Ultrastructural and neuropharmacological findings in the nerve/muscle system of a digenean (Cercaria caribbea LXXI Cable)
Comp Biochem Physiol
; 90C(2): 295-303, 1988.
Artigo
em Inglês
| MedCarib
| ID: med-10181
Biblioteca responsável:
JM3.1
ABSTRACT
The surface morphology and organization of the neuromuscular system in Cercaria caribbea LXXI are investigated using scanning and transmission electron microscopy, respectively. Direct and indirect (sarconeural) nerve-muscle junctions are identified in the cercarial tail. Synaptic vesicles at the direct neuromuscular junction suggest cholinergic and aminoacidergic transmission. Those at the sarconeural junctions suggest catecholaminergic and/or serotonergic transmission. Acetylcholinesterase and non-specific cholinesterases were found in high concentrations in the proximal and distal tail. Flourescence histochemistry showed primary catecholamines and 5-HT in the body and tail. 5-HT in the tail may represent a slowly depleted store, perhaps associated with energy availability and utilization. (AU)
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Coleções:
Bases de dados internacionais
Base de dados:
MedCarib
Assunto principal:
Parasitos
/
Junção Neuromuscular
Tipo de estudo:
Estudo diagnóstico
/
Estudo prognóstico
Idioma:
Inglês
Revista:
Comp Biochem Physiol
Ano de publicação:
1988
Tipo de documento:
Artigo