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Kim JH, Park EA, Yoon TK, Kim MJ, Lee JH, Lee KA, Hur YJ, Choi SY, Jo EH, Kim YS. In vitro Fertilization Outcomes of Frozen-thawed Embryo Transfer with Hatched Blastocysts versus with Hatching Blastocysts. Reprod Sci 2024:10.1007/s43032-024-01499-7. [PMID: 38811454 DOI: 10.1007/s43032-024-01499-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 02/09/2024] [Indexed: 05/31/2024]
Abstract
This study aimed to elucidate the effect of hatching status on in vitro fertilization (IVF) outcomes in frozen-thawed blastocyst transfer cycles. Frozen-thawed embryo transfer (FET) cycles performed at a single fertility center between 2016 and 2021 were retrospectively assessed. Analyses were restricted to 6,821 frozen-thawed blastocyst transfers in women aged 24-47 years. For optimal comparability, double embryo transfer (ET) cycles consisting of one hatching and one hatched blastocyst were excluded. The implantation and pregnancy rates were evaluated and compared between the hatching and hatched blastocyst transfer groups based on patients' age (<38 vs. ≥38 years), blastocyst grade (good vs. bad grade), and the number of transferred embryos (single ET vs. double ET). Hatched blastocyst transfer was associated with higher implantation and clinical pregnancy rates in the single ET group (15.7% and 15.6%, respectively; p<0.001). The transfer of two hatched blastocysts had higher implantation and clinical pregnancy rates compared to the transfer of two hatching blastocysts (19.5% and 20.4%, respectively; p<0.001) in the double ET group. In the hatched blastocyst transfer group, the clinical pregnancy and implantation rates were higher, regardless of each woman's age and embryo quality. The IVF treatment outcomes were improved when the blastocysts were hatched during FET cycles. Hence, hatched blastocyst transfer in FET cycles could be considered a superior method in IVF practice.
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Affiliation(s)
- Ji Hye Kim
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA Gangnam Medical Center, CHA University, Gyeonggi-do, Republic of Korea
| | - Eun A Park
- Fertility laboratory, CHA Fertility Center Seoul Station, Seoul, Republic of Korea
- Department of Biomedical Science, College of Life Science, CHA University, Gyeonggi-do, Republic of Korea
| | - Tae Ki Yoon
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA Gangnam Medical Center, CHA University, Gyeonggi-do, Republic of Korea
| | - Myung Joo Kim
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA Gangnam Medical Center, CHA University, Gyeonggi-do, Republic of Korea
| | - Jung Hyun Lee
- Fertility laboratory, CHA Fertility Center Seoul Station, Seoul, Republic of Korea
| | - Kyung-Ah Lee
- Department of Biomedical Science, College of Life Science, CHA University, Gyeonggi-do, Republic of Korea
| | - Yun Jung Hur
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA Gangnam Medical Center, CHA University, Gyeonggi-do, Republic of Korea
| | - Seung Young Choi
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
| | - Eun-Hye Jo
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea
| | - You Shin Kim
- CHA Fertility Center Seoul Station, CHA University, 416 Hangangdaero, Joongku, Seoul, Republic of Korea.
- Department of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA Gangnam Medical Center, CHA University, Gyeonggi-do, Republic of Korea.
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Baatarsuren M, Jamiyansuren J, Ganbaatar C, Sengebaljir D, Erdenekhuyag B, Enkhbaatar S, Baljinnyam L, Radnaa E, Dorjpurev A, Ganbat G, Boris T, Khangarid A. Clinical and neonatal outcomes of complete zona pellucida removal by laser-assisted hatching after single vitrified-warmed blastocyst transfer. Lasers Med Sci 2024; 39:51. [PMID: 38285329 DOI: 10.1007/s10103-024-04002-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 01/22/2024] [Indexed: 01/30/2024]
Abstract
Laser-assisted hatching (LAH) is a widely used and unavoidable technique in assisted reproductive technology after frozen embryo transfer (FET). We aimed to investigate the safety and efficacy of completely ZP (zona pellucida) removed by an assisted laser group compared to an intact group after FET. This retrospective study involved 320 SVBT single vitrified-warmed blastocyst transfers of 213 patients who underwent clomiphene citrate (CC) based minimal stimulation protocol. This study compared 160 SVBT with ZP that were completely removed using laser-assisted (laser beams of 10-15, a wavelength of 1.48 μm, and duration of 1.8-2.2 ms) to 160 cases of intact SVBT. Fisher's exact test, chi-squared test, and logistic regression are used for statistical analysis. The women's age, cause of infertility, BMI, transferred embryo day, insemination methods, and blastocyst grade were not significantly different between two groups. The implantation rate (66.2% vs. 51.2%, P < 0.01), the clinical pregnancy rate (CPR, 52.5% vs. 39.3%, P = 0.01), and the live birth rate (LBR, 43.7% vs. 29.3%, P < 0.01) were significantly higher in the completely ZP removed than the intact group. In logistic regression analysis, the laser-assisted hatching group showed about 2 times higher implantation rate and CPR and LBR than the control group. But miscarriage, gestational weeks, gender, birth weight, and twin births were insignificant between two groups. Our study suggests ZP free embryo transfer by assisted laser is more effective and safer than intact embryo transfer.
