Efstratios M. Κolibianakis

Studies in animals have shown that androgens promote early follicular development and granulosa cell proliferation by augmenting follicle-stimulating hormone (FSH) receptor expression in granulosa cells. Inconsistency exists regarding the a…

STUDY QUESTION: Is the probability of pregnancy different between women using biosimilars versus the originator of follitropin alfa for ovarian stimulation in ART? SUMMARY ANSWER: Meta-analysis of eight randomized clinical trials (RCTs) su…

Uterine fibroids are the most common benign tumours in the reproductive system. They are proliferations of smooth muscle cells of the myometrium containing a large quantity of extracellular matrix and they are surrounded by a pseudo capsule…

STUDY QUESTION: Is it possible to define a set of performance indicators (PIs) for clinical work in ART, which can create competency profiles for clinicians and for specific clinical process steps? SUMMARY ANSWER: The current paper recomme…

Infertility may be an early indicator of later-life health risk development, such as cardiovascular disease (CVD), the leading cause of death globally. Various infertility-associated factors such as female age, polycystic ovarian syndrome, …

BackgroundWomen who achieve pregnancy by ART show an increased risk of obstetric and perinatal complications compared with those with spontaneous conception (SC).Objective and rationaleThe purpose of this systematic review and meta-analysis…

BACKGROUND: Endometriosis is one of the most common gynecological diseases of reproductive age, with a prevalence of 5-10% and grave consequences for quality of life and fertility. Vitamin D (vit D), a classic regulator of plasma calcium co…

Obesity plays an important role in human fertility in both genders. The same is true for vitamin D, for which accumulating evidence from observational human studies suggests a key role for both male and female fertility. In the latter case,…

PURPOSE: To compare reproductive outcomes following conventional in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in poor responders fulfilling the Bologna criteria, with a single oocyte retrieved. METHODS: The pres…

Introduction: Endometriosis, defined as the growth of endometrial tissue outside \nthe uterine cavity is a common gynaecological disorder affecting 10-15% \nof women in their reproductive years. It is a major clinical problem causing in- \n…

Is it of value to treat endometriosis

To date, limited data exist concerning the relation between endometrial thickness on the day of human chorionic gonadotrohin (HCG) administration and ongoing pregnancy achievement in cycles stimulated with clomiphene citrate for intrauterin…

The use of gonadotropin-releasing hormone (GnRH) agonists in a long protocol appears to enhance the probability of conception in the presence of endometriosis. In addition, there is evidence to suggest that the use of prolonged downregulati…

The use of gonadotropin-releasing hormone (GnRH) agonists in a long protocol appears to enhance the probability of conception in the presence of endometriosis. In addition, there is evidence to suggest that the use of prolonged downregulati…