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Rat

PB (Parabrachial nucleus) projects to CEA (central amygdaloid nucleus)

1 claim from 1 source: 1 found, 0 tested and absent, 0 ambiguous. Evidence: retrograde tracer. Strongest reported: strong.

The claims behind it

clm-3tqtpe6c7kpresentretrograde tracerstrength: strongproposed

Fluoro-gold injected into the right CeA retrogradely labeled many neurons across the rostrocaudal LPB, on both sides but mostly ipsilateral. About 86% of these FG-labeled cells were CGRP-immunoreactive, and about 11% were also labeled from a VTA injection, indicating collateral projections.

DOI 10.1002/ar.23983 · PubMed 30332715 · PMC6618262, Results, 'Neurons in the LPB Sent Collateral Projections to the CeA and VTA'; Fig. 2; Tables 1-2

Made by an AI model reading the paper (claude-opus-5-5, extract@0.3.0); a second AI model (claude-opus-5-5) agrees.