Tourette disorder spectrum maps to chromosome 14q31.1 in an Italian kindred.

ABSTRACT: Tourette syndrome (TS) is a frequent neuropsychiatric disorder of unknown etiology. A number of chromosomal regions have been nominated as TS loci in linkage studies, but confirmation has met with limited success and causative mutations have not yet been definitely identified. Furthermore, TS, chronic tics, and obsessive-compulsive disorder (OCD) occur at increased frequencies among TS relatives, supporting the view that these phenotypes represent parts of the same genetically determined spectrum. We ascertained a four-generation Italian kindred segregating TS, chronic multiple motor tics (CMT), and OCD, and we performed a ten-centimorgan (cM) genome-wide linkage scan in order to map the underlying genetic defect. Suggestive linkage to chromosome 14q31.1 (multipoint LOD=2.4) was detected b

SUBMITTER: Breedveld GJ 

PROVIDER: S-EPMC2956568 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature