Hormones Of The Adenohypophysis
Mostrando 1-8 de 8 artigos, teses e dissertações.
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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
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2. 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
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3. 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
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4. 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.
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5. 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.
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6. Seasonal changes in the ultrastructure of the thyrotroph in the wookchuck (Marmota monax) adenohypophysis.
Throtrophs of the woodchuck anterior pituitary are described through the four seasons of the year. Evidence of an increase in number and activity in the spring is presented. Activity of the thyrotroph is seen to continue through the summer and decline in the autumn to quiescence during the hibernatory period of winter. The significance of these findings is d
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7. Stimulation of Adenosine 3′:5′-Cyclic Monophosphate Accumulation in Anterior Pituitary Gland In Vitro by Synthetic Luteinizing Hormone-Releasing Hormone
A near-maximal dose (20 ng/ml) of synthetic luteinizing hormone(LH)-releasing hormone/follicle-stimulating hormone(FSH)-releasing hormone added to incubated anterior pituitary tissue of male rats leads to concomitant increases of intracellular concentrations of adenosine 3′:5′-monophosphate and of release of both LH and FSH. The stimulatory effect of LH-
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8. A Sex-Linked Gene Controlling the Onset of Sexual Maturity in Female and Male Platyfish (XIPHOPHORUS MACULATUS), Fecundity in Females and Adult Size in Males
A sex-linked gene, P, controls the onset of sexual maturity in the platyfish, Xiphophorus maculatus. The activity of this gene is correlated with the age and size at which the gonadotropic zone of the adenohypophysis differentiates and becomes physiologically active. Immature fish of all genotypes grow at the same rate; however, as adults, males with "early"