Analysis of the clinical efficiency of human menopausal gonadotropins in the assisted reproductive technology program by Yu. A. Drapkina, N. P. Makarova, V. Yu. Smolnikova

“…The relative number of blastocysts of good quality was 59.9%, while for patients in the older age group, the figure was 54.6. …”
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Change in the Strategy of Embryo Selection with Time-Lapse System Implementation—Impact on Clinical Pregnancy Rates by Lisa Boucret, Léa Tramon, Patrick Saulnier, Véronique Ferré-L’Hôtellier, Pierre-Emmanuel Bouet, Pascale May-Panloup

“…When it was available, KIDScore™ was decreased for 73.2% of the deselected embryos. Discordant blastocysts mainly corresponded with a decrease in KIDScore™ (90.9%), whereas discordant Day 3 embryos resulted from a decreased KIDScore™ and/or an irregular morphokinetic event. …”
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Embryos generated from oocytes lacking complex N- and O-glycans have compromised development and implantation. by Grasa, P, Kaune, H, Williams, S

“…In vitro development of zygotes to blastocysts was equivalent to Controls although all embryos from DM females lacked a normal zona pellucida (ZP) and ∼30% lacked a ZP entirely. …”

Age-related changes in the immune system of growing rats under acute and chronic stress conditions by Kapitonova, Marina, Mansor, Othman, Ullah, Muzammil

“…The in vitro development from 2 cells to blastocysts was suppressed in the presence of peritoneal fluid with mild, moderate or severe endometriosis (p<0.001 Fisher's exact test). lnterleukin-8 (16 and 1000 pglml) however inhibited mainly the development of the later stage embryo, from morulae to blastocysts (p<0.001 Fisher's exact test). …”
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Effect of COVID-19 vaccination on the outcome of in vitro fertilization: A systematic review and meta-analysis by Linyu Zhang, Linyu Zhang, Xinrui Sun, Xinrui Sun, Ruohan Wang, Ruohan Wang, Fang Ma, Fang Ma

“…Subgroup analysis showed that the mRNA vaccine had no statistical significance on all indexes (clinical, biochemical, or ongoing pregnancy rates; implantation, blastocysts, or fertilization rates; and the number of oocytes and MII/mature oocytes). …”
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Adaptative response to changes in pyruvate metabolism on the epigenetic landscapes and transcriptomics of bovine embryos by Aldcejam Martins da Fonseca Junior, Jessica Ispada, Erika Cristina dos Santos, Camila Bruna de Lima, João Vitor Alcantara da Silva, Erika Paulson, Daniel Estanislao Goszczynski, Marcelo Demarchi Goissis, Pablo Juan Ross, Marcella Pecora Milazzotto

“…The metabolic alteration found in blastocysts led to changes in the global pattern of H3K9 and H3K27 acetylation and H3K27 trimethylation. …”
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Mosaic results after preimplantation genetic testing for aneuploidy may be accompanied by changes in global gene expression by A. Martin, A. Mercader, A. Mercader, F. Dominguez, A. Quiñonero, M. Perez, R. Gonzalez-Martin, A. Delgado, A. Mifsud, A. Pellicer, A. Pellicer, M. J. De Los Santos, M. J. De Los Santos

“…A total of 25 samples were analyzed from 14 blastocysts with previous PGT-A diagnosis, including five low-level mosaic embryos and four high-level mosaic embryos. …”
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Preimplantation genetic testing for recurrent autosomal dominant osteogenesis imperfecta associated with paternal gonosomal mosaicism by Haiyan Bai, Xiaofang Li, Xitong Liu, Wenhao Shi, Bin He, Ruiyang Wei, Juanzi Shi

“…Three morphologically usable blastocysts were obtained in vitro and successfully expanded after a trophectoderm biopsy. …”
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#172 : The Comparison of Intra-Cytoplasmic Sperm Injection (ICSI) Treatment Outcome for Patient Stimulated with Progestine-Primed Ovarian Stimulation (PPOS) and Gonadotrophin-Relea... by Fam May Chee, Su Xian Lee, Yien Tze Tan, Sze Tian Tee

“…There was no significant difference found between PPOS and GnRHa long protocol in the number (mean± SD) oocytes retrieved [9.33±7.38 vs 8.55±7.44, p=0.352]; fertilized oocytes [5.79±4.92 vs 4.03±4.12, p=0.081]; number of blastocysts formed [4.35±2.82 vs 3.11±3.23, p=0.147] and utilized blastocysts [2.79±1.42 vs 2.35±2.66, p=0.300]. …”
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#386 : Warming Vitrified Oocytes in a Fraction of the Current Required Time Results in Superior Survival Rates by Amber Brewer, Carlos Guerrero, Lindsey VerMilyea

