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Evaluating Chromosomal Mosaicism in Prenatal Diagnosis: The Complementary Roles of Chromosomal Microarray Analysis and Karyotyping.
J Clin Lab Anal
January 2025
Department of Urology, Zhongshan People's Hospital, ZhongShan, China.
Objective: To explore the impact of in vitro cell subculture on prenatal diagnostic sample results and compare the efficacy of conventional karyotyping and chromosomal microarray analysis (CMA) in detecting chromosome mosaicism.
Methods: We conducted a retrospective analysis of G-banding karyotyping and CMA data from 2007 amniocentesis cases to investigate chromosome mosaicism.
Results: Chromosome mosaicism was detected in 1.
Time-lapse analysis of embryos classified as euploid, mosaic, and aneuploid after embryonic trophectoderm biopsy.
J Assist Reprod Genet
January 2025
Reproductive Medicine Department, Villa Mafalda, Via Monte Delle Gioie 5, 00199, Rome, Italy.
Purpose: Analyze morphokinetic, morphology, and KIDscore™Day5 in different PGT-A classes, focusing on putative mosaicism level and type.
Methods: The single-center retrospective study analyzed 832 embryoscope-cultured blastocysts from cycles with at least one putative mosaic, conducted from 2020 to 2022. A P-value < 0.
Embryo Mosaicism Rate in National Referral Hospital of Indonesia Detected Using Next-Generation Sequencing: A Retrospective Study.
Int J Fertil Steril
January 2025
Reproductive Immunoendocrinology Division, Department of Obstetrics and Gynecology, Faculty of Medicine Universitas Indonesia - dr. Cipto Mangunkusumo General Hospital, Jakarta, Indonesia.
Background: Chromosomal mosaicism, a phenomenon observed in a minority of embryos, showcases its prevalence and inherent unpredictability, leading to variations in embryo mosaic rates across different centers. This research endeavors to assess the prevalence of mosaicism and its characteristics within the scope of our preimplantation genetic testing-A (PGT-A) services in Indonesia. Specifically focusing on our center's experience since 2020, this study aims to elucidate mosaic rates among embryos in our care.
View Article and Find Full Text PDFTriple mosaic variants of PURA in a patient with multiple congenital anomalies.
J Hum Genet
January 2025
Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan.
In monogenic diseases, double mosaic variants of the same gene have rarely been identified. Here, we report the case of triple mosaic variants in PURA, a gene responsible for a neurodevelopmental syndrome (OMIM# 616158). Whole-exome sequencing identified three somatic PURA variants in our case with a similar neurodevelopmental syndrome: NM_005859.
View Article and Find Full Text PDFGenomic and phenotypic correlates of mosaic loss of chromosome Y in blood.
Am J Hum Genet
January 2025
Division of Biostatistics, Data Science Institute, Medical College of Wisconsin, Milwaukee, WI, USA; Cancer Center, Medical College of Wisconsin, Milwaukee, WI, USA. Electronic address:
Mosaic loss of Y (mLOY) is the most common somatic chromosomal alteration detected in human blood. The presence of mLOY is associated with altered blood cell counts and increased risk of Alzheimer disease, solid tumors, and other age-related diseases. We sought to gain a better understanding of genetic drivers and associated phenotypes of mLOY through analyses of whole-genome sequencing (WGS) of a large set of genetically diverse males from the Trans-Omics for Precision Medicine (TOPMed) program.
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