Document Detail


Appearance of prolactin-releasing peptide-producing cells in the area postrema of postnatal rats.
MedLine Citation:
PMID:  17949829     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Prolactin-releasing peptide (PrRP) was recently isolated from bovine hypothalamus. PrRP is the natural ligand for an orphan G-protein-coupled receptor, hGR3, and directly stimulates prolactin secretion from the anterior pituitary in vitro and in vivo. It has also been reported that PrRP plays an important role as a neurotransmitter and/or neuromodulator in the brain. Although much knowledge has been gained concerning PrRP in the adult rat brain, little attention has been paid to the fetal and postnatal stages. We therefore examined the development of PrRP neurons in the rat brain. In immunocytochemical and in situ hybridization experiments, we observed the transient appearance of PrRP-producing cells in the area postrema (AP), in which PrRP-producing cells do not exist in the normal adult rat. PrRP-producing cells in the AP were detected at P14, and many PrRP-producing cells were observed at P17, though none were detected at P19. This is the first report of the appearance of PrRP-producing cells in the postnatal AP. Our findings suggest that PrRP may play a previously unknown role in the AP of postnatal rats.
Authors:
Ken Fujiwara; Kimie Usui; Takashi Yashiro; Kinji Inoue
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-09-18
Journal Detail:
Title:  Regulatory peptides     Volume:  145     ISSN:  0167-0115     ISO Abbreviation:  Regul. Pept.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2007-12-24     Completed Date:  2008-05-06     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  8100479     Medline TA:  Regul Pept     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  33-6     Citation Subset:  IM    
Affiliation:
Department of Regulation Biology, Faculty of Science, Saitama University, 255 Shimo-ohkubo, Saitama, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Newborn
Area Postrema / metabolism*
Hypothalamic Hormones / biosynthesis*,  genetics
Neuropeptides / biosynthesis*,  genetics
Prolactin-Releasing Hormone
Rats
Rats, Wistar
Chemical
Reg. No./Substance:
0/Hypothalamic Hormones; 0/Neuropeptides; 0/Prlh protein, rat; 0/Prolactin-Releasing Hormone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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