Document Detail


Quantification of neuroepithelial bodies and their innervation in fawn-hooded and Wistar rat lungs.
MedLine Citation:
PMID:  12816734     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The Fawn-Hooded rat (FHR), a model for primary pulmonary hypertension, shows an unexplained hypersensitivity to airway hypoxia. Because pulmonary neuroepithelial bodies (NEBs) appear to express a functional oxygen-sensing mechanism and an extensive sensory innervation, possible changes in this system should be taken into consideration. In the present study a comparative analysis of NEBs and their selective innervation was performed in FHRs and Wistar control rats. In both rat strains, the number of NEBs was estimated to be around 3,500, approximately 40% of which were innervated by vagal sensory calbindin D28k-immunoreactive (IR) nerve endings and approximately 50% by spinal sensory calcitonin gene-related peptide (CGRP)-IR nerve terminals. The number of intrinsic pulmonary nitrergic neurons and the percentage of pulmonary NEBs revealing a nitrergic innervation were highly significantly lower in FHRs. In both FHRs and Wistar rats, a remarkable morphologic interaction was observed between the intrinsic nitrergic and the CGRP-IR sensory population contacting NEBs. Our findings suggest a possible link between the hypersensitivity to airway hypoxia observed in FHRs and a reduced intrinsic pulmonary nitrergic innervation, possibly via the interaction with pulmonary NEBs and their spinal sensory CGRP-IR innervation.
Authors:
Jeroen Van Genechten; Inge Brouns; Geoff Burnstock; Jean-Pierre Timmermans; Dirk Adriaensen
Related Documents :
12658554 - Incidence and severity of neovascularization in oxygen- and metabolic acidosis-induced ...
7559224 - Pulmonary vascular adaptations to augmented polycythemia during chronic hypoxia.
8333494 - Active oxygen species in the liver of rats submitted to chronic hypobaric hypoxia.
20436224 - Alterations in the hypoxic ventilatory response with advancing age in awake rats.
19693004 - Phasic vs sustained fear in rats and humans: role of the extended amygdala in fear vs a...
15386754 - In vitro and in vivo metabolism of pyronaridine characterized by low-energy collision-i...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2003-06-19
Journal Detail:
Title:  American journal of respiratory cell and molecular biology     Volume:  30     ISSN:  1044-1549     ISO Abbreviation:  Am. J. Respir. Cell Mol. Biol.     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2003-12-17     Completed Date:  2004-02-24     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8917225     Medline TA:  Am J Respir Cell Mol Biol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  20-30     Citation Subset:  IM    
Affiliation:
Department of Biomedical Sciences, University of Antwerp-RUCA, Groenenborgerlaan 171, B-2020 Antwerp, Belgium.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Animals
Epithelial Cells / cytology
Female
Immunohistochemistry
Lung / innervation*
Male
Nitrergic Neurons / cytology*
Rats
Rats, Wistar
Species Specificity

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


Previous Document:  The heparan sulfate proteoglycan GPC3 is a potential lung tumor suppressor.
Next Document:  Nitric oxide synthases and protein oxidation in the quadriceps femoris of patients with chronic obst...