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Genetic Susceptibility and Neurotransmitters in Tourette Syndrome
- Source :
- ADVANCES IN THE NEUROCHEMISTRY AND NEUROPHARMACOLOGY OF TOURETTE SYNDROME, 155-177, STARTPAGE=155;ENDPAGE=177;TITLE=ADVANCES IN THE NEUROCHEMISTRY AND NEUROPHARMACOLOGY OF TOURETTE SYNDROME
- Publication Year :
- 2013
- Publisher :
- Elsevier, 2013.
-
Abstract
- Family studies have consistently shown that Tourette syndrome (TS) is a familial disorder and twin studies have clearly indicated a genetic contribution in the etiology of TS. Whereas early segregation studies of TS suggested a single-gene autosomal dominant disorder, later studies have pointed to more complex models including additive and multifactorial inheritance and likely interaction with genetic factors. While the exact cellular and molecular base of TS is as yet elusive, neuroanatomical and neurophysiological studies have pointed to the involvement of cortico-striato-thalamocortical circuits and abnormalities in dopamine, glutamate, gamma-aminobutyric acid, and serotonin neurotransmitter systems, with the most consistent evidence being available for involvement of dopamine-related abnormalities, that is, a reduction in tonic extracellular dopamine levels along with hyperresponsive spike-dependent dopamine release, following stimulation. Genetic and gene expression findings are very much supportive of involvement of these neurotransmitter systems. Moreover, intriguingly, genetic work on a two-generation pedigree has opened new research pointing to a role for histamine, a so far rather neglected neurotransmitter, with the potential of the development of new treatment options. Future studies should be aimed at directly linking neurotransmitter-related genetic and gene expression findings to imaging studies (imaging genetics), which enables a better understanding of the pathways and mechanisms through which the dynamic interplay of genes, brain, and environment shapes the TS phenotype.
- Subjects :
- Imaging genetics
TRANSMISSION-DISEQUILIBRIUM
AUTISM SPECTRUM DISORDERS
Tourette syndrome
Article
chemistry.chemical_compound
Dopamine
medicine
Genetic predisposition
Humans
Attention deficit hyperactivity disorder
Genetic Predisposition to Disease
Neurotransmitter
HISTAMINE H-3
Genetics
Neurotransmitter Agents
SEROTONIN TRANSPORTER GENE
ATTENTION-DEFICIT/HYPERACTIVITY DISORDER
TIC SEVERITY
OBSESSIVE-COMPULSIVE DISORDER
medicine.disease
chemistry
NEUROPSYCHIATRIC DISORDERS
Multifactorial Inheritance
TRYPTOPHAN HYDROXYLASE-2 GENE
DOPAMINE-D4 RECEPTOR LOCUS
Psychology
Neuroscience
Tourette Syndrome
medicine.drug
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- ADVANCES IN THE NEUROCHEMISTRY AND NEUROPHARMACOLOGY OF TOURETTE SYNDROME, 155-177, STARTPAGE=155;ENDPAGE=177;TITLE=ADVANCES IN THE NEUROCHEMISTRY AND NEUROPHARMACOLOGY OF TOURETTE SYNDROME
- Accession number :
- edsair.doi.dedup.....12cd0f5a545b2a64371369a0d4075c0b