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Neurosci Lett. 2012 May 23;517(1):18-20. doi: 10.1016/j.neulet.2012.03.097. Epub 2012 Apr 9.

Analysis of the MRPL3, DNAJC13 and OFCC1 variants in Chinese Han patients with TS-CTD.

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Center for Experimental Medicine and Department of Neurology, the Third Xiangya Hospital, Central South University, Changsha, China.


Tourette syndrome/chronic tic phenotype (TS-CTD) is a neurological disorder manifested particularly by motor and vocal tics and associated with a variety of behavioral abnormalities. Recently, the mitochondrial ribosomal protein L3 gene (MRPL3) S75N, the DnaJ (Hsp40) homolog subfamily C member 13 gene (DNAJC13) A2057S, the orofacial cleft 1 candidate 1 gene (OFCC1) R129G and c.-5A>G variants are reported to be associated with Tourette syndrome/chronic tic phenotype (TS-CTD) in patients of European ancestry. To evaluate whether these variants are associated with TS-CTD in Chinese Han patients, we screened 132 Chinese Han patients from Mainland China. None of the 132 samples from patients with TS-CTD showed the MRPL3 S75N, DNAJC13 A2057S, OFCC1 R129G and c.-5A>G variants, and these variants probably are a rare cause of TS-CTD in a Chinese Han ethnic group. Genetic heterogeneity of TS should be considered and tests designed to detect these variants in Chinese Han ethnic group probably will not have a diagnostic utility in clinical practice.

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