Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2004-2-25
pubmed:abstractText
This study examines the expression of pituitary adenylate cyclase activating polypeptide (PACAP) mRNA in the rat spinal cord during normal conditions and in response to sciatic nerve transection. Previously, PACAP immunoreactivity has been found in fibers in the spinal cord dorsal horn and around the central canal and in neurons in the intermediolateral column (IML). Furthermore, in the dorsal root ganglia, PACAP immunoreactivity and PACAP mRNA expression have been observed preferentially in nerve cell bodies of smaller diameter terminating in the superficial laminae of the dorsal horn. However, neuronal expression of PACAP mRNA in adult rat spinal cord appeared limited to neurons of the IML. By using a refined in situ hybridization protocol, we now detect PACAP mRNA expression in neurons primarily in laminae I and II, but also in deeper laminae of the spinal cord dorsal horn and around the central canal. In addition, PACAP mRNA expression is observed in a few neurons in the ventral horn. PACAP expression in the ventral horn is increased in a population of large neurons, most likely motor neurons, both after distal and proximal sciatic nerve transection. The proposed role of PACAP in nociception is strengthened by our findings of PACAP mRNA-expressing neurons in the superficial laminae of the dorsal horn. Furthermore, increased expression of PACAP in ventral horn neurons, in response to nerve transection, suggests a role for PACAP in repair/regeneration of motor neurons.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0021-9967
pubmed:author
pubmed:copyrightInfo
Copyright 2004 Wiley-Liss, Inc.
pubmed:issnType
Print
pubmed:day
22
pubmed:volume
471
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
85-96
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed-meshheading:14983478-Animals, pubmed-meshheading:14983478-Anterior Horn Cells, pubmed-meshheading:14983478-Denervation, pubmed-meshheading:14983478-Female, pubmed-meshheading:14983478-Ganglia, Spinal, pubmed-meshheading:14983478-Gene Expression, pubmed-meshheading:14983478-In Situ Hybridization, pubmed-meshheading:14983478-Male, pubmed-meshheading:14983478-Neuropeptides, pubmed-meshheading:14983478-Peripheral Nerve Injuries, pubmed-meshheading:14983478-Pituitary Adenylate Cyclase-Activating Polypeptide, pubmed-meshheading:14983478-Posterior Horn Cells, pubmed-meshheading:14983478-RNA, Messenger, pubmed-meshheading:14983478-Rats, pubmed-meshheading:14983478-Rats, Sprague-Dawley, pubmed-meshheading:14983478-Rats, Wistar, pubmed-meshheading:14983478-Sciatic Nerve, pubmed-meshheading:14983478-Spinal Cord
pubmed:year
2004
pubmed:articleTitle
PACAP mRNA is expressed in rat spinal cord neurons.
pubmed:affiliation
Department of Physiological Sciences, Section for Neuroendocrine Cell Biology, Lund University, SE-221 84 Lund, Sweden. lina.pettersson@mphy.lu.se
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't, Multicenter Study