| Neural mechanisms controlling jaw-jerk reflex in the cat. | |
| | |
MedLine Citation:
|
PMID: 16148746 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Signal substances of axon terminals presynaptic to jaw spindle Ia afferents and their ultrastructural features were examined using a combination of intra-axonal horseradish peroxidase injection and postembedding immunogold-labeling techniques in cats. A total of 35 axon terminals presynaptic to 22 horseradish peroxidase-labeled Ia boutons were examined. Of the 35 presynaptic axon terminals, 14 (40%) were immunoreactive for both gamma-aminobutyric acid and glycine, 9 (26%) for gamma-aminobutyric acid alone and 9 (26%) for glycine alone. The bouton volume, mitochondrial volume, active zone area, and apposed surface area were larger for Ia boutons than for presynaptic axon terminals, while each of the values is similar among the three types of presynaptic axon terminals. These results suggest that gamma-aminobutyric acid and glycine play an important role for modulating the jaw-jerk reflex presynaptically and that the smaller size of presynaptic axon terminals is important to prevent action potential generation from Ia afferents. |
| | |
Authors:
|
Sang Kyoo Paik; Soo Jin Oh; Young Jin Son; Su Kyung Ma; Chang Hyeon Ahn; Sung Kyo Kim; Zheng Chang; Masayuki Moritani; Atsushi Yoshida; Yong Chul Bae |
Related Documents
:
|
13740946 - Isolation and identification of a neuroactive factor from lathyrus latifolius. 2877416 - The role of gaba and excitatory amino acids in the development of the leptazol-induced ... 876346 - Gamma-irradiation and storage effects on some chemical aspects of carrots. 11166946 - Evidence for microvesicular storage and release of glycine in rodent pinealocytes. 10499456 - 24-h recording of intragastric ph: technical aspects and clinical relevance. 17390216 - Iron-citrate complexes and free radicals generation: is citric acid an innocent additiv... |
Publication Detail:
|
Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Neuroreport Volume: 16 ISSN: 0959-4965 ISO Abbreviation: Neuroreport Publication Date: 2005 Sep |
Date Detail:
|
Created Date: 2005-09-08 Completed Date: 2005-12-15 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 9100935 Medline TA: Neuroreport Country: England |
Other Details:
|
Languages: eng Pagination: 1565-8 Citation Subset: IM |
Affiliation:
|
Department of Neurobiology, Graduate School of Dentistry, Kyungpook National University, Daegu, Korea. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Analysis of Variance Animals Axons / metabolism, ultrastructure Cats Cell Count / methods Glycine / metabolism Horseradish Peroxidase / metabolism Immunohistochemistry / methods Jaw / physiology* Microscopy, Immunoelectron / methods Motor Neurons / metabolism, physiology*, ultrastructure Muscle Spindles / metabolism Nerve Fibers / metabolism Presynaptic Terminals / metabolism, ultrastructure Reflex / physiology* Trigeminal Nucleus, Spinal / cytology* gamma-Aminobutyric Acid / metabolism |
| Chemical | |
Reg. No./Substance:
|
56-12-2/gamma-Aminobutyric Acid; 56-40-6/Glycine; EC 1.11.1.-/Horseradish Peroxidase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Ultrastructure of jaw muscle spindle afferents within the rat trigeminal mesencephalic nucleus.
Next Document: Principalis, oralis and interpolaris responses to whisker movements provoked by air jets in rats.