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Histometric parameters of the large intestine of hybrid marmosets Callithrix sp. under the influence of seasonality.
Anat Histol Embryol
November 2021
Departamento de Biologia Animal, Universidade Federal de Viçosa, Viçosa, Brazil.
Morphofunctional characteristics of the large intestine are rarely explored to understand the physiology, behavior and ecology of neotropical primates. In this study, we analyzed the histometric parameters of the large intestine of hybrid marmosets (Callithrix sp.) captured in forest fragments of Viçosa-Brazil, under seasonal interference.
View Article and Find Full Text PDFQuantification of endocrine cells and ultrastructural study of insulin granules in the large intestine of opossum Didelphis aurita (Wied-Neuwied, 1826).
Tissue Cell
February 2014
Department of General Biology, Federal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n. Campus Universitário, Viçosa 36570-000, MG, Brazil.
This study aimed to investigate the distribution of argyrophil, argentaffin, and insulin-immunoreactive endocrine cells in the large intestine of opossums (Didelphis aurita) and to describe the ultrastructure of the secretory granules of insulin-immunoreactive endocrine cells. Fragments of the large intestine of 10 male specimens of D. aurita were collected, processed, and subjected to staining, immunohistochemistry, and transmission electron microscopy.
View Article and Find Full Text PDFMorphologic characterization and distribution of endocrine cells in the large intestine of the opossum Didelphis aurita (Wied-Neuwied, 1826).
Tissue Cell
October 2013
Department of General Biology, Federal University of Viçosa UFV, Viçosa, MG, Brazil.
This study was designed to investigate the morphology and distribution of argyrophil, argentaffins, and insulin-immunoreactive endocrine cells in the large intestine of the opossum Didelphis aurita. Fragments of the large intestine of 10 male specimens of the opossum D. aurita were collected, processed, and submitted for histochemistry, immunohistochemistry, and scanning electron microscopy.
View Article and Find Full Text PDFCytochemical identification of endocrine thymus of chicken in relation to aging.
Vet Res Forum
February 2015
Department of Anatomy, Histology and Embryology, Faculty of Veterinary Science and Animal Husbandry, Orissa University of Agriculture and Technology, Bhubaneswar, India.
Age related cytochemical changes of thymic endocrine cells were studied in 78 day old chicks at five day interval to age of day 60 employing a panel of cytochemical stains. Methenamine silver revealed cell morphology including cell processes distinctly while diamine silver revealed a stronger argentaffinity in these cells. The cells had greater affinity for diamine silver compared to methenamine silver (Argentaffin), followed by formaldehyde induced autofluorescence, argyrophilia, lead hematoxylin and HCl-toluidine.
View Article and Find Full Text PDFEndocrine cells and nerve ganglia of the small intestine of the Opossum Didelphis aurita Wied-Neuwied, 1826 (Mammalia: Didelphidae).
An Acad Bras Cienc
September 2012
Departamento de Biologia Molecular, Universidade Federal da Paraíba, João Pessoa, PB, Brasil.
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.
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