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Affiliation(s)
| | - Jambaldorj Jamiyansuren
- Ojinmed IVF Center, Ulaanbaatar, Mongolia
- Department of Molecular Biology and Genetics, School of Biomedicine, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
- Department of Biochemistry, School of Medicine, International University of Health and Welfare, Narita, Japan
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Ueno S, Berntsen J, Okimura T, Kato K. Improved pregnancy prediction performance in an updated deep-learning embryo selection model: a retrospective independent validation study. Reprod Biomed Online 2024; 48:103308. [PMID: 37914559 DOI: 10.1016/j.rbmo.2023.103308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/20/2023] [Accepted: 07/24/2023] [Indexed: 11/03/2023]
Abstract
RESEARCH QUESTION What is the effect of increasing training data on the performance of ongoing pregnancy prediction after single vitrified-warmed blastocyst transfer (SVBT) in a deep-learning model? DESIGN A total of 3960 SVBT cycles were retrospectively analysed. Embryos were stratified according to the Society for Assisted Reproductive Technology age groups. Embryos were scored by deep-learning models iDAScore v1.0 (IDA-V1) and iDAScore v2.0 (IDA-V2) (15% more training data than v1.0) and by Gardner grading. The discriminative performance of the pregnancy prediction for each embryo scoring model was compared using the area under the curve (AUC) of the receiver operating characteristic curve for each maternal age group. RESULTS The AUC of iDA-V2, iDA-V1 and Gardener grading in all cohort were 0.736, 0.720 and 0.702, respectively. iDA-V2 was significantly higher than iDA-V1 and Gardener grading (P < 0.0001). Group > 35 years (n = 757): the AUC of iDA-V2 was significantly higher than Gardener grading (0.718 versus 0.694, P = 0.015); group aged 35-37 years (n = 821), the AUC of iDA-V2 was significantly higher than iDA-V1 (0.712 versus 0.696, P = 0.035); group aged 41-42 years (n = 715, the AUC of iDA-V2 was significantly higher than Gardener grading (0.745 versus 0.696, P = 0.007); group > 42 years (n = 660) and group aged 38-40 years (n = 1007), no significant differences were found between the groups. CONCLUSION The performance of deep learning models for pregnancy prediction will be improved by increasing the size of the training data.
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Affiliation(s)
- Satoshi Ueno
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo 160-0023, Japan
| | | | - Tadashi Okimura
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo 160-0023, Japan
| | - Keiichi Kato
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo 160-0023, Japan..
