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Chromosome analysis of blastocysts derived from single pronuclear zygotes by array CGH and clinical outcomes by the transfer of single pronuclear zygotes

Purpose This study aimed to explore the aneuploidy of blastocysts derived from single pronuclear (1PN) zygotes, almost 75% of which were regarded as diploid, using array CGH and examine the pregnancy outcomes. Methods Embryonic aneuploidy screening of sixteen embryos from 1PN zygotes and sixteen emb...

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Published in:Journal of assisted reproduction and genetics 2020-07, Vol.37 (7), p.1645-1652
Main Authors: Hirata, Kimiko, Goto, Sakae, Izumi, Yoko, Taguchi, Misato, Hayashi, Ayano, Fujioka, Misono, Ishiko, Akiko, Nakanishi, Keiko, Kimura, Fuminori, Murakami, Takashi
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container_title Journal of assisted reproduction and genetics
container_volume 37
creator Hirata, Kimiko
Goto, Sakae
Izumi, Yoko
Taguchi, Misato
Hayashi, Ayano
Fujioka, Misono
Ishiko, Akiko
Nakanishi, Keiko
Kimura, Fuminori
Murakami, Takashi
description Purpose This study aimed to explore the aneuploidy of blastocysts derived from single pronuclear (1PN) zygotes, almost 75% of which were regarded as diploid, using array CGH and examine the pregnancy outcomes. Methods Embryonic aneuploidy screening of sixteen embryos from 1PN zygotes and sixteen embryos from 2PN zygotes was performed using array CGH in study 1. In addition, the reproductive outcome of 1761 single blastocysts, after untested frozen-thawed blastocyst transfer in IVF/ICSI patients, was retrospectively analyzed and compared between the 1PN and 2PN groups in study 2. Results The aneuploidy rates were 30.8% (4/13) in 1PN IVF, 33.3% (1/3) in 1PN ICSI, 46.2% (6/13) in 2PN IVF, and 100% (3/3) in 2PN ICSI. The 1PN group achieved clinical pregnancy in 25.0% (7/28) of IVF and 30.0% (3/10) of ICSI, whereas these rates in the 2PN control group were 44.6% (557/1250) of IVF and 37.4% (177/473) of ICSI. No miscarriage occurred in the pregnancies from 1PN zygotes, whereas the rates of miscarriage in the 2PN control group were 22.6% (126/557) in IVF and 22.2% (39/176) in ICSI. The delivery rate was similar in all groups. Ten deliveries in the 1PN group showed no newborn malformation. Conclusion Within the limits of the small sample size, our results suggest that the aneuploidy and delivery rates of the blastocysts derived from 1PN zygotes are the same as those derived from 2PN zygotes. Blastocysts derived from 1PN zygotes may be used clinically and could increase the chance of pregnancy.
doi_str_mv 10.1007/s10815-020-01800-y
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Methods Embryonic aneuploidy screening of sixteen embryos from 1PN zygotes and sixteen embryos from 2PN zygotes was performed using array CGH in study 1. In addition, the reproductive outcome of 1761 single blastocysts, after untested frozen-thawed blastocyst transfer in IVF/ICSI patients, was retrospectively analyzed and compared between the 1PN and 2PN groups in study 2. Results The aneuploidy rates were 30.8% (4/13) in 1PN IVF, 33.3% (1/3) in 1PN ICSI, 46.2% (6/13) in 2PN IVF, and 100% (3/3) in 2PN ICSI. The 1PN group achieved clinical pregnancy in 25.0% (7/28) of IVF and 30.0% (3/10) of ICSI, whereas these rates in the 2PN control group were 44.6% (557/1250) of IVF and 37.4% (177/473) of ICSI. No miscarriage occurred in the pregnancies from 1PN zygotes, whereas the rates of miscarriage in the 2PN control group were 22.6% (126/557) in IVF and 22.2% (39/176) in ICSI. The delivery rate was similar in all groups. Ten deliveries in the 1PN group showed no newborn malformation. Conclusion Within the limits of the small sample size, our results suggest that the aneuploidy and delivery rates of the blastocysts derived from 1PN zygotes are the same as those derived from 2PN zygotes. Blastocysts derived from 1PN zygotes may be used clinically and could increase the chance of pregnancy.</description><identifier>ISSN: 1058-0468</identifier><identifier>EISSN: 1573-7330</identifier><identifier>DOI: 10.1007/s10815-020-01800-y</identifier><identifier>PMID: 32415641</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Adult ; Aneuploidy ; Assisted Reproduction Technologies ; Blastocyst - physiology ; Blastocysts ; Chromosome Aberrations ; Comparative Genomic Hybridization - methods ; Cryopreservation ; Diploids ; Embryos ; Female ; Fertilization in Vitro - methods ; Gynecology ; Human Genetics ; Humans ; Medicine ; Medicine &amp; Public Health ; Miscarriage ; Pregnancy ; Pregnancy Outcome ; Reproductive Medicine ; Single Embryo Transfer ; Sperm Injections, Intracytoplasmic - methods ; Zygote - physiology ; Zygotes</subject><ispartof>Journal of assisted reproduction and genetics, 2020-07, Vol.37 (7), p.1645-1652</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020</rights><rights>Springer Science+Business Media, LLC, part of Springer Nature 2020.