نتایج جستجو برای: fertilization and development potentials
تعداد نتایج: 17035742 فیلتر نتایج به سال:
Background and purpose: This study aimed at evaluating the effects of different doses of Licorice extract on in vitro maturation (IVM) and in vitro fertilization (IVF). Materials and methods: In this study 32 female adult mice were randomly assigned into four groups. Group I was the control, group II were estradiol valerate-induced PCOS mice (0.2cc), and groups III and IV were induced PCOS t...
Background & Aims: One of the most common causes of infertility in women is ovarian causes, especially polycystic ovary syndrome (PCOS). However, in patient with PCOS, the number of oocytes taken increased during the IVF, but these oocytes have often low quality, which ultimately leads to reduce fertilization potential. The aim of this research was investigation of PCOS on oocytes quality and p...
Purpose: The aim of this study to investigate the effect of progestrone and calcium ionophore (A23187) on mouse sperm parameters and fertilization rate. Materials and Methods: Csauda epididymidis were then obtained from NMRI male mice (10-12 wk old) and were divided to three groups: Control, adding progesterone (10µg/ml) and addingionophore (10mM) After sperm were prepared and incuhated in T6 ...
the objective of this work was to study the effects of tillage and liquid manure applications on some physical and chemical properties as well as on the carbon and nitrogen mineralization potential of a meadow soil. our results indicated that tillage and manure applications had no effect on the concentration of cu, mn, total n and organic c in 0-15 cm layer of soil after 15 years of treatment. ...
introduction: to evaluate the effect of electroactivation on fertilization and embryo development up to 8-cell stage, after intracytoplasmic injection of severely amorphous sperm. material and methods: oocytes (168) from 13 patients with severe- teratospermia undergoing icsi were divided into control (83) and electro activation (85) groups. in the latter group, oocytes were electrically activat...
Semperflorens begonia (Begonia semperflorens) is an ornamental house-plant which for its optimal growth and development needs a proper nutrition. Currently, cyanobacteria are sought after by plant growers as a growth bio-stimulant. Spirulina (Spirulina platensis) is an important cyanobacterium which has a vast range of nutritional organic and inorganic substances. This green-blue algae could be...
Intracytoplasmic sperm injection (ICSI) is the latest, and by far the most efficient, variant of micromanipulation-assisted fertilization, whereby a single spermatozoon is selected, aspirated into a microinjection needle and injected to the oocyte cytoplasm. The development of this technique is mainly linked to application in human assisted reproduction for which it enables fertilization with d...
Production of high quality embryos in vitro needs an efficient in vitro fertilization (IVF). Seminal origin is one of the important factors that affects the success of in vitro embryo production. So our goal was to determine the effect of using fresh and frozen semen in fertilization on developmental competence and cryo-survival of buffalo embryos. Buffalo oocytes wer...
It is well established that in addition to generating the diploid state in the zygote, the sperm also endows the oocyte with paternal centrioles, proteins and RNAs. Although the exact roles of mRNA introduced into the oocyte by the sperm are not completely understood. However, literature background, suggested that RNAs may have a vital role in embryo cleavage and further development. Therefore,...
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