Regional differences in the number and type of myenteric neurons in the descending colon of rats
Arq. neuropsiquiatr
;
61(2A): 220-225, Jun. 2003. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-339490
ABSTRACT
The purpose of this study was to analyze the neuronal density of the myenteric plexus of the intermediate and antimesocolic regions of the descending colon of rats. Whole-mounts were stained with three different techniques of neuronal evidenciation. Through counts of the number of neurons in an area of 6.64 mmý under light microscopy, we found 1,271 ± 227.54 neurons with Giemsa in the intermediate region and 1,234 ± 225.92 neurons in the antimesocolic region; with the NADH-diaphorase technique we found 530 ± 92.97 neurons in the intermediate region and 539 ± 146.72 neurons in the antimesocolic region; and through the NADPH-diaphorase histochemistry, we found 417 ± 34.42 neurons in the intermediate region and 547 ± 84.01 neurons in the antimesocolic region. We conclude that there is a variation in the density of NADPH-diaphorase positive neurons in the intestinal circumference; that the NADH-diaphorase positive neuronal subpopulation represented 42.7 percent of that stained with Giemsa; and that the NADPH-diaphorase positive neurons represented 37.8 percent of the whole myenteric population
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Colo
/
Plexo Mientérico
/
Neurônios
Limite:
Animais
Idioma:
Inglês
Revista:
Arq. neuropsiquiatr
Assunto da revista:
Neurologia
/
Psiquiatria
Ano de publicação:
2003
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Universidade Estadual de Maringa/BR
/
Universidade Paranaense/BR
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