Bernabeu R

OBJECTIVE: Women undergoing IVF who have had a previous c-section (CS) have a lower live birth rate than those with a previous vaginal delivery. However, the precise underlying mechanisms need clarification. Does a previous CS affect the pa…

INTRODUCTION: Progesterone-primed cycles effectively suppress the pituitary LH surge during ovarian stimulation in oocyte donors and in the infertile population. Particularly in oocyte donors, the use of synthetic progesterone (progestins) …

OBJECTIVE: To compare the oocyte yield between follicular-phase stimulation (FPS) and luteal-phase stimulation (LPS) in suboptimal responders. DESIGN: Prospective, randomized, crossover clinical trial. PATIENTS: Forty-one patients with in…

As endometriosis is recognized as a contributing factor to infertility, prompting couples to embark on Assisted Reproductive Technology (ART) treatments, it becomes crucial to comprehend the extent and way this condition can affect success …

PURPOSE: To identify candidate variants in genes possibly associated with premature ovarian insufficiency (POI). METHODS: Fourteen women, from 7 families, affected by idiopathic POI were included. Additionally, 98 oocyte donors of the same…

OBJECTIVE: To study uterine peristalsis using step-by-step 4-dimensional (4D) ultrasound assessment video, explore its relationship with progesterone levels in a select in vitro fertilization population, and assess the reproducibility of th…

Objective: Twisted uterus is detected when the body of the uterus is rotated from the cervical canal. This anomaly may be due to different causes, such as uterine fibroids, endometriosis or the presence of both. The study has aimed to compa…

STUDY QUESTION: Do mitochondrial DNA (mtDNA) copy number and heteroplasmy in human embryos affect the ongoing pregnancy rate? SUMMARY ANSWER: Our study suggests that mtDNA copy number above a specific threshold is associated with the ongoi…