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Clinical and Cytogenetic Analysis of Children with Maternal Chromosomal Balanced Translocation  

Lim, Han Hyuk (Department of Pediatrics, College of Medicine, Chungnam National University)
Jeong, Hee Jeong (Department of Pediatrics, College of Medicine, Chungnam National University)
Park, Kyung Duk (Department of Pediatrics, College of Medicine, Chungnam National University)
Kim, Sook Ja (South Korea and Korea Genetic Research Center)
Publication Information
Clinical and Experimental Pediatrics / v.48, no.7, 2005 , pp. 701-705 More about this Journal
Abstract
Purpose : Parents' genetic information plays an important role in their children's genetic expression. Human chromosome has 23-paternal chromosomes and 23-maternal chromosomes. Parental chromosomal translocation can induce clinical problems in their children because of imbalance in genetic information. We intent to analyze the cytogenentic and clinical features about children with maternal balanced translocation between chromosome 15 and 18. Methods : We detected by one family's FISH study of chromosome 15. We have evaluated children born to clinically normal parents about peripheral bood analysis, endocrine, metabolic, radiologic study, electroencephalogram and social & intelligence scale. and We analysis their clinical manifestation by hospital records. Results : Patient's father and elder sister are normal clinically and genetically. Her mother's chromosome show balanced translocation, 46, XX, t(15;18)(p11.2;p11.3). One child has 46, XX, der(18) t(15;18)(p11.2;p11.3), mental retardation, growth retardation, speech & social developmental delay, recurrent infection and mild mitochondria dysfunction. Her young brother has 46, XY, der(15) t(15;18) (p11.2;p11.3), mental retardation, aggressive behavior, obesity and speech developmental delay. Conclusion : In this study we observed the children with developmental delay, dysmorphic facial features, mental retardation, growth retardation associated with growth hormone deficiency and aggressive behavior due to unbalanced translocation between chromosome 15 and 18.
Keywords
Balanced translocation; Chromosome 15; Chromosome 18;
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