Array-CGH study of partial trisomy 9p without mental retardation

2011 ◽  
Vol 155 (7) ◽  
pp. 1735-1739 ◽  
Author(s):  
Inesse Ben Abdallah Bouhjar ◽  
Hanane Hannachi ◽  
Soumaya Mougou Zerelli ◽  
Audrey Labalme ◽  
Abir Gmidène ◽  
...  
Keyword(s):  
Mental Retardation ◽  
Array Cgh ◽  
Partial Trisomy ◽  
Trisomy 9P

Partial trisomy 4q and monosomy 9p in a girl with severe mental retardation, multiple anomalies and congenital hypoglycaemia

2007 ◽  
Vol 82 (3) ◽  
pp. 239-241
Author(s):  
Anna Lauda-Świeciak ◽  
Olga Haus ◽  
Danuta Kurylak ◽  
Ewa Duszeńko ◽  
Krystyna Soszyńska
Keyword(s):  
Mental Retardation ◽  
Partial Trisomy ◽  
Severe Mental Retardation

scholarly journals Familial partial trisomy 8p without dysmorphic features and only mild mental retardation

1995 ◽  
Vol 32 (10) ◽  
pp. 792-795 ◽  
Author(s):  
J J M Engelen ◽  
C E M d. Die-Smulders ◽  
J M J Sijstermans ◽  
L E C Meers ◽  
J C M Albrechts ◽  
...  
Keyword(s):  
Mental Retardation ◽  
Partial Trisomy ◽  
Mild Mental Retardation ◽  
Dysmorphic Features

Molecular Delineation of Partial Trisomy 14q and Partial Trisomy 12p in a Patient with Dysmorphic Features, Heart Defect and Developmental Delay

2015 ◽  
Vol 145 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Divya Bose ◽  
Venkatesh Krishnamurthy ◽  
K.S. Venkatesh ◽  
Mohamed Aiyaz ◽  
Mitesh Shetty ◽  
...  
Keyword(s):  
Developmental Delay ◽  
Congenital Heart ◽  
Array Cgh ◽  
Partial Trisomy ◽  
Oligonucleotide Array ◽  
Global Developmental Delay ◽  
Potential Candidate ◽  
Balanced Translocation ◽  
Dysmorphic Features ◽  
Novel Association

This study describes a molecular analysis of partial trisomy 14q and partial trisomy 12p in a 5-year-old male child presenting with dysmorphic features, congenital heart disease and global developmental delay. Chromosomal analysis of the patient with GTG bands revealed a 47,XY,+der(14)t(12;14)(p13;q22)mat karyotype; the mother's karyotype was 46,XX,t(12;14)(p13;q22). Further, oligonucleotide array- CGH studies revealed an amplification of 32.3 Mb in the 14q11.1q22.1 region, substantiating partial trisomy 14q and additionally displaying an amplification of ∼1 Mb in the 12p13.3pter region for partial trisomy 12p. This is the first study to demonstrate a novel association of partial trisomies of 14q and 12p due to a 3:1 segregation of a maternal balanced translocation involving chromosomes 12 and 14. Gene ontology studies indicated 5 potential candidate genes in the amplified regions for the observed congenital anomalies.

Partial trisomy 1q41-qter and partial trisomy 9pter-9q21.32 in a newborn infant: An array CGH analysis and review

2013 ◽  
Vol 164 (2) ◽  
pp. 490-494 ◽  
Author(s):  
Ibrahim Akalin ◽  
Senol Bozdag ◽  
Malte Spielmann ◽  
Sarenur Yilmaz Basaran ◽  
Indrajit Nanda ◽  
...  
Keyword(s):  
Newborn Infant ◽  
Array Cgh ◽  
Partial Trisomy

scholarly journals Development of a Focused Oligonucleotide-Array Comparative Genomic Hybridization Chip for Clinical Diagnosis of Genomic Imbalance

2007 ◽  
Vol 53 (12) ◽  
pp. 2051-2059 ◽  
Author(s):  
Yiping Shen ◽  
David T Miller ◽  
Sau Wai Cheung ◽  
Va Lip ◽  
Xiaoming Sheng ◽  
...  
Keyword(s):  
Mental Retardation ◽  
Comparative Genomic Hybridization ◽  
Array Comparative Genomic Hybridization ◽  
Developmental Disorders ◽  
Array Cgh ◽  
Clinical Laboratory ◽  
Oligonucleotide Array ◽  
Comparative Genomic ◽  
Genomic Hybridization ◽  
Genomic Imbalance

Abstract Background: Submicroscopic genomic imbalance underlies well-defined microdeletion and microduplication syndromes and contributes to general developmental disorders such as mental retardation and autism. Array comparative genomic hybridization (CGH) complements routine cytogenetic methods such as karyotyping and fluorescence in situ hybridization (FISH) for the detection of genomic imbalance. Oligonucleotide arrays in particular offer advantages in ease of manufacturing, but standard arrays for single-nucleotide polymorphism genotyping or linkage analysis offer variable coverage in clinically relevant regions. We report the design and validation of a focused oligonucleotide-array CGH assay for clinical laboratory diagnosis of genomic imbalance. Methods: We selected >10 000 60-mer oligonucleotide features from Agilent’s eArray probe library to interrogate all subtelomeric and pericentromeric regions and 95 additional clinically relevant regions for a total of 179 loci. Sensitivity and specificity were measured for 105 patient samples, including 51 with known genomic-imbalance events, as detected by bacterial artificial chromosome–based array CGH, FISH, or multiplex ligation-dependent probe amplification. Results: Focused array CGH detected all known regions of genomic imbalance in 51 validation samples with 100% concordance and an excellent signal-to-noise ratio. The mean SD among log2 ratios of all noncontrol features without copy number alteration was 0.062 (median, 0.055). Clinical testing of another 211 samples from individuals with developmental delay, unexplained mental retardation, dysmorphic features, or multiple congenital anomalies revealed genomic imbalance in 25 samples (11.9%). Conclusions: This focused oligonucleotide-array CGH assay, a flexible, robust method for clinically diagnosing genetic disorders associated with genomic imbalance, offers appreciable advantages over currently available platforms.

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