“…Oocyte vitrification protocols are different from that of embryos or blastocysts, while warming protocols allow all to be warmed the same. …”
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Using affected embryos to establish linkage phase in preimplantation genetic testing for thalassemia by Zhanhui Ou, Yu Deng, Yunhao Liang, Zhiheng Chen, Ling Sun

“…Analysis using NGS produced conclusive results for all biopsied blastocysts (100%, 217/217). One hundred and sixty (73.7%, 160/217) were unaffected by thalassemia. …”
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#18 : Risk Factors for Placenta Accreta Spectrum in Pregnancies Conceived after Frozen-Thawed Embryo Transfer in a Hormone Replacement Cycle by Tomoyuki Fujita, Toshiyuki Yoshizato, Hiroshi Mitao, Takuya Shimomura, Mayumi Fukagawa, Kimio Ushijima

“…Conclusion: A history of multiple previous uterine surgeries, the number of blastocysts transferred and a thin endometrium before ET are risk factors for PAS in pregnancies conceived after FET in an HRC.…”
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Patients with Recurrent Pregnancy Loss Have Similar Embryonic Preimplantation Genetic Testing Aneuploidy Rates and In Vitro Fertilization Outcomes to Infertility Patients by Molly Siegel Kornfield, M.D., Pamela Parker, M.D., M.P.H., Elizabeth Rubin, M.D., Bharti Garg, M.B.B.S., M.P.H., Thomas O’Leary, Ph.D., Paula Amato, M.D., David Lee, M.D., Diana Wu, M.D., Sacha Krieg, M.D., Ph.D.

“…Secondary outcomes included fertilization and blastulation rates, number of blastocysts biopsied, cycles without euploid blastocysts, and rates of pregnancy losses, clinical pregnancies, and live births after a euploid embryo transfer. …”
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Comparison of two vitrification methods for cryopreservation of porcine embryos by J. Říha, J. Vejnar

“…The aim of this study was to compare two vitrification methods of porcine perihatching blastocysts with regard to the success of transfer of these embryos to the recipients. …”
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Transcriptomic analysis of human endometrial stromal cells during early embryo invasion by Shuo Han, Minghui Liu, Shan Liu, Yuan Li

“…After in vitro decidualization, primary human endometrial stromal cells (phESCs) were cultured with blastocysts for 48 h. During this process, blastocysts attached and invaded the phESCs (embryo-invaded primary human endometrial stromal cells, ehESCs). …”
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Metabolic phenotype of adult mice offspring obtained from different variants of embryo transfer by M. V. Anisimova, Ya. Gong, N. S. Yudin, Yu. M. Moshkin, L. A. Gerlinskaya

“…Animals were separated in 4 groups according to the variant of embryo transplantation: group (control) – natural mating; group (2cl-bl) – incubation of 2-cell up to blastocysts; group (2cl-2cl) – removal and transplantation of the 2-cell embryo without incubation; group (Bl-bl) removal and transplantation of the blastocysts without incubation. …”
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Effect of Overfeeding Shetland Pony Mares on Embryonic Glucose and Lipid Accumulation, and Expression of Imprinted Genes by Nicky M. M. D’ Fonseca, Charlotte M. E. Gibson, David A. van Doorn, Ellen Roelfsema, Marta de Ruijter-Villani, Tom A. E. Stout

“…Maternal overfeeding did not affect lipid droplet accumulation in blastocysts, or glucose uptake by day-28 membranes. …”
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Embryonic stem cells and the challenge of transplantation tolerance. by Fairchild, P, Cartland, S, Nolan, K, Waldmann, H

“…Isolated from early blastocysts, embryonic stem (ES) cells capture the brief moment of pluripotency in the developing embryo, as evidenced by their differentiation into many somatic cell types in vitro. …”

Direct Effects of Mifepristone on Mice Embryogenesis: An In Vitro Evaluation by Single-Embryo RNA Sequencing Analysis by Yu-Ting Su, Jia-Shing Chen, Kuo-Chung Lan, Yung-Kuo Lee, Tian-Huei Chu, Yu-Cheng Ho, Cheng-Chun Wu, Fu-Jen Huang

“…Accordingly, in the present study, we collected mouse blastocysts ex vivo and treated implanted blastocysts with mifepristone for 24 h. …”
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Y chromosome AZFc microdeletion may have negative effect on embryo euploidy: a retrospective cohort study by Wei Jiang, Qijun Xie, Xin Li, Ye Yang, Ting Luan, Danyu Ni, Yuting Chen, Xinyu Wang, Chun Zhao, Xiufeng Ling

“…Results 294 and 2833 blastocysts were selected as AZFc microdeletion group and control group, respectively. …”
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