufosinate-based herbicides: fate in soil, transfer to, and effects on land snails

“…5 Fresh mass of the different parts of the genital apparatus of H. aspersa not exposed (C) or exposed to Bypass® (By) or Basta® (Ba) in soil (S) or food (F) or both (SF) at treatment 1 or treatment 2 at 168 days. Bars represent standard deviation Beeby and Richmond 2002;Scheifler et al 2002;de Vaufleury et al 2006;Hispard et al 2007), few studies have reported such phenomenon for pesticides. Coeurdassier et al (2001) found a low accumulation of dimethoate in H. aspersa tissues exposed to artificially contaminated food and Schuytema et al (1994) did not find atrazine or azinphosmethyl bioaccumulation in the same species, probably in relation with the degradation of chemicals in tissues and/or to a low sensitivity of the analytical methods.…”

Biological transfer of dietary cadmium in relation to nitrogen transfer and 15N fractionation in a soil collembolan-predatory mite food chain

“…The BAF values of adults and juveniles of H. aculeifer were 0.20e1.13 and 0.09e0.51 except in the control in our study. The BAF values of predatory mites were higher than those of other similar predators such as the snail H. aspersa to the carabid beetle Chrysocarabus splendens at only 0.002 (Scheifler et al, 2002), from H. aspersa to the Wistar rat at 0.024 (Hispard et al, 2008) and from the oligochaete Lumbriculus variegatus to the rainbow trout Oncorhynchus mykiss at ). The H. aculeifer were fed Cd-contaminated F. candida (a, c) pre-exposed to Cd spiked yeast or wheat.…”

“…Although Cd concentrations in collembolans have been studied following exposure to Cd-spiked diets (Fountain and Hopkin, 2001;Ardestani et al, 2014), internal body Cd concentrations of predatory mites are poorly understood after exposure to Cd, and some studies have indicated that Cd can accumulate only in oribatid mites (Skubala and Kafel, 2004;Skubala and Zaleski, 2012). Studies on other animals suggest that Cd in the body tissue pool of prey is generally highly bioavailable to predators (Hispard et al, 2008;Ng and Wood, 2008;Xie et al, 2010). Janssen et al (1991) also showed that the Cd assimilation efficiency of other soil arthropod predators was higher than that in consumers.…”