Effect of repeated vitrification of human embryos on pregnancy and neonatal outcomes by Yan Huang, Yi Cheng, Min Zhang, Yiqing Chen, Rong Zhou, Dewei Lin, Xinyu Guo

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Effects of the preservation medium and storage duration of domestic cat ovaries on the maturational and developmental competence of oocytes in vitro by Takumi YOSHIDA, Md Emtiaj ALAM, Keisuke HANAFUSA, Yasunori TSUJIMOTO, Masaya TSUKAMOTO, Ryoji KANEGI, Toshio INABA, Kikuya SUGIURA, Shingo HATOYA

Subjects: “…blastocyst…”
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Selection of Immature Cat Oocytes with Brilliant Cresyl Blue Stain Improves In Vitro Embryo Production during Non-Breeding Season by Anna Rita Piras, Federica Ariu, Maria-Teresa Zedda, Maria-Teresa Paramio, Luisa Bogliolo

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Usefulness of expanding the indications of early rescue intracytoplasmic sperm injection by Takashi Shibahara, Yuu Fukasaku, Nozomi Miyazaki, Hiroaki Kawato, Hiroyuki Minoura

Subjects: “…blastocyst…”
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Editorial: Parathyroid disorders: updates of PTH/serum Ca2+ regulation and therapeutic prospects by Fan Zhang, Yinde Huang, Jiongyu Hu, Supeng Yin

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Editorial: Molecular and cellular mechanisms in preimplantation IVF-embryo development by Renee J. Chosed, Shahryar K. Kavoussi, Dara S. Berger, Kaylee Massman, Maria Guerra-Velasquez

Subjects: “…blastocyst…”
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Time-lapse technology for embryo culture and selection by Kersti Lundin, Hannah Park

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What we learned from extended culture of ‘rejected’ day-3 cleavage stage embryos: a prospective cohort study by Anat Hershko Klement, Michal Ovadia, Amir Wiser, Arie Berkovitz, Tal Shavit, Luba Nemerovsky, Yehudith Ghetler, Ilan Cohen, Adrian Shulman

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Editorial: Solutions for organ transplantation: Xenotransplantation and interspecies chimaeras by Shoulong Deng, Dengke Pan, Yifan Dai, Jun Wu

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Developmental stage on day-5 and fragmentation rate on day-3 can influence the implantation potential of top-quality blastocysts in IVF cycles with single embryo transfer by Devroey Paul, Van Landuyt Lisbet, Papanikolaou Evangelos G, Verheyen Greta, della Ragione Tiziana, Van Steirteghem Andre

“…</p> <p>Results</p> <p>Expanded blastocysts compared to full blastocysts have higher implantation potential (56.5% vs. 29.3%, p < 0.05). …”
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#341 : Does Only the Stage Matters? Influence of a Blastocyst Scoring System on Clinical Pregnancy and Live Birth Outcomes with Fresh Set: A Concluding Study by Cheryl Lim, Melinda Chan, Jessie Phoon

“…Background: Blastocyst culture with single embryo transfer (SET) is now routinely offered to our IVF patients at KK IVF. …”
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#62 : Time-Lapse Imaging Analysis of Embryo Development: A Dynamic-Image-Based Prediction Model for Blastocyst Formation During Early 80 Hours Development by Mingpeng Zhao, Jing Fan, Xuemei Li, Hanhui Lli, Chaofan Zhang, David Yiu Leung Chan

“…The study employed two network input strategies for blastocyst formation prediction - utilizing static (A model) and dynamic image-based (B model) prediction models. …”
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#44 : Effects of Optimum (Optimization of Thyroid, Thrombophilia, Immunity, and Uterine Milieu) Treatment Strategy on Euploid Blastocyst Transfer in Advanced Aged Women with Recurrent Reproductive Failure by Keiji Kuroda, Takashi Horikawa, Azusa Moriyama, Keisuke Shiobara, Satoru Takamizawa, Yasushi Kuribayashi, Koji Nakagawa, Rikikazu Sugiyama

