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
Article
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| ID: lil-339490
Responsable en Bibliothèque :
BR1.1
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
Texte intégral:
1
Indice:
LILACS
Sujet Principal:
Côlon
/
Plexus myentérique
/
Neurones
Limites du sujet:
Animals
langue:
En
Texte intégral:
Arq. neuropsiquiatr
Thème du journal:
NEUROLOGIA
/
PSIQUIATRIA
Année:
2003
Type:
Article