نتایج جستجو برای: fertilization and development potentials
تعداد نتایج: 17035742 فیلتر نتایج به سال:
Background and purpose: Diabetes is one of the major factors that affects fertility and ovulation and can disrupt the formation of fetus. Omega-3 polyunsaturated fatty acids might be able to improve the quality of the embryo in maturation of oocytes. The aim of this study was to investigate the effects of omega-3 on ovarian tissue and the development of blastocysts in diabetic rats. Material...
Mouse embryo development following IVF in media containing either L-glutamine or glycyl-L-glutamine.
BACKGROUND The development of the mouse zygote following fertilization in vitro in a KSOM-type medium containing either L-glutamine or glycyl-L-glutamine has been examined, and compared with the development of mouse zygotes produced by natural fertilization. METHODS Mouse IVF, embryo culture and embryo transfer. RESULTS Fertilization rates, development to the blastocyst stage, implantation ...
Background: This study examined the effect of including one of two growth factors (100 ng/ml IGF-1 or 20 ng/ ml EGF) in combination with one of two antioxidants (50 μM cysteamine or 50 μM beta-mercaptoethanol) in invitro maturation of buffalo oocytes, followed by fertilization and subsequent development of embryos. Materials and Methods: The oocytes were recovered by in vivo ovum pick-up techni...
The sea urchin fertilization envelope is an extracellular matrix assembled at fertilization to prevent polyspermy and protect the embryo during early development. During hatching, the embryo secretes a proteolytic hatching enzyme which dissolves the fertilization envelope, allowing a ciliated blastula to swim free. In this study we examined ultrastructural changes in the fertilization envelope ...
Background and purpose: Stress is one of the decisive factors in infertility, which can interfere with spermatogenesis and reduce spermatozoa. Considering the immobilization stress-induced infertility disorders, this study aimed at examining the protective effect of selenium yeast cell wall (as an antioxidant) on in vitro fertilizing ability following immobilization stress in adult male rats. ...
There is strong trend, in current research on communication and sensor networks, to study selforganizing, self-healing systems. This poses great challenges to the research on decentralized systems, but at the same offers great potentials for future developments, especially in view of the current trend towards miniaturized systems. Even if the development of self-organizing systems is probably a...
Background & Objective: Busulfan (BSF) besides the therapeutic effects, performs oxidative stress and decreasing fertilizing capacity. Therefore, the present study was aimed to evaluate the protective effects of Crocin, on in vitro fertilization (IVF) process in busolfan treated mice. Materials & Methods: In this study eighteen mature female mice (25g), were divided into 6 groups and treated fo...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
testing plays a vital role in any language teaching program. it allows teachers and stakeholders, including program administrators, parents, admissions officers and prospective employers to be assured that the learners are progressing according to an accepted standard (douglas, 2010). the problems currently facing language testers have both practical and theoretical implications but the first i...
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