ULTRASTRUCTURE OF ENDOCRINE CELLS OF THE STOMACH (PROVENTRICULUS AND GIZZARD) OF THE RED-CAPPED CARDINAL (Paroaria g. gularis, LINNAEUS, 1766)

Catroxo, Márcia Helena Braga; Lima, Maria Aparecida; Petrella, Selma

doi:10.4067/s0716-98682001000300002

Cited by 2 publications

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“…The localization of endocrine cells in the gastrointestinal tract has been investigated using immunohistochemical methods [ 2 , 19 ], fluorescence methods [ 18 , 28 ] and electron microscopy [ 6 , 21 ]. Endocrine cells observed to be in contact with the lumen of the organ are classified as an, "open type" and cells not contacting the lumen are classified have been as "closed type" [ 26 ].…”

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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