Quantitative analysis of tooth pulp afferent terminals in the rat brain stem

Yong Chul Bae; Sang Kyoo Paik; Kuk Pil Park; Su Kyung Ma; Jong Gil Jin; Dong Kuk Ahn; Sung Kyo Kim; Masayuki Moritani; Atsushi Yoshida

doi:10.1097/00001756-200411150-00011

Quantitative analysis of tooth pulp afferent terminals in the rat brain stem

Yong Chul Bae, Sang Kyoo Paik, Kuk Pil Park, Su Kyung Ma, Jong Gil Jin, Dong Kuk Ahn, Sung Kyo Kim, Masayuki Moritani, Atsushi Yoshida

Department of Dentistry

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

This study analyzed quantitatively the ultrastructural features of tooth pulp afferent terminals and their presynaptic axonal endings (p-endings) in the trigeminal principal (Vp), dorsomedial oral (Vdm), and caudal nuclei (Vc). Mitochondrial volume, active zone area, apposed surface area, and vesicle number were highly correlated with afferent bouton volume. The afferent bouton volume varied widely in Vp, compared to that in Vdm and Vc. The values of all parameters of p-endings were within a narrow range, and were smaller than those of afferent boutons. The afferent bouton volume correlated with the number of postsynaptic dendrites and p-endings. These results suggest that pulpal afferent information is regulated in a unique manner in the each trigeminal sensory nucleus.

Original language	English
Pages (from-to)	2485-2489
Number of pages	5
Journal	NeuroReport
Volume	15
Issue number	16
DOIs	https://doi.org/10.1097/00001756-200411150-00011
State	Published - 15 Dec 2004

Keywords

Quantitative analysis
Tooth pulp afferents
Trigeminal
Ultrastructure

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10.1097/00001756-200411150-00011

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title = "Quantitative analysis of tooth pulp afferent terminals in the rat brain stem",

abstract = "This study analyzed quantitatively the ultrastructural features of tooth pulp afferent terminals and their presynaptic axonal endings (p-endings) in the trigeminal principal (Vp), dorsomedial oral (Vdm), and caudal nuclei (Vc). Mitochondrial volume, active zone area, apposed surface area, and vesicle number were highly correlated with afferent bouton volume. The afferent bouton volume varied widely in Vp, compared to that in Vdm and Vc. The values of all parameters of p-endings were within a narrow range, and were smaller than those of afferent boutons. The afferent bouton volume correlated with the number of postsynaptic dendrites and p-endings. These results suggest that pulpal afferent information is regulated in a unique manner in the each trigeminal sensory nucleus.",

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AU - Bae, Yong Chul

AU - Paik, Sang Kyoo

AU - Park, Kuk Pil

AU - Ma, Su Kyung

AU - Jin, Jong Gil

AU - Ahn, Dong Kuk

AU - Kim, Sung Kyo

AU - Moritani, Masayuki

AU - Yoshida, Atsushi

PY - 2004/12/15

Y1 - 2004/12/15

N2 - This study analyzed quantitatively the ultrastructural features of tooth pulp afferent terminals and their presynaptic axonal endings (p-endings) in the trigeminal principal (Vp), dorsomedial oral (Vdm), and caudal nuclei (Vc). Mitochondrial volume, active zone area, apposed surface area, and vesicle number were highly correlated with afferent bouton volume. The afferent bouton volume varied widely in Vp, compared to that in Vdm and Vc. The values of all parameters of p-endings were within a narrow range, and were smaller than those of afferent boutons. The afferent bouton volume correlated with the number of postsynaptic dendrites and p-endings. These results suggest that pulpal afferent information is regulated in a unique manner in the each trigeminal sensory nucleus.

AB - This study analyzed quantitatively the ultrastructural features of tooth pulp afferent terminals and their presynaptic axonal endings (p-endings) in the trigeminal principal (Vp), dorsomedial oral (Vdm), and caudal nuclei (Vc). Mitochondrial volume, active zone area, apposed surface area, and vesicle number were highly correlated with afferent bouton volume. The afferent bouton volume varied widely in Vp, compared to that in Vdm and Vc. The values of all parameters of p-endings were within a narrow range, and were smaller than those of afferent boutons. The afferent bouton volume correlated with the number of postsynaptic dendrites and p-endings. These results suggest that pulpal afferent information is regulated in a unique manner in the each trigeminal sensory nucleus.

KW - Quantitative analysis

KW - Tooth pulp afferents

KW - Trigeminal

KW - Ultrastructure

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Quantitative analysis of tooth pulp afferent terminals in the rat brain stem

Abstract

Keywords

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