TY - JOUR
T1 - Neurocalcin-immunoreactive neurons in the petrosal ganglion innervate the taste bud
AU - Ichikawa, H.
AU - Sugimoto, T.
N1 - Funding Information:
We greatly appreciate Dr. Hiroyoshi Hidaka of the Department of Pharmacology, Nagoya University School of Medicine for his kind gift of the anti-NC-serum. This work was supported by a grant from the Japanese Ministry of Education, Culture, Sports, Science and Technology to H.I. (No. 14571733).
PY - 2004/8/13
Y1 - 2004/8/13
N2 - The distribution and origin of neurocalcin-immunoreactive (NC-ir) nerve fibers in the taste bud and carotid body were examined by an immunofluorescence method. In the circumvallate papilla of the tongue, NC-ir nerve fibers made subepithelial nerve plexuses and occasionally penetrated the taste bud. However, the carotid body was devoid of ir nerve fibers. In the petrosal ganglion, 32% of neurons were immunoreactive for NC. Such neurons were mostly medium-sized to large, and scattered throughout the ganglion. In the superior cervical and intralingual ganglia, numerous ir varicose fibers surrounded postsynaptic neurons. However, NC-ir could not be detected in cell bodies of these neurons. The retrograde tracing method indicated that NC-ir petrosal neurons innervated taste buds in the circumvallate papilla. NC-ir neurons may have a gustatory function in the petrosal ganglion.
AB - The distribution and origin of neurocalcin-immunoreactive (NC-ir) nerve fibers in the taste bud and carotid body were examined by an immunofluorescence method. In the circumvallate papilla of the tongue, NC-ir nerve fibers made subepithelial nerve plexuses and occasionally penetrated the taste bud. However, the carotid body was devoid of ir nerve fibers. In the petrosal ganglion, 32% of neurons were immunoreactive for NC. Such neurons were mostly medium-sized to large, and scattered throughout the ganglion. In the superior cervical and intralingual ganglia, numerous ir varicose fibers surrounded postsynaptic neurons. However, NC-ir could not be detected in cell bodies of these neurons. The retrograde tracing method indicated that NC-ir petrosal neurons innervated taste buds in the circumvallate papilla. NC-ir neurons may have a gustatory function in the petrosal ganglion.
KW - Immunohistochemistry
KW - Neurocalcin
KW - Petrosal ganglion
KW - Sensory systems
KW - Somatic and visceral afferents
KW - Superior cervical ganglion
KW - Taste bud
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U2 - 10.1016/j.brainres.2004.05.071
DO - 10.1016/j.brainres.2004.05.071
M3 - Article
C2 - 15261122
AN - SCOPUS:3142748202
VL - 1017
SP - 244
EP - 247
JO - Molecular Brain Research
JF - Molecular Brain Research
SN - 0006-8993
IS - 1-2
ER -