Study Report
Basic Info
Reference |
De bruyn, A.,1994 PMID: 7903509
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Citation |
De bruyn, A., K. Mendelbaum, et al. (1994). "Nonlinkage of bipolar illness to tyrosine hydroxylase, tyrosinase, and D2 and D4 dopamine receptor genes on chromosome 11." Am J Psychiatry 151(1): 102-106.
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Disease Type |
Bipolar Disorder |
Study Design |
family-based |
Study Type |
Linkage study |
Sample Size |
14 families with 168 members |
SNP/Region/Marker Size |
whole genome wigde |
Predominant Ethnicity |
|
Population |
Belgian,Jewish,Italian |
Age Group |
Mean age was 26.7 years (SD= 8.9), the range was 10-50 years
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Detail Info
Sample Diagnosis |
RDC |
Sample Status |
The families in this study were separated interviewd by an experienced clinician using the Schedule for Affective Disorders and Schizophrenia, and diagnoses were based on the Research Diagnostic Criteria |
Technique |
Southern blot and DNA hybridization |
Statistical Method |
Both lod score analysis (parametric) and affected-sib-pair analysis (nonparametric) were used |
Result Summary |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene; negative results were also obtained when the narrow definition of the clinical phenotype was used. Moreover, multipoint linkage analysis of HRAS and INS excluded the 11p15 region encompassing both DRD4 and TH. In agreement with the negative linkage results, affected-sib-pair analysis did not show preferential sharing of marker alleles at any of the candidate genes. |
Other variants reported by this study for BD (count: 7)
Variant Name |
Related Gene |
Type |
Allele Change |
Risk Allele |
Statistical Values |
Author Comments |
Result Category |
HARS TaqI Polymorphism |
HARS |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
|
Negative
|
INS PvuII Polymorphism |
INS |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
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Negative
|
TYR (GA)n - (CA)n |
TYR |
duplication |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
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Negative
|
DRD4 HincII Polymorphism |
DRD4 |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
|
Negative
|
TH PstI Polymorphism |
TH |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
|
Negative
|
TH TaqI Polymorphism |
TH |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
|
Negative
|
DRD2 TaqI Polymorphism |
DRD2 |
SNP |
|
|
chi square tests:all P-value >0.05
|
No evidence support the association of this variant with BD
No evidence support the association of this variant with BD
|
Negative
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Genes reported by this study for BD (count: 6)
Gene |
Statistical Values/Author Comments |
Result Category |
DRD4 |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
|
TH |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
|
INS |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
|
DRD2 |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
|
TYR |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
|
HARS |
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and nega......
Two-point linkage results excluded close linkage of bipolar illness to each candidate gene, and negative linkage results were obtained with the candidate genes DRD4, TH, TYR, and DRD2 under different genetic and phenotypic conditions
More...
|
Negative
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Regions reported by this study for BD (count: 3)
Region |
Statistical Values |
Author Comments |
Result Category |
11p15 |
|
No significant linkage was found in this region
No significant linkage was found in this region
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Negative
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11q14-q21 |
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No significant linkage was found in this region
No significant linkage was found in this region
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Negative
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11q22-q23 |
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No significant linkage was found in this region
No significant linkage was found in this region
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Negative
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