An immunohistochemical study of the endocrine cells in the gastrointestinal mucosa of the Caiman latirostris.

Yamada, Junzo; Campos, V. J. M.; Kitamura, Nobuo; Pacheco, Arli C.; Yamashita, T; Yanaihara, Noboru

doi:10.1679/aohc.50.229

Cited by 26 publications

(14 citation statements)

References 23 publications

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“…The same result was observed in different reptilian species, including in the crocodilians C. latirostris (Yamada et al 1987) and Alligator sinensis (Wu et al 1999); the chelonians M. caspica, T. gracea, L. lepida (Perez-Tomas et al 1989; see also Tarakçi et al 2005 for M. caspica) and Ocadia sinensis (Liu et al 2007); and the squamates E. kingii (Arena et al 1990), C. chalcides, Z. madagascariensis (Morescalchi et al 1997), T. wolteri , G. japonicus, E. chinensis, S. indicus, E. elegans (Huang & Wu 2005), and T. scripta (Zhang & Wu 2009).…”

Section: Intestinesupporting

confidence: 82%

“…Gastrin-IR cells were restricted to the small intestine of T. torquatus in the present study, and are prevalent in the small intestine of reptile species such as the chelonians Chrysemys picta (Gapp et al 1985), Testudo gracea, Mauremys caspica and Lacerta lepida (Perez-Tomas et al 1989); the crocodilian Caiman latirostris (Yamada et al 1987); and the lizards E. kingii (Arena et al 1990), Podarcis hispanica (Burrell et al 1992), T. wolteri ), G. japonicus, E. chinensis, S. indicus and E. elegans (Huang & Wu 2005). However, the gastrin-IR cells were found in the large intestine of some reptilian species such as the Testudines, including Mauremys caspica (Tarakçi et al 2005) and Trachemys scripta elegans (Zhang & Wu 2009).…”

Section: Intestinesupporting

confidence: 57%

“…Cholecystokinin-8-IR cells were only observed in the small intestine of T. torquatus, similarly to reptilian species such as the crocodilian C. latirostris (Yamada et al 1987), and the lizards P. hispanica (Burrell et al 1992) and T. wolteri ).…”

Section: Intestinementioning

confidence: 79%

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Immunohistochemical study of the six types of endocrine cells in the enteropancreatic system of the lizard Tropidurus torquatus (Squamata: Tropiduridae)

Firmiano

Cardoso

Sales

et al. 2017

The European Zoological Journal

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The present study investigates the aspects of endocrine cells secreting cholecystokinin, gastrin, insulin, glucagon, somatostatin and serotonin in the enteropancreatic system of Tropidurus torquatus. The specimens were collected in Marambaia Island, Sepetiba Bay, Rio de Janeiro State, Brazil. The animals' intestine and pancreas were removed, fixed, processed and then subjected to immunohistochemical techniques. Three cell types, immunoreactive (IR) to gastrin, cholecystokinin-8 and serotonin, were identified in the intestinal mucosa. Serotonin was found in the small and large intestines, whereas gastrin and cholecystokinin-8 cells were only observed in the large intestine of T. torquatus. Glucagon, somatostatin and insulin were not observed in the intestines at all. Only glucagon, somatostatin and insulin were identified in the pancreas of the studied lizards. The dorsal lobe showed a large number of endocrine cells scattered throughout the exocrine parenchyma and in the exocrine duct walls. The present study shows that the intestine and pancreas of T. torquatus hold most of the regulatory peptides, presenting a structure similar to that in other vertebrates such as birds and mammals. The endocrine cells identified in the lizards' enteropancreatic system evidences the good phylogenetic preservation of the regulatory peptides' molecular structure.

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Section: Intestinesupporting

confidence: 82%

Section: Intestinesupporting

confidence: 57%

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Immunohistochemical study of the six types of endocrine cells in the enteropancreatic system of the lizard Tropidurus torquatus (Squamata: Tropiduridae)

Firmiano

Cardoso

Sales

et al. 2017

The European Zoological Journal

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“…In the present study, however, they were detected in the pyloric gland region as well as in the whole length of the intestine. To date, the presence of motilin-IR cells in the pyloric gland region has been reported in some reptiles [2,40] and birds [39], but not in mammals. The distribution of motilin-IR cells in the large intestine has been reported only in the musk shrew [21] and lesser mouse deer [1].…”

Section: Discussionmentioning

confidence: 99%

Immunohistochemical Survey of the Gut Endocrine Cells in the Common Tree Shrew (Tupaia belangeri).

