Morphological Changes of the Dopaminergic Network in the Rat Retina after Axotomy / 대한해부학회지
Korean Journal of Anatomy
;
: 199-206, 2005.
Article
Dans Anglais
| WPRIM
| ID: wpr-649024
ABSTRACT
In the retina, dopaminergic cells express the receptor for brain-derived neurotrophic factor (BDNF), which is known to be retrogradely transported from higher center to the retina. This study was conducted to identify the effect of optic nerve transaction on the dopaminergic cells in the rat retina by immunocytochemistry using antityrosine hydroxylase (TH) antiserum. In the control retina, we found two types of TH-immunoreactive amacrine cells, type I and type II, in the inner nuclear layer (INL) adjacent to the inner plexiform layer (IPL). The type I amacrine cell varicosities formed ring-like structures in contact with AII amacrine cell somata in stratum 1 of the IPL. In the axotomized retinas, TH-labeled processes formed loose networks of fibers, unlike the dense networks in the control retina, and the ring-like structures were disrupted. Our data suggest that retrogradely transported neurotrophic factor affects the expression of TH immunoreactivity in the axotomized rat retina and may therefore influence the retinal dopaminergic system.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Nerf optique
/
Rétine
/
Rétinal
/
Tyrosine 3-monooxygenase
/
Immunohistochimie
/
Facteur neurotrophique dérivé du cerveau
/
Axotomie
/
Cellules amacrines
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Korean Journal of Anatomy
Année:
2005
Type:
Article
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