Allantois
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Desenvolvimento placentário em quatis: evolução filogenética em carnívoros? / Placental development in quati: phylogenetic evolution in carnivores?
The importance of preservation of brazilian wild species is based on knowledge of their distribution, behavior in the wild and in captivity, and the detailed description of their reproductive biology in order to perpetuate the specie. One of the main impacts of this study is the scientific details of the uterine environment versus the process of placentation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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2. Development placental in bovines obtained by natural gestation and by in vitro fertilization / Desenvolvimento placentário em bovinos obtidos por gestações naturais e por fecundação in vitro
The main goal of this study was to describe morphology and the early gestational development of 15 to 70 day-old bovine embryos obtained by natural mating and 35 day-old bovine embryos obtained by in vitro fertilization (IFV) technique. One hundred and forty-one concepts originated by natural mating and seven by IVF technique were used. All concepts were dis
Publicado em: 2005
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3. Microestructural, histochemistry, and inmunohistochemistry study of the llama´s placenta (Lama guanicoe glama) / Estudo micro-estrutural, histoquímico e imunoistoquímico da placenta de lhama (Lama guanicoe glama)
The placenta of the llama has been described like epitheliochorial, but existent researches dont study in depth microscopic aspects. In order to detail their ultrastructurals characteristics observations were made by light microscopy and scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Samples of nine uteruses between 28 to 36 w
Publicado em: 2005
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4. Bone morphogenetic protein 4 in the extraembryonic mesoderm is required for allantois development and the localization and survival of primordial germ cells in the mouse
Evidence suggests that the specification of primordial germ cells (PGCs) in the mammalian embryo does not depend on maternal determinants. Rather, previous genetic analysis in the mouse has shown that bone morphogenetic protein 4 (Bmp4) is required for the formation of both PGCs and allantois. Bmp4 is expressed in both the trophoblast-derived extraembryonic
The National Academy of Sciences.
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5. Blood-borne seeding by hematopoietic and endothelial precursors from the allantois
Until now the allantois has not been considered as a hematopoietic organ. Here we report experimental evidence demonstrating the in situ emergence of both hematopoietic and endothelial precursors in the avian allantoic bud. When the prevascularized allantoic bud from a quail embryo was grafted in the coelom of a chicken host, hematopoietic and endothelial ce
The National Academy of Sciences.
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6. The development of tooth germs on the chick chorio-allantois
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7. The Effect of Non-development of the Allantois as Illustrated by a case of Sympodia
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8. LEVELS OF CERTAIN FREE AMINO ACIDS OF CHORIO-ALLANTOIS DURING INFLUENZA VIRUS INFECTION1
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9. Culture on the Chick Chorio-allantois as a Test of Inactivation of Vaccinia Virus1
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10. A morphological study of the development of the allantois of rat embryos in vivo
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11. The chorio-allantois of the chick. Light and electron microscopic observations at various times of incubation
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12. Differences in sialic acid-galactose linkages in the chicken egg amnion and allantois influence human influenza virus receptor specificity and variant selection.
Human influenza viruses are more efficiently isolated by inoculating patient samples into the amniotic rather than the allantoic cavity of embryonated chicken eggs. This type of cultivation selects virus variants with mutations around the hemagglutinin (HA) receptor binding site. To understand the molecular basis of these phenomena, we investigated the abund