Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-4-12
pubmed:abstractText
Recent evidence suggests that carbon monoxide (CO) may be a neurotransmitter, similar to nitric oxide (NO) in the enteric nervous system. The distribution of haem oxygenase (HO), the biosynthetic enzyme for CO, has been determined in the enteric nervous system of animals, but little is known about the distribution of HO in human gastrointestinal tract. The present study investigated the expression of HO and its colocalization with NO synthase (NOS), the biosynthetic enzyme for NO, in human antrum and jejunum. HO isoforms were identified using immunohistochemistry and NOS was identified by immunohistochemistry or NADPH-d histochemistry. HO-2 immunoreactive (IR) cell bodies in enteric ganglia and nerve fibres in longitudinal and circular muscle were found in both antrum and jejunum. Co-localization of HO-2 and NOS was about 40% in HO-2 containing cell bodies of myenteric ganglia and only 10% or less in cell bodies of submucous ganglia. HO-1 immunoreactivity was not detected in antrum or jejunum. The results suggest that CO is produced in human enteric ganglion neurones and indicate a possible role of CO as a neurotransmitter and possible interaction between HO and NOS pathways in inhibitory neurotransmission in the human gastrointestinal tract.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1350-1925
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
121-31
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
Haem oxygenase in enteric nervous system of human stomach and jejunum and co-localization with nitric oxide synthase.
pubmed:affiliation
Department of Physiology and Biophysics, Mayo Clinic and Mayo Foundation, Rochester, Minnesota 55905, USA. miller.steven@mayo.edu
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.