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Rare variants in fox-1 homolog A (RBFOX1) are associated with lower blood pressure.
He KY, Wang H, Cade BE, Nandakumar P, Giri A, Ware EB, Haessler J, Liang J, Smith JA, Franceschini N, Le TH, Kooperberg C, Edwards TL, Kardia SL, Lin X, Chakravarti A, Redline S, Zhu X
(2017) PLoS Genet 13: e1006678
MeSH Terms: Adult, Blood Pressure, Body Mass Index, Chromosomes, Human, Pair 16, European Continental Ancestry Group, Family Health, Female, Gene Expression, Gene Frequency, Genetic Linkage, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Male, Middle Aged, Pedigree, Polymorphism, Single Nucleotide, RNA Splicing Factors
Show Abstract · Added April 26, 2017
Many large genome-wide association studies (GWAS) have identified common blood pressure (BP) variants. However, most of the identified BP variants do not overlap with the linkage evidence observed from family studies. We thus hypothesize that multiple rare variants contribute to the observed linkage evidence. We performed linkage analysis using 517 individuals in 130 European families from the Cleveland Family Study (CFS) who have been genotyped on the Illumina OmniExpress Exome array. The largest linkage peak was observed on chromosome 16p13 (MLOD = 2.81) for systolic blood pressure (SBP). Follow-up conditional linkage and association analyses in the linkage region identified multiple rare, coding variants in RBFOX1 associated with reduced SBP. In a 17-member CFS family, carriers of the missense variant rs149974858 are normotensive despite being obese (average BMI = 60 kg/m2). Gene-based association test of rare variants using SKAT-O showed significant association with SBP (p-value = 0.00403) and DBP (p-value = 0.0258) in the CFS participants and the association was replicated in large independent replication studies (N = 57,234, p-value = 0.013 for SBP, 0.0023 for PP). RBFOX1 is expressed in brain tissues, the atrial appendage and left ventricle in the heart, and in skeletal muscle tissues, organs/tissues which are potentially related to blood pressure. Our study showed that associations of rare variants could be efficiently detected using family information.
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19 MeSH Terms
A genome-wide sib-pair scan for quantitative language traits reveals linkage to chromosomes 10 and 13.
Evans PD, Mueller KL, Gamazon ER, Cox NJ, Tomblin JB
(2015) Genes Brain Behav 14: 387-97
MeSH Terms: Child, Chromosomes, Human, Pair 13, Chromosomes, Human, Pair 16, Chromosomes, Human, Pair 19, Female, Genetic Linkage, Genome-Wide Association Study, Humans, Language Development, Male, Phenotype, Quantitative Trait Loci
Show Abstract · Added February 22, 2016
Although there is considerable evidence that individual differences in language development are highly heritable, there have been few genome-wide scans to locate genes associated with the trait. Previous analyses of language impairment have yielded replicable evidence for linkage to regions on chromosomes 16q, 19q, 13q (within lab) and at 13q (between labs). Here we report the first linkage study to screen the continuum of language ability, from normal to disordered, as found in the general population. 383 children from 147 sib-ships (214 sib-pairs) were genotyped on the Illumina(®) Linkage IVb Marker Panel using three composite language-related phenotypes and a measure of phonological memory (PM). Two regions (10q23.33; 13q33.3) yielded genome-wide significant peaks for linkage with PM. A peak suggestive of linkage was also found at 17q12 for the overall language composite. This study presents two novel genetic loci for the study of language development and disorders, but fails to replicate findings by previous groups. Possible reasons for this are discussed.
© 2015 John Wiley & Sons Ltd and International Behavioural and Neural Genetics Society.
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2 Members
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12 MeSH Terms
Common genetic variants and response to atrial fibrillation ablation.
Shoemaker MB, Bollmann A, Lubitz SA, Ueberham L, Saini H, Montgomery J, Edwards T, Yoneda Z, Sinner MF, Arya A, Sommer P, Delaney J, Goyal SK, Saavedra P, Kanagasundram A, Whalen SP, Roden DM, Hindricks G, Ellis CR, Ellinor PT, Darbar D, Husser D
(2015) Circ Arrhythm Electrophysiol 8: 296-302
MeSH Terms: Aged, Atrial Fibrillation, Atrial Flutter, Boston, Catheter Ablation, Chi-Square Distribution, Chromosomes, Human, Pair 1, Chromosomes, Human, Pair 16, Chromosomes, Human, Pair 4, Female, Gene Frequency, Genetic Association Studies, Genetic Predisposition to Disease, Germany, Humans, Male, Middle Aged, Multivariate Analysis, Odds Ratio, Phenotype, Polymorphism, Single Nucleotide, Proportional Hazards Models, Recurrence, Risk Factors, Tachycardia, Supraventricular, Tennessee, Time Factors, Treatment Outcome
Show Abstract · Added February 22, 2016
BACKGROUND - Common single nucleotide polymorphisms (SNPs) at chromosomes 4q25 (rs2200733, rs10033464 near PITX2), 1q21 (rs13376333 in KCNN3), and 16q22 (rs7193343 in ZFHX3) have consistently been associated with the risk of atrial fibrillation (AF). Single-center studies have shown that 4q25 risk alleles predict recurrence of AF after catheter ablation of AF. Here, we performed a meta-analysis to test the hypothesis that these 4 AF susceptibility SNPs modulate response to AF ablation.
