Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-5-22
pubmed:abstractText
Orexins (hypocretins) are neuropeptides synthesized in the central nervous system exclusively by neurons of the lateral hypothalamus. Orexin-containing neurons have widespread projections and have been implicated in complex physiological functions including feeding behavior, sleep states, neuroendocrine function, and autonomic control. Two orexin receptors (OX(1)R and OX(2)R) have been identified, with distinct expression patterns throughout the brain, but a systematic examination of orexin receptor expression in the brain has not appeared. We used in situ hybridization histochemistry to examine the patterns of expression of mRNA for both orexin receptors throughout the brain. OX(1)R mRNA was observed in many brain regions including the prefrontal and infralimbic cortex, hippocampus, paraventricular thalamic nucleus, ventromedial hypothalamic nucleus, dorsal raphe nucleus, and locus coeruleus. OX(2)R mRNA was prominent in a complementary distribution including the cerebral cortex, septal nuclei, hippocampus, medial thalamic groups, raphe nuclei, and many hypothalamic nuclei including the tuberomammillary nucleus, dorsomedial nucleus, paraventricular nucleus, and ventral premammillary nucleus. The differential distribution of orexin receptors is consistent with the proposed multifaceted roles of orexin in regulating homeostasis and may explain the unique role of the OX(2)R receptor in regulating sleep state stability.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0021-9967
pubmed:author
pubmed:copyrightInfo
Copyright 2001 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
18
pubmed:volume
435
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6-25
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:11370008-Animals, pubmed-meshheading:11370008-Autonomic Nervous System, pubmed-meshheading:11370008-Cerebral Cortex, pubmed-meshheading:11370008-Feeding Behavior, pubmed-meshheading:11370008-Gene Expression, pubmed-meshheading:11370008-Hippocampus, pubmed-meshheading:11370008-Hypothalamic Area, Lateral, pubmed-meshheading:11370008-In Situ Hybridization, pubmed-meshheading:11370008-Locus Coeruleus, pubmed-meshheading:11370008-Male, pubmed-meshheading:11370008-Midline Thalamic Nuclei, pubmed-meshheading:11370008-Narcolepsy, pubmed-meshheading:11370008-RNA, Messenger, pubmed-meshheading:11370008-Raphe Nuclei, pubmed-meshheading:11370008-Rats, pubmed-meshheading:11370008-Rats, Sprague-Dawley, pubmed-meshheading:11370008-Receptors, G-Protein-Coupled, pubmed-meshheading:11370008-Receptors, Neuropeptide, pubmed-meshheading:11370008-Sleep, pubmed-meshheading:11370008-Specific Pathogen-Free Organisms, pubmed-meshheading:11370008-Ventromedial Hypothalamic Nucleus
pubmed:year
2001
pubmed:articleTitle
Differential expression of orexin receptors 1 and 2 in the rat brain.
pubmed:affiliation
Department of Neurobiology, Harvard Medical School, Boston, Massachusetts 02215, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.