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Ezoe K, Fujiwara N, Miki T, Kato K. Post-warming culture of human vitrified blastocysts with prolactin improves trophoblast outgrowth. Reprod Biol Endocrinol 2023; 21:6. [PMID: 36653830 PMCID: PMC9847091 DOI: 10.1186/s12958-023-01062-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 01/16/2023] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Human embryos express the prolactin (PRL) receptor at the morula and blastocyst stages. Treatment with PRL from cleavage to the blastocyst stage improves blastocyst outgrowth on fibronectin-coated dishes. However, whether post-warming PRL treatment of blastocysts cultured without PRL could improve outgrowth competence remains unknown. Furthermore, the optimal time for post-warming PRL treatment remains to be ascertained. This study investigated the effects of PRL treatment during recovery culture on human blastocyst outgrowth and its related genes. METHODS In total, 374 discarded vitrified blastocysts were randomly allocated to two groups, to be cultured with (n = 208) or without PRL (control; n = 166) for 120 min for recovery, and then plated on fibronectin-coated dishes. The expression level of PRL-interacting genes, blastocyst adhesion rate, outgrowth area, distance of trophoblast migration, and outgrowth degeneration were examined. RESULTS The mRNA expression of ezrin, radixin, and moesin, which regulate cell adhesion and invasion by controlling actin reorganization during epithelial-to-mesenchymal transition (EMT), was stimulated by PRL treatment for 120 min. The expression of EMT-related genes, transforming growth factor β1, snail1, and twist1 was also promoted following treatment with PRL for 120 min. PRL-treated blastocysts also exhibited augmented expression of cadherin 2 and transcriptional repression of cadherin 1. Higher mRNA expression of integrin-based focal adhesion-related genes, ITGA5 and ITGB1, was observed after treatment with PRL for 120 min than in the non- and shorter-treatment groups. PRL treatment for 120 min did not alter the rate of blastocyst adhesion to fibronectin-coated dishes 96 h after the outgrowth culture assay. However, multiple linear regression analysis revealed that the outgrowth area was significantly increased in PRL-treated blastocysts. The migration distance of trophoblast cells was significantly increased and degeneration rate was significantly decreased after PRL treatment. Furthermore, a more beneficial effect of PRL treatment on blastocyst outgrowth was observed when the blastocysts were vitrified on day 5 than when they were vitrified on day 6. CONCLUSIONS Post-warming culture of human vitrified blastocysts with PRL for 120 min promoted trophoblast outgrowth in vitrified human blastocysts. Furthermore, PRL treatment may reduce outgrowth degeneration by increasing resistance to apoptosis during trophoblast migration.
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Affiliation(s)
- Kenji Ezoe
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Nanoha Fujiwara
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Tetsuya Miki
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Keiichi Kato
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
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Ueno S, Berntsen J, Ito M, Okimura T, Kato K. Correlation between an annotation-free embryo scoring system based on deep learning and live birth/neonatal outcomes after single vitrified-warmed blastocyst transfer: a single-centre, large-cohort retrospective study. J Assist Reprod Genet 2022; 39:2089-2099. [PMID: 35881272 PMCID: PMC9475010 DOI: 10.1007/s10815-022-02562-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 07/04/2022] [Indexed: 11/30/2022] Open
Abstract
Propose Does an annotation-free embryo scoring system based on deep learning and time-lapse sequence images correlate with live birth (LB) and neonatal outcomes? Methods Patients who underwent SVBT cycles (3010 cycles, mean age: 39.3 ± 4.0). Scores were calculated using the iDAScore software module in the Vitrolife Technology Hub (Vitrolife, Gothenburg, Sweden). The correlation between iDAScore, LB rates, and total miscarriage (TM), including 1st- and 2nd-trimester miscarriage, was analysed using a trend test and multivariable logistic regression analysis. Furthermore, the correlation between the iDAScore and neonatal outcomes was analysed. Results LB rates decreased as iDAScore decreased (P < 0.05), and a similar inverse trend was observed for the TM rates. Additionally, multivariate logistic regression analysis showed that iDAScore significantly correlated with increased LB (adjusted odds ratio: 1.811, 95% CI: 1.666–1.976, P < 0.05) and decreased TM (adjusted odds ratio: 0.799, 95% CI: 0.706–0.905, P < 0.05). There was no significant correlation between iDAScore and neonatal outcomes, including congenital malformations, sex, gestational age, and birth weight. Multivariate logistic regression analysis, which included maternal and paternal age, maternal body mass index, parity, smoking, and presence or absence of caesarean section as confounding factors, revealed no significant difference in any neonatal characteristics. Conclusion Automatic embryo scoring using iDAScore correlates with decreased miscarriage and increased LB and has no correlation with neonatal outcomes. Supplementary information The online version contains supplementary material available at 10.1007/s10815-022-02562-5.
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Affiliation(s)
- Satoshi Ueno
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | | | - Motoki Ito
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Tadashi Okimura
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Keiichi Kato
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan.
