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Titolo:
DECREASED VASOACTIVE INTESTINAL POLYPEPTIDE-IMMUNOREACTIVITY OF PARASYMPATHETIC NEURONS AND TARGET INNERVATION FOLLOWING LONG-TERM SYMPATHECTOMY
Autore:
FAN Q; SMITH PG;
Indirizzi:
UNIV KANSAS,MED CTR,DEPT PHYSIOL,3901 RAINBOW BLVD KANSAS CITY KS 66160 UNIV KANSAS,MED CTR,DEPT PHYSIOL,3901 RAINBOW BLVD KANSAS CITY KS 66160
Titolo Testata:
Regulatory peptides
fascicolo: 3, volume: 48, anno: 1993,
pagine: 337 - 343
SICI:
0167-0115(1993)48:3<337:DVIPOP>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
PEPTIDE-CONTAINING NERVES; GENE-RELATED PEPTIDE; NEUROPEPTIDE-Y; GUINEA-PIG; CEREBRAL-ARTERIES; (VIP)-LIKE IMMUNOREACTIVITY; TYROSINE-HYDROXYLASE; CHOLINERGIC NEURONS; CILIARY GANGLION; CO-EXISTENCE;
Keywords:
VIP; PARASYMPATHETIC NERVOUS SYSTEM; SYMPATHETIC NERVOUS SYSTEM; MEIBOMIAN GLAND; PTERYGOPALATINE GANGLION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
28
Recensione:
Indirizzi per estratti:
Citazione:
Q. Fan e P.G. Smith, "DECREASED VASOACTIVE INTESTINAL POLYPEPTIDE-IMMUNOREACTIVITY OF PARASYMPATHETIC NEURONS AND TARGET INNERVATION FOLLOWING LONG-TERM SYMPATHECTOMY", Regulatory peptides, 48(3), 1993, pp. 337-343

Abstract

Following long-term sympathectomy, parasympathetic neurons show increased expression of some catecholaminergic traits. The objective of this study was to determine if, in addition, expression of vasoactive intestinal polypeptide immunoreactivity (VIP-ir) is suppressed in parasympathetic neurons and a glandular target of the rat. Studies were conducted on the rat pterygopalatine ganglion and meibomian gland; the meibomian gland contains dense innervation that is strongly VIP-ir, and 99% of the VIP-ir neurons projecting to this target reside within the pterygopalatine ganglion. Two months following unilateral superior cervical ganglionectomy on postnatal day 30, DBH-ir fibers normally presentwithin the eyelid were absent and there was a marked reduction in number and staining intensity of VIP-ir fibers within the meibomian gland. The percentage of pterygopalatine ganglion neurons displaying DBH-irwas increased from 43 +/- 4 to 65 +/- 2%. However, the percentage of parasympathetic neurons expressing VIP-ir was decreased from 96 +/- 4 % to 76 +/- 1%. We conclude that sympathectomy not only enhances expression of some catecholaminergic traits but also suppresses VIP-ir within pterygopalatine ganglion parasympathetic neurons and meibomian gland target.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 09:56:35