BACKGROUND The objective of this retrospective cohort study was to evaluate whether the length of pituitary blockage with gonadotrophin-releasing hormone (GnRH) antagonists or the stimulation period influence intracytoplasmic sperm injection (ICSI) outcomes in patients older than 36 years of age. MATERIALS AND METHODS In this retrospective study, a total of 138 couples with maternal age >36 y...

OBJECTIVE To evaluate the safety and technical success rate of an ultrasound-guided fiducial marker implantation in preparation for CyberKnife radiation therapy. MATERIALS AND METHODS We retrospectively reviewed 270 percutaneous ultrasound-guided fiducial marker implantations in 77 patients, which were performed from June 2008 through March 2011. Of 270 implantations, 104 were implanted in me...

background: integrins are heterodimeric glycoprotein receptors that regulate the interaction of cells with extracellular matrix and may have a critical role in implantation. the aim of this study was to investigate the effect of ovulation induction on the expression of α4, αv, β1, and β3 integrins in mouse blastocyst at the time of implantation. methods: the ovarian stimulated and non-stimulate...

background: implantation failure is the most important cause of recurrent in vitro fertilization/intra cytoplasmic sperm injection (ivf/icsi) failure. several reports suggest that intercourse during the peritransfer period might improve pregnancy rates. this study is designed to determine whether intercourse during the peritransfer period will improve pregnancy and implantation rates in patient...

OBJECTIVE To evaluate the outcomes of patients with moderate oligoasthenozoospermia treated with conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). METHODS A total of 99 couples with moderate oligoasthenozoospermia undergoing their first IVF/ICSI cycle were included in the study. Sibling oocytes were randomized to be inseminated either by conventional IVF o...

To analyze mutation in tomato genomic DNA by RAPD technology, certain factors influencing RAPD amplification, such as, DNA template, Taq DNA polymerase, Mg, dNTPs and primer, were studied to optimize RAPD amplification reaction system. RAPD amplification of tomato genomic DNA after low energy ion implantation along with soybean DNA was successfully performed. Compared to the control, genomic DN...

Knowledge of the rate of development of immature cardiomyocytes after implantation into a host heart is important for studies using cell therapy. To assess this functionally, we have implanted rat neonatal cardiomyocytes (NCMs) in normal and infarcted rat heart and re-isolated them for functional assessment. Maturation of implanted bone marrow stromal cells (BMSCs) was compared under similar co...

In this study, we compared the fertilization rate and embryo quality after intracytoplasmic sperm injection (ICSI) as they relate to oocyte morphology. A total of 654 ICSI cycles yielding 5903 metaphase II oocytes were observed. The oocytes retrieved in these cycles were divided into (i) normal oocytes, (ii) oocytes with extracytoplasmic abnormalities (dark zona pellucida and large perivitellin...

Background: The objective of this study is to evaluate whether low-dose aspirin affects doppler sonographic parameters of the uterine arteries, endometrial thickness and pregnancy rate of women undergoing frozen-thawed embryo transfer cycles. Materials and Methods: This randomized, double- blind, placebo-controlled trial study was conducted between April 2012, and March 2013. A total of 60 elig...