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Okabe-Kinoshita M, Kobayashi T, Shioya M, Sugiura T, Fujita M, Takahashi K. Granulocyte-macrophage colony-stimulating factor-containing medium treatment after thawing improves blastocyst-transfer outcomes in the frozen- thawed blastocyst-transfer cycle. J Assist Reprod Genet 2022; 39:1373-1381. [PMID: 35469373 DOI: 10.1007/s10815-022-02493-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/11/2022] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To determine whether granulocyte-macrophage colony-stimulating factor (GM-CSF)-containing medium could improve embryo-transfer outcomes in frozen-thawed blastocyst transfer. METHODS Patients who underwent frozen-thawed blastocyst transfer (430 women, aged 30-39 years, 566 cycles) were analyzed. Frozen-thawed blastocysts were cultured in GM-CSF-containing medium or control medium for 3-5 h, followed by transfer to the uterus. The embryo-transfer outcomes in the two groups were measured and compared, and a propensity score matching (1:1) method was used to balance the differences in baseline characteristics. We analyzed 213 matched samples. RESULTS In patients who underwent frozen-thawed blastocyst transfer with GM-CSF, the percentage of human chorionic gonadotropin-positive cases, biochemical pregnancies, clinical pregnancies, ongoing pregnancies, and live birth rates was 60.6%, 7.98%, 52.6%, 42.9%, and 40.9%, respectively, as compared with 45.1%, 3.29%, 41.8%, 31.1%, and 30.5%, respectively, for the control groups. The rates of human chorionic gonadotropin positivity (odds ratio [OR]: 1.87, 95% confidence interval: [CI]: 1.27-2.75), biochemical pregnancy (2.55, 1.04-6.29), clinical pregnancy (1.54, 1.05-2.27), ongoing pregnancy (1.64, 1.13-2.41), and live birth (1.67, 1.14-2.45) were significantly higher in the GM-CSF group than the control group. The incidence of pregnancy loss (22.3% vs. 27.0%) did not significantly differ between the groups. CONCLUSION The use of a GM-CSF-containing medium for blastocyst-recovery culture improved the live birth rate as a result of increased implantation rate in the frozen-thawed blastocyst-transfer cycle. The use of GM-CSF-containing medium following blastocyst thawing could be an effective choice for improving the blastocyst-transfer outcomes.
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Affiliation(s)
| | - Tatsuya Kobayashi
- Takahashi Women's Clinic, 18-14-6F Shinmachi, Chuo-ku, Chiba, 260-0028, Japan. .,Department of Reproductive Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan.
| | - Masashi Shioya
- Takahashi Women's Clinic, 18-14-6F Shinmachi, Chuo-ku, Chiba, 260-0028, Japan.,Department of Reproductive Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670, Japan
| | - Tomoharu Sugiura
- Takahashi Women's Clinic, 18-14-6F Shinmachi, Chuo-ku, Chiba, 260-0028, Japan
| | - Maki Fujita
- Takahashi Women's Clinic, 18-14-6F Shinmachi, Chuo-ku, Chiba, 260-0028, Japan
| | - Keiichi Takahashi
- Takahashi Women's Clinic, 18-14-6F Shinmachi, Chuo-ku, Chiba, 260-0028, Japan
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Ueno S, Berntsen J, Ito M, Uchiyama K, Okimura T, Yabuuchi A, Kato K. Pregnancy prediction performance of an annotation-free embryo scoring system on the basis of deep learning after single vitrified-warmed blastocyst transfer: a single-center large cohort retrospective study. Fertil Steril 2021; 116:1172-1180. [PMID: 34246469 DOI: 10.1016/j.fertnstert.2021.06.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 06/01/2021] [Accepted: 06/02/2021] [Indexed: 12/26/2022]
Abstract
OBJECTIVE To analyze the performance of an annotation-free embryo scoring system on the basis of deep learning for pregnancy prediction after single vitrified blastocyst transfer (SVBT) compared with the performance of other blastocyst grading systems dependent on annotation or morphology scores. DESIGN A single-center large cohort retrospective study from an independent validation test. SETTING Infertility clinic. PATIENT(S) Patients who underwent SVBT cycles (3,018 cycles, mean ± SD patient age 39.3 ± 4.0 years). INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) The pregnancy prediction performances of each embryo scoring model were compared using the area under curve (AUC) for predicting the fetal heartbeat status for each maternal age group. RESULT(S) The AUCs of the <35 years age group (n = 389) for pregnancy prediction were 0.72 for iDAScore, 0.66 for KIDScore, and 0.64 for the Gardner criteria. The AUC of iDAScore was significantly greater than those of the other two models. For the 35-37 years age group (n = 514), the AUCs were 0.68, 0.68, and 0.65 for iDAScore, KIDScore, and the Gardner criteria, respectively, and were not significantly different. The AUCs of the 38-40 years age group (n = 796) were 0.67 for iDAScore, 0.65 for KIDScore, and 0.64 for the Gardner criteria, and there were no significant differences. The AUCs of the 41-42 years age group (n = 636) were 0.66, 0.66, and 0.63 for iDAScore, KIDScore, and the Gardner criteria, respectively, and there were no significant differences among the pregnancy prediction models. For the >42 years age group (n = 389), the AUCs were 0.76 for iDAScore, 0.75 for KIDScore, and 0.75 for the Gardner criteria, and there were no significant differences. Thus, iDAScore AUC was either the highest or equal to the highest AUC for all age groups, although a significant difference was observed only in the youngest age group. CONCLUSION(S) Our results showed that objective embryo assessment by a completely automatic and annotation-free model, iDAScore, performed as well as or even better than more traditional embryo assessment or annotation-dependent ranking tools. iDAScore could be an optimal pregnancy prediction model after SVBT, especially in young patients.
