Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation

Melatonin secretion from mammalian pineal glands is regulated by light stimulation by means of a complex neuroanatomical pathway that includes the retina, hypothalamic suprachiasmatic nucleus, intermediolateral nucleus of the thoracic spinal cord, and finally, the superior cervical ganglia. The purp...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Roa Henriquez,Ignacio, Suazo Galdames,Iván, Cantín López,Mario, Zavando Matamata,Daniela
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2008
Materias:	Pineal gland Rat Photic stimulation Pinealocytes
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300025
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-95022008000300025
record_format	dspace
spelling	oai:scielo:S0717-950220080003000252009-03-13Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic StimulationRoa Henriquez,IgnacioSuazo Galdames,IvánCantín López,MarioZavando Matamata,Daniela Pineal gland Rat Photic stimulation Pinealocytes Melatonin secretion from mammalian pineal glands is regulated by light stimulation by means of a complex neuroanatomical pathway that includes the retina, hypothalamic suprachiasmatic nucleus, intermediolateral nucleus of the thoracic spinal cord, and finally, the superior cervical ganglia. The purpose of this study was to analyze the changes in the pinealocytes and the blood vessel density of the pineal gland after eliminating photic stimulation in rats. Thirteen adult Sprague-Dawley rats were divided into 2 groups, Group I acted as control, and Group II was subjected to a retinal lesión, by means of alcohol injected bilaterally to both ocular bulbs. After 3 weeks, the glands of both groups were processed with hematoxilin-eosin (HE) and observed with an optic microscope. Group II results presented higher valúes in the number of pinealocytes and in the blood vessels observed. The differences with Group I was significant at p <0.01. These results give an indirect evidence of the effect that photic stimulation suppression has in the pineal gland in rats.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.26 n.3 20082008-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300025en10.4067/S0717-95022008000300025
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Pineal gland Rat Photic stimulation Pinealocytes
spellingShingle	Pineal gland Rat Photic stimulation Pinealocytes Roa Henriquez,Ignacio Suazo Galdames,Iván Cantín López,Mario Zavando Matamata,Daniela Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
description	Melatonin secretion from mammalian pineal glands is regulated by light stimulation by means of a complex neuroanatomical pathway that includes the retina, hypothalamic suprachiasmatic nucleus, intermediolateral nucleus of the thoracic spinal cord, and finally, the superior cervical ganglia. The purpose of this study was to analyze the changes in the pinealocytes and the blood vessel density of the pineal gland after eliminating photic stimulation in rats. Thirteen adult Sprague-Dawley rats were divided into 2 groups, Group I acted as control, and Group II was subjected to a retinal lesión, by means of alcohol injected bilaterally to both ocular bulbs. After 3 weeks, the glands of both groups were processed with hematoxilin-eosin (HE) and observed with an optic microscope. Group II results presented higher valúes in the number of pinealocytes and in the blood vessels observed. The differences with Group I was significant at p <0.01. These results give an indirect evidence of the effect that photic stimulation suppression has in the pineal gland in rats.
author	Roa Henriquez,Ignacio Suazo Galdames,Iván Cantín López,Mario Zavando Matamata,Daniela
author_facet	Roa Henriquez,Ignacio Suazo Galdames,Iván Cantín López,Mario Zavando Matamata,Daniela
author_sort	Roa Henriquez,Ignacio
title	Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
title_short	Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
title_full	Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
title_fullStr	Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
title_full_unstemmed	Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation
title_sort	morphologic changes in rat's pineal gland after eliminating retinal photic stimulation
publisher	Sociedad Chilena de Anatomía
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000300025
work_keys_str_mv	AT roahenriquezignacio morphologicchangesinratspinealglandaftereliminatingretinalphoticstimulation AT suazogaldamesivan morphologicchangesinratspinealglandaftereliminatingretinalphoticstimulation AT cantinlopezmario morphologicchangesinratspinealglandaftereliminatingretinalphoticstimulation AT zavandomatamatadaniela morphologicchangesinratspinealglandaftereliminatingretinalphoticstimulation
_version_	1718444634302054400

Morphologic Changes in Rat's Pineal Gland After Eliminating Retinal Photic Stimulation

Ejemplares similares