PMID- 29034762 OWN - NLM STAT- MEDLINE DCOM- 20190207 LR - 20190215 IS - 1476-4954 (Electronic) IS - 1476-4954 (Linking) VI - 32 IP - 1 DP - 2019 Jan TI - Exploring the cause of early miscarriage with SNP-array analysis and karyotyping. PG - 1-10 LID - 10.1080/14767058.2017.1367379 [doi] AB - OBJECTIVE: The aim of this study is to explore the cause of miscarriage, providing risk assessment to guide the next pregnancy. METHODS: Four hundred eighty-four products-of-conception (POC) samples were analyzed by single nucleotide polymorphism (SNP) array, and peripheral blood samples of couples were collected for karyotyping or fluorescence in situ hybridization (FISH) analysis. RESULTS: Four hundred sixty-eight of the 484 (96.7%) fresh POC samples were successfully analyzed using SNP-array. The rate of clinically significant chromosomal abnormalities were 58.3% (274/468), in which rates of aneuploidy, polyploidy, partial aneuploidy, uniparental isodisomy (isoUPD), and pathogenic microdeletion/microduplication were 43.4% (203/468), 8.8% (41/468), 3.6% (17/468), 1.9% (9/48), and 0.9% (4/468), respectively. The percentage of embryonic chromosomal abnormalities significantly increased with maternal age of patients older than 35 years old. Among 468 couples, 12 major chromosomal rearrangements were detected by G-banding, including nine reciprocal translocations, two Robertsonian translocations, and one superfemale. CONCLUSIONS: Chromosome abnormality is the main causes of early miscarriage, and aneuploidies are the most common type of chromosomal abnormalities. Application of SNP array and karyotyping in early miscarriage can provide more genetic information about miscarriage, providing risk assessment to guide the next pregnancy. FAU - Qu, Suzhen AU - Qu S AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Wang, Li AU - Wang L AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Cai, Aojie AU - Cai A AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Cui, Siying AU - Cui S AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Bai, Nan AU - Bai N AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Liu, Ning AU - Liu N AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. FAU - Kong, Xiangdong AU - Kong X AD - a Center for Genetics and Prenatal Diagnosis , the First Affiliated Hospital of Zhengzhou University , Zhengzhou , Henan , China. LA - eng PT - Journal Article DEP - 20171016 PL - England TA - J Matern Fetal Neonatal Med JT - The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians JID - 101136916 SB - IM MH - Abortion, Spontaneous/*genetics MH - Adult MH - Chromosome Aberrations/*statistics & numerical data MH - Female MH - Gestational Age MH - Humans MH - Karyotyping MH - Maternal Age MH - Middle Aged MH - Polymorphism, Single Nucleotide MH - Pregnancy MH - Young Adult OTO - NOTNLM OT - Aneuploidy OT - SNP-array OT - chromosome abnormality OT - early miscarriage OT - karyotyping OT - products of conception EDAT- 2017/10/17 06:00 MHDA- 2019/02/08 06:00 CRDT- 2017/10/17 06:00 PHST- 2017/10/17 06:00 [pubmed] PHST- 2019/02/08 06:00 [medline] PHST- 2017/10/17 06:00 [entrez] AID - 10.1080/14767058.2017.1367379 [doi] PST - ppublish SO - J Matern Fetal Neonatal Med. 2019 Jan;32(1):1-10. doi: 10.1080/14767058.2017.1367379. Epub 2017 Oct 16.