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Kato K, Ueno S, Berntsen J, Ito M, Shimazaki K, Uchiyama K, Okimura T. Comparing prediction of ongoing pregnancy and live birth outcomes in patients with advanced and younger maternal age patients using KIDScore™ day 5: a large-cohort retrospective study with single vitrified-warmed blastocyst transfer. Reprod Biol Endocrinol 2021; 19:98. [PMID: 34215265 PMCID: PMC8252298 DOI: 10.1186/s12958-021-00767-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The KIDScore™ Day 5 (KS-D5) model, version 3, is a general morphokinetic prediction model (Vitrolife, Sweden) for fetal heartbeat prediction after embryo transfer that was developed based on a large data set that included implantation results from a range of clinics with different patient populations, culture conditions and clinical practices. However, there was no study to comparing their pregnancy and live birth prediction ability among different maternal age. The aim of this study is to analyze the performance of KS-D5 in predicting pregnancy and live birth in various maternal age groups after single vitrified-warmed blastocyst transfer (SVBT). METHODS A total of 2486 single vitrified-warmed blastocyst transfer (SVBT) cycles were analyzed retrospectively. Confirmed fetal heartbeat positive (FHB+) and live birth (LB+) rates were stratified by Society for Assisted Reproductive Technology (SART) maternal age criteria (< 35, 35-37, 38-40, 41-42 and ≥ 43 years of age). Within each age group, the performance of the prediction model was calculated using the AUC, and the results were compared across the age groups. RESULTS In all age groups, the FHB+ rates decreased as the KIDScore decreased (P < 0.05). Conversely, the AUCs increased as the maternal age increased. The AUC of the < 35 age group (0.589) was significantly lower than the AUCs of the 41-42 age group (0.673) and the ≥43 age group (0.737), respectively (P < 0.05). In all age groups, the LB+ rates decreased as the KIDScore decreased (P < 0.05). Conversely, the AUCs increased as the maternal age increased. The AUC of the ≥43 age group (0.768) was significantly higher than the AUCs of other age groups (P < 0.05; < 35 age group = 0.596, 35-37 age group = 0.640, 38-40 age group = 0.646, 41-42 age group = 0.679). CONCLUSIONS In the present study, we determined that the KIDScore model worked well for prediction of pregnancy and live birth outcomes in advanced age patients.
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Affiliation(s)
- Keiichi Kato
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan.
| | - Satoshi Ueno
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | | | - Motoki Ito
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Kiyoe Shimazaki
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Kazuo Uchiyama
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
| | - Tadashi Okimura
- Kato Ladies Clinic, 7-20-3, Nishi-shinjuku, Shinjuku, Tokyo, 160-0023, Japan
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Ohata K, Ezoe K, Miki T, Kouraba S, Fujiwara N, Yabuuchi A, Kobayashi T, Kato K. Effects of fatty acid supplementation during vitrification and warming on the developmental competence of mouse, bovine and human oocytes and embryos. Reprod Biomed Online 2021; 43:14-25. [PMID: 34049810 DOI: 10.1016/j.rbmo.2021.03.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 02/05/2023]
Abstract
RESEARCH QUESTION Does fatty acid supplementation in vitrification and warming media influence developmental competence in oocytes after vitrification and warming? DESIGN Mouse oocytes and four-cell embryos were vitrified and warmed with solutions supplemented with fatty acid and cultured to the blastocyst stage. To study lipid metabolism after vitrification, quantitative real-time polymerase chain reaction was used to analyse the expression of genes related to beta oxidation in mouse embryos vitrified and warmed with or without fatty acids. The effects of fatty acid supplementation in the warming solutions on the developmental competence of bovine and human embryos were analysed. Blastocyst outgrowth assay was used to evaluate the potential of human blastocysts for adhesion to fibronectin. RESULTS The neutral lipid content of mouse oocytes in the fatty acid 1% supplementation group was significantly higher than in the fatty acid 0% group (P = 0.0032). The developmental rate to the blastocyst stage was significantly higher in the fatty acid 1% group than in the fatty acid 0% group in mice (P = 0.0345). Fatty acid supplementation in warming solution upregulated Acaa2 and Hadha in mouse embryos. Fatty acids significantly improved the developmental ability of bovine embryos to the blastocyst stage (P = 0.0048). Warming with 1% fatty acid supplementation significantly increased the proportion of human blastocysts with morphological grade A inner cell mass (P = 0.0074) and trophectoderm (P = 0.0323). CONCLUSIONS Fatty acid supplementation in the warming solutions improved the developmental competence of vitrified-warmed mouse oocytes by activating the beta-oxidation pathway. Fatty acid supplementation enhanced the developmental rate of bovine embryos to the blastocyst stage and improved morphological characteristics of human embryos vitrified at the cleavage stage.
