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Titolo:
INVOLVEMENT OF CAPSAICIN-SENSITIVE SENSORY NERVES IN GASTRIC ADAPTIVERELAXATION IN ISOLATED GUINEA-PIG STOMACHS
Autore:
UNO H; ARAKAWA T; FUKUDA T; HIGUCHI K; KOBAYASHI K;
Indirizzi:
OSAKA CITY UNIV,SCH MED,DEPT INTERNAL MED 3,ABENO KU,1-5-7 ASAHIMACHIOSAKA 545 JAPAN
Titolo Testata:
Digestion
fascicolo: 3, volume: 58, anno: 1997,
pagine: 232 - 239
SICI:
0012-2823(1997)58:3<232:IOCSNI>2.0.ZU;2-8
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHRONIC IDIOPATHIC DYSPEPSIA; GENE-RELATED PEPTIDE; NONULCER DYSPEPSIA; NITRIC-OXIDE; FUNCTIONAL DYSPEPSIA; SYMPTOMS; DISTENSION; CISAPRIDE; VAGOTOMY;
Keywords:
ADAPTIVE RELAXATION; RECEPTIVE RELAXATION; CAPSAICIN-SENSITIVE SENSORY NERVE; NITRIC OXIDE; VASOACTIVE INTESTINAL PEPTIDE; CALCITONIN GENE-RELATED PEPTIDE; GASTRIC RESERVOIR FUNCTION; FUNCTIONAL DYSPEPSIA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
24
Recensione:
Indirizzi per estratti:
Citazione:
H. Uno et al., "INVOLVEMENT OF CAPSAICIN-SENSITIVE SENSORY NERVES IN GASTRIC ADAPTIVERELAXATION IN ISOLATED GUINEA-PIG STOMACHS", Digestion, 58(3), 1997, pp. 232-239

Abstract

We investigated the role of capsaicin-sensitive sensory nerves (CPSNs, nitric oxide (NO), calcitonin gene-related peptide (CGRP) and vasoactive intestinal peptide (VIP) in gastric adaptive and receptive relaxation in isolated guineapig stomachs. Changes in intragastric volume and pressure were recorded simultaneously in isolated stomachs in baths containing atropine and guanethidine. Adaptive relaxation was induced by luminal distention, and receptive relaxation was induced by electrical vagal stimulation. We found that desensitization to capsaicin inhibited adaptive relaxation, but not vagally induced relaxation. Extraluminal capsaicin induced gastric relaxation. Adaptive relaxation and capsaicin-induced relaxation were reduced by both tetrodotoxin and N-G-nitro-L-arginine (LNNA). but not by hexamethonium, The effect of LNNA was partially reversed by co-incubation with L-arginine. Neither CGRP((8-37)), nor VIP(10-28) inhibited all responses of adaptive relaxation,vagally induced and capsaicin-induced relaxation. These findings suggest that activation of CPSNs may be involved in adaptive relaxation, and that NO, but not CGRP or VIP, may be involved in the mechanisms of adaptive relaxation and receptive relaxation.

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Documento generato il 10/07/20 alle ore 01:20:57