Stem cell-based models resembling murine blastocysts represent a useful system to investigate subsequent developmental processes. While existing cell lines derived from epiblast and trophectoderm can be aggregated to form 'blastoids', …
After manufacturing changes, the safety and tolerability of the progesterone vaginal ring (PVR) was compared to findings from the similarly designed phase 3 trial. This prospective, open-label, single-arm, multi-center U.S. …
Mycotoxins are widespread food contaminants, and urinary biomarkers reflect recent dietary exposure. Although mycotoxins have been implicated in reproductive toxicity, their impact on human oocyte and embryo development remains poorly …
Do blastocysts vitrified on day 6 result in different clinical outcomes compared with blastocysts vitrified on day 5 in vitrified‒warmed single embryo transfers (SET) without preimplantation genetic testing?
Background and Objectives: Endometriosis is a multifactorial gynecological condition associated with impaired fertility; however, its impact on embryo competence remains incompletely understood. This study aimed to evaluate embryo competence through …
Advanced maternal age (AMA) is a major challenge in reproductive medicine, compounded by coexisting conditions such as adenomyosis and endometriosis, which impair oocyte competence and endometrial receptivity. Prolonged gonadotropin-releasing hormone …
What is the optimal timing of progesterone exposure to achieve live births for day-6 blastocysts in artificial frozen-thawed embryo transfer (FET) cycles?
The objective of this study is to evaluate the effectiveness of prolonged GnRH agonist (GnRH-a) suppression combined with letrozole and intensive luteal phase support in a patient with severe adenomyosis …
Three-dimensional (3D) culture systems provide physiologically relevant models that better replicate in vivo cell architecture and function compared to the conventional two-dimensional cultures. In reproductive biology, 3D models of endometrial …