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Prenatal exposure to polychlorinated biphenyls (PCBs) has been associated with a lower IQ in childhood. We have examined the effects of acute exposure to PCB mixtures and two single congeners on synaptic transmission between Schaffer collaterals and CA1 neurons of the rat hippocampus as well as posttetanic potentiation (PTP), paired pulse facilitation(More)
INTRODUCTION Respiratory tract infections are the major causes of morbidity and mortality in patients with cystic fibrosis. Nocardia are rarely implicated in these infections and few reports of the involvement of this species are found in the literature. CASE PRESENTATION We describe a case of lung infection followed by chronic colonization of(More)
Rat pups were made hypothyroid by exposure to propylthiouracil in drinking water beginning at 1 week of age, and the degree of long-term potentiation (LTP) in hippocampal area CA1 determined from brain slices of animals ranging in age from 2 to 6 weeks. Serum T3 levels were less than 20% of that of age matched controls after 3 weeks of treatment, and(More)
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