Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1996-12-18
pubmed:abstractText
Glutamic acid decarboxylase (GAD), among other potential autoantigens, is thought to play a crucial role in type I diabetes, particularly in a spontaneous model of the disease, the nonobese diabetic (NOD) mouse. In the pancreas, the presence of GAD and gamma-aminobutyric acid (GABA), the decarboxylation product of GAD and a putative neurotransmitter in the islets of Langerhans, is well documented in the beta-cells. This is particularly true in rats, in which another GABAergic structure exists near the islets, the neuronal bodies. In this study, first the GABA content was measured in isolated islets from NOD and C57BL/6 mice (controls), and a decrease was found in NOD females as their insulitis progressed. Second, for the first time in mice, confocal analysis of immunofluorescent-labeled pancreatic sections revealed near the islets neuronal structures in which GAD and neuropeptide Y were colocalized, as they are in the brain. These structures were always observed in the pancreata of both sexes of C57BL/6 mice at the various ages investigated. In NOD mice, however, these neuronal structures were only detected in young females ( < 10 weeks old) and in males until an intermediate age. Moreover, patches of T cells surrounding GAD-containing fibers were seen in the vicinity of the islets with incipient periinsulitis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
137
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
3497-506
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Localization of gamma-aminobutyric acid and glutamic acid decarboxylase in the pancreas of the nonobese diabetic mouse.
pubmed:affiliation
Centre National de la Recherche Scientifique Unité de Recherche Associée 1461, Université de Paris V, Hôpital Necker, France.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't