Ontogenic
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. An ontogenic study of the behavioral effects of chronic intermittent exposure to ayahuasca in mice
Ayahuasca is a beverage obtained from decoctions of the Banisteriopsis caapi plus Psychotria viridis. In religious contexts, ayahuasca is used by different age groups. However, little is known of the effects of ayahuasca during ontogenic development, particularly with regard to the functional characteristics of the central nervous system. Animal models are u
Braz J Med Biol Res. Publicado em: 05/06/2017
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2. Ontogenic development of kidney, thymus and spleen and phenotypic expression of CD3 and CD4 receptors on the lymphocytes of cobia (Rachycentroncanadum )
RESUMO No presente estudo foi realizada uma análise ontogenética dos órgãos imunocompetentes do bijupirá até 53 dia após a eclosão (dae) com técnicas histológica e imunohistoquímica. O rim foi o primeiro órgão linfohematopoiético a aparecer, ao 1 dae, seguido pelo baço aos 5 dae e pelo timo aos 7 dae. Os primeiros receptores CD3 em linfócitos
An. Acad. Bras. Ciênc.. Publicado em: 27/11/2015
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3. Ontogenetic development charactherization of Steindachneridion melanodermatum (Garavello, 2005) (pisces, siluriformes) from the river IguaÃu basin, Brazil / CaracterizaÃÃo do desenvolvimento ontogenÃtico de Steindachneridion melanodermatum (Garavello, 2005) (pisces, siluriformes) da Bacia do Rio IguaÃu, Brasil
A espÃcie Steindachneridion melanodermatum à um peixe endÃmico a bacia do rio IguaÃu que apresenta um grande potencial para a piscicultura, porÃm seu desenvolvimento inicial ainda à pouco conhecido, o que limita os progressos no cultivo desta espÃcie. Dessa forma, o presente estudo teve como objetivo caracterizar o desenvolvimento ontogenÃtico do Sur
Publicado em: 2010
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4. Caracterização cinética da (Na+, K+)-ATPase de animais juvenis e adultos durante a ontogenia do camarão de água doce M. amazonicum / Kinetic characterization of (Na +, K +)-ATPase of juvenile and adult animals during ontogeny of the freshwater shrimp M. amazonicum.
In the present work the kinetic characterization and biochemical properties of the (Na+, K+)-ATPase gill in ontogenetic stages of juvenile and adult freshwater prawn M. amazonicum was studied. In both stages of development the (Na+, K+)-ATPase was expressed as a molecular weight of 105 kDa. The stimulation of activity (Na+, K+)-ATPase by ATP in adult animals
Publicado em: 2010
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5. Ontogenic events and swimming behavior of larvae of the characid fish Salminus brasiliensis (Cuvier) (Characiformes, Characidae) under laboratory conditions
The larval ontogeny and swimming behavior of the characid fish Salminus brasiliensis (Cuvier, 1816) were studied under experimental laboratory conditions, from hatching to yolk absorption. At day 1, the larvae were transparent, with sparse dendrite chromatophores and a well-developed adhesive organ on the head. The retinal epithelial cells were initiating pi
Revista Brasileira de Zoologia. Publicado em: 2002-03
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6. Desenvolvimento larval inicial de Helostoma temminckii Cuvier & Valenciennes (Helostomatidae, Perciformes)
This work presents the characterization of larval external morphology of the kissing gourami Helostoma temminckii, an aquarium fish of the family Helostomatidae, reared all over the world. A total of 38 larvae (standard length between 3.2 and 10.1 mm), obtained through natural reproduction carried out in the Fish Culture Station of the Federal Rural Universi
Revista Brasileira de Zoologia. Publicado em: 2000-09
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7. Membrane differentiation in human erythroid cells: Unique profiles of cell surface glycoproteins expressed in erythroblasts in vitro from three ontogenic stages
Human erythroblasts in culture, irrespective of the ontogenic stage of their progenitors, are characterized by: (i) the barely detectable amount of band 3 glycoprotein, (ii) the presence of two glycoproteins with molecular weights 105,000 and 95,000, (iii) the high concentration of glycophorin, and (iv) a minimum quantity of the carbohydrate chain susceptibl
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8. Establishment of zygomorphy on an ontogenic spiral and evolution of perianth in the tribe Delphinieae (Ranunculaceae)
Oxford University Press.
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9. Soluble factor(s) produced by adult bone marrow stroma inhibit in vitro proliferation and differentiation of fetal liver BFU-E by inducing apoptosis.
Hematopoiesis occurs in different organs during fetal development. Several studies suggest that the growth of hematopoietic progenitors at one stage of ontogenic maturation may not be supported by a microenvironment from a different ontogenic stage. To determine if human fetal liver (FL) clonogenic progenitors can develop in an adult bone marrow (ABM) microe
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10. Ontogenic development of contrasuppression.
Using a xenogeneic graft-versus-host assay system, we have been able to document the sequential appearance of certain regulatory cells in newborn mice. Before birth, mouse spleen cells exhibit potent suppression that cannot be ameliorated by contrasuppressor cells. On the day of birth, the spleens contain equally potent suppressor cells, but these cells now
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11. Investigations of the simian ontogenic switch from fetal to adult hemoglobin at the progenitor cell level.
The ontogenic switch from fetal to adult hemoglobin could result from discontinuous events, such as replacement of fetal erythroid progenitor cells by adult ones, or gradual modulation of the hemoglobin program of a single progenitor cell pool. The former would result in progenitors at midswitch with skewed fractional beta-globin synthesis programs, the latt
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12. Ontogeny of macrophage function to release superoxide anion in conventional and germfree mice.
To determine whether the presence of bacterial flora contributes to the ontogenic development of macrophage function, the ability of macrophages to release superoxide anion (O2-) in response to stimulation with phorbol myristate acetate was compared in conventional and germfree mice of various ages after birth. One-week-old conventional mice showed a very lo