نتایج جستجو برای: 2 cell embryos
تعداد نتایج: 3861834 فیلتر نتایج به سال:
Over the years it has been an important goal to optimize the treatment of subfertility in order to obtain a better pregnancy rate and baby-take-home rate, usually combined with the goal of decreasing the rate of multiplet pregnancies. This implies optimizing the development of embryos through improved in vitro culture methods. And it also implies optimizing the methods of selection of embryos f...
Herein we describe the synthesis of five new 2-aryl and 2-alkylimidazolone derivatives via an effective one-pot synthetic strategy assisted by microwave irradiations which allowed us to access desired product in a reduced time reaction compared thermal heating slightly better yield (48% 45%). The imidazolone were evaluated for their anticancer activity vitro against MCF-7, MDA-MB-231 HepG2 cell...
It is generally accepted that maternal heat stress during early pregnancy reduces fertility in mammalian species. Preimplantation embryos are sensitive to heat stress, and acute elevation of temperature causes a decrease of embryonic viability and subsequent development rate to the blastocyst stage in mouse (Arechiga et al., 1998). In dairy cows, high ambient temperatures around the time of ins...
Introduction: Women with poorly controlled insulin-dependent diabetes mellitus (IDDM) have a much higher incidence of early pregnancy complications, these include spontaneous miscarriages, early growth delay, and congenital malformations. Most of the investigations have been devoted to the early post implantation and organogenesis period of pregnancy. In this research we studied the hyperglycem...
l(2)dtl (lethal (2) denticleless), is an embryonic lethal homozygous mutation initially identified in Drosophila melanogaster that produces embryos that lack ventral denticle belts. In addition to nucleotide sequence, bioinformatic analysis has revealed a conservation of critical functional motifs among the human L2DTL, mouse L2dtl, and Drosophila l(2)dtl proteins. The function of the L2DTL pro...
Mitochondria are cellular organelles regulating metabolism and cell death pathways. This study examined changes in mitochondrial membrane potential (deltapsim) throughout the stages of preimplantation development in mouse embryos conceived either in vivo or in vitro and human embryos donated to research from IVF. Embryos stained with the deltapsim-sensitive dye (JC-1) were quantified for the ra...
Background and purpose: Herbal medicine have always been used in Iran and other countries around the world. They have different effects on human body, some are beneficial and others could be detrimental. There are few studies that investigated the effect of turmeric (Curcuma Longa) on female reproduction. This study examined the effect of turmeric extract on in vitro maturation of mice’s ...
The efficacy of various culture systems was studied for the development of in-vitro produced Caprine embryos . For this purpose, 2 to 4 cell stage caprine embryos matured and fertilized under in vitro conditions were cultured with four culture systems (cumulus cell monolayers, oviductal cell monolayers, chick embryo and rabbit peritoneal fluid) and a control system (TCM-199 + FCS) for about 5 d...
Background: Salen metal complexes are used successfully in a wide range of asymmet-ric reactions and important in the pharmaceutical and industry. On the toxicity of salen vanadium oxide (VOsalen) on embryo and cell cultures, little information is available. In the present study, the toxic and teratogenic effects of VOsalen was evaluated against chicken embryos as a animal model and liver and f...
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