https://www.selleckchem.com/products/mepazine-hydrochloride.html 001). Additionally, LIN and HMP were found to be significantly different between successful and unsuccessful fertilization (P = 0.038 and P = 0.029, respectively). Additionally, significantly higher SiD scores were found for those spermatozoa that achieved both successful fertilization (P = 0.004) and blastocyst formation (P = 0.013). The possibility of carrying out real-time analyses of individual spermatozoa using an automatic tool such as SiD creates the opportunity to assist the embryologist in selecting the better spermatozoon for injection in an ICSI procedure. The possibility of carrying out real-time analyses of individual spermatozoa using an automatic tool such as SiD creates the opportunity to assist the embryologist in selecting the better spermatozoon for injection in an ICSI procedure. Do differences exist in euploidy rates in preimplantation genetic testing for aneuploidy (PGT-A) cycles with oral dydrogesterone primed ovarian stimulation protocol or the flexible gonadotropin-releasing hormone (GnRH) antagonist protocol? A retrospective cohort study. Patients received the oral dydrogesterone or the GnRH antagonist in the first PGT-A cycle between November 2017 and May 2019. Propensity matching was used to identify a propensity-matched antagonist group based on age, BMI and AMH with a 11 ratio. The primary outcome was the rate of euploid embryos. A total of 780 cycles were included, consisting of 390 cycles receiving dydrogesterone and 390 cycles receiving GnRH antagonist protocol. No significant difference was found in patient baseline and cycle characteristics in the two groups. No statistical difference was found in the number of oocytes retrieved, metaphase II oocytes, embryos biopsied and embryo testing between the two groups. As no biopsy blastocysts formed in some cycles, only 262 cycles in the study group and 263 cycles in the antagonist group received next-generation sequencing te