Leucine-enkephalin-, neurokinin A- and cholecystokinin-like immunoreactivities in the guinea pig tongue.
The occurrence of these neuropeptides was examined by immunofluorescence. Leu-Enk-like immunoreactivity was seen in nerve fibres associated with the epithelium, blood vessels and lingual salivary glands as well as in ganglionic cells within the tongue. Neuropeptide A-like immunoreactivity was found in nerve fibres associated with the epithelium, taste buds, blood vessels and lingual salivary glands. Cholecystokinin-like immunoreactivity was found in some nerve fibres around blood vessels as well as in ganglionic cells. The coexistence of these neuropeptides and substance P was also demonstrated in some nerve fibres and ganglionic cells within the tongue. Like substance P, these neuropeptides could be involved in blood flow regulation, salivation and as trophic factors for taste buds.
Ichikawa
H
H
Department of Oral Anatomy (1st), Osaka University Faculty of Dentistry, Japan.
Matsuo
S
S
Wakisaka
S
S
Itotagawa
T
T
Kato
J
J
Akai
M
M
D000818:Animals; D001808:Blood Vessels / Q000294:innervation; D002766:Cholecystokinin / Q000032:analysis; D004743:Enkephalin, Leucine / Q000032:analysis; D004848:Epithelium / Q000294:innervation; D005455:Fluorescent Antibody Technique; D005724:Ganglia / Q000032:analysis; D006168:Guinea Pigs; D009412:Nerve Fibers / Q000032:analysis; D015288:Neurokinin A / Q000032:analysis; D009479:Neuropeptides / Q000032:analysis*; D012469:Salivary Glands / Q000294:innervation; D013650:Taste Buds / Q000032:analysis; D014059:Tongue / Q000032:analysis* / Q000294:innervation
D009479:Neuropeptides; D004743:Enkephalin, Leucine; D015288:Neurokinin A; D002766:Cholecystokinin