Topography and distribution of sympathetic nerve fibers in the rat temporomandibular joint

Immunocytochemistry and ultrastructure

Mizuho A. Kido, Jing Qi Zhang, Harue Muroya, Takayoshi Yamaza, Yoshihiro Terada, Teruo Tanaka

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The distribution and fine structure of nerve fibers containing neuropeptide Y (NPY), tyrosine hydroxylase (TH), and vasoactive intestinal polypeptide (VIP) in the temporomandibular joint were investigated by both the avidin-biotin complex method and an indirect immunofluorescence technique. The innervation pattern of NPY- and TH-positive fibers differed from that of VIP-positive fibers. Specifically, the former was distributed in both the superficial and deep sublining layers, while the latter was mostly located in the deep sublining layer. NPY- and TH-immunoreactive fibers were largely confined to vascular elements; occasional fibers were observed in the synovial lining layer close to the joint cavity. More nerves with NPY and TH immunoreactivity were observed close to the upper joint compartment than near the lower compartment NPY and TH immunoreactivity was dramatically reduced in the TMJ of superior cervical ganglionectomized animals, indicating the sympathetic origin of these nerves. NPY immunoreactivity was found only in unmyelinated axons, which were located in the adventitia and adventitia-medial border of arteries or arterioles. Occasionally, axons were near the joint cavity, in areas free of vascular structures. These observations show that abundant sympathetic nerves supply the temporomandibular joint of the rat and provide a morphological basis for the involvement of different neuropeptides in vascular regulatory and modulatory functions in physiological and pathophysiological conditions.

Original languageEnglish
Pages (from-to)357-366
Number of pages10
JournalAnatomy and Embryology
Volume203
Issue number5
DOIs
Publication statusPublished - 2001

Fingerprint

Adrenergic Fibers
Neuropeptide Y
Temporomandibular Joint
Nerve Fibers
Immunohistochemistry
Tyrosine 3-Monooxygenase
Blood Vessels
Adventitia
Joints
Vasoactive Intestinal Peptide
Axons
Avidin
Arterioles
Indirect Fluorescent Antibody Technique
Biotin
Neuropeptides
Arteries

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Developmental Biology
  • Cell Biology
  • Embryology

Cite this

Topography and distribution of sympathetic nerve fibers in the rat temporomandibular joint : Immunocytochemistry and ultrastructure. / Kido, Mizuho A.; Zhang, Jing Qi; Muroya, Harue; Yamaza, Takayoshi; Terada, Yoshihiro; Tanaka, Teruo.

In: Anatomy and Embryology, Vol. 203, No. 5, 2001, p. 357-366.

Research output: Contribution to journalArticle

Kido, Mizuho A. ; Zhang, Jing Qi ; Muroya, Harue ; Yamaza, Takayoshi ; Terada, Yoshihiro ; Tanaka, Teruo. / Topography and distribution of sympathetic nerve fibers in the rat temporomandibular joint : Immunocytochemistry and ultrastructure. In: Anatomy and Embryology. 2001 ; Vol. 203, No. 5. pp. 357-366.
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