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c540t-90893e4dd524247fa765b35ec31d7a8cc6c7bbae9507f4b597b7049de1f897893</citedby><cites>FETCH-LOGICAL-c540t-90893e4dd524247fa765b35ec31d7a8cc6c7bbae9507f4b597b7049de1f897893</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7376778/pdf/$$EPDF$$P50$$Gpubmedcentral$$H</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC7376778/$$EHTML$$P50$$Gpubmedcentral$$H</linktohtml><link.rule.ids>230,314,727,780,784,885,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/32415641$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hirata, Kimiko</creatorcontrib><creatorcontrib>Goto, Sakae</creatorcontrib><creatorcontrib>Izumi, Yoko</creatorcontrib><creatorcontrib>Taguchi, Misato</creatorcontrib><creatorcontrib>Hayashi, Ayano</creatorcontrib><creatorcontrib>Fujioka, Misono</creatorcontrib><creatorcontrib>Ishiko, Akiko</creatorcontrib><creatorcontrib>Nakanishi, Keiko</creatorcontrib><creatorcontrib>Kimura, Fuminori</creatorcontrib><creatorcontrib>Murakami, Takashi</creatorcontrib><title>Chromosome analysis of blastocysts derived from single pronuclear zygotes by array CGH and clinical outcomes by the transfer of single pronuclear zygotes</title><title>Journal of assisted reproduction and genetics</title><addtitle>J Assist Reprod Genet</addtitle><addtitle>J Assist Reprod Genet</addtitle><description>Purpose This study aimed to explore the aneuploidy of blastocysts derived from single pronuclear (1PN) zygotes, almost 75% of which were regarded as diploid, using array CGH and examine the pregnancy outcomes. Methods Embryonic aneuploidy screening of sixteen embryos from 1PN zygotes and sixteen embryos from 2PN zygotes was performed using array CGH in study 1. In addition, the reproductive outcome of 1761 single blastocysts, after untested frozen-thawed blastocyst transfer in IVF/ICSI patients, was retrospectively analyzed and compared between the 1PN and 2PN groups in study 2. Results The aneuploidy rates were 30.8% (4/13) in 1PN IVF, 33.3% (1/3) in 1PN ICSI, 46.2% (6/13) in 2PN IVF, and 100% (3/3) in 2PN ICSI. The 1PN group achieved clinical pregnancy in 25.0% (7/28) of IVF and 30.0% (3/10) of ICSI, whereas these rates in the 2PN control group were 44.6% (557/1250) of IVF and 37.4% (177/473) of ICSI. No miscarriage occurred in the pregnancies from 1PN zygotes, whereas the rates of miscarriage in the 2PN control group were 22.6% (126/557) in IVF and 22.2% (39/176) in ICSI. The delivery rate was similar in all groups. Ten deliveries in the 1PN group showed no newborn malformation. Conclusion Within the limits of the small sample size, our results suggest that the aneuploidy and delivery rates of the blastocysts derived from 1PN zygotes are the same as those derived from 2PN zygotes. 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Methods Embryonic aneuploidy screening of sixteen embryos from 1PN zygotes and sixteen embryos from 2PN zygotes was performed using array CGH in study 1. In addition, the reproductive outcome of 1761 single blastocysts, after untested frozen-thawed blastocyst transfer in IVF/ICSI patients, was retrospectively analyzed and compared between the 1PN and 2PN groups in study 2. Results The aneuploidy rates were 30.8% (4/13) in 1PN IVF, 33.3% (1/3) in 1PN ICSI, 46.2% (6/13) in 2PN IVF, and 100% (3/3) in 2PN ICSI. The 1PN group achieved clinical pregnancy in 25.0% (7/28) of IVF and 30.0% (3/10) of ICSI, whereas these rates in the 2PN control group were 44.6% (557/1250) of IVF and 37.4% (177/473) of ICSI. No miscarriage occurred in the pregnancies from 1PN zygotes, whereas the rates of miscarriage in the 2PN control group were 22.6% (126/557) in IVF and 22.2% (39/176) in ICSI. The delivery rate was similar in all groups. Ten deliveries in the 1PN group showed no newborn malformation. Conclusion Within the limits of the small sample size, our results suggest that the aneuploidy and delivery rates of the blastocysts derived from 1PN zygotes are the same as those derived from 2PN zygotes. Blastocysts derived from 1PN zygotes may be used clinically and could increase the chance of pregnancy.</abstract><cop>New York</cop><pub>Springer US</pub><pmid>32415641</pmid><doi>10.1007/s10815-020-01800-y</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record>
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subjects Adult
Aneuploidy
Assisted Reproduction Technologies
Blastocyst - physiology
Blastocysts
Chromosome Aberrations
Comparative Genomic Hybridization - methods
Cryopreservation
Diploids
Embryos
Female
Fertilization in Vitro - methods
Gynecology
Human Genetics
Humans
Medicine
Medicine & Public Health
Miscarriage
Pregnancy
Pregnancy Outcome
Reproductive Medicine
Single Embryo Transfer
Sperm Injections, Intracytoplasmic - methods
Zygote - physiology
Zygotes
title Chromosome analysis of blastocysts derived from single pronuclear zygotes by array CGH and clinical outcomes by the transfer of single pronuclear zygotes
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