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| Content Provider | Springer Nature Link |
|---|---|
| Author | Dalvie, Shareefa Fabbri, Chiara Ramesar, Raj Serretti, Alessandro Stein, Dan J. |
| Copyright Year | 2015 |
| Abstract | Glutamatergic neurotransmission has been shown to be dysregulated in bipolar disorder (BD), alcohol use disorder (AUD) and substance use disorder (SUD). Similarly, disruption in the hypothalamic-pituitary-adrenal (HPA)-axis has also been observed in these conditions. BD is often comorbid with AUD and SUD. The effects of the glutamatergic and HPA systems have not been extensively examined in individuals with BD-AUD and BD-SUD comorbidity. The aim of this investigation was to determine whether variants in the glutamatergic pathway and HPA-axis are associated with BD-AUD and BD-SUD comorbidity. The research cohort consisted of 498 individuals with BD type I from the Systematic Treatment Enhancement Program for Bipolar Disorder (STEP-BD). A subset of the cohort had comorbid current AUD and current SUD. A total of 1935 SNPs from both the glutamatergic and HPA pathways were selected from the STEP-BD genome-wide dataset. To identify population stratification, IBS clustering was performed using the program Plink 1.07. Single SNP association and gene-based association testing were conducted using logistic regression. A pathway analysis of glutamatergic and HPA genes was performed, after imputation using IMPUTE2. No single SNP was associated with BD-AUD or BD-SUD comorbidity after correction for multiple testing. However, from the gene-based analysis, the gene PRKCI was significantly associated with BD-AUD. The pathway analysis provided overall negative findings, although several genes including GRIN2B showed high percentage of associated SNPs for BD-AUD. Even though the glutamatergic and HPA pathways may not be involved in BD-AUD and BD-SUD comorbidity, PRKCI deserves further investigation in BD-AUD. |
| Starting Page | 183 |
| Ending Page | 189 |
| Page Count | 7 |
| File Format | |
| ISSN | 08857490 |
| Journal | Metabolic Brain Disease |
| Volume Number | 31 |
| Issue Number | 1 |
| e-ISSN | 15737365 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2015-11-12 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Alcoholism Bipolar disorder Gene Polymorphism Pathway Sub-phenotype Neurosciences Neurology Metabolic Diseases Biochemistry Oncology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Biochemistry Neurology (clinical) Cellular and Molecular Neuroscience |
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