Genetic Association Study Between Single Nucleotide Polymorphisms (SNPs) and Cognitive Performance in Young Bipolar Type I Patients: LICAVALGENE (Licavalgene)
This is a genetic association study of cognitive impairment in young bipolar disease type I patients without medications in mania, depression, hypomania or mixed states.
|Study Design:||Observational Model: Case Control
Time Perspective: Prospective
|Official Title:||Genetic Association Study Between Single Nucleotide Polymorphisms (SNPs) and Cognitive Performance in Young Bipolar Type I Patients: LICAVALGENE|
- Cognitive deficits in BD patients are associated with COMT, ApoE and BDNF polymorphisms [ Time Frame: 18 months ] [ Designated as safety issue: No ]
|Study Start Date:||August 2009|
|Estimated Study Completion Date:||March 2012|
|Primary Completion Date:||March 2011 (Final data collection date for primary outcome measure)|
|BD type I patients|
Cognitive impairment in bipolar disease (BD) patients is common and recent data suggests that it may be an endophenotype of the disease as it differs individually, persists during periods of euthymia and co segregates in families of BD patients. Cognition is a complex trait and is therefore likely to be underpinned by many genes, each with a relatively small effect. Performance in each domain of the neuropsychological assessment can be statistically linked to the functional activity of particular protein and by extension to the genetic variants accounting for theses functional differences.
80 patients with BD type I (SCID DSM-IV), age from 18 to 35 years old, currently on mania, depression, hypomania or mixed state after medication wash out will be submitted to complete neuropsychological evaluation and genotyped for COMT (val158met, rs165599, -287, rs737865), ApoE (epsilon 4) and BDNF (val66met)and 80 healthy controls.