Frozen Embryos
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. LIMITES ÉTICO-JURÍDICOS DAS PESQUISAS COM CÉLULAS-TRONCO EMBRIONÁRIAS: a histórica decisão do STF no atual Estado Democrático de Direito brasileiro / ETHICAL AND LEGAL LIMITS OF RESEARCH ON STEM CELLS EMBRYONIC: the historic Supreme Court decision in the current Democratic State Brazilian Law
A review the decision of the Supreme Court ruled as a constitutional law 11.105/05 (Biosafety Law) concerning the possibility of using embryonic stem cells for scientific research derived from the manipulation of frozen embryos more than three years or impractical for human reproduction. The decision became historic because it can generate the 1st public hea
Publicado em: 2010
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2. Effect of different percoll procedures on sperm quality and in vitro production of bovine embryos / Efeito de diferentes protocolos de Percoll na qualidade espermática e na produção in vitro de embriões bovinos
Techniques for sperm selection are usually used for bovine in vitro embryo production (IVP) to improve semen quality after thawing. Among these techniques Percoll gradient has been the most used. The aim of this study was to evaluate the effect of different volumes of Percoll, time and force of centrifugation on sperm quality, embryo development and sex of I
Publicado em: 2009
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3. Produção in vivo e transferência de embriões F1 em rebanhos leiteiros, utilizando-se cruzamento recíproco entre as raças Holandês e Gir, em duas épocas do ano.
It was evaluated embryo production from reciprocal matting of Holstein and Gyr breeds, and the use of crossbreed recipients, in summer or winter. Holstein (7 in each season), and Gyr females (7 in summer and 5 in winter) were superovulated. Embryos (grade 1 and 2), were frozen for further in vitro culture or inovulation. The recipients (49 cyclic or noncycli
Publicado em: 2008
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4. As Tecnologias da reprodução: discursos sobre maternidade e paternidade no campo da reprodução assistida no Brasil
Assisted reproduction has made possible the beginning of the reproductive process outside the human body. The manipulation and circulation of embryos, eggs, sperm, and uterus displacement with the so called gestacional surrogacy have led to new social experiences. This work investigates the discourses of the main social actors involved in the issues raised b
Publicado em: 2008
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5. Transferência intratubárica videolaparoscópica de embriões ovinos fertilizados in vitro / Embryo transfer in oviduc of ovine in vitro fertilized by laparoscopy
The development of the technique of embryo transfer in oviduct through video-assisted laparoscopy and the demonstration of productive association between laparoscopic follicle aspiration (LOPU) and embryonic transfer laparoscopy and / or open surgery (video-assisted laparotomy)both in oviduct was the goal of the work. From the 53 animals used in the study, f
Publicado em: 2007
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6. Criopreservação oocitária: desempenho reprodutivo na fertilização assistida.
The advance of in vitro fertilization (IVF) caused the emergence of a few dilemmas that forcibly led to deep reflections, standing out among these the questioning about the destination of excess embryos originated from this technology. In view of the controversy observed in several cultures as to ethic, moral, religious, political and scientific issues relat
Publicado em: 2006
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7. Acendendo as luzes da ciência para iluminar o caminho do progresso: ensaio de antropologia simétrica da lei de biossegurança brasileira
. ABSTRACT This dissertation takes as the object of a documental ethnography the legislative appreciation of the Brazilian Biosafety Bill, between October 2003, and March 2005. The construction of this Bill of Law, responsible for regulating research and trade of genetically modified organisms (GMOs), as well as the use of frozen embryos as raw material for
Publicado em: 2006
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8. Development in vitro of embryos of domestic cats, in medium modified TCM 199, fresh and previously frozen / Desenvolvimento in vitro de embriões de gatas domésticas, em meio TCM 199 modificado, frescos e previamente congelados
In this study a total of 48 embryos were used in the compacts morulae, initial blastocysts and blastocysts stages in the degrees I and II, obtained from 14 adult domestic cats. Two animals presented natural manifestation of the oestrus and 12 animals were artificially induced to ovarian activity and ovulation. They received one only application of 150 IU of
Publicado em: 2005
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9. Woman seeks approval to use frozen embryos
BMJ Publishing Group Ltd..
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10. Women lose legal fight to use their frozen embryos
BMJ Publishing Group Ltd..
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11. Maintenance of genetic integrity in frozen and freeze-dried mouse spermatozoa
Chromosome stability was maintained in mouse spermatozoa after freeze-drying or freezing without cryoprotection in a simple Tris⋅HCl buffer containing EGTA (50 mM) and NaCl (50 mM). The ability of spermatozoa to activate oocytes spontaneously was not destroyed by freeze-drying or freezing without cryoprotection in this solution. Embryos derived after injec
The National Academy of Sciences.
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12. Effects of Cryogenic Treatment on Plantlet Production from Frozen and Unfrozen Date Palm Callus
Embryogenic date palm (Phoenix dactylifera L. var. Medjool) callus cultures were treated with a cryoprotective mixture of polyethylene glycol (Carbowax 6000), glucose, and dimethylsulfoxide (10%/8%/10%, w/v); treated with the mixture, frozen to −196°C, and then thawed; or left untreated. Growth subsequent to treatment was measured as fresh weight increase