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Genetic
Recent research by Doctor Matthew State at Yale University suggests that Tourette Syndrome may be caused by an inversion defect on chromosome 13 of gene SLITRK1. This means that Tourette Syndrome can be inherited or caused by mutation. However, this research appears to apply to a very small minority of cases (1 - 2 %), and studies to locate all of the genes implicated in Tourette's syndrome are ongoing.
Other genetic studies indicate tic disorders, including TS, are inherited as a dominant gene(s) that may produce varying symptoms in different family members. A person with TS has about a 50% chance of passing the gene(s) to one of his/her children. However, the gene(s) may express as TS, as a milder tic disorder, or as obsessive compulsive symptoms with no tics at all. It is known that a higher than usual incidence of milder tic disorders and obsessive compulsive behaviors are more common in the families of TS patients. The sex of the child also influences the expression of the gene(s). The chance that the child of a person with TS will have the disorder is at least three times higher for a son than for a daughter. Yet only a minority of the children who inherit the gene(s) will have symptoms severe enough to ever require medical attention. In some cases, TS may not be inherited; these cases are identified as "sporadic" TS because a genetic link is missing.
AF Sitemap
- Education Topics
- Achievement Gap
- Alternative Education
- Assessment & Evaluation
- Educational Leadership
- Educational Philosophy
- Educational Research
- Educational Technology
- Educational Videos
- Education Economics
- Education Environment
- Education Issues
- Education Policy
- Education Psychology
- Education Reform
- Education Theory
- Education Worldwide
- Federal Education Legislation
- Homeless Education
- Homeschooling in the United States
- Migrant Education
- Neglected/Deliquent Students
- Pedagogy
- Sociology of Education
- Special Needs
- National Directories
- After School Programs
- Alternative Schools
- The Arts
- At-Risk Students
- Camps
- Camp Services
- Colleges & Universities
- Counties
- Driving Schools
- Educational Businesses
- Financial Aid
- Higher Education
- International Programs
- Jewish Community Centers
- K-12 Schools
- Language Studies
- Libraries
- Organizations
- Preschools
- Professional Development
- Prom Services
- School Assemblies
- School Districts
- School Field Trips
- School Health
- School Supplies
- School Travel
- School Vendors
- Schools Worldwide
- Special Education
- Special Needs
- Study Abroad
- Teaching Abroad
- Volunteer Programs
- Youth Sports
- For Schools
- Academic Standards
- Assembly Programs
- Blue Ribbon Schools Program
- Educational Accreditation
- Educational Television Channels
- Education in the United States
- History of Education in the United States
- Reading Education in the U.S.
- School Grades
- School Meal Programs
- School Types
- School Uniforms
- Special Education in the United States
- Systems of Formal Education
- U.S. Education Legislation
- For Teachers
- Academic Dishonesty
- Childcare State Licensing Requirements
- Classroom Management
- Education Subjects
- Educational Videos
- Interdisciplinary Teaching
- Job and Interview Tips
- Lesson Plans | Grades
- Professional Development
- State Curriculum Standards
- Substitute Teaching
- Teacher Salary
- Teacher Training Programs
- Teaching Methods
- Training and Certification
- For Students
- Academic Competitions
- Admissions Testing
- At-Risk Students
- Career Planning
- College Admissions
- Drivers License
- Educational Programs
- Educational Television
- Educational Videos
- High School Dropouts
- Higher Education
- School Health
- Senior Proms
- Sex Education
- Standardized Testing
- Student Financial Aid
- Student Television Stations
- Summer Learning Loss