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Affiliation(s)
- Kazuki Ohata
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan
| | - Kenji Ezoe
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan.
| | - Tetsuya Miki
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan
| | - Shizu Kouraba
- Towako Medical Research Center, 2-5-2 Asahidai, Ishikawa Nomi-shi 923-1211, Japan
| | - Nanoha Fujiwara
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan
| | - Akiko Yabuuchi
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan
| | - Tamotsu Kobayashi
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan
| | - Keiichi Kato
- Kato Ladies Clinic, 7-20-3 Nishishinjuku, Tokyo Shinjuku-ku 160-0023, Japan.
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Endo Y, Mitsuhata S, Hayashi M, Fujii Y, Motoyama H. Laser-assisted hatching on clinical and neonatal outcomes in patients undergoing single vitrified Blastocyst transfer: A propensity score-matched study. Reprod Med Biol 2021; 20:182-189. [PMID: 33850451 PMCID: PMC8022098 DOI: 10.1002/rmb2.12366] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 12/24/2020] [Accepted: 12/25/2020] [Indexed: 11/25/2022] Open
Abstract
PURPOSE This study determined the effect of laser-assisted hatching on the clinical and neonatal outcomes of single vitrified blastocyst transfer. METHODS From June 2014 to March 2018, 289 matched pairs after propensity score matching were analyzed. During the blastocyst warming procedure, a small section of the zona pellucida area in the empty perivitelline space was sliced off using multiple laser beams. The clinical and neonatal outcomes of the laser-treated group and non-treatment control were analyzed. RESULTS In the laser-assisted hatching group, significantly higher rates of clinical pregnancy (40.8% vs 29.4%, P < .01) and live delivery (34.3% vs 22.5%, P < .01) were observed compared to the control group. Other variables such as the average gestational weeks, the sex of the baby, birthweight, or congenital malformations were found to have no significant differences in neonatal outcomes. Moreover, all babies were singleton live births. CONCLUSIONS Single vitrified blastocyst transfer treated with laser-assisted hatching increases the live birth rate and has no adverse effects on neonatal outcomes.
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Affiliation(s)
- Yuji Endo
- IVF CenterKurashiki Medical ClinicKurashikiJapan
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Ezoe K, Miki T, Ohata K, Fujiwara N, Yabuuchi A, Kobayashi T, Kato K. Prolactin receptor expression and its role in trophoblast outgrowth in human embryos. Reprod Biomed Online 2021; 42:699-707. [PMID: 33608185 DOI: 10.1016/j.rbmo.2021.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/27/2020] [Accepted: 01/10/2021] [Indexed: 11/26/2022]
Abstract
RESEARCH QUESTION What is the gene expression pattern of prolactin receptor (PRLR) in human pre-implantation embryos and what are its functions during the embryonic development and adhesion process? DESIGN A total of 405 discarded human vitrified oocytes and embryos donated for research by consenting couples were used in this study. The oocytes and embryos were used to analyse PRLR expression and to evaluate the influence of prolactin (PRL) supplementation in the embryo culture medium on embryo developmental competence and viability. The rates of blastocyst development and adhesion, outgrowth area, cytoskeletal reorganization and nascent adhesion formation were compared between groups. RESULTS PRLR expression increased significantly after embryo compaction (P < 0.0001) and blastulation (P < 0.0001). Supplementation of the embryo culture medium with PRL did not improve the developmental rate and morphological grade. In contrast, blastocyst outgrowth was significantly increased in embryos cultured with PRL (P = 0.0004). Phosphorylation of JAK2, downstream of the prolactin receptor family, was markedly higher in the PRL-treated embryos than in embryos cultured without PRL. Furthermore, the expression of mRNAs encoding ezrin-radixin-moesin proteins and epithelial-mesenchymal transition-related genes was stimulated by the activation of PRL-JAK2 signalling. The PRL-treated embryos had higher mRNA expression of integrins than non-treated embryos, and transcriptional repression of cadherin 1 was observed after PRL treatment. More nascent adherent cells expressed focal adhesion kinase and paxillin in PRL-treated embryos than in non-treated embryos. CONCLUSIONS Human embryos express PRLR at the morula and blastocyst stages, and PRLR signalling stimulates blastocyst adhesion by promoting integrin-based focal adhesions and cytoskeletal organization during trophoblast outgrowth.
