Phenotypic and genetic analysis of a girl with multiple congenital deformities due to 2p15-p16.1 microdeletion syndrome / 中华医学遗传学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To determine the origin of chromosomal aberration for a girl with mental retardation and multiple congenital deformities.</p><p><b>METHODS</b>The karotypes of the girl and her parents were analyzed with routine G-banding .Their genomic DNA was also analyzed with array comparative genomic hybridization (aCGH). Short tandem repeats (STR) were used to confirm the results of aCGH.</p><p><b>RESULTS</b>There were no karyotypic abnormality detected at cytogenetic level. aCGH identified a de novo 1.28 Mb deletion at 2p15-p16.1 in the girl. The results of the STR confirmed the deletion affected the maternal chromosome.</p><p><b>CONCLUSION</b>The de novo interstitial 2p15-p16.1 deletion may cause the mental retardation and multiple congenital deformities. chr260.5-61.5 Mb may be the minimal common region of 2p15-p16.1 microdeletion syndrome.</p>