BACKGROUND: Poor ovarian response remains one of the most challenging problems in assisted reproductive technology. Various stimulation protocols have been proposed to improve outcomes, including combined gonadotropin-releasing hormone (GnR…
BACKGROUND: Women with diminished ovarian reserve (DOR) respond differently to gonadotropin medications. OBJECTIVE: This study investigates the relationship between effective gene expression in the steroidogenesis pathway and gonadotropin …
BACKGROUND: Despite the extensive use of the gonadotropin-releasing hormone (GnRH) antagonist protocol in treating infertile women, particularly those with polycystic ovary syndrome (PCOS), there have not been sufficient evidence to compare…
BACKGROUND: Individualized assisted reproductive techniques (ART) can improve ART outcomes. Some studies suggested using insulin-like growth factor-1 (IGF-1) level on cycle day 2 for individualized ART. OBJECTIVE: To investigate the relati…
BACKGROUND: Luteal phase deficiency is common in assisted reproductive technology and is characterized by inadequate progesterone production. Various studies have shown that administration of progesterone in fresh embryo transfer cycles inc…
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…
BACKGROUND: Preparation of endometrial thickness in frozen-thawed embryo transfer (FET) is extremely important, particularly in repeated implantation failure (RIF) patients. OBJECTIVE: This study aimed to investigate the clinical outcomes …
BACKGROUND: The results of previous studies on the effect of low-dose aspirin in frozen-thawed embryo transfer (FET) cycles are limited and controversial. OBJECTIVE: To evaluate the effect of low-dose aspirin on the clinical pregnancy in t…
BACKGROUND: Over the years, many article on different aspects of pathogenesis and management of poor ovarian responders have been published but there is no clear guideline for treating themyet. OBJECTIVE: This study was designated to compa…
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: Embryo implantation process is a complex phenomenon and depends on fetal and maternal factors interaction. Endometrial thickness is needed for successful implantation. OBJECTIVE: We designed this study in order to assess adding…
BACKGROUND: There is no doubt that luteal phase support is essential to enhance the reproductive outcome in IVF cycles. In addition to progesterone and human chorionic gonadotropin, several studies have described GnRH agonists as luteal pha…
BACKGROUND: Poor ovarian response to controlled ovarian stimulation is one of the most important interest points in assisted reproduction. Mild ovarian stimulation seems to be preferable to high dose of FSH regimens in women with a history …
BACKGROUND: Despite extensive progress in IVF techniques, one of the most difficult problems is the variability in the response to controlled ovarian hyperstimulation (COH). Recent studies show the effects of individual genetic variability …
BACKGROUND: Endometrial receptivity is required for successful implantation and pregnancy. Despite the remaining controversy, many studies have shown that ultrasonographic endometrial thickness can be considered as an indicator of endometri…
BACKGROUND: Determination of oocyte fertilization and embryo quality are one of the most important purposes in ART cycles. Follicular fluid provides an important microenvironment for development of oocytes and some biochemical characteristi…