OBJECTIVE The effects of exposure to electromagnetic fields (EMF) on reproduction systems have been widely debated. In this study, we aimed to investigate whether low frequency EMF could ameliorate the in vitro fertilization success rate in Naval medical research institute (NMRI) Mice. MATERIALS AND METHODS In this randomized comparative animal study, ten NMRI mice were randomly divided into ...

Background: Previous studies have reported the antifertility activities of sulfonamides. This study was designed to evaluate the effects of co-trimoxazole and its co-administration with folic acid on ovarian tissue in female rats.Methods: A total of 54 rats were randomly divided into 9 groups (n=6). Group I served as the control and group II (vehicle) received saline. Other groups, III to IX, r...

Objective In vitro maturation (IVM) is an artificial reproductive technology in which immature oocytes are harvested from the ovaries and subsequently matured in vitro. IVM does not require ovarian hyperstimulation and thus the risk of ovarian hyperstimulation syndrome (OHSS) is avoided. In this multicenter prospective cohort study we assessed the live birth rate per initiated in vitro maturati...

ObjectiveTo determine whether the ooplasm granulation patterns of donor oocytes, like those oocytes from poor-prognosis patients, are predictive in vitro fertilization (IVF) outcomes.DesignRetrospective cohort study.SettingAcademically affiliated private clinical infertility and research center.Patient(s)770 fresh 381 vitrified-thawed metaphase II young donors (aged 21.0–34.6 years) used for IV...

Background In vitro maturation (IVM) of human oocytes has acquired increasing attention in infertility treatment with great promise. This technique is an alternative conventional in vitro fertilization-embryo transfer (IVF-ET), and can be reduced the side effects of gonadotropin stimulation such as ovarian hyperstimulation (OHSS). Oocyte maturation is a complex process including cytoplasmic and...

A traditional karyomorphological approach was carried out in order to investigate the cytotaxonomic relationships among species of Santolina chamaecyparissus complex. All 14 included this complex were analysed for a total 39 populations. Metaphase plates obtained by squashing root tips stained with Feulgen technique. Measurable metaphase available literature also re-analysed. Chromosome number ...

The production of haploid gametes is essential for sexual reproduction in most eukaryotes. To achieve this haploid production, germline cells enter a specialized cell cycle called meiosis, in which two consecutive chromosome segregation events create gametes with half the number of chromosomes of diploid cells. Sister chromatids are held together by cohesins along the length of their arms and a...

The nearly perfect synchrony of nuclear division in a plasmodium of Physarum polycephalum provides a powerful system to analyze topoisomerase II cleavage sites in the course of the cell cycle. The histone H4 locus, whose schedule of replication and transcription is precisely known, was chosen for this analysis. Drug-induced topoisomerase II sites are clustered downstream of the histone H4 gene ...