Yamada

Tauchi

Rerkamnuaychoke

et al. 1999

The Journal of Veterinary Medical Science

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ABSTRACT. Regional distribution and relative frequency of endocrine cells in the gastrointestinal tract of the common tree shrew (Tupaia belangeri) were studied immunohistochemically. Ten types of immunoreactive endocrine cells were localized in the gastric mucosa, i.e., chromogranin-, serotonin-, gastrin-, somatostatin-, bovine pancreatic polypeptide (BPP)-, enteroglucagon-, pancreatic glucagon-, peptide tyrosine tyrosine (PYY)-, motilin-, and substance P (SP)-immunoreactive (IR) cells. In the intestine, 13 types of immunoreactive cells were observed, i.e., chromogranin-, serotonin-, somatostatin-, gastrin-, BPP-, enteroglucagon-, PYY-, secretin-, cholecystokinin (CCK)-, gastric inhibitory peptide (GIP)-, motilin-, neurotensin-, and SP-IR cells. The regional distribution and relative frequency of the cell types varied along the gastrointestinal tract. Basically, the types, distribution, and relative frequency of the gut endocrine cells were similar to those reported in other mammalian species. However, some characteristic findings were noted in the present study: (1) the considerably large number of gastrin-IR cells in the pyloric region; (2) numerous serotonin-IR cells in the stomach; (3) appreciable number of BPP-IR cells in the transitional region of the stomach; and (4) wide distribution of PYY-and motilin-IR cells in the gut.-KEY WORDS: gut endocrine cell, immunohistochemistry, intestine, stomach, tree shrew.

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“…Glucagon immunostaining was carried out by the streptoavidin-biotin (SAB) method (Histofine SAB-PO Kit; Nichirei, Tokyo), using a rabbit anti-human glucagon antibody (OAL-127)(33). I. Serum prolactin (PRL) and growth hormone (GH) levels in pituitary-grafted (PG) mice.…”

mentioning

confidence: 99%

Enhanced cell proliferation by hyperprolactinemia in both exocrine and endocrine pancreas in mice

Matsuda

Mori

Park

et al. 1994

European Journal of Endocrinology

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Effects of hyperprolactinemia induced by ectopic anterior pituitary grafting on the pancreas were studied in male SHN mice. After pituitary grafting, the weight of pancreas rapidly increased. A similar increase in pancreatic weight was observed during lactation, a condition associated with elevated prolactin levels. Results of DNA and protein assays revealed that the increase in pancreatic weight in both pituitary-grafted and lactating mice was mainly due to the increase in the cell number, because the total DNA content per pancreas was greater in these mice than the controls. An increase in fluid volume or hypertrophy of cells also contributes to the weight increase; in contrast, the DNA and protein contents per unit tissue weight decrease. The rate of DNA synthesis determined by 5-bromo-2'-deoxyuridine labeling was higher both in acinar cells and islet B cells in pituitary-grafted mice than in the controls. Thus, hyperprolactinemia stimulates cell proliferation in exocrine pancreas as well as endocrine islets. The effect of prolactin seems to be indirect on acinar cells, because only B cells showed prolactin immunoreactivity in the mouse pancreas. In addition, insulin might not be a mediator of the prolactin effect on acinar cells, because the serum insulin level in pituitary-grafted mice failed to show any change.

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An immunohistochemical study of the endocrine cells in the gastrointestinal mucosa of the Caiman latirostris.

Cited by 26 publications

References 23 publications

Immunohistochemical study of the six types of endocrine cells in the enteropancreatic system of the lizard Tropidurus torquatus (Squamata: Tropiduridae)

Immunohistochemical study of the six types of endocrine cells in the enteropancreatic system of the lizard Tropidurus torquatus (Squamata: Tropiduridae)

Immunohistochemical Survey of the Gut Endocrine Cells in the Common Tree Shrew (Tupaia belangeri).

Enhanced cell proliferation by hyperprolactinemia in both exocrine and endocrine pancreas in mice

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