Arquivos de Neuro-Psiquiatria | |
Regional differences in the number and type of myenteric neurons in the descending colon of rats | |
Eduardo José De Almeida Araújo2  Débora De Mello Gonçales Sant'ana2  Sônia Lucy Molinari1  Marcílio Hubner De Miranda Neto1  | |
[1] ,Universidade ParanaenseUmuarama PR ,Brasil | |
关键词: myenteric plexus; Giemsa; NADH-diaphorase; NADPH-diaphorase; rat; descending colon; plexo mioentérico; Giemsa; NADH-diaforase; NADPH-diaforase; rato; colo descendente; | |
DOI : 10.1590/S0004-282X2003000200011 | |
来源: SciELO | |
【 摘 要 】
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 mm² 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% of that stained with Giemsa; and that the NADPH-diaphorase positive neurons represented 37.8% of the whole myenteric population.
【 授权许可】
CC BY
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