BACKGROUND: Advances in cell culture media have led to a trend of embryo transfer from the early cleavage stages to blastocyst stage. OBJECTIVE: The study aims to compare the effects of fresh embryo transfer in cleavage and blastocyst stag…
BACKGROUND: The purpose of the current study was to evaluate the possible effect of follicular fluid paraoxonase 3 (PON 3) on oocyte quality and sex hormones. METHODS: This descriptive-analytical study was performed on totally 90 enrolled …
BACKGROUND: A high level of free radicals and oxidative substances in women with polycystic ovary syndrome (PCOS) can affect the ovaries through oxidative stress. Antioxidants such as selenium, a vital trace element in human health, can imp…
BACKGROUND: Although there has been remarkable advancement in the field of assisted reproductive technology, implantation failure remains a significant issue in most infertile couples receiving these treatments. Embryo transfer is important…
Objective: To assess the correlation between the levels of BPA in the serum and follicular fluid (FF) using oocyte morphology. Materials and methods: In this cross-sectional research, oocyte, FF, and serum samples were obtained from a sampl…
BACKGROUND: The purpose of this study was to determine the optimal endometrial preparation protocol by comparing the clinical outcome of two methods of endometrial preparation in frozen-thawed embryo transfer (FET) cycles, including that is…
BACKGROUND: Implantation is one of the essential steps for the success of assisted reproductive techniques (ART). Their success depends on three main factors: embryo quality, endometrial receptivity (ER), and synchrony between embryo and en…
BACKGROUND: Based on classical two-cell, two-gonadotropin theory, in the follicle, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) put on their main effects on the granulosa and theca cells. LH is essential for androgens pro…