Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Nat Rev Neurol. 2012 Mar 13;8(4):203-13. doi: 10.1038/nrneurol.2012.26.

The genetics of Tourette syndrome.

Author information

  • 1Center for Experimental Medicine, the Third Xiangya Hospital, Central South University, 138 Tongzipo Road, Changsha, Hunan 410013, China. hdeng008@yahoo.com

Abstract

Tourette syndrome is a complex neurological disorder that usually becomes evident between 4 and 18 years of age. The disorder is characterized by chronic motor and phonic tics, often with a variety of behavioural comorbidities; in particular, attention-deficit hyperactivity disorder, obsessive-compulsive disorder, and impulse control disorder. The cause of Tourette syndrome is poorly understood. Although environmental factors are proposed to have a role, genetic factors are thought to be the primary contributors to the pathogenesis of this disorder. However, identification of the causative gene mutations or risk alleles has proved to be difficult. Early studies on the genetics of Tourette syndrome focused on multigenerational lineages and suggested Mendelian inheritance, but subsequent segregation analyses point to a more-complex inheritance pattern. A monogenic inheritance model has been proposed following the identification of rare genetic mutations associated with the Tourette syndrome phenotype. Although no specific mutations have found to directly cause Tourette syndrome, genetic findings may enable identification of the affected pathways, and could lead to the development of new treatment strategies. In this Review, we provide an overview of the genetics of Tourette syndrome and highlight how this knowledge has improved our understanding of the possible pathogenic mechanisms of this neurological disorder.

PMID:
22410579
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Nature Publishing Group
    Loading ...
    Write to the Help Desk