Showing 1-22 of 22 resultados for "36905"
Ana Passuello et al.
Environment international, 36(6), 577-583 (2010-05-18)
Because of its benefits to soil and crops, sewage sludge application on agricultural soils is a managing practice of increasing use. However, this practice may lead to contamination of the food chain, especially by persistent organic pollutants (POPs). The main...
S Correia Carreira et al.
Placenta, 32(3), 283-291 (2011-01-18)
Currently, toxicology and toxicokinetics of purified non-dioxin-like polychlorinated biphenyls (NDL-PCBs) are poorly characterised. Transplacental kinetics of NDL-PCBs can be studied in a variety of models, but careful validation of each model is crucial. We aimed to develop a standard operating...
Hellmuth Lilienthal et al.
Toxicology letters, 224(1), 32-39 (2014-01-25)
Since knowledge about toxic effects of non-dioxinlike (NDL) PCBs is fragmentary, regulatory panels have concluded that risk assessment of these congeners is hampered or impossible. As the dopaminergic system is one of the main targets in PCB-related neurotoxic effects after...
Robert Roos et al.
Toxicology, 284(1-3), 42-53 (2011-04-05)
PCB 180 (2,2',3,4,4',5,5'-heptachlorobiphenyl) is a persistent and accumulating polychlorinated biphenyl abundantly present in food and the environment. In this study, we used highly purified PCB 180 (dioxinlike impurities: 2.7 ng TEQ(WHO)/g PCB 180) in a 28-day toxicity study in young...
G M Lackmann et al.
Pediatric research, 47(5), 598-601 (2000-05-17)
Polychlorinated biphenyls (PCB) and hexachlorobenzene (HCB) are ubiquitous compounds that have tumor-promoting properties if applied together with tobacco-specific carcinogens. It was the purpose of the present study to investigate whether parental smoking by itself will increase the prenatal uptake of...
M C Ferrante et al.
Toxicology letters, 202(1), 61-68 (2011-02-05)
Non-dioxin-like polychlorinated biphenyls (PCBs) are stable and lipophilic chemicals that persist in the environment and tend to bioaccumulate in the food chains. In the present study, we have investigated the effect of PCBs 101, 153, and 180 on macrophage J774A.1...
U Uslu et al.
Human & experimental toxicology, 32(5), 476-482 (2013-03-22)
In this study, we investigated the effects of polychlorinated biphenyls (PCBs) and organochlorinated pesticides on the serum levels of luteinising hormone (LH), follicle stimulating hormone (FSH) and weights and histomorphometry of uterine tissue in immature female rats using uterotrophic assay....
Roshan Tofighi et al.
Toxicological sciences : an official journal of the Society of Toxicology, 124(1), 192-201 (2011-09-13)
Developmental exposure to food contaminants, such as polychlorinated biphenyls (PCBs), has been considered as a possible cause of neurodevelopmental disorders. We have investigated the effects of noncytotoxic concentrations of PCBs 153 and 180 on spontaneous differentiation of rat embryonic neural...
Johan Maervoet et al.
Environmental toxicology and chemistry, 24(3), 597-602 (2005-03-23)
Fertilized chicken eggs were injected with high doses of individual polychlorinated biphenyl (PCB) congeners (0.5 microg of PCB 77, 9.8 microg of PCB 153, or 10.9 microg of PCB 180) before incubation to investigate the structure-specific uptake of these compounds...
Matti Viluksela et al.
PloS one, 9(8), e104639-e104639 (2014-08-20)
PCB 180 is a persistent non-dioxin-like polychlorinated biphenyl (NDL-PCB) abundantly present in food and the environment. Risk characterization of NDL-PCBs is confounded by the presence of highly potent dioxin-like impurities. We used ultrapure PCB 180 to characterize its toxicity profile...
Elsa C Antunes-Fernandes et al.
Toxicology letters, 206(2), 158-165 (2011-07-26)
Traditional risk assessment of potential endocrine-disruptive pollutants, including PCBs, focus mainly on the effects of parent compounds. Still, biotransformation results in systemic exposure to PCBs and their bioactive metabolites. In the present paper, the effects of twenty ultra-pure non-dioxin-like (NDL)...
