Study Report

Basic Info
| Reference |
Hu, X.,2010 PMID: 20502444
|
| Citation |
Hu, X., Q. Liu, et al. (2010). "SHEsisEpi, a GPU-enhanced genome-wide SNP-SNP interaction scanning algorithm, efficiently reveals the risk genetic epistasis in bipolar disorder." Cell Res 20(7): 854-857.
|
| Disease Type |
Bipolar Disorder |
| Study Design |
case-control |
| Study Type |
Genetic interaction study |
| Sample Size |
1869 cases and 2940 controls in WTCCC's BPD GWAS data |
| Predominant Ethnicity |
Caucasian and Mongloid |
| Population |
WTCCC collection and Chinese |
| Gender |
255 males and 220 females for BPD patients and 280 males and 200 females for controls in Chinese samples |
| Age Group |
Adults
:
Mean age(SD)(year):37.4(9.9) in BPD patients,36.4(7.2) in controls for Chinese samples
|

Detail Info
| Sample Diagnosis |
DSM |
| Replication Size |
475 unrelated BPD patients and 480 normal controls for Chinese sample, |
| Technique |
genotyping |
| Statistical Method |
In this study, we used CUDA (Compute Unified Device Architecture) to develop a GPU-based algorithm,named as SHEsisEpi,which can efficiently scan all pairwise SNP-SNP interactions in GWAS, and report purely risk epistasis without single-locus association contamination. |
| Result Summary |
The first pair that fit all criteria was rs10124883-rs178069 (P = 5.37 E?12), and their related genes were ASTN2 and SNAP29, respectively. rs6004133,which is located in PIK4CA, was close to rs178069 in position, and SNP pair rs10124883-rs6004133 (P = 6.49E?12) also fit all the criteria.Both of the significant findings from genome-wide scan, rs10124883-rs178069 (P = 0.026) and rs10124883-rs6004133 (P = 0.021),were replicated in our independent sample set. We also found rs10124883-rs6004133 (P = 0.027), rs10124883-rs165730 (P = 0.038), rs10124883-rs165596 (P = 0.035),and rs10124883-rs178069 (P = 0.031) to be risk epistasis pairs in our independent sample set. Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 or ASTN2 and PIK4CA, or other genes in linkage disequilibrium with any genes in these pairs, were risk factors of BPD, in both Caucasian and Chinese Han populations. |

Haplotypes reported by this study for BD (count: 8)
| Markers |
Haplotype |
Related Gene(s)/Region(s) |
Statistical Values |
Author Comments |
Result Category |
| rs10123629 - rs178069 |
|
ASTN2
SNAP29
|
SNP-SNP interaction:P-value = 0.021 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10124883 - rs165596 |
|
ASTN2
SNAP29
|
SNP-SNP interaction:P-value = 0.035 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10124883 - rs178069 |
|
ASTN2
SNAP29
|
SNP-SNP interaction:P-value = 5.37E-12 for WTCCC data, P-value = 0.031 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10124883 - rs165730 |
|
ASTN2
PI4KA
|
SNP-SNP interaction:P-value = 0.038 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10123629 - rs6004133 |
|
ASTN2
PI4KA
|
SNP-SNP interaction:P-value = 0.026 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10123629 - rs165596 |
|
ASTN2
SNAP29
|
SNP-SNP interaction:P-value = 0.132 for replication study(Chinese sample).
|
No significant association was found .
No significant association was found .
|
Negative
|
| rs10124883 - rs6004133 |
|
ASTN2
PI4KA
|
SNP-SNP interaction:P-value = 6.49E-12 for WTCCC data, P-value = 0.027 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
| rs10123629 - rs165730 |
|
ASTN2
PI4KA
|
SNP-SNP interaction:P-value = 0.085 for replication study(Chinese sample).
|
No significant association was found .
No significant association was found .
|
Negative
|

Genes reported by this study for BD (count: 3)
| Gene |
Statistical Values/Author Comments |
Result Category |
| PI4KA |
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 o......
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 or ASTN2 and PIK4CA, or other genes in linkage disequilibrium with any genes in these pairs, were risk factors of BPD, in both Caucasian and Chinese Han populations.
More...
|
Positive
|
| SNAP29 |
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 o......
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 or ASTN2 and PIK4CA, or other genes in linkage disequilibrium with any genes in these pairs, were risk factors of BPD, in both Caucasian and Chinese Han populations.
More...
|
Positive
|
| ASTN2 |
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 o......
Our results indicate that interactions between neurological pathway-related genes ASTN2 and SNAP29 or ASTN2 and PIK4CA, or other genes in linkage disequilibrium with any genes in these pairs, were risk factors of BPD, in both Caucasian and Chinese Han populations.
More...
|
Positive
|

Gene-gene interactions reported by this study for BD (count: 2)
| Gene Group |
Markers |
Statistical Values |
Author Comments |
Result Category |
|
ASTN2
SNAP29
|
rs10124883 - rs178069; rs10123629 - rs165596; rs10123629 - rs178069; rs10124883 - rs165596; rs10124883 - rs178069 |
SNP-SNP interaction: for markers "rs10124883 - rs178069", P-value = 5.37E-12 for WTCCC data. For markers "rs10123629 - rs165596", P-value = 0.132 for replication study(Chinese sample). For markers "rs10123629 - rs178069", P-value = 0.021 for replication study(Chinese sample). For markers "rs10124883 - rs165596", P-value = 0.035 for replication study(Chinese sample). For markers "rs10124883 - rs178069", P-value = 0.031 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|
|
ASTN2
PI4KA
|
rs10124883 - rs6004133; rs10123629 - rs6004133; rs10123629 - rs165730; rs10124883 - rs6004133; rs10124883 - rs165730 |
SNP-SNP interaction: for markers "rs10124883 - rs6004133", P-value = 6.49E-12 for WTCCC data. For markers "rs10123629 - rs6004133", P-value = 0.026 for replication study(Chinese sample). For markers "rs10123629 - rs165730", P-value = 0.085 for replication study(Chinese sample). For markers "rs10124883 - rs6004133", P-value = 0.027 for replication study(Chinese sample). For markers "rs10124883 - rs165730", P-value = 0.038 for replication study(Chinese sample).
|
Significant association was found in BPD.
Significant association was found in BPD.
|
Positive
|