Detection for trinucleotide repeats in myotonic dystrophy type 1].

Department of Neurology, Xuanwu Hospital, Capital University of Medical Sciences, Beijing 100053, P. R. China. dayuwei100@hotmail.com.

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics 2012 Feb

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To establish an efficient method which can be easily used for detecting CTG trinucleotide repeats in myotonic dystrophy type 1 (DM1). Tri-primer polymerase chain reaction (TP-PCR) combined with electropherogram was used to detect CTG repeats in the 3'-untranslated region of DMPK gene. Twenty non-related DM1 patients and 24 healthy controls were selected. All patients were found to have carried pathologic alleles containing more than 100 CTG repeats, while the healthy controls have carried 5-37 CTG repeats. TP-PCR combined with electropherograms may provide a highly sensitive, specific and accurate method which is less time-consuming and easier to perform for the detection of pathologic alleles in DM1 patients.

Citation

Yun Li, Yu-wei Da. Detection for trinucleotide repeats in myotonic dystrophy type 1]. Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics. 2012 Feb;29(1):16-8