Human Embryo
Mostrando 13-24 de 606 artigos, teses e dissertações.
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13. Endocrinologia e controle de vitelogênese em carrapatos / Endocrinology and control of tick vitellogenesis
Background: Ticks are distributed worldwide, with impacts on human and animal health. The cattle tick Rhipicephalus (Boophilus) microplus is the main parasite that affects livestock in tropical and subtropical regions of the world, causing large economical losses. Tick control methods are based on the application of chemical acaricides, which has resulted in
Publicado em: 2011
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14. Pronounced segregation of donor mitochondria introduced by bovine Ooplasmic tranfer to the female germ-line.
Ooplasmic transfer (01) has been used in basic mouse research for studying lhe segregation of mtDNA, as well as in human assisted reproduction for improving embryo development in cases of persistent developmental failure. Using cattle as a large-animal model, we demonstrate that lhe moderate amount of mitochondria introduced by OT is transmitted to lhe offsp
Biology of Reproduction. Publicado em: 2011
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15. Efetividade da UtilizaÃÃo de Incubadoras de CO2 Equipadas com filtro Hepa e Filtro Hepa-Voc para Cultivo de EmbriÃes em Ciclos de FertilizaÃÃo in Vitro / Effectiveness of Using CO2 Incubators equipped with HEPA filters and HEPA-You for Cultivation of Embryos in IVF Cycles
Introduction and objectives. The air quality in sterile environment is an important aspect to cell culture. It is known the culture conditions are essential for in vitro human embryo development; however there is no standardization for incubator filters in in vitro fertilization (IVF) laboratories. Recently, the incubator air quality has been receiving atten
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2010
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16. Estudo do padrão de inativação do cromossomo X em tecido extra-embrionário humano / X-chromosome inactivation pattern in human extra-embryonic tissue
Imprinted inactivation of the paternal X chromosome in marsupials is the primordial mechanism of dosage compensation for X-linked genes between females and males in Therians. In Eutherian mammals, X chromosome inactivation (XCI) evolved into a random process in cells from the embryo proper, where either the maternal or paternal X can be inactivated. However,
Publicado em: 2010
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17. Políticas coercitivas da Operação Condor
The presente work aims the study of Operation Condor, which emerged in the 70s in Latin America. It was a Union between Brazil, Argentina, Uruguay, Paraguay, Bolivia and Chile, all under military rule. Conceived and led by Manuel Contreras, Chilean general charge of the Intelligence Service of his country, it was an improvement on existing cooperation to exc
Publicado em: 2010
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18. Rating parasitological contamination and seasonal sand in public parks region of the eastern city of Sao Paulo / Avaliação parasitológica e contaminação sazonal nas areias de parques públicos na região da zona leste da cidade de São Paulo
Introduction - In recent decades, have been recurrent in the national and international scientific literature, the finding of contamination of public places open to the community by parasites with zoonotic potential and spreaders of human infections. The geohelminths are parasites that can infect humans, however, to allow for the embryo and thus become infec
Publicado em: 2010
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19. RegeneraÃÃo "in vitro", estudos histolÃgicos e transformaÃÃo genÃtica da momoneira (Ricinus communis) / "In vitro" regeneration, histologycal studies and genetic transformation of castor-bean (Ricinus communis)
Castor bean (Ricinus communis) is an oilseed crop with considerable economic value because of the composition of its oil seed. However, there are some constraints in your use for human and animal food because of the presence of toxic and allergenic proteins. This problem could be solved or reduced through genetic engineering. However, this crop is recalcitra
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/02/2009
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20. Molecular cloning and expression analysis of a zebrafish novel zinc finger protein gene rnf141
ZNF230 is a novel zinc finger gene cloned by our laboratory. In order to understand the potential functions of this gene in vertebrate development, we cloned the zebrafish orthologue of human ZNF230, named rnf141. The cDNA fragment of rnf141 was obtained by rapid amplification of cDNA ends (RACE). The open reading frame (ORF) encodes a polypeptide of 222 ami
Genetics and Molecular Biology. Publicado em: 10/07/2009
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21. Ativação de genes apoptóticos no bloqueio do desenvolvimento em embriões bovinos / Activation of apoptotic genes at developmental block in bovine embryo development
Maternal-zygotic transition is a complex phenomenon characterized by the initiation of transcription in the embryo and the transition of maternal mRNA with embryonic mRNA. It is believed that the mRNAs and proteins synthethized by the oocyte during its growth and final maturation allow the zygote to develop during the early stages of embryo development up to
Publicado em: 2009
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22. Análise ético-constitucional da utilização de embriões humanos em experimentos científicos.
This work aims to carry out an analysis ethics and legal about the constitutionality of the use of human embryos produced in vitro in scientific experiments. The doctrine about the subject is scarce and it appears quite divided. For someone there would not be any ethical or legal problem in the use of human embryos in such experiments although these would no
Publicado em: 2009
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23. Análise da variação da concentração de amônia, dos aminoácidos alanina e glutamina e do dipeptídeo alanil-glutamina no meio de cultura de embriões humanos e os efeitos na reprodução assistida / Analysis of the variation of the concentrations of ammonium, alanine, glutamine, and alanyl-glutamine in culture medium of human embryos and the effects on assisted reproduction / Analysis of the variation of the concentrations of ammonium, alanine, glutamine, and alanyl-glutamine in culture medium of human embryos and the effects on assisted reproduction / Análise da variação da concentração de amônia, dos aminoácidos alanina e glutamina e do dipeptídeo alanil-glutamina no meio de cultura de embriões humanos e os efeitos na reprodução assistida
Objective: to verify the relations between culture media concentrations of ammonia, alanine, glutamine, and alanyl-glutamine and embryo quality, pregnancy, and type of hormonal stimulation. Methods: a prospective case-control study was carried out including 62 embryos from 20 women submitted to assisted reproduction at the Sao Paulo Federal University. Inclu
Publicado em: 2009
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24. A proteção do direito fundamental à vida e as pesquisas com células-tronco embrionárias humanas no ordenamento jurídico brasileiro / The protection of the fundamental right to life and the human embryo-based stem cell research in the Brazilian law
A dissertação trata do debate acerca do início da proteção do direito à vida e as consequências dessa proteção em relação às pesquisas com células-tronco embrionárias humanas, autorizadas no ordenamento jurídico brasileiro pelo artigo 5º, da Lei nº 11.105/2005, julgada constitucional pelo Supremo Tribunal Federal em sede de controle concentr
Publicado em: 2009