Joanne S Colt et al.
Blood, 113(9), 1899-1905 (2008-12-11)
Organochlorine exposure was linked to non-Hodgkin lymphoma (NHL) risk. To determine whether this relation is modified by immune gene variation, we genotyped 61 polymorphisms in 36 immune genes in 1172 NHL cases and 982 controls from the National Cancer Institute-Surveillance...
J Boix et al.
Neuroscience, 167(4), 994-1003 (2010-03-13)
Exposure to polychlorinated biphenyls (PCBs) during pregnancy and lactation leads to cognitive impairment and motor disorders in children by mechanisms which remain unknown. It also remains unclear whether different non-dioxin-like PCBs have similar or different mechanisms of neurotoxicity. The main...
Thomas Schettgen et al.
Toxicology letters, 213(1), 116-121 (2011-06-28)
The release of PCBs from sealant material in public buildings and the resulting indoor air levels have raised growing concerns about possible human health effects connected with this exposure. Ambient monitoring of PCBs in a public building has revealed a...
Jordi Boix et al.
Neurochemistry international, 58(1), 69-77 (2010-11-09)
Developmental exposure to polychlorinated biphenyls (PCBs) induces motor alterations in humans by unknown mechanisms. It remains unclear whether: (a) all non-dioxin-like (NDL) PCBs are neurotoxic or it depends on the grade of chlorination; (b) they have different neurotoxicity mechanisms; (c)...
Fadheela Al-Salman et al.
Toxicology and applied pharmacology, 263(1), 7-13 (2012-06-06)
The polychlorinated biphenyl group possesses high environmental persistence, leading to bioaccumulation and a number of adverse effects in mammals. Whilst coplanar PCBs elicit their toxic effects through agonism of the aryl hydrocarbon receptor; however, non-coplanar PCBs are not ligands for...
Marta Llansola et al.
Chemical research in toxicology, 23(4), 813-820 (2010-03-20)
Polychlorinated biphenyls (PCBs) are persistent organic pollutants that accumulate in the food chain and are present in human blood and milk. Children born to mothers exposed to PCBs show cognitive deficits, which are reproduced in rats perinatally exposed to PCBs....
Irene Stemmler et al.
Environmental science and pollution research international, 19(6), 1971-1980 (2012-07-07)
Continental-scale distribution and inter-continental transport of four polychlorinated biphenyl (PCB) congeners (28, 101, 153, 180) from 1950 to 2010 were studied using the global multicompartment chemistry transport model MPI-MCTM. Following identical primary emissions for all PCB congeners into air, most...
Barry C Kelly et al.
Science (New York, N.Y.), 317(5835), 236-239 (2007-07-14)
Substances that accumulate to hazardous levels in living organisms pose environmental and human-health risks, which governments seek to reduce or eliminate. Regulatory authorities identify bioaccumulative substances as hydrophobic, fat-soluble chemicals having high octanol-water partition coefficients (K(OW))(>/=100,000). Here we show that...
Espen Borgå Johansen et al.
Behavioral and brain functions : BBF, 7, 18-18 (2011-05-28)
Polychlorinated biphenyls (PCBs) are a class of organic compounds that bioaccumulate due to their chemical stability and lipophilic properties. Humans are prenatally exposed via trans-placental transfer, through breast milk as infants, and through fish, seafood and fatty foods as adolescents...
Milena Cerná et al.
Chemosphere, 72(8), 1124-1131 (2008-06-13)
In 2006, levels of seven indicator polychlorinated biphenyl congeners (PCB28, 52, 101, 118, 138, 153, and 180) in blood serum of 202 blood donors residing for more than 2 years in five urban areas included in the Czech Human Biomonitoring...
Jordi Sunyer et al.
Epidemiology (Cambridge, Mass.), 21(5), 729-735 (2010-07-10)
Dichlorodiphenyldichloroethylene (DDE) and other organochlorines suppress immunity biomarkers in animals and humans. Our aim was to study the association between prenatal levels of DDE and lower respiratory tract infection in infants independently from polychlorinated biphenyls (PCBs) and other organochlorines. Maternal...

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