Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1993-2-23
pubmed:abstractText
Components of the gamma-glutamyl cycle, including thiols, glutathione (GSH) and gamma-glutamyl transpeptidase (gamma-GT), were localized in the nasal mucosae of rats using histochemical and immunohistochemical methods. In olfactory mucosa, thiols were widely distributed, with intense staining in the mucociliary complex (MC), basal cells, acinar cells of Bowman's glands (BG), and olfactory nerve bundles, and with moderate staining in olfactory receptor neurons (ORNs). GSH was localized in MC, BG acinar cells, nerve bundles and, to a lesser extent, in ORNs. gamma-GT immunoreactivity was restricted to the MC and to basolateral and apical membranes of BG acinar and duct cells. The basolateral membrane of BG acinar cells, located in close association with blood vessels and connective tissue, showed granule-like immunoreactivity. In respiratory mucosa, all three compounds were localized in the MC and acinar cells of respiratory glands (RG). In the MC, gamma-GT immunoreactivity was associated primarily with brush borders of ciliated cells. Granular immunoreactivity was also apparent in the supranuclear region of RG acinar cells. These results demonstrate that components of the gamma-glutamyl cycle are localized in olfactory and respiratory glands, and that they are secreted into the mucus, where they may mediate perireceptor events such as detoxification and/or solubilization of air-borne xenobiotics, toxicants and odorants.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0302-766X
pubmed:author
pubmed:issnType
Print
pubmed:volume
270
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
475-84
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Glutathione and gamma-glutamyl transpeptidase are differentially distributed in the olfactory mucosa of rats.
pubmed:affiliation
Department of Physiology and Biophysics, University of Kentucky College of Medicine, Lexington 40536.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, U.S. Gov't, Non-P.H.S.