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Abstract:

Prolactin, growth hormone and somatolactin constitute a hormone family because they are structurally related and are secreted by acidophilic cells of different regions of the adenohypohyisis. In this work, we report the ontogeny of ir-prolactin, ir-growth hormone and ir-somatolactin cells in the developing pituitary gland of the cichlid fish Cichlasoma dimerus (Teleostei; Perciformes). Antisera raised against fish pituitary hormones were used. In this species hatching occurs 54 hs after fertilization and the three different cell types were recognized two days later. The neurohypophysis was recognized on day 14 after hatching and in later stages it began to show the characteristic deep interdigitations of the adults. On day 42 (juvenile stage) the distribution of ir-PRL, ir-GH and ir-SL showed the pattern described for adults of this species. The ir-SL cells were not PAS-positive in larvae as they are in adults. This would suggest the presence of a nonglycosilated form of somatolactin in early stages of development which may coexist in adults with a glycosilated form. The appearence of these hormones so early in development suggest their importance in the survival of fish larvae but further studies focused on the ontogeny of hypothalamic factors that regulate their synthesis and secretion must be performed.

Registro:

Documento: Artículo
Título:Ontogeny of immunoreactive somatolactin, prolactin and growth hormone secretory cells in the developing pituitary gland of Cichlasoma dimerus (Teleostei, Perciformes)
Autor:Pandolfi, M.; Paz, D.A.; Maggese, C.; Ravaglia, M.; Vissio, P.
Filiación:Laboratorio de Embriología Animal, Departamento de Ciencias Biológicas, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
Palabras clave:Adenohypophysis; Development; Fish; Immunocytochemistry; Pituitary hormones; growth hormone; hypophysis hormone; prolactin; somatolactin; unclassified drug; fish protein; glycoprotein; growth hormone; hypophysis hormone; prolactin; somatolactin protein, fish; adenohypophysis; animal tissue; article; cytoarchitecture; hypophysis; immunocytochemistry; immunoreactivity; nonhuman; ontogeny; organogenesis; Perciformes; priority journal; secretory cell; adenohypophysis; aging; animal; enzyme immunoassay; fluorescent antibody technique; growth, development and aging; metabolism; newborn; physiology; Animalia; Cichlasoma; Cichlidae; Perciformes; Teleostei; Aging; Animals; Animals, Newborn; Fish Proteins; Fluorescent Antibody Technique, Indirect; Glycoproteins; Growth Hormone; Immunoenzyme Techniques; Perciformes; Pituitary Gland, Anterior; Pituitary Hormones; Prolactin
Año:2001
Volumen:204
Número:1
Página de inicio:461
Página de fin:468
Título revista:Anatomy and Embryology
Título revista abreviado:Anat. Embryol.
ISSN:03402061
CODEN:ANEMD
CAS:growth hormone, 36992-73-1, 37267-05-3, 66419-50-9, 9002-72-6; hypophysis hormone, 85883-81-4; prolactin, 12585-34-1, 50647-00-2, 9002-62-4; Fish Proteins; Glycoproteins; Growth Hormone, 9002-72-6; Pituitary Hormones; Prolactin, 9002-62-4; somatolactin protein, fish
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402061_v204_n1_p461_Pandolfi

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Citas:

---------- APA ----------
Pandolfi, M., Paz, D.A., Maggese, C., Ravaglia, M. & Vissio, P. (2001) . Ontogeny of immunoreactive somatolactin, prolactin and growth hormone secretory cells in the developing pituitary gland of Cichlasoma dimerus (Teleostei, Perciformes). Anatomy and Embryology, 204(1), 461-468.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402061_v204_n1_p461_Pandolfi [ ]
---------- CHICAGO ----------
Pandolfi, M., Paz, D.A., Maggese, C., Ravaglia, M., Vissio, P. "Ontogeny of immunoreactive somatolactin, prolactin and growth hormone secretory cells in the developing pituitary gland of Cichlasoma dimerus (Teleostei, Perciformes)" . Anatomy and Embryology 204, no. 1 (2001) : 461-468.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402061_v204_n1_p461_Pandolfi [ ]
---------- MLA ----------
Pandolfi, M., Paz, D.A., Maggese, C., Ravaglia, M., Vissio, P. "Ontogeny of immunoreactive somatolactin, prolactin and growth hormone secretory cells in the developing pituitary gland of Cichlasoma dimerus (Teleostei, Perciformes)" . Anatomy and Embryology, vol. 204, no. 1, 2001, pp. 461-468.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402061_v204_n1_p461_Pandolfi [ ]
---------- VANCOUVER ----------
Pandolfi, M., Paz, D.A., Maggese, C., Ravaglia, M., Vissio, P. Ontogeny of immunoreactive somatolactin, prolactin and growth hormone secretory cells in the developing pituitary gland of Cichlasoma dimerus (Teleostei, Perciformes). Anat. Embryol. 2001;204(1):461-468.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03402061_v204_n1_p461_Pandolfi [ ]