Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)

The Squamata lizards Tropiduros torquatus and Salvator merianae are omnivores with different diets and foraging strategies, which requires adequate physiological responses of enteroendocrine cells, since they control digestive events, gastrointestinal epithelium renewal, metabolism and food intake....

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Autores principales:	Barbosa Lopes, Fernanda, Assis Rodrigues, Maria Luiza, Souza Silva, Carlos Henrique de, Souza Rodrigues Sartori, Sirlene
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2021
Materias:	Zoología Diet Argentaffin cells Argyrophilic cells Histology Morpho-physiology Reptiles Dieta Células argentafins Células argirófilas Histología Morfofísiologia Répteis
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/120237 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/18906
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-120237
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institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Zoología Diet Argentaffin cells Argyrophilic cells Histology Morpho-physiology Reptiles Dieta Células argentafins Células argirófilas Histología Morfofísiologia Répteis
spellingShingle	Zoología Diet Argentaffin cells Argyrophilic cells Histology Morpho-physiology Reptiles Dieta Células argentafins Células argirófilas Histología Morfofísiologia Répteis Barbosa Lopes, Fernanda Assis Rodrigues, Maria Luiza Souza Silva, Carlos Henrique de Souza Rodrigues Sartori, Sirlene Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
topic_facet	Zoología Diet Argentaffin cells Argyrophilic cells Histology Morpho-physiology Reptiles Dieta Células argentafins Células argirófilas Histología Morfofísiologia Répteis
description	The Squamata lizards Tropiduros torquatus and Salvator merianae are omnivores with different diets and foraging strategies, which requires adequate physiological responses of enteroendocrine cells, since they control digestive events, gastrointestinal epithelium renewal, metabolism and food intake. Thus, we aim to describe the distribution and frequency of enteroendocrine cells in the digestive tract of these two lizard’s species. Five individuals of each species were collected, euthanized and the digestive organs removed. Histological sections were submitted to the techniques of Grimelius for argyrophilic cells and Masson-Fontana for argentaffin cells. Both endocrine cells were found in the lining and glandular epithelium, with a pyramidal, oval, rounded, or elongated shape. Argyrophilic cells were observed in both species, predominantly in the stomach, but absent in the cranial esophagus. Argentaffin cells were distributed in almost the entire digestive tract but absent in the cranial portion of the esophagus and small intestine in both species, and with high frequency in the T. torquatus pyloric region. The absence of argentaffin cells in the cranial portion of the small intestine is intriguing and may reveal greater neural control over certain secretomotor functions involving this segment. We concluded that the inter-specific and inter-regional variations in the distribution and frequency of these cells may reflect the regulatory functions and mechanisms of each organ, taking also into account the oscillations of the food and nutritional status of animals in the wild.
format	Articulo Articulo
author	Barbosa Lopes, Fernanda Assis Rodrigues, Maria Luiza Souza Silva, Carlos Henrique de Souza Rodrigues Sartori, Sirlene
author_facet	Barbosa Lopes, Fernanda Assis Rodrigues, Maria Luiza Souza Silva, Carlos Henrique de Souza Rodrigues Sartori, Sirlene
author_sort	Barbosa Lopes, Fernanda
title	Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
title_short	Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
title_full	Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
title_fullStr	Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
title_full_unstemmed	Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)
title_sort	identification of enteroendocrine cells of tropidurus torquatus and salvator merianae (squamata: lacertilia)
publishDate	2021
url	http://sedici.unlp.edu.ar/handle/10915/120237 https://ppct.caicyt.gov.ar/index.php/cuadherpetol/article/view/18906
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Identification of enteroendocrine cells of Tropidurus torquatus and Salvator merianae (Squamata: Lacertilia)

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