Endocrine cells and nerve ganglia of the small intestine of the Opossum Didelphis aurita Wied-Neuwied, 1826 (Mammalia: Didelphidae)

The nervous and endocrine systems jointly control intestinal movements, secretions of their glands and also participate of the processes of nutrient digestion and absorption. Therefore, the central objective of this study was to verify the existence of a possible relationship between the number of n...

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Bibliographic Details
Published in:Anais da Academia Brasileira de Ciências 2012-09, Vol.84 (3), p.747-758
Main Authors: Freitas-Ribeiro, Gláucia M, Fonseca, Cláudio C, Sartori, Sirlene S R, Loures-Ribeiro, Alan, Neves, Clóvis A
Format: Article
Language:English
Subjects:
Animals
argentaffin cells
argyrophillic cells
células argentafins
células argirófilas
células endócrinas
Didelphis
endocrine cells
Enteroendocrine Cells - cytology
Female
ganglia
Ganglia - anatomy & histology
Ganglia - cytology
gânglios
insulin
insulina
Intestine, Small - cytology
Intestine, Small - innervation
Male
Models, Animal
MULTIDISCIPLINARY SCIENCES
Myenteric Plexus - cytology
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Summary:The nervous and endocrine systems jointly control intestinal movements, secretions of their glands and also participate of the processes of nutrient digestion and absorption. Therefore, the central objective of this study was to verify the existence of a possible relationship between the number of nervous cells and ganglia of the submucosal and myenteric plexuses and the number of endocrine cells in the small intestine of adult D. aurita. The utilized staining techniques were Grimelius, modified Masson-Fontana, direct immunoperoxidase and H-E. Argyrophillic, argentaffin and insulin immunoreactive endocrine cells do not numerically vary between the initial, mid and final regions of the duodenum, jejunum and ileum (P>0.05), except for argyrophillic cells in the jejunum (P>0.05). No numerical relationship has yet been verified between the number of nerve ganglia and endocrine cells, and also between nervous and endocrine cells. We recommended the use of new immunohistochemical techniques to confirm the numerical correlation between the nervous and endocrine systems in the small intestine. The morphology and distribution of endocrine cells and the nerve ganglia studied were similar to those encountered in eutherian mammals.
ISSN:0001-3765
1678-2690
1678-2690
DOI:10.1590/S0001-37652012005000045