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Study Report
| Comment on Study | View All Comments on Study |
| Reference | Lyons-Warren, A.,2005 PMID: 15983625 |
|---|---|
| Citation | Lyons-Warren, A., J. J. Chang, et al. (2005). Evidence of association between bipolar disorder and Citron on chromosome 12q24. Mol Psychiatry 10(9): 807-809. |
| Disease Type | Bipolar Disorder |
| Study Design | family-based |
| Study Type | Candidate-gene association study |
| Sample Size | 307 nuclear families consisting of 1012 individuals,including probands diagnosed with BPI, BPII,schizoaffective disorder, or unipolar depression |
| SNP/Region/Marker Size | 7 SNPs |
| Predominant Ethnicity | |
| Population | NIMH collections(wave 3 and wave 4 pedigrees ) |
| Statistical Method | Pedigrees were analyzed for the presence of association using the Family-Based Association Test (FBAT) to detect preferential transmission of single-markers and haplotypes to affected offspring.We analyzed haplotypes outlined by Haploview based on D' measures of LD. |
|---|---|
| Result Summary | We found evidence for transmission distortion for two individual SNPs, rs203368 (P=0.020) and rs435136(P=0.012). Strong LD was observed between markers rs2285595, rs278109, rs203368, rs435136, and hCV3259834. We tested haplotypes composed of these markers and found that our single marker associations were reinforced with preferential transmissions to affected offspring in two- to five-marker haplotypes, which include rs203368 and rs435136 (0.011 < P < 0.065). No haplotypes without at least one of these markers were found to be significant.To our knowledge, this study provides the first evidence of a candidate gene for BP on chromosome 12q24, a linkage locus for BP common to many studies. Of particular interest are two SNPs (rs203368 and rs435136) in the proximity of exons that code for the DISC1 binding domain on Citron.Our evidence suggests a possible association of the Citron gene and BP in a family-based sample set.It is conceivable that Citron is one of a cluster of susceptibility genes for BP in the chromosomal region of 12q23-24. |
| SNP | Related Gene(s) | Allele Change | Risk Allele | Statistical Values | Author Comments | Result Category |
|---|---|---|---|---|---|---|
| rs435136 | CIT | T/C | FBAT: P-value = 0.012 | Significant associations were found . Significant associations were found . | Positive | |
| rs203368 | CIT | G/A | FBAT: P-value = 0.020 | Significant associations were found . Significant associations were found . | Positive |
| Markers | Haplotype | Related Gene(s)/Region(s) | Statistical Values | Author Comments | Result Category |
|---|---|---|---|---|---|
| rs435136 - hCV3259834 | C-G | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.026 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs278124 - rs278109 - rs203368 - rs435136 | C-G-A-C | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.026 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs435136 - hCV3259834 | T-A | CIT | Haplotypic association:FBAT, over-transmitted, individual P-value = 0.044 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs278109 - rs203368 | G-A | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.049 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs2285595 - rs278109 - rs203368 - rs435136 - hCV3259834 | T-A-G-T-A | CIT | Haplotypic association:FBAT, over-transmitted, individual P-value = 0.053 | No significant association was found . No significant association was found . | Negative |
| rs278124 - rs278109 - rs203368 | C-G-A | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.03 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs278109 - rs203368 - rs435136 - hCV3259834 | A-G-T-A | CIT | Haplotypic association:FBAT, over-transmitted, individual P-value = 0.065 | No significant association was found . No significant association was found . | Negative |
| rs203368 - rs435136 | G-T | CIT | Haplotypic association:FBAT, over-transmitted, individual P-value = 0.011 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs203368 - rs435136 | A-C | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.014 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs203368 - rs435136 - hCV3259834 | G-T-A | CIT | Haplotypic association:FBAT, over-transmitted, individual P-value = 0.031 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| rs203368 - rs435136 - hCV3259834 | A-C-G | CIT | Haplotypic association:FBAT, under-transmitted, individual P-value = 0.041 | Significant association was found in individual P-value. Significant association was found in individual P-value. | Positive |
| Gene | Statistical Values/Author Comments | Result Category |
|---|---|---|
| CIT | Our evidence suggests a possible association of the Citron gene and BP in a family-based sample set....... Our evidence suggests a possible association of the Citron gene and BP in a family-based sample set.It is conceivable that Citron is one of a cluster of susceptibility genes for BP in the chromosomal region of 12q23-24. More... | Positive |
Copyright: Bioinformatics Lab, Institute of Psychology, Chinese Academy of Sciences Feedback
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Last update: March 31, 2016


