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The present study has compared the neurobehavioral effects of two structurally different PCB congeners or their combination in rats. Time-mated Long-Evans rats received daily injections of the coplanar PCB 77 (3,4 3',4'-TCB: 0.5 or 1.5 mg/kg), the di-ortho-chlorinated PCB 47 (2,4,2',4'-TCB: 1.5 mg/kg) or a congener mixture (0.5 mg/kg PCB 77 + 1.0 mg/kg PCB(More)
The neurotoxic potential of polychlorinated biphenyls (PCBs) depends on the structure of the congener as well as on the age of the exposure. We exposed rats prenatally to a coplanar congener (PCB-77) or to a non-coplanar congener (PCB-47) and measured the amount of long-term potentiation (LTP) at postnatal days 11-19 in the visual cortex and hippocampus.(More)
The purpose of the present experiment was to evaluate the effects of developmental exposure to polychlorinated biphenyls (PCBs) on the visual system. Pregnant Long-Evans rats were treated with the ortho-chlorinated 2,2',4,4'-tetrachlorobiphenyl and/or with the coplanar 3,3',4,4'-tetrachlorobiphenyl. Total dose of PCBs was 18 mg/kg in all groups.(More)
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