Human Embryo
Mostrando 1-12 de 606 artigos, teses e dissertações.
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1. Oocytes, embryos and pluripotent stem cells from a biomedical perspective
Abstract The veterinary and animal science professions are rapidly developing and their inherent and historical connection to agriculture is challenged by more biomedical and medical directions of research. While some consider this development as a risk of losing identity, it may also be seen as an opportunity for developing further and more sophisticated co
Anim. Reprod.. Publicado em: 28/11/2019
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2. Effect of hCG application at different moments of the estrous cycle on corpus luteum and uterine vascularization and serum progesterone concentration in mares
Abstract Establishment of pregnancy after embryo transfer is the ultimate goal of an embryo transfer program and increasing pregnancy rates and reducing pregnancy loss are mandatory. The utilization of treatments to improve conception rates in recipient mares has been the focus of several research groups over the last years and the results are controversial.
Anim. Reprod.. Publicado em: 25/11/2019
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3. Assessing the association between hypoxia during craniofacial development and oral clefts
Abstract Objectives To evaluate the association between hypoxia during embryo development and oral clefts in an animal model, and to evaluate the association between polymorphisms in the HIF-1A gene with oral clefts in human families. Material and Methods The study with the animal model used zebrafish embryos at 8 hours post-fertilization submitted to 30%
J. Appl. Oral Sci.. Publicado em: 21/05/2018
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4. Cytotoxicity and genotoxicity of coronaridine from Tabernaemontana catharinensis A.DC in a human laryngeal epithelial carcinoma cell line (Hep-2)
Cancer has become a major public health problem worldwide and the number of deaths due to this disease is increasing almost exponentially. In the constant search for new treatments, natural products of plant origin have provided a variety of new compounds to be explored as antitumor agents. Tabernaemontana catharinensis is a medicinal plant that produces alk
Genet. Mol. Biol.. Publicado em: 01/02/2013
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5. Novel insights into the genetic and epigenetic paternal contribution to the human embryo
The integrity of the sperm genome and epigenome are critical for normal embryonic development. The advent of assisted reproductive technology has led to an increased understanding of the role of sperm in fertilization and embryogenesis. During fertilization, the sperm transmits not only nuclear DNA to the oocyte but also activation factor, centrosomes, and a
Clinics. Publicado em: 2013
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6. O status ontológico e moral do embrião humano / The ontological and morals status of the human embryo
A presente dissertação é fruto de uma investigação filosófica, inserida na linha de pesquisa de Ética. Esse trabalho aprofunda uma discussão polêmica no contexto da Bioética, a saber: a manipulação de células embrionárias. Contudo, o autor não envereda seus esforços nas conse-quências éticas advindas das novas tecnologias produzidas pela En
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2012
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7. Trichomonas vaginalis and Tritrichomonas foetus: interaction with fibroblasts and muscle cells - new insights into parasite-mediated host cell cytotoxicity
Trichomonas vaginalis and Tritrichomonas foetus are parasitic, flagellated protists that inhabit the urogenital tract of humans and bovines, respectively. T. vaginalis causes the most prevalent non-viral sexually transmitted disease worldwide and has been associated with an increased risk for human immunodeficiency virus-1 infection in humans. Infections by
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-09
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8. Transmission of Campylobacter coli in chicken embryos
Campylobacter coli is an important species involved in human cases of enteritis, and chickens are carriers of the pathogen mainly in developing country. The current study aimed to evaluate the transmission of C. coli and its pathogenic effects in chicken embryos. Breeder hens were inoculated intra-esophageally with C. coli isolated from chickens, and their e
Brazilian Journal of Microbiology. Publicado em: 2012-06
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9. Da antropologia pragmática à antropologia bioética: o princípio da prudência-ponte dirimindo o reducionismo em bioética pertinente à vida humana no nível molecular
This thesis aims to demonstrate that there is a reductionism in bioethics and this comes out as one of three ways: a) topological; b) proximity; and c) life secularization. These three forms of reductionism hinder a definition of a moral status and also a prudential deal of the genetic materials and human embryos. Thus, there is a quickly advance of biotechn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/12/2011
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10. Proteção da vida humana embrionária e repercussão no campo jurídico e ambiental
O avanço da ciência, em especial na área da reprodução humana, permitiu a ocorrência de concepção humana de forma extracorpórea através do processo de fecundação in vitro a ser feita em laboratório especializado em reprodução humana assistida. Os embriões não implantados em útero materno são criopreservados. Este trabalho busca trazer os q
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/04/2011
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11. Aspectos bioéticos, constitucionais e civis da tutela do embrião humano e do direito fundamental ao patrimônio genético / Bioetics, constitutional and civil aspects of human embryo and the fundamental rigth of genetic heritage.
Bioethics arose from difficulties in reconciling the advances in biotechnology and the right to national scientific development with ethical values and human rights, entailing risks to human survival and endangering the destiny of humanity. One problem faced by the law in contemporary social change is accelerating, making it difficult to adjust rules satisfa
Publicado em: 2011
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12. Endocrinologia e controle da vitelogênese em carrapatos = Endocrinology and control of tick vitellogenesis / 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