A Retrospective Study of Balanced Chromosomal Translocations in a Turkish Population

The balanced translocations are accepted as chromosomal rearrangements that do not generally reflect any phenotypic evidence. However, phenotypical influences can be seen in children of balanced translocation carriers due to the formation of partial monosomy and partial trisomy of any related chromo...

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Bibliographic Details
Published inInternational journal of human genetics Vol. 12; no. 4; pp. 319 - 323
Main Authors Karakus, N., Kara, N., Tural, S., Kocak, I., Elbistan, M.
Format Journal Article
LanguageEnglish
Published Routledge 01.12.2012
Subjects
Balanced Translocation
Chromosomal Rearrangements
Cytogenetic Analyses
Karyotyping
Phenotypic Features
Recurrent Miscarriage
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Summary:The balanced translocations are accepted as chromosomal rearrangements that do not generally reflect any phenotypic evidence. However, phenotypical influences can be seen in children of balanced translocation carriers due to the formation of partial monosomy and partial trisomy of any related chromosome. In this study, 25 cases that detected to have balanced translocation by cytogenetic analyses were evaluated with regard to their phenotypic features. Karyotype analyses of cases were taken out by using conventional peripheral blood culture method. It is estimated that 14 (56%) of these balanced translocation carriers had recurrent miscarriage, 5 (20%) had children with mental retardation, 3 (16%) had infertility, 2 (8%) had amenorrhea and 1 (4%) had mental retardation. When the cases were examined, it is understood that the increase in the frequency of miscarriage is the most frequent phenotypic feature in balanced translocation carriers as a result of the formation of unbalanced gametes.
ISSN:0972-3757
2456-6330
DOI:10.1080/09723757.2012.11886186