title: Distribution and ontogeny of gastrin- and serotonin-immunoreactive cells in the proventriculus of developing chick, Gallus gallus domestica.
abstract: 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.
authors.affiliation: Histology and Pathology Laboratory, Mediterranean Fisheries Research Production and Education Institute, PK 190, Antalya, 07001, Turkey. aksoy@akdenizsuurunleri.gov.tr
authors.forename: Abdulkerim
authors.initials: A
authors.lastname: Aksoy
authors.forename: Kenan
authors.initials: K
authors.lastname: Cinar
mesh_terms: D000818:Animals; D002642:Chick Embryo / Q000378:metabolism*; D055098:Endocrine Cells / Q000166:cytology / Q000378:metabolism; D005755:Gastrins / Q000378:metabolism*; D018507:Gene Expression Regulation, Developmental / Q000502:physiology; D011531:Proventriculus / Q000196:embryology* / Q000378:metabolism*; D012701:Serotonin / Q000378:metabolism*
chemical_list: D005755:Gastrins; D012701:Serotonin