Screening for Cytogenetic and Molecular Chromosome Rearrangements in Tunisian Children With Conotruncal Heart Defects
نویسندگان
چکیده
منابع مشابه
Subtelomeric chromosome rearrangements in children with idiopathic mental retardation: applicability of three molecular-cytogenetic methods.
AIM To identify cryptic subtelomeric rearrangement, a possible cause of idiopathic mental retardation by means of multiprobe telomere fluorescent in situ hybridization (T-FISH). METHODS Hundred patients (median age 3.0 years) with mental retardation and dysmorphic features were screened using specific T-FISH probes. Multiplex ligation-dependent probe amplification and comparative genomic hybr...
متن کاملChromosome 10p13-14 and 22q11 deletion screening in 100 patients with isolated and syndromic conotruncal heart defects.
Heart defects are among the most common congenital anomalies, occurring in approximately 1% of newborn populations. Conotruncal heart defects (CTHD), which account for 50-60% of all congenital heart malformations, are known to have a strong genetic component. They occur either as an isolated malformation or in association with extracardiac anomalies. In particular, CTHD constitute a cardinal co...
متن کاملGuidelines for 22q11 deletion screening of patients with conotruncal defects.
Goldmuntz et al. (1) have reported the frequency of 22q11 deletions in a prospectively ascertained sample of 251 patients with conotruncal defects. Deletions were found in 17.9% of the patients, including 50% with interrupted aortic arch (IAA), 34.3% with truncus arteriosus (TA), and 15.9% with tetralogy of Fallot (TOF). Although this study was designed to determine the frequency of deletions i...
متن کاملMolecular cytogenetic characterization of acute myeloid leukemia and myelodysplastic syndromes with multiple chromosome rearrangements.
BACKGROUND AND OBJECTIVES Multiple chromosome rearrangements (MCRs) are found in 5-10% of newly diagnosed patients with acute myeloid leukemia (AML) and 15-30% of patients with myelodysplastic syndromes (MDS). However, the initial causes of MCRs and the molecular mechanisms involved are largely unresolved. Nor are the karyotypic patterns well studied, mainly because of the difficulties of obtai...
متن کاملInvestigation of Copy Number Variation in Children with Conotruncal Heart Defects
BACKGROUND Congenital heart defects (CHD) are the most prevalent group of structural abnormalities at birth and one of the main causes of infant morbidity and mortality. Studies have shown a contribution of the copy number variation in the genesis of cardiac malformations. OBJECTIVES Investigate gene copy number variation (CNV) in children with conotruncal heart defect. METHODS Multiplex li...
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ژورنال
عنوان ژورنال: Laboratory Medicine
سال: 2009
ISSN: 0007-5027,1943-7730
DOI: 10.1309/lm1j74krdufwjzwk