“…Background and Aims: Does the Optimization of Thyroid function, Thrombophilia, Immunity and Uterine Milieu (OPTIMUM) treatment strategy contribute to improving pregnancy outcomes after single euploid blastocyst transfer (SEBT) in patients with a history of repeated implantation failure (RIF) and/or recurrent pregnancy loss (RPL)? …”
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The true natural cycle frozen embryo transfer - impact of patient and follicular phase characteristics on serum progesterone levels one day prior to warmed blastocyst transfer by Sezcan Mumusoglu, Murat Erden, Irem Yarali Ozbek, Onur Ince, Sandro C. Esteves, Peter Humaidan, Hakan Yarali

“…In a previous retrospective study, low P4 levels (< 10 ng/mL) measured one day before warmed blastocyst transfer in t-NC were associated with significantly lower live-birth rates. …”
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Blastocyst-Derived Lactic Acid May Regulate S100A6 Expression and Function in Mouse Decidualization via Stimulation of Uterine Epithelial Arachidonic Acid Secretion by Meng-Yuan Li, Ying Wang, Ying Wu, Xu-Yu Zhao, Zhen-Shan Yang, Bo Li, Si-Ting Chen, Yu-Ying He, Zeng-Ming Yang

“…The molecular mechanism is verified in vitro by Western blotting and the quantitative polymerase chain reaction. (3) Results: From days 4 to 8 of pregnancy, S100A6 is specifically expressed in mouse subluminal stromal cells. Blastocyst-derived lactic acid induces AA secretion by activating the luminal epithelial p-cPLA2. …”
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Features of chromosomal abnormalities in relation to consanguinity: analysis of 10,556 blastocysts from IVF/ICSI cycles with PGT-A from consanguineous and non-consanguineous couples by Laura Melado, Barbara Lawrenz, Daniela Nogueira, Araz Raberi, Rachana Patel, Asina Bayram, Ibrahim Elkhatib, Human Fatemi

“…Nevertheless, the number of blastocysts biopsied on day 5 was lower for consanguine couples. …”
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Comparing Day 5 versus Day 6 euploid blastocyst in frozen embryo transfer and developing a predictive model for optimizing outcomes: a retrospective cohort study by Beining Yin, Sichen Li, Lin Sun, Zhiyi Yao, Yueyue Cui, Congli Zhang, Yile Zhang, Yile Zhang

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The aneuploidy testing of blastocysts developing from 0PN and 1PN zygotes in conventional IVF through TE-biopsy PGT-A and minimally invasive PGT-A by Haijing Zhao, Ping Yuan, Xiaoli Chen, Haiyan Lin, Jun Zhao, Jia Huang, Qi Qiu, Xiaohui Ji, Qingxue Zhang, Wenjun Wang

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#170 : Case Report: Live Birth Following Frozen Embryo Transfer of a Day 7 Euploid Blastocyst Derived from Vitrified-Warmed Oocytes with Delayed Maturation by Siow Shein Chok, Mei Wei Lim, Chong Seong Tan, Colin Soon Soo Lee

“…Of the 2 blastocysts analysed, only the day 7 blastocyst was a euploid. …”
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Post-Thaw Day 5 Blastocyst Culture Time Prior to Transfer Does Not Affect Assisted Reproduction Technology (ART) Outcomes in Frozen-Thawed Embryo Transfer Cycles by Marta Ciaffaglione, Marco Reschini, Martina Balli, Cristina Guarneri, Maria Carla Palermo, Monica Pinna, Valerio Pisaturo, Edgardo Somigliana, Alessio Paffoni, Paola Vigano’

“…Among those, <i>n</i> = 885 warmed blastocysts were cultured for 2–4 h, and <i>n</i> = 1029 were kept in culture for 20–22 h prior to transfer; the remaining blastocysts did not survive the warming protocol. …”
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