METHODS AND RESULTS - Patients underwent de novo AF ablation between 2008 and 2012 at Vanderbilt University, the Heart Center Leipzig, and Massachusetts General Hospital. The primary outcome was 12-month recurrence, defined as an episode of AF, atrial flutter, or atrial tachycardia lasting >30 seconds after a 3-month blanking period. Multivariable analysis of the individual cohorts using a Cox proportional hazards model was performed. Summary statistics from the 3 centers were analyzed using fixed effects meta-analysis. A total of 991 patients were included (Vanderbilt University, 245; Heart Center Leipzig, 659; and Massachusetts General Hospital, 87). The overall single procedure 12-month recurrence rate was 42%. The overall risk allele frequency for these SNPs ranged from 12% to 35%. Using a dominant genetic model, the 4q25 SNP, rs2200733, predicted a 1.4-fold increased risk of recurrence (adjusted hazard ratio,1.3 [95% confidence intervals, 1.1-1.6]; P=0.011). The remaining SNPs, rs10033464 (4q25), rs13376333 (1q21), and rs7193343 (16q22) were not significantly associated with recurrence.
CONCLUSIONS - Among the 3 genetic loci most strongly associated with AF, the chromosome 4q25 SNP rs2200733 is significantly associated with recurrence of atrial arrhythmias after catheter ablation for AF.
© 2015 American Heart Association, Inc.
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3 Members
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28 MeSH Terms
Fine mapping of breast cancer genome-wide association studies loci in women of African ancestry identifies novel susceptibility markers.
Zheng Y, Ogundiran TO, Falusi AG, Nathanson KL, John EM, Hennis AJ, Ambs S, Domchek SM, Rebbeck TR, Simon MS, Nemesure B, Wu SY, Leske MC, Odetunde A, Niu Q, Zhang J, Afolabi C, Gamazon ER, Cox NJ, Olopade CO, Olopade OI, Huo D
(2013) Carcinogenesis 34: 1520-8
MeSH Terms: Adult, African Continental Ancestry Group, Alleles, Biomarkers, Tumor, Breast Neoplasms, Case-Control Studies, Chromosome Mapping, Chromosomes, Human, Pair 16, Chromosomes, Human, Pair 6, Confidence Intervals, Female, Genetic Loci, Genetic Predisposition to Disease, Genome-Wide Association Study, Humans, Middle Aged, Odds Ratio, Polymorphism, Single Nucleotide
Show Abstract · Added February 22, 2016
Numerous single nucleotide polymorphisms (SNPs) associated with breast cancer susceptibility have been identified by genome-wide association studies (GWAS). However, these SNPs were primarily discovered and validated in women of European and Asian ancestry. Because linkage disequilibrium is ancestry-dependent and heterogeneous among racial/ethnic populations, we evaluated common genetic variants at 22 GWAS-identified breast cancer susceptibility loci in a pooled sample of 1502 breast cancer cases and 1378 controls of African ancestry. None of the 22 GWAS index SNPs could be validated, challenging the direct generalizability of breast cancer risk variants identified in Caucasians or Asians to other populations. Novel breast cancer risk variants for women of African ancestry were identified in regions including 5p12 (odds ratio [OR] = 1.40, 95% confidence interval [CI] = 1.11-1.76; P = 0.004), 5q11.2 (OR = 1.22, 95% CI = 1.09-1.36; P = 0.00053) and 10p15.1 (OR = 1.22, 95% CI = 1.08-1.38; P = 0.0015). We also found positive association signals in three regions (6q25.1, 10q26.13 and 16q12.1-q12.2) previously confirmed by fine mapping in women of African ancestry. In addition, polygenic model indicated that eight best markers in this study, compared with 22 GWAS-identified SNPs, could better predict breast cancer risk in women of African ancestry (per-allele OR = 1.21, 95% CI = 1.16-1.27; P = 9.7 × 10(-16)). Our results demonstrate that fine mapping is a powerful approach to better characterize the breast cancer risk alleles in diverse populations. Future studies and new GWAS in women of African ancestry hold promise to discover additional variants for breast cancer susceptibility with clinical implications throughout the African diaspora.
