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Inhibitory neurotransmission in amygdala is important for fear learning and memory. However, mechanisms that control the inhibitory activity in amygdala are not well understood. We provide evidence that neuregulin 1 (NRG1) and its receptor ErbB4 tyrosine kinase are critical for maintaining GABAergic activity in amygdala. Neutralizing endogenous NRG1, inhibition, or genetic ablation of ErbB4, which...
Neuregulin-1 (NRG1), a regulator of neural development, has been shown to regulate neurotransmission at excitatory synapses. Although ErbB4, a key NRG1 receptor, is expressed in glutamic acid decarboxylase (GAD)-positive neurons, little is known about its role in GABAergic transmission. We show that ErbB4 is localized at GABAergic terminals of the prefrontal cortex. Our data indicate a role of NRG1,...
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