Linked Life Data

9783148

Source:http://linkedlifedata.com/resource/pubmed/id/9783148

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-12-22
pubmed:abstractText
The aim of the study was to evaluate both morphologically and functionally the distal large intestine from the aganglionic lethal spotted (ls/ls) mutant mouse and their healthy litter mates. Immunohistochemically, the aganglionic murine distal large intestine showed an absence of nerve cell bodies, and a reduction or absence of nerve fibers displaying immunoreactivity (IR) for protein gene product (PGP), nitric oxide synthase (NOS), vasoactive intestinal peptide (VIP), substance P (SP), galanin and calcitonin gene-related peptide (CGRP), while in the ganglionic large intestine these neuronal populations were abundantly present throughout the gut wall. Pathological nerve trunks within the afflicted intestinal segment were found to harbour PGP- and neuropeptide Y (NPY)-IR nerve fibers. Smooth muscle specimens from the distal part of the murine distal large intestine were mounted as ring preparations in vitro and subjected to electrical field stimulation (EFS). EFS (4-20 Hz) caused a contraction in both ganglionic and aganglionic intestine. After pretreatment with atropine EFS (20 Hz) evoked a biphasic motor response, a relaxation followed by a contraction in control specimens, while no motor response was seen in aganglionic intestine. Addition of the NOS-inhibitor N-nitro-L-arginine methyl ester (L-NAME) caused per se a weak and transient contraction and reduced the amplitude of the EFS-induced relaxation in control intestine.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0939-7248
pubmed:author
pubmed:issnType
Print
pubmed:volume
8
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
234-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Functional and morphological examination of ganglionic and aganglionic distal gut from the lethal spotted mouse.
pubmed:affiliation
Department of Pediatric Surgery, University of Lund, Sweden.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't