Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-1-9
pubmed:abstractText
In situ hybridisation was used to determine the distribution and levels of mRNA for galanin precursor preprogalanin (ppGAL) and galanin receptor-1 (GAL-R1) in the rat hindbrain before and after birth. Quantification of mRNA levels was performed from E21. Also, immunohistochemistry was used to study GAL-like immunoreactivity (GAL-LI) prenatally. On E16, no expression of ppGAL mRNA could be detected in any areas examined, whereas on E19 low transcript levels were observed. GAL-LI, however, was seen at relatively high levels in nerve fibres already on E16, mainly in the areas receiving primary afferents. Also, GAL-R1 mRNA was expressed at high levels in discrete areas of the hindbrain on E16. On E21 ppGAL mRNA was found in the locus coeruleus (LC), the nucleus of the solitary tract, the dorsal motor nucleus of the vagus (nX), the lateral reticular nucleus (LRn) and superficially along the ventral medullary surface. Expression increased postnatally in all these areas except in nX and LRn. GAL-R1 mRNA, on the other hand, was found to be expressed at high levels on E21 in the LC, where levels then decreased on P1. Expression of GAL-R1 mRNA was also found in other areas of the brainstem, but here no changes were detected around birth. These findings demonstrate that ppGAL and GAL-R1 mRNAs, as well as GAL-LI, are present in the brainstem in the rat fetus and that the changes in expression after birth could be of importance for the newborn in the transition from pre- to postnatal life.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0165-3806
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
123
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
53-65
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Perinatal distribution of galanin and galanin receptor-1 mRNA in the rat hindbrain.
pubmed:affiliation
Department of Neuroscience, Karolinska Institutet, 171 76, Stockholm, Sweden. ronny.wickstrom@kbh.ki.se
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't