[Application of chromosome microarray analysis for patients with skeletal anomalies and a normal karyotype]. 2016

Qiaoli Guo, and Fang Fu, and Ru Li, and Yongling Zhang, and Xin Yang, and Jin Han, and Min Pan, and Li Zhen, and Can Liao
Institute of Perinatology and Birth Health, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, Guangdong 510623, China. canliao@hotmail.com.

OBJECTIVE To analyze patients with skeletal anomalies (SA) but a normal karyotype using chromosome microarray analysis (CMA). METHODS From June 2012 to May 2015, 43 children found to have skeletal anomalies with or without other abnormalities were subjected to karyotyping analysis. For those with a normal karyotype, DNA was extracted and hybridized with Affymetrix CytoScan 750 kb arrays following the manufacturer's protocol. The results were analyzed with CHAS v2.0 software. RESULTS Two patients (4.65%) were detected with an abnormal karyotype. The remaining 41 patients with a normal karyotype were classified into 3 groups: isolated SA (n=17), SA with mental retardation (n=6), and SA with other structural anomalies (n=18). Clinically significant copy number variations (CNVs) were found in 21.95% (9/41) of the cases, which included 17.65% (3/17) with isolated SA, 33.33% (2/6) with SA and mental retardation, and 22.22% (4/18) of SA with other structural deformities. CONCLUSIONS Whole-genome CMA can detect clinically significant CNVs which may not be found by conventional karyotyping analysis and increase the detection rate by approximately 21.95%. It may be recommended for patients with SA but a normal karyotype.

UI MeSH Term Description Entries
D007223 Infant A child between 1 and 23 months of age. Infants
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D001842 Bone and Bones A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX. Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002675 Child, Preschool A child between the ages of 2 and 5. Children, Preschool,Preschool Child,Preschool Children
D002869 Chromosome Aberrations Abnormal number or structure of chromosomes. Chromosome aberrations may result in CHROMOSOME DISORDERS. Autosome Abnormalities,Cytogenetic Aberrations,Abnormalities, Autosome,Abnormalities, Chromosomal,Abnormalities, Chromosome,Chromosomal Aberrations,Chromosome Abnormalities,Cytogenetic Abnormalities,Aberration, Chromosomal,Aberration, Chromosome,Aberration, Cytogenetic,Aberrations, Chromosomal,Aberrations, Chromosome,Aberrations, Cytogenetic,Abnormalities, Cytogenetic,Abnormality, Autosome,Abnormality, Chromosomal,Abnormality, Chromosome,Abnormality, Cytogenetic,Autosome Abnormality,Chromosomal Aberration,Chromosomal Abnormalities,Chromosomal Abnormality,Chromosome Aberration,Chromosome Abnormality,Cytogenetic Aberration,Cytogenetic Abnormality
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D056915 DNA Copy Number Variations Stretches of genomic DNA that exist in different multiples between individuals. Many copy number variations have been associated with susceptibility or resistance to disease. Copy Number Polymorphism,DNA Copy Number Variant,Copy Number Changes, DNA,Copy Number Polymorphisms,Copy Number Variants, DNA,Copy Number Variation, DNA,DNA Copy Number Change,DNA Copy Number Changes,DNA Copy Number Polymorphism,DNA Copy Number Polymorphisms,DNA Copy Number Variants,DNA Copy Number Variation,Polymorphism, Copy Number,Polymorphisms, Copy Number
D059785 Karyotype The full set of CHROMOSOMES presented as a systematized array of METAPHASE chromosomes from a photomicrograph of a single CELL NUCLEUS arranged in pairs in descending order of size and according to the position of the CENTROMERE. (From Stedman, 25th ed) Karyotypes
D020411 Oligonucleotide Array Sequence Analysis Hybridization of a nucleic acid sample to a very large set of OLIGONUCLEOTIDE PROBES, which have been attached individually in columns and rows to a solid support, to determine a BASE SEQUENCE, or to detect variations in a gene sequence, GENE EXPRESSION, or for GENE MAPPING. DNA Microarrays,Gene Expression Microarray Analysis,Oligonucleotide Arrays,cDNA Microarrays,DNA Arrays,DNA Chips,DNA Microchips,Gene Chips,Oligodeoxyribonucleotide Array Sequence Analysis,Oligonucleotide Microarrays,Sequence Analysis, Oligonucleotide Array,cDNA Arrays,Array, DNA,Array, Oligonucleotide,Array, cDNA,Arrays, DNA,Arrays, Oligonucleotide,Arrays, cDNA,Chip, DNA,Chip, Gene,Chips, DNA,Chips, Gene,DNA Array,DNA Chip,DNA Microarray,DNA Microchip,Gene Chip,Microarray, DNA,Microarray, Oligonucleotide,Microarray, cDNA,Microarrays, DNA,Microarrays, Oligonucleotide,Microarrays, cDNA,Microchip, DNA,Microchips, DNA,Oligonucleotide Array,Oligonucleotide Microarray,cDNA Array,cDNA Microarray

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