Consulta: subjectFacets:"Adenohypophysis"
Registros recuperados: 2
Data/hora: 09/06/2024 11:54:06

Morphological and immunohistochemical comparison of the pituitary gland between a tropical Paracheirodon axelrodi and a subtropical Aphyocharax anisitsi characids (Characiformes: Characidae)
Provedor de dados: 83
Autores: Camacho,Laura Rincón; Pozzi,Andrea G.; de Freitas,Eliane G.; Shimizu,Akio; Pandolfi,Matías.
ABSTRACT Cardinal tetra Paracheirodon axelrodi and bloodfin tetra Aphyocharax anisitsi are two species of characids with high trade value as ornamental fish in South America. Although both species inhabit middle water layers, cardinal neon exhibits a tropical distribution and bloodfin tetra a subtropical one. Generally, these species are difficult to grow, so it becomes essential to know some key components of the neuroendocrine system to achieve their reproduction in captivity. Considering the importance of deepening the knowledge of the reproductive physiology through functional morphology, for the first time in this work we performed an anatomical, morphological and immunohistochemical analysis of the pituitary gland of these two species. In both...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adenohypophysis; Histology; Neurohypophysis; Ornamental fish.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252020000100211

A 66-kDa protein of bovine hypophyseal Pars tuberalis induces luteinizing hormone release from rat Pars distalis
Provedor de dados: 47
Autores: Lafarque,Martha; Oliveros,Liliana.
In this study, evidence for a factor secreted by bovine hypophyseal pars tuberalis that stimulates luteinizing hormone (LH) release from rat pars distalis cells is shown. The secretion products of bovine pars tuberalis cells into the culture medium were assayed on dispersed rat pars distalis cells in 30 min incubations and superfusion experiments. The culture medium from pars tuberalis total cell populations, added at a dose of 6 &amp;#956;g per tube, induced the greater LH release from pars distalis cells, without effect on follicle stimulating hormone (FSH) release. After pars tuberalis cells separation on a discontinuos Percoll gradient, only the culture medium of cells from 50 and 60% strength Percoll were able to release LH from rat pars distalis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Adenohypophysis; Gonadotropes; Lactotrophs; Follicle stimulating hormone; Prolactin.
Ano: 2008
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0327-95452008000300001