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Affiliation(s)
- Kenji Ezoe
- Kato Ladies Clinic, Shinjuku-ku Tokyo 160-0023, Japan
| | - Tetsuya Miki
- Kato Ladies Clinic, Shinjuku-ku Tokyo 160-0023, Japan
| | - Kazuki Ohata
- Kato Ladies Clinic, Shinjuku-ku Tokyo 160-0023, Japan
| | | | | | | | - Keiichi Kato
- Kato Ladies Clinic, Shinjuku-ku Tokyo 160-0023, Japan.
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Rubino P, Tapia L, Ruiz de Assin Alonso R, Mazmanian K, Guan L, Dearden L, Thiel A, Moon C, Kolb B, Norian JM, Nelson J, Wilcox J, Tan T. Trophectoderm biopsy protocols can affect clinical outcomes: time to focus on the blastocyst biopsy technique. Fertil Steril 2020; 113:981-989. [PMID: 32204876 DOI: 10.1016/j.fertnstert.2019.12.034] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/19/2019] [Accepted: 12/23/2019] [Indexed: 01/21/2023]
Abstract
OBJECTIVE To compare two different blastocyst biopsy protocols. DESIGN Retrospective single-center cohort study. SETTINGS Private in vitro fertilization center. PATIENT(S) The study included 1,670 frozen-thawed embryo transfers (FETs) with preimplantation genetic testing for aneuploidy (PGT-A). INTERVENTION None. MAIN OUTCOME MEASURE(S) Survival rate (SR) after thawing, clinical pregnancy rate (CPR), ongoing implantation rate (IR), and live birth rate (LBR). RESULT(S) Eight hundred thirty-five FETs with PGT-A cycles including only embryos biopsied in the sequential blastocyst hatching and biopsy protocol paired with the ablation of one-fourth of the zona pellucida (ZP) were matched with 835 FETs with PGT-A cycles including only embryos biopsied in the day 3 prehatching protocol by female age (±1 year), number of embryos transferred, use of gestational carrier or egg donor, and day of blastocyst transfer. Only FETs with euploid blastocysts graded no lower than 4BB were included, and cycles with fewer than five oocytes were excluded. SR after thawing, CPR, ongoing IR, and LBR were significantly higher in the FET cycles with the embryos biopsied in the sequential hatching and biopsy protocol. Four cases of monozygotic twin pregnancies were reported with the day 3 prehatching protocol and none with the sequential hatching and biopsy protocol. CONCLUSION(S) Our results show, for the first time, that using different blastocyst biopsy protocols can affect clinical outcomes. Because the study was retrospective, our findings should be validated in a prospective trial.
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Affiliation(s)
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- HRC Fertility, Pasadena, California
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Jeong Y, Ock S, Yoo JG, Yu D, Choi I. The Cxadr–Adam10 complex plays pivotal roles in tight junction integrity and early trophoblast development in mice. Mol Reprod Dev 2019; 86:1628-1638. [DOI: 10.1002/mrd.23250] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 07/16/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Yelin Jeong
- Division of Animal and Dairy Sciences, College of Agriculture and Life SciencesChungnam National UniversityDaejeon Republic of Korea
- Disease Model Research Laboratory, Genome Editing Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon Republic of Korea
| | - Sun‐A Ock
- National Institute of Animal ScienceRural Development AdministrationJeollabuk‐do Republic of Korea
| | - Jae Gyu Yoo
- National Institute of Animal ScienceRural Development AdministrationJeollabuk‐do Republic of Korea
| | - Dae‐Yeul Yu
- Disease Model Research Laboratory, Genome Editing Research CenterKorea Research Institute of Bioscience and Biotechnology (KRIBB)Daejeon Republic of Korea
- Department of Functional GenomicsUniversity of Science and TechnologyDaejeon Republic of Korea
| | - Inchul Choi
- Division of Animal and Dairy Sciences, College of Agriculture and Life SciencesChungnam National UniversityDaejeon Republic of Korea
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Kirienko KV, Apryshko VP, Naumova AA, Kharitonova MA, Klepukov AA, Bolt AI, Ermilova IY, Mironova AG, Bozina YV, Lebedeva EB, Simonenko EY, Vajta G, Yakovenko SA. Mechanical zona pellucida removal of vitrified-warmed human blastocysts does not affect the clinical outcome. Reprod Biomed Online 2019; 39:745-749. [PMID: 31530444 DOI: 10.1016/j.rbmo.2019.06.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 05/24/2019] [Accepted: 06/05/2019] [Indexed: 10/26/2022]
Abstract
RESEARCH QUESTION Does complete mechanical removal of the zona pellucida modify the outcome of transfer of vitrified-warmed human blastocysts? DESIGN In a prospective randomized controlled study, 419 couples were allocated to either zona pellucida-free (n = 209) or zona intact (n = 210) vitrified-warmed embryo transfer. Main outcome measures included clinical pregnancy, implantation and ongoing pregnancy rates. RESULTS Transfer of zona pellucida-free blastocysts resulted in clinical pregnancy, implantation and ongoing pregnancy rates (35,9%, 33,9% and 32,1%, respectively), similar to those achieved with zona intact control embryos (39%, 36,4% and 33,1%, respectively). CONCLUSION Total mechanical removal of the zona pellucida did not affect the tested parameters of clinical outcomes.
