Adenohypophysis
Mostrando 1-12 de 32 artigos, teses e dissertações.
-
1. Desenvolvimento estrutural da hipófise e ontogenia das células adeno-hipofisárias do dourado Salminus brasiliensis (Cuvier, 1816) Teleostei, Characiformes. / Structural development of the pituitary gland and ontogeny of adenohypophyseal cells from dourado Salminus brasiliensis (Cuvier, 1816) Teleostei, Characiformes.
Neste estudo foi verificado que a hipófise de S. brasiliensis era composta por dois tecidos, a neuro hipófise (NH) e a adeno-hipófise (AH). Nesta última, foram distinguidos sete tipos celulares. Na RPD foram detectadas as células adrenocorticotrópicas e prolactínicas, na PPD as células gonadotrópicas, somatotrópicas e tireotrópicas, e na PI, as c�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
-
2. Caracterização endócrina durante o ciclo reprodutivo da tabarana Salminus hilarii (Characiformes: Characidae), em três ambientes distintos: natural, impactado e cativeiro / Endrocrine characterization during the reproductive cycle of tabarana Salminus hilarii (Characiformes: Characidae), in theree distinct environments: natural, dam and captivity
A tabarana Salminus hilarii (Characiformes) é uma espécie reofílica de grande importância ecológica na Bacia do Alto Tietê (São Paulo/SP, Brasil). Atualmente esta espécie sofre com a poluição (industrial e doméstica) e a construção de barragens na região, o que pode prejudicar o comportamento migratório reprodutivo das espécies reofílicas, b
Publicado em: 2007
-
3. Morpho-functional characteristics of sex reversal in Synbranchidae (Teleostei: Synbranchiformes) / Perfil morfo-funcional da inversão de sexo em Synbranchidae (Teleostei: Synbranchiformes)
Teleost fishes exhibit several sexual patterns during their ontogeny, in which the gonads change into functional ovaries or testes. In distinct Orders, both gonochoristic and hermaphrodite species, simultaneous as well as sequential or consecutive, can be found. In sequential hermaphroditism (protandrous or protogynous), sex change in adult individuais invol
Publicado em: 2006
-
4. Morphometric and stereological study of the adenohypophysis granular cells associated to GH producing and evaluation of the biochemical profile of IGF-I in golden retriever muscular dystrophy (GRMD) / Estudo quantitativo das células granulares adenohipofisárias associadas à produção do hormônio de crescimento e avaliação do perfil bioquímico do IGF-I em cães Golden Retriever com Distrofia Muscular (GRMD)
A Distrofia Muscular de Duchenne (DMD) é uma doença recessiva ligada ao cromossomo ?X?, causada pela ausência da proteína distrofina que ocorre em vários tecidos, sendo caracterizada por uma severa disfunção da musculatura esquelética ocasionando morte prematura do paciente. Embora controverso, alguns autores reportaram que o GH (hormônio do crescim
Publicado em: 2005
-
5. ATP-modulated K+ channels sensitive to antidiabetic sulfonylureas are present in adenohypophysis and are involved in growth hormone release.
The adenohypophysis contains high-affinity binding sites for antidiabetic sulfonylureas that are specific blockers of ATP-sensitive K+ channels. The binding protein has a M(r) of 145,000 +/- 5000. The presence of ATP-sensitive K+ channels (26 pS) has been demonstrated by electrophysiological techniques. Intracellular perfusion of adenohypophysis cells with a
-
6. Histochemistry of the Adenohypophysis
-
7. Regional dissociation of beta-endorphin and enkephalin contents in rat brain and pituitary.
beta-Endorphin and enkephalin in extracts of whole brain, various brain regions, adenohypophysis, and combined pars intermedia and neurohypophysis of the rat were measured by radioimmunoassay. In brain extracts, the immunoreactive substances were further separated according to molecular size by gel filtration. beta-Endorphin was found in the diencephalon but
-
8. Cyto-differentiation and portal vascular development in the mouse adenohypophysis.
Pituitaries of fetal and postnatal (15 days p.c.-28 days p.n.) and adult (male) mice were studied by light and electron microscopy to correlate the developmental pattern of the hypothalamo-hypophysial vascular system with the time of onset of function of the adenohypophysis. The superior and anterior regions of the adenohypophysis become vascularized at 17 d
-
9. Molecular regulation of receptors: interaction of beta-estradiol and progesterone with the muscarinic system.
The effects of various substrates on the binding of agonists to muscarinic receptors were studied in the rat hypothalamus and adenohypophysis by competition experiments using the highly specific tritiated muscarinic antagonist N-methyl-4-piperidyl benzilate. It was found that agonist binding properties were affected only by the steroid sex hormones (beta-est
-
10. Some observations on the ultrastructure of the stellate cells of the pars distalis of the guinea-pig.
The ultrastructural appearance of the stellate cells of the guinea-pig adenohypophysis is described, and their functional significance discussed.
-
11. Immunohistochemical distribution of regulatory peptides in the human fetal adenohypophysis
We have studied here the cellular distribution of several regulatory peptides in hormone-producing cells of the human pituitary during the fetal period. Immunohistochemistry was used to show the expression of several regulatory peptides, namely Angiotensin-II, Neurotensin and Galanin, at successive gestational stages and their co-localization with hormones i
Blackwell Science Inc.
-
12. Some observations on the ultrastructure of the adenohypophysis of the Plains viscacha (Lagostomus maximus).
The ultrastructural appearance of the pars distalis of the Plains viscacha is described. Of particular interest are the prolactin cells and stellate cells and the intercellular cysts or channels which may be part of a transport system for hormones.