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Some PCB congeners and congener groups were negatively associated with testosterone in a population of Akwesasne Mohawk men with high PCB exposure (Goncharov et al.
Larry Robertson, a University of Iowa professor of environmental and occupational health, explains that since PCBs typically occur as mixtures of congeners, it is important to note that an individual congener's health effects should not be excluded when considering PCB toxicity, even if that congener is not dominant in a particular sample or mixture.
Possible mechanisms of thyroid hor-mone disruption in mice by BDE 47, a major polybrominated diphenyl ether congener.
population concentrations for each congener identified in the National Health and Nutrition Examination Survey (NHANES; Centers for Disease Control and Prevention 2009) to define the upper ends of the background ranges.
The most frequently quantified PBDE congener in colostrum was BDE-153 (75.
03); there were no other statistically significant trends between any PCB congener or PCB grouping and metastatic prostate cancer (Table 3; see also Supplemental Material, Table S3).
Detection limits differed by sample and congener, but represented a minor contribution to total dioxin concentration.
Red wine embraces large amounts of the congener methanol and vodka the least - the general rule being, the clearer the drink the fewer the congeners.
Considering the congener composition, PCB-66 was a major congener in the Ahja sample, followed by PCB-52, 118, 101, 138, 105, and 104, however, minor variation was observed for congener profiles from soils collected in 1964 and 1982 (Fig.
As both species are infested by the pre-dispersal seed predator, Apion rostrum Say (Coleoptera: Curculionidae) within the study site, the importance of seed predation as a conflicting variable to seed set of each congener was also studied.