PEPTIDE-CONTAINING NERVE-FIBERS IN THE FUNGIFORM PAPILLAE OF PIGS AND RATS

被引:22
|
作者
MONTAVON, P
LINDSTRAND, K
LUTS, A
SUNDLER, F
机构
[1] UNIV LUND,DEPT MED CELL RES,BISKOPSGATAN 5,S-22362 LUND,SWEDEN
[2] NESTEC LTD,NESTLE RES CTR,LAUSANNE,SWITZERLAND
关键词
NEUROPEPTIDE; FUNGIFORM PAPILLA; TASTE BUD;
D O I
10.1016/0167-0115(91)90042-F
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
The occurrence and distribution of an array of neuropeptides and dopamine-beta-hydroxylase in the fungiform papillae of pigs and rats were studied by immunocytochemistry. Structural differences between the fungiform papillae of the two species were correlated to differences in the occurrence and distribution of neuropeptides. Calcitonin gene-related peptide-, substance P- and neurokinin A-containing fibers were numerous in the fungiform papillae of both species, although their distribution within the papilla differed. In the pig, the majority of these fibers ended within the taste buds, while in the rat numerous fibers also penetrated the adjacent epithelium. Galanin- and bombesin-immunoreactive nerve fibers could not be detected in the rat fungiform papillae, while in the pig many, but not all, of the fungiform papillae contained bombesin- and galanin-positive nerve fibers. Vasoactive intestinal peptide- and peptide histidine isoleucine-immunoreactive fibers occurred in the fungiform papillae of both species. A few neuropeptide Y-containing fibers and dopamine-beta-hydroxylase-positive (presumably adrenergic) fibers could be observed in the porcine papillae only.
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页码:141 / 150
页数:10
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