An ultrastructural study of dynorphin-immunoreactive nerve fibers and terminals in the celiac-superior mesenteric ganglion of the guinea pig.
Brain Res
; 502(2): 341-8, 1989 Nov 20.
Article
en En
| MEDLINE
| ID: mdl-2573411
ABSTRACT
Dynorphin-immunoreactive nerve fibers and terminals were identified in the celiac-superior mesenteric ganglion of the guinea pig at the ultrastructural level with the peroxidase-antiperoxidase technique. The immunostained material was localized in the large dense core vesicles of the terminals but was also present diffusely in the axoplasm. The terminals formed numerous axodendritic and a few axosomatic contacts, interpreted as synapses, with the principal ganglion cells. These findings suggest that dynorphin plays a role as a neurotransmitter or neuromodulator in the ganglion and, taken together with earlier findings, indicate an involvement of dynorphin neurons in the intestino-intestinal inhibitory reflex.
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Banco de datos:
MEDLINE
Asunto principal:
Dinorfinas
/
Ganglios Simpáticos
/
Mesenterio
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Brain Res
Año:
1989
Tipo del documento:
Article
País de afiliación:
Suecia