منابع مشابه
Heavy metal exposure from foods.
The Food and Drug Administration has a continuing program of monitoring foods for their content of lead, cadmium, mercury, zinc, arsenic, and selenium to determine trends of increasing or decreasing levels. The monitoring protocol is that of the Total Diet Study, in which "market baskets" of typical foods and beverages consumed by 15- to 20-year-old American males are collected in various geogr...
متن کاملBenzalkonium chloride and heavy-metal tolerance in Listeria monocytogenes from retail foods.
Phenotypic and genotypic tolerance in 71 Listeria monocytogenes isolates from different varieties of foods to benzalkonium chloride (BC) and cadmium were investigated by susceptibility test and molecular methods. To investigate the role of efflux pumps in BC tolerance, reserpine, an efflux pump inhibitor, was added to the BC tolerant strains. Tolerance to BC and cadmium were 26.8% (19/71) and 4...
متن کاملLeaching of heavy metal from native plants by chemical leachants
Plant biomass harvested after heavy-metal phytoremediation must be considered as a hazardous waste that should be contained or treated appropriately before disposal or reuse. This study provides an evaluation of extractants for the removal of lead from Abutilon Theophrastus biomass. The research was carried out a leaching study to determine the lead-extraction efficiency of the different leacha...
متن کاملHeavy Metal Exposure Influences Double Strand Break DNA Repair Outcomes.
Heavy metals such as cadmium, arsenic and nickel are classified as carcinogens. Although the precise mechanism of carcinogenesis is undefined, heavy metal exposure can contribute to genetic damage by inducing double strand breaks (DSBs) as well as inhibiting critical proteins from different DNA repair pathways. Here we take advantage of two previously published culture assay systems developed t...
متن کاملHeavy metal exposure reverses genetic resistance to Chlamydia-induced arthritis
INTRODUCTION We have previously observed that Brown Norway (BN) rats display a relative resistance to experimental Chlamydia-induced arthritis. In the present study, we examine an environmental toxin, mercuric chloride (HgCl2), as a modulator of this innate resistance to arthritis. METHODS To assess the effect of the heavy metal exposure, one group of rats received two subcutaneous injections...
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ژورنال
عنوان ژورنال: Environmental Health Perspectives
سال: 1975
ISSN: 0091-6765,1552-9924
DOI: 10.1289/ehp.751263