Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5904976 | European Journal of Medical Genetics | 2012 | 13 Pages |
Abstract
Genome-wide array studies are now routinely being used in the evaluation of patients with cognitive disorders (CD) and/or congenital anomalies (CA). Therefore, inevitably each clinician is confronted with the challenging task of the interpretation of copy number variations detected by genome-wide array platforms in a diagnostic setting. Clinical interpretation of autosomal copy number variations is already challenging, but assessment of the clinical relevance of copy number variations of the X-chromosome is even more complex. This study provides an overview of the X-Chromosome copy number variations that we have identified by genome-wide array analysis in a large cohort of 4407 male and female patients. We have made an interpretation of the clinical relevance of each of these copy number variations based on well-defined criteria and previous reports in literature and databases. The prevalence of X-chromosome copy number variations in this cohort was 57/4407 (â¼1.3%), of which 15 (0.3%) were interpreted as (likely) pathogenic.
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Authors
Marjolein H. Willemsen, Nicole de Leeuw, Arjan P.M. de Brouwer, Rolph Pfundt, Jayne Y. Hehir-Kwa, Helger G. Yntema, Willy M. Nillesen, Bert B.A. de Vries, Hans van Bokhoven, Tjitske Kleefstra,