Reciprocal connections between the amygdala and parabrachial nuclei: ultrastructural demonstration by degeneration and axonal transport of horseradish peroxidase in the cat

Yoshiki Takeuchi, John H. McLean, David A. Hopkins

Research output: Contribution to journalArticlepeer-review

108 Citations (Scopus)

Abstract

An ultrastructural analysis of the connections of the amygdala with the parabrachial nuclei (PBN) was carried out after electrolytic lesions or injections of horseradish peroxidase in the amygdala. Degenerating and labeled terminals originating from the amygdala formed axosomatic and axodendritic synapses in the PBN. In some instances, anterograde labeled terminals synapsed with retrogradely labeled neurons. These results demonstrate that the amygdala and PBN have close reciprocal synaptic connections.

Original languageEnglish
Pages (from-to)583-588
Number of pages6
JournalBrain Research
Volume239
Issue number2
DOIs
Publication statusPublished - May 13 1982

Bibliographical note

Funding Information:
The authorsw ould like to thank Mr. P. Wilkinson andM r. G. Allen for technical assistancaen d Ms. C. Anjowski andM s. P. Rowter for typing the manuscriptD. r. J. Rutherford madhee lpful suggestionsr egardingthe manuscript.T his work was supported by the Medical Research Council of Canada anda Killam Postdoctoral Fellowship.

ASJC Scopus Subject Areas

  • General Neuroscience
  • Molecular Biology
  • Clinical Neurology
  • Developmental Biology

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