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Chronic developmental lead (Pb) exposure increases the threshold and enhances decay of long-term potentiation (LTP) in the dentate gyrus of the hippocampal formation. MK-801 and other antagonists of the N-methyl-d-aspartate (NMDA) glutamate receptor subtype impair induction of LTP. In addition, Pb exposure reduces presynaptic glutamate release and is associated with alterations in NMDA receptor expression...
Long-term potentiation (LTP) is a model of synaptic plasticity believed to encompass the underlying neurobiological mechanisms that support memory function. Chronic developmental lead (Pb) exposure is known to be associated with cognitive dysfunction in children and animals. Disruption of the induction of long-term potentiation (LTP) has been reported in the hippocampus following chronic exposure...
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