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Hayashi B, Maeda M, Tsuruoka M, et al. Neural Mechanisms That Underlie Angina-Induced Referred Pain in the Trigeminal Nerve Territory: A c-Fos Study in Rats. ISRN Pain. 2013;2013:671503doi: 10.1155/2013/671503.
Hayashi, B., Maeda, M., Tsuruoka, M., & Inoue, T. (2013). Neural Mechanisms That Underlie Angina-Induced Referred Pain in the Trigeminal Nerve Territory: A c-Fos Study in Rats. ISRN Pain, 2013671503. https://doi.org/10.1155/2013/671503
Hayashi, Bunsho, et al. "Neural Mechanisms That Underlie Angina-Induced Referred Pain in the Trigeminal Nerve Territory: A c-Fos Study in Rats." ISRN Pain vol. 2013 (2013): 671503. doi: https://doi.org/10.1155/2013/671503
Hayashi B, Maeda M, Tsuruoka M, Inoue T. Neural Mechanisms That Underlie Angina-Induced Referred Pain in the Trigeminal Nerve Territory: A c-Fos Study in Rats. ISRN Pain. 2013 Jul 28;2013:671503. doi: 10.1155/2013/671503. eCollection 2013. PMID: 27335881; PMCID: PMC4893399.
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ISRN Pain. 2013 Jul 28;2013:671503. doi: 10.1155/2013/671503. eCollection 2013.

Neural Mechanisms That Underlie Angina-Induced Referred Pain in the Trigeminal Nerve Territory: A c-Fos Study in Rats.

ISRN Pain

Bunsho Hayashi, Masako Maeda, Masayoshi Tsuruoka, Tomio Inoue

Affiliations

  1. Department of Physiology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
  2. Department of Physiology, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan; Department of Physical Therapy, Teikyo Heisei University Faculty of Community Health Care, 4-1 Uruido Minami, Ichihara, Chiba 290-0193, Japan.

PMID: 27335881 PMCID: PMC4893399 DOI: 10.1155/2013/671503

Abstract

The present study was designed to determine whether the trigeminal sensory nuclear complex (TSNC) is involved in angina-induced referred pain in the trigeminal nerve territory and to identify the peripheral nerve conducting nociceptive signals that are input into the TSNC. Following application of the pain producing substance (PPS) infusion, the number of Fos-labeled cells increased significantly in the subnucleus caudalis (Sp5C) compared with other nuclei in the TSNC. The Fos-labeled cells in the Sp5C disappeared when the left and right cervical vagus nerves were sectioned. Lesion of the C1-C2 spinal segments did not reduce the number of Fos-labeled cells. These results suggest that the nociceptive signals that conduct vagal afferent fibers from the cardiac region are input into the Sp5C and then projected to the thalamus.

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