Immunocytochemical and ultrastructural characterization of endocrine cells in chicken proventriculus

Martı́nez, Alfredo; López, Jesús García; Barrenechea, M. A.; Sesma, P.

doi:10.1007/bf00327287

Cited by 20 publications

(5 citation statements)

References 21 publications

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“…In the newly hatched chick, a few serotonin-IR cells are evident in the proventriculus [16,25,32]. Such cells are widespread throughout the gastrointestinal tract in adult domestic ducks [4].…”

Section: Discussionmentioning

confidence: 99%

Distribution and ontogeny of gastrin- and serotonin-immunoreactive cells in the proventriculus of developing chick, Gallus gallus domestica

Aksoy¹,

Çınar

2009

J Vet Sci

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The ontogeny and distribution of gastrin- and serotonin-immunoreactive (IR) cell in the proventriculus of chicks (Gallus gallus domestica, n = 60) in different growth periods was examined immunohistochemically using antisera specific to gastrin and serotonin. Gastrin and serotonin-IR cells were detected in chick proventriculus. Gastrin-IR cells were first evident after 12 days of incubation in lamina epithelialis and compound glands, while serotonin-IR cells were observed only in compound glands at that same time. Gastrin-IR and serotonin-IR cells increased in frequency on incubation day 14 and 16, respectively. Towards the end of incubation, gastrin- and serotonin-IR cell numbers decreased. In adult chicken, both IR cells were present but not lower numbers. The observations demonstrate the presence of gastrin- and serotonin-IR cells in the proventriculus of developing chicks in temporally changing frequencies.

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Section: Discussionmentioning

confidence: 99%

Distribution and ontogeny of gastrin- and serotonin-immunoreactive cells in the proventriculus of developing chick, Gallus gallus domestica

Aksoy¹,

Çınar

2009

J Vet Sci

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“…Cells containing glucagon, GLP-1 and GLP-2 have been identified in both the proventriculus and duodenum of the chicken (Martinez et al, 1991;. The alpha cells of the Islets of Langerhans in the pancreas and proventriculus produce glucagon from pre-proglucagon by the action of prohormone convertase enzyme.…”

Section: Glucagon and Glucagon-like Peptidesmentioning

confidence: 99%

Biology of the Gastrointestinal Tract in Poultry

Scanes

Pierzchała-Koziec

2014

Avian Biology Research

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This review provides an overview of the anatomy and physiology of the gastro-intestinal tract (GIT) of poultry, particularly of the domesticated chicken. The structure and functioning of the major regions of the GIT are discussed bringing together recent studies with the older, often neglected, literature. Attention is focused on the GIT as an immune organ and on GIT fermentation/bacterial colonisation. In addition, the interactions of nutrition with GIT biology are discussed. The roles of neuropeptides and hormones on the development and functioning of the GIT are extensively reviewed.

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“…The proventriculus of the Houbara bustard is similar to that of other avian species and consists of a superficial layer of columnar cells lining the luminal surface and crypts, a submucosa with several tubular compound glands opening into a central secretory space, a double layer of smooth muscles, and a serosal layer that covers the organ (Martinez et al, 1991). Immunolabeling was absent in all control experiments.…”

Section: Resultsmentioning

confidence: 90%

“…GRP cells occur in the middle of the submucosal glands of the duck but are dispersed throughout glandular lobules of the finch (Yamada et al, 1985). Other workers (Martinez et al, 1991) found bombesin or GRP-immunoreactive endocrine cells in the inner portions of the submucosal glands of newborn farm chicks.…”

Section: Discussionmentioning

confidence: 94%

Neurotransmitters regulating acid secretion in the proventriculus of the Houbara bustard (Chlamydotis undulata): A morphological viewpoint

Mensah-Brown¹,

Lawrence²

2001

Journal of Morphology

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Endocrine cells containing somatostatin (Som), gastrin-releasing peptide (GRP), and neuronal nitric oxide synthase (nNOS) and nerve fibers containing choline acetyl transferase (ChAT), tyrosine hydroxylase (TH), galanin (Gal), substance P (SP), and vasoactive intestinal polypeptide (VIP) were immunolocalized in the proventriculus of the Houbara bustard, Chlamydotis undulata. While GRP-immunoreactive (GRP-IR) cells occur in the inner zone, somatostatin (Som-IR) and polyclonal nNOS (nNOS-IR) immunoreactive cells were localized mainly in the peripheral zone of submucosal glands. GRP-IR, Som-IR, and nNOS-IR cells were occasionally observed in the walls of the gastric glands. Endocrine cells are of the closed variety and usually possess apical processes extending along the basal surfaces of adjacent nonreactive cells. Ultrastructural features of these cells are typical. ChAT, Gal, SP, VIP, and TH were immunolocalized in nerve fibers and terminals in the walls of arterioles and capillaries at the periphery of submucosal glands. Immunoreactivity to monoclonal nNOS occurred mainly in neuronal cell bodies in ganglia located around the submucosal glands. ChAT and TH immunoreactive cell bodies were also occasionally seen around the submucosal glands in the peripheral region. Immunoreactivity to Gal, SP, and VIP, but not ChAT or TH, was discernible around the walls of gastric glands. It was concluded that the distribution of neurotransmitters in neuronal structures is similar, but that of the endocrine cells varies from that of some avian species. The roles of these neurotransmitters in the regulation of acid secretion are discussed.

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Immunocytochemical and ultrastructural characterization of endocrine cells in chicken proventriculus

Cited by 20 publications

References 21 publications

Distribution and ontogeny of gastrin- and serotonin-immunoreactive cells in the proventriculus of developing chick, Gallus gallus domestica

Distribution and ontogeny of gastrin- and serotonin-immunoreactive cells in the proventriculus of developing chick, Gallus gallus domestica

Biology of the Gastrointestinal Tract in Poultry

Neurotransmitters regulating acid secretion in the proventriculus of the Houbara bustard (Chlamydotis undulata): A morphological viewpoint

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