Calcitonin Gene‐Related Peptide (CGRP)‐Containing Terminals in the Central Amygdala of Mice and Monkeys: Ultrastructural Analysis and Subsynaptic Expression of GluD1

PB (Parabrachial nucleus) MBA:867 synapses onto CEA (Central amygdalar nucleus) MBA:536 · Mouse

In the right CeA of 3 mice, CGRP-immunoreactive terminals, which the authors treat as the parabrachial input, formed synapses mainly on dendrites (about 57%), and also on spines (about 24%) and somata (about 19%). Synapses were roughly evenly split between symmetric and asymmetric, and about two thirds of CGRP+ terminals co-expressed vGluT2. The parabrachial origin is inferred from the CGRP marker; it was not traced in this study.

Figs. 2, 3, 4, 5; Results, Postsynaptic Targets of CGRP+ Terminals

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