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A rare microduplication in a familial case of annular pancreas and duodenal stenosis.
MedLine Citation:
PMID:  23163995     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND/PURPOSE: We describe a 3-day-old male infant that was operated on for annular pancreas causing duodenal stenosis. The family history revealed that the mother also underwent surgery as a neonate owing to duodenal stenosis with an annular pancreas. The aim of our study was to perform molecular investigations in this rare and familial congenital malformation.
METHODS: We performed high-resolution (180 K) array comparative genomic hybridization using the infant's DNA and multiplex ligation-dependent probe amplification (MLPA) using the parents' and the affected mother's siblings' and parents' DNA.
RESULTS: Array comparative genomic hybridization revealed previously unreported duplications on chromosome 6q24.2 and 17q22-q23.1, respectively, in the infant's DNA, and the latter duplication was also found in the healthy father using MLPA, whereas the affected mother carried the 6q24 duplication (0.7 Mb) containing parts of the utrophin gene. We further performed MLPA analysis of the 6q24 region and found that the clinically unaffected grandfather was a carrier of the microduplication, and so were 2 asymptomatic siblings of the affected mother.
CONCLUSIONS: The 6q24.2 mircoduplication of the utrophin gene is a potential risk factor for the development of annular pancreas, but further studies will clarify the exact role and if this is a true risk factor or a rare normal variant.
Authors:
Ellen Markljung; Tatjana Adamovic; Lisa Ortqvist; Tomas Wester; Agneta Nordenskjöld
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of pediatric surgery     Volume:  47     ISSN:  1531-5037     ISO Abbreviation:  J. Pediatr. Surg.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0052631     Medline TA:  J Pediatr Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2039-43     Citation Subset:  IM    
Copyright Information:
Copyright © 2012 Elsevier Inc. All rights reserved.
Affiliation:
Department of Women's and Children's Health, and Center of Molecular Medicine CMM02, Karolinska institutet, Karolinska University Hospital, Stockholm, Sweden.
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