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2002•American Journal of Medical GeneticsRequires access

Duplication of chromosome region (16)(p11.2 → p12.1) in a mother and daughter with mild mental retardation

J.J.M. Engelen, Christine de Die‐Smulders, R Dirckx, W.M.A. Verhoeven, S. Tuinier, Leopold Curfs, A.J.H. Hamers

Open publisher page 18 citations

Abstract

We report a 40-year-old female with mild mental retardation and behavior problems and her 6-year-old daughter. Chromosome analysis showed that both patients had a proximal duplication in the short arm of chromosome 16. The aberration was characterized further with band-specific probes, resulting in a 46,XX,dir dup(16)(pter --> p11.2::p12.1 --> qter) karyotype. The clinical and cytogenetical findings are compared to other patients with partial trisomy 16p reported in the literature.

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What this paper is about

We report a 40-year-old female with mild mental retardation and behavior problems and her 6-year-old daughter. Chromosome analysis showed that both patients had a proximal duplication in the short arm of chromosome 16. The aberration was characterized further with band-specific probes, resulting in a 46,XX,dir dup(16)(pter --> p11.2::p12.1 --> qter) karyotype. The clinical and cytogenetical findings are compared to other patients with partial trisomy 16p reported in the literature.

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Available abstract

We report a 40-year-old female with mild mental retardation and behavior problems and her 6-year-old daughter. Chromosome analysis showed that both patients had a proximal duplication in the short arm of chromosome 16. The aberration was characterized further with band-specific probes, resulting in a 46,XX,dir dup(16)(pter --> p11.2::p12.1 --> qter) karyotype. The clinical and cytogenetical findings are compared to other patients with partial trisomy 16p reported in the literature.

Key concepts: dup, Daughter, Gene duplication, Trisomy, Karyotype, Chromosome, Genetics, Chromosome analysis

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