The oral administration of chlorate salts reduces the numbers of Gram-negative pathogens in gastrointestinal tracts of live food animals. Although the efficacy of chlorate salts has been demonstrated repeatedly, the technology cannot be introduced into commercial settings without first demonstrating that chlorate residues, and metabolites of chlorate remaining in edible tissues, represent a neg...

Wistar albino rats were exposed to 30 or 100 ppm fluoride in drinking water during their fetal, weanling and post-weaning stages of life up to puberty. Extent of lipid peroxidation and response of the antioxidant systems in red blood cells and plasma to prolonged fluoride exposure were assessed in these rats in comparison to the control rats fed with permissible level (0.5 ppm) of fluoride. Rat...

Objective: The aim of the current study was to evaluate adverse effects of Zataria multiflora essential oil on epididymal sperm quality, and testicular tissue following experimentally induced copper poisoning in mice. Methods: The study comprised of four different groups of twelve mice as follows: Group N (Normal) and group Cu (Copper) received pure drinking water, while Groups Z (Zataria multi...

This study aims to characterize salmonid manures and to determine their potential use in agricultural soils. Sampling was carried out below salmon and trout cages in farms located in lakes and in the sea in the South of Chile during 2002-2003. Manure was analyzed for macronutrients, micronutrients and heavy metals. Results showed a high variability between samples and differences between sea an...

The Effect of Methylmercury. Tetraethyl Lead. and Sodium Arsenite on the Humoral Immune Response in Mice. BLAKLEY. B. R .. SISODIA. C. S .. AND MUKKUR. T. K. ( 19801. Toxicol. Appl. Pharmacol. 52, 245-254. Male mice were exposed to methylmercury. tetraethyl lead. or sodium arsenite for 3 weeks in the drinking water at three or four con· centrations ranging from 0.5 to 10.0 ppm. The humoral comp...

background and aims. the aim of the present study was to systematically review fluoride concentration of drinking waters and prevalence of fluorosis in iran through systematically evaluating results of studies conducted in this regard. materials and methods. in this systematic review study, the required data was collected using keywords including drinking water fluoride, fluoride concentration,...

Evidence implicating oxidative stress in toxicity during lead intoxication in vivo has opened new avenues for investigation of the mechanisms of lead-induced immunosuppression. The current study explores the possibility that lead-induced oxidative stress contributes to the immunosuppression observed during lead poisoning. Fisher 344 rats were exposed to 2,000 ppm lead acetate in their drinking ...

Early chronic lead exposure continues to pose serious health risks for children, particularly those living in lower socioeconomic environments. This study examined effects on developing glomeruli in young C57BL/6J mice exposed to low (30 ppm), higher (330 ppm) or no lead via dams' drinking water from birth to sacrifice on post-natal day 28. Low-level lead exposed mice [BLL mean (SD); 3.19 (0.70...

Wistar rats were given 20 ppm fluoride in drinking water, or single administration of 115 mg/kg alloxan i.m. to induce diabetes, or single administration of 115 mg/kg alloxan i.m. followed by 20 ppm fluoride for 31 days. Blood sugar level increased in rats given alloxan and alloxan + fluoride. Body weight gain in rats given alloxan + fluoride decreased significantly compared to other groups. De...