in vitro maturation (ivm) was carried out in the presence of different concentrations (10, 50, 100 or 200 µm) of α-linolenic acid (ala). embryonic cleavage, blastocyst formation following parthenogenetic activation (pa) and in vitro fertilization (ivf), and numbers of total and apoptotic cells in blastocyst were then determine for the 50 μm concentration and compared with the control group. out...

Birth of babies through in vitro fertilization procedures has Tenewed interest by clinicians as well as laymen in the phenomenon of fertilizatien. In most medical text books, fertilization is treated very lightly giving students the impressien that fertilization is a simple mechanical penetration of a spermatozoon into an egg. This is far frorn the truth. Fertilization comprises ・a series of co...

The aim of this study was to compare the effect of the addition of follicular fluid (FF) collected from preovulatory follicles with that of oestrous mare serum (EMS) (acting as the control) to TCM-199 medium on the in-vitro maturation, fertilization and development of equine cumulus-enclosed oocytes. Oocytes (<30 mm in diameter) were obtained from the ovaries of slaughtered mares. After in-vitr...

conclusions the present study showed that vitrification using cryotop and freezing medium can damage oocytes by reducing the maturation and fertilization rates in both developmental stages. results vitrification caused a significant reduction in the maturation rate of oocytes. of those that matured, the fertilization rate of vitrified ivm-mii (44.1%) and ov-mii oocytes (50%) was not significant...

The aim of this study was to assess the effects of melatonin on the in vitro maturation and fertilization of sheep oocytes, and on the in vitro culture of the embryos. Oocytes from sheep ovaries collected at the slaughterhouse were divided into four groups, two of which were treated with either 10 M (M5) or 10 M (M6) melatonin, while the other two groups served as untreated controls (C5 and C6)...

_______________________________________________________________________________________ Abstract Vitrification may alter the cytoskeleton (microtubule, meiotic spindle, microfilament, etc.) and the subsequent fertilization rate of in vitro derived bovine oocytes. This study was conducted to evaluate the effect of vitrification and post-thawing incubation periods on the cytoskeleton and fertiliz...

background: we performed this study to evaluate use of fresh and frozen sperm samples in non-obstructive azoospermia microdissection testicular sperm extraction (micro-tese-icsi) treatment. methods: we performed a total of 82 consecutive in vitro fertilization (ivf) cycles at fertijin ivf center in istanbul, turkey from january 2010 to march 2012. in 43 participants we used fresh sperm and froz...

background: the direct effect of hcg on the human endometrium was studied several times. objective: the objectives of this study were to evaluate the effectiveness of intrauterine injection of recombinant human chorionic gonadotropin (rhcg) before embryo transfer (et). materials and methods: in this randomized placebo-controlled clinical trial, a total number of 182 infertile patients undergoin...

STUDY QUESTION Is venous thrombosis risk increased in pregnancies after in vitro fertilization? SUMMARY ANSWER The venous thrombosis incidence was significantly increased in pregnancies after in vitro fertilization; especially in the first trimester and in the first 6 weeks post-partum. WHAT IS KNOWN ALREADY In vitro fertilization without pregnancy is not associated with increased venous th...