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Affiliation(s)
| | - Valentina P Apryshko
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia; Lomonosov Moscow State University, Faculty of Biology, 1/12 Leninskie gori, Moscow 119234, Russia
| | - Anna A Naumova
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia
| | | | | | - Anton I Bolt
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia
| | | | - Anna G Mironova
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia; Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Kosygina st., 4., Moscow 119334, Russia
| | - Yana V Bozina
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia
| | | | - Ekaterina Y Simonenko
- Lomonosov Moscow State University, Faculty of Physics, Biophysics Department, 1/2 Leninskie gori, Moscow 119991, Russia
| | - Gabor Vajta
- RVT Australia, 20 Slate Close, Brinsmead QLD 4870, Australia.
| | - Sergey A Yakovenko
- Altravita IVF Clinic, 4A Nagornaya 117186, Moscow, Russia; Lomonosov Moscow State University, Faculty of Physics, Biophysics Department, 1/2 Leninskie gori, Moscow 119991, Russia
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Alteri A, Viganò P, Maizar AA, Jovine L, Giacomini E, Rubino P. Revisiting embryo assisted hatching approaches: a systematic review of the current protocols. J Assist Reprod Genet 2018; 35:367-391. [PMID: 29350315 PMCID: PMC5904073 DOI: 10.1007/s10815-018-1118-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 01/04/2018] [Indexed: 11/29/2022] Open
Abstract
Zona pellucida (ZP) manipulation, termed "assisted hatching" (AH), has been introduced in order to favor embryo hatching and ultimately improve assisted reproductive technology success but with poor proofs of safety and biological plausibility. We herein provide a systematic review of clinical outcomes following the application of different methods of ZP manipulation on fresh or frozen/thawed embryos at different developmental stages in different groups of patients. Out of the 69 papers that compared the clinical outcomes deriving from hatched versus non-hatched embryos, only 11 considered blastocysts while the rest referred to cleavage stage embryos. The ZP thinning of fresh embryos either by chemical or laser approach was shown to provide very limited benefit in terms of clinical outcomes. Better results were observed with procedures implying a higher degree of zona manipulation, including zona removal. Studies comparing the mechanical or chemical procedures to those laser-mediated consistently reported a superiority of the latter ones over the former. Literature is consistent for a benefit of ZP breaching in thawed blastocysts. This review provides the current knowledge on the AH procedure in order to improve its efficacy in the appropriate context. Embryologists might benefit from the approaches presented herein in order to improve Assisted Reproduction Technologies (ART) outcomes.
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Affiliation(s)
- Alessandra Alteri
- Obstetrics and Gynaecology Department, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy.
| | - Paola Viganò
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Ahmad Abu Maizar
- California Fertility Partners, 11818 Wilshire Blvd, Los Angeles, CA, 90025, USA
| | - Luca Jovine
- Department of Biosciences and Nutrition & Center for Innovative Medicine, Karolinska Institutet, Hälsovägen 7, SE-141 83, Huddinge, Sweden
| | - Elisa Giacomini
- Reproductive Sciences Laboratory, Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Via Olgettina 60, 20132, Milan, Italy
| | - Patrizia Rubino
- HRC Fertility, 333 South Arroyo Parkway, Pasadena, CA, 91105, USA
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