The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat

The microfibril-elastin fiber system, an important constituent of the extracellular matrix, was studied in the rat left atrioventricular valve to investigate the interrelationship of oxytalan, elaunin and elastic fibers in left atrioventricular valve morphology. The elastin fibers forms continuous b...

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Autores principales:	Rocha,Vinícius Novaes, Neto-Ferreira,Rodrigo, Mandarim-de-Lacerda,Carlos Alberto, Carvalho,Jorge José de
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2011
Materias:	Elastic fibers Elaunin fibers Oxytalan fibers Left atrioventricular valve
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300040
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spelling	oai:scielo:S0717-950220110003000402012-06-11The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the RatRocha,Vinícius NovaesNeto-Ferreira,RodrigoMandarim-de-Lacerda,Carlos AlbertoCarvalho,Jorge José de Elastic fibers Elaunin fibers Oxytalan fibers Left atrioventricular valve The microfibril-elastin fiber system, an important constituent of the extracellular matrix, was studied in the rat left atrioventricular valve to investigate the interrelationship of oxytalan, elaunin and elastic fibers in left atrioventricular valve morphology. The elastin fibers forms continuous bundles observed along the length of the valve in atrial and ventricular layers and oriented parallel to endothelium. The elaunin and oxytalan fibers are distributed in the thickest fiber bundles along the length of the valve. The thinner fibers which radiated towards both the atrial and spongiosa layers, either as isolated or arborescent fiber bundles were identified as oxytalan fibers. With transmission electron microscopy elastic fibers were seen mainly in the atrial layer. The spongiosa layer was composed of elaunin and oxytalan fibers and ventricular layer showed elaunin fibers arranged in continuous bundles parallel to the endothelium. Both fibrillin and elastin were seen and identified by immunocytochemistry with colloidal gold in the left atrioventricular valve spongiosa and atrial layers. These observations allow us to suggest that the microfibril-elastin fiber system plays a role in the mechanical protection and maintenance of the integrity of the rat left atrioventricular valve.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.29 n.3 20112011-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300040en10.4067/S0717-95022011000300040
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Elastic fibers Elaunin fibers Oxytalan fibers Left atrioventricular valve
spellingShingle	Elastic fibers Elaunin fibers Oxytalan fibers Left atrioventricular valve Rocha,Vinícius Novaes Neto-Ferreira,Rodrigo Mandarim-de-Lacerda,Carlos Alberto Carvalho,Jorge José de The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
description	The microfibril-elastin fiber system, an important constituent of the extracellular matrix, was studied in the rat left atrioventricular valve to investigate the interrelationship of oxytalan, elaunin and elastic fibers in left atrioventricular valve morphology. The elastin fibers forms continuous bundles observed along the length of the valve in atrial and ventricular layers and oriented parallel to endothelium. The elaunin and oxytalan fibers are distributed in the thickest fiber bundles along the length of the valve. The thinner fibers which radiated towards both the atrial and spongiosa layers, either as isolated or arborescent fiber bundles were identified as oxytalan fibers. With transmission electron microscopy elastic fibers were seen mainly in the atrial layer. The spongiosa layer was composed of elaunin and oxytalan fibers and ventricular layer showed elaunin fibers arranged in continuous bundles parallel to the endothelium. Both fibrillin and elastin were seen and identified by immunocytochemistry with colloidal gold in the left atrioventricular valve spongiosa and atrial layers. These observations allow us to suggest that the microfibril-elastin fiber system plays a role in the mechanical protection and maintenance of the integrity of the rat left atrioventricular valve.
author	Rocha,Vinícius Novaes Neto-Ferreira,Rodrigo Mandarim-de-Lacerda,Carlos Alberto Carvalho,Jorge José de
author_facet	Rocha,Vinícius Novaes Neto-Ferreira,Rodrigo Mandarim-de-Lacerda,Carlos Alberto Carvalho,Jorge José de
author_sort	Rocha,Vinícius Novaes
title	The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
title_short	The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
title_full	The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
title_fullStr	The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
title_full_unstemmed	The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat
title_sort	microfibril-elastin fiber system distribution in left atrioventricular valve of the rat
publisher	Sociedad Chilena de Anatomía
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300040
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The Microfibril-Elastin Fiber System Distribution in Left Atrioventricular Valve of the Rat

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