background: the purpose of present study was to evaluate the role of pre-ovulatory gnrh agonist therapy on ivf outcomes in gnrh antagonist cycles. methods: in this prospective study we recruited 100 infertile women undergoing ivf cycles with gnrh antagonists. the patients were assigned to two groups: group a (the study group, n=42) were assigned for receiving hcg+triptorelin for the final oocyt...

background: our previous studies revealed anethum graveolens l. caused some changes in female reproductive system that induced infertility. therefore, in this study, oocyte changes as one of probable reasons of infertility were investigated.    methods: in this study, 59 adult female rats were divided into 3 groups of control, low dose (0.5 g/kg) and high dose (5 g/kg) of dill seed aqueous extr...

a:4:{s:9:"Objective";s:378:"Among the young generation, medical and law students’ attitude towards third party reproduction is very important because they will be directly involved in restricting or developing the programs that will support it in the future. The aim of this survey was to investigate attitude of law and medical students to oocyte donation and key aspects of this kind of third pa...

Over the last several decades, a number of therapies have been developed that manipulate ovarian follicle growth to improve oocyte quality and conception rates in cattle. Various strategies have been proposed to improve the responses to reproductive biotechnologies following timed artificial insemination (TAI), superovulation (SOV) or ovum pickup (OPU) programmes. During TAI protocols, final fo...

OBJECTIVE To investigate the oocyte quality in patients with severe ovarian hyperstimulation syndrome (OHSS). DESIGN Self-controlled clinical study. SETTING University teaching hospital. PATIENT(S) Twenty-two patients from our assisted reproductive technology (ART) program who developed severe OHSS during their first controlled ovarian hyperstimulation for IVF or intracytoplasmic sperm in...

Background: Recent animal studies demonstrated that regulating the microRNA (miRNA) in granulosa cells (GCs) modulates the meiotic competence of oocytes. However, the difference in expression profiles of miRNAs in human GCs according to the maturity of the oocyte still remains to be elucidated. Objective: This observational study investigated whether the miRNA profile of human GCs differs accor...

BACKGROUND Our aim was to evaluate whether extending the interval between human chorionic gonadotrophin (hCG) priming and immature oocyte retrieval increases the oocyte maturation rate following in vitro maturation (IVM). METHODS This study was performed retrospectively. IVM was performed on 113 polycystic ovary syndrome patients (n = 120 cycles). Oocyte collection was performed either 35 h (...

OBJECTIVE To review historical and contemporary advances in oocyte-cryopreservation techniques and outcomes. DESIGN Publications related to oocyte cryopreservation were identified through MEDLINE and other bibliographic databases. CONCLUSION(S) Oocyte cryopreservation can be used as an adjunct to conventional IVF and as an option for fertile women to electively cryopreserve their gametes. R...