CTG repeat polymorphism in DMPK gene in healthy Yugoslav population

Acta Neurologica Scandinavica
Biljana CuljkovicStanka Romac

Abstract

Myotonic dystrophy type 1 (DM1) is caused by large expansions of cytosine-thymine-guanine (CTG)-repeats in myotonic dystrophy protein kinase (DMPK)-gene. This gene is highly polymorphic in healthy individuals. It has been proposed that expanded alleles originated from the group of large sized normal alleles. If this is correct, one should expect a positive correlation between the frequency of large sized normal alleles and a prevalence of this disorder in a population. In this paper we determined the distribution of alleles of DMPK gene in healthy Yugoslav population. A sample of 235 healthy individuals of Yugoslav origin have been genotyped for the alleles of DMPK locus. We found 22 different alleles, ranging in size from 5 to 29 repeats. Among 470 chromosomes studied, 41 chromosomes had more than 18 repeats (8.72%). Relatively high frequency of large sized normal alleles found in our population, suggest that prevalence of DM1 in Yugoslavia should not be different from the prevalence in other European populations.

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Citations

Apr 9, 2013·Neuromuscular Disorders : NMD·Jan RadvanszkyLudevit Kadasi
May 26, 2006·European Journal of Neurology : the Official Journal of the European Federation of Neurological Societies·J MladenovicS Apostolski
May 26, 2005·Vojnosanitetski pregled. Military-medical and pharmaceutical review·Jelena MladenovićSlobodan Apostolski
Mar 3, 2005·Acta Neurologica Scandinavica·D KrndijaS Romac
Sep 19, 2008·Acta Neurologica Scandinavica·F AmenabarL Cifuentes
May 23, 2006·Clinical Neurology and Neurosurgery·Jelena MladenovicSlobodan Apostolski
Jan 8, 2009·The Korean journal of laboratory medicine·So Yeon KimSung Sup Park
Jun 26, 2008·The Canadian Journal of Neurological Sciences. Le Journal Canadien Des Sciences Neurologiques·Bahareh ShojasaffarHossein Najmabadi

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