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Rat

PB (Parabrachial nucleus) projects to VTA (Ventral tegmental area)

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

The claims behind it

clm-mfgzj668sbpresentretrograde tracerstrength: strongproposed

Tetramethylrhodamine-dextran injected into the right VTA retrogradely labeled many LPB neurons bilaterally with an ipsilateral predominance. About 27% of these cells were CGRP-positive, and about 13% were also labeled from the CeA injection, consistent with axon collaterals to both targets.

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.