Back to Search
Start Over
Antipsychotic pharmacogenomics in first episode psychosis: a role for glutamate genes
- Source :
- Translational Psychiatry
- Publication Year :
- 2015
-
Abstract
- Genetic factors may underlie beneficial and adverse responses to antipsychotic treatment. These relationships may be easier to identify among patients early in the course of disease who have limited exposure to antipsychotic drugs. We examined 86 first episode patients (schizophrenia, psychotic bipolar disorder and major depressive disorder with psychotic features) who had minimal to no prior antipsychotic exposure in a 6-week pharmacogenomic study of antipsychotic treatment response. Response was measured by change in Brief Psychiatric Rating Scale total score. Risperidone monotherapy was the primary antipsychotic treatment. Pharmacogenomic association studies were completed to (1) examine candidate single-nucleotide polymorphisms (SNPs) in genes known to be involved with glutamate signaling, and (2) conduct an exploratory genome-wide association study of symptom response to identify potential novel associations for future investigation. Two SNPs in GRM7 (rs2069062 and rs2014195) were significantly associated with antipsychotic response in candidate gene analysis, as were two SNPs in the human glutamate receptor delta 2 (GRID2) gene (rs9307122 and rs1875705) in genome-wide association analysis. Further examination of these findings with those from a separate risperidone-treated study sample demonstrated that top SNPs in both studies were overrepresented in glutamate genes and that there were similarities in neurodevelopmental gene categories associated with drug response from both study samples. These associations indicate a role for gene variants related to glutamate signaling and antipsychotic response with more broad association patterns indicating the potential importance of genes involved in neuronal development.
- Subjects :
- Adult
Male
Bipolar Disorder
medicine.medical_treatment
Pharmacology
Bioinformatics
Receptors, Metabotropic Glutamate
Polymorphism, Single Nucleotide
03 medical and health sciences
Cellular and Molecular Neuroscience
Young Adult
0302 clinical medicine
medicine
Humans
Bipolar disorder
Antipsychotic
Biological Psychiatry
First episode
Depressive Disorder, Major
Risperidone
business.industry
medicine.disease
3. Good health
030227 psychiatry
Psychiatry and Mental health
Psychotic Disorders
Receptors, Glutamate
Schizophrenia
Pharmacogenetics
Pharmacogenomics
Major depressive disorder
Female
Original Article
business
Candidate Gene Analysis
030217 neurology & neurosurgery
medicine.drug
Antipsychotic Agents
Genome-Wide Association Study
Subjects
Details
- ISSN :
- 21583188
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Translational psychiatry
- Accession number :
- edsair.doi.dedup.....37fb203d85686556c51d7246e3e5684c