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2 Members
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18 MeSH Terms
A multistage genetic association study identifies breast cancer risk loci at 10q25 and 16q24.
Higginbotham KS, Breyer JP, McReynolds KM, Bradley KM, Schuyler PA, Plummer WD, Freudenthal ME, Trentham-Dietz A, Newcomb PA, Parl FF, Sanders ME, Page DL, Egan KM, Dupont WD, Smith JR
(2012) Cancer Epidemiol Biomarkers Prev 21: 1565-73
MeSH Terms: Adolescent, Adult, Aged, Aged, 80 and over, Breast Neoplasms, Chromosome Mapping, Chromosomes, Human, Pair 10, Chromosomes, Human, Pair 16, Female, Genetic Association Studies, Genetic Loci, Genetic Predisposition to Disease, Humans, Middle Aged, Polymorphism, Single Nucleotide, Risk
Show Abstract · Added March 7, 2014
BACKGROUND - Heritable risk for breast cancer includes an increasing number of common, low effect risk variants. We conducted a multistage genetic association study in a series of independent epidemiologic breast cancer study populations to identify novel breast cancer risk variants.
METHODS - We tested 1,162 SNPs of greatest nominal significance from stage I of the Cancer Genetic Markers of Susceptibility breast cancer study (CGEMS; 1,145 cases, 1,142 controls) for evidence of replicated association with breast cancer in the Nashville Breast Cohort (NBC; 599 cases, 1,161 controls), the Collaborative Breast Cancer Study (CBCS; 1,552 cases, 1,185 controls), and BioVU Breast Cancer Study (BioVU; 1,172 cases, 1,172 controls).
RESULTS - Among these SNPs, a series of validated breast cancer risk variants yielded expected associations in the study populations. In addition, we observed two previously unreported loci that were significantly associated with breast cancer risk in the CGEMS, NBC, and CBCS study populations and had a consistent, although not statistically significant, risk effect in the BioVU study population. These were rs1626678 at 10q25.3 near ENO4 and KIAA1598 (meta-analysis age-adjusted OR = 1.13 [1.07-1.20], P = 5.6 × 10(-5)), and rs8046508 at 16q23.1 in the eighth intron of WWOX (meta-analysis age-adjusted OR = 1.20 [1.10-1.31], P = 3.5 × 10(-5)).
CONCLUSIONS - Our data supports the association of two novel loci, at 10q25.3 and 16q23.1, with risk of breast cancer.
IMPACT - The expanding compendium of known breast cancer genetic risk variants holds increasing power for clinical risk prediction models of breast cancer, improving upon the Gail model.
©2012 AACR
0 Communities
4 Members
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16 MeSH Terms
Novel genetic markers of breast cancer survival identified by a genome-wide association study.
Shu XO, Long J, Lu W, Li C, Chen WY, Delahanty R, Cheng J, Cai H, Zheng Y, Shi J, Gu K, Wang WJ, Kraft P, Gao YT, Cai Q, Zheng W
(2012) Cancer Res 72: 1182-9
MeSH Terms: Adult, Aged, Asian Continental Ancestry Group, Breast Neoplasms, Chromosomes, Human, Pair 16, DNA-Binding Proteins, European Continental Ancestry Group, Female, Genetic Markers, Genome-Wide Association Study, Humans, Middle Aged, Polymorphism, Single Nucleotide
Show Abstract · Added December 10, 2013
Only two genome-wide association studies (GWAS) have been conducted to date to identify potential markers for total mortality after diagnosis of breast cancer. Here, we report the identification of two single-nucleotide polymorphisms (SNP) associated with total mortality from a two-stage GWAS conducted among 6,110 Shanghai-resident Chinese women with tumor-node-metastasis (TNM) stage I to IV breast cancer. The discovery stage included 1,950 patients and evaluated 613,031 common SNPs. The top 49 associations were evaluated in an independent replication stage of 4,160 Shanghai patients with breast cancer. A consistent and highly significant association with total mortality was documented for SNPs rs3784099 and rs9934948. SNP rs3784099, located in the RAD51L1 gene, was associated with total morality in both the discovery stage (P = 1.44 × 10(-8)) and replication stage (P = 0.06; P-combined = 1.17 × 10(-7)). Adjusted HRs for total mortality were 1.41 [95% confidence interval (CI), 1.18-1.68] for the AG genotype and 2.64 (95% CI, 1.74-4.03) for the AA genotype, when compared with the GG genotype. The variant C allele of rs9934948, located on chromosome 16, was associated with a similarly elevated risk of total mortality (P-combined = 5.75 × 10(-6)). We also observed this association among 1,145 patients with breast cancer of European ancestry from the Nurses' Health Study (NHS; P = 0.006); the association was highly significant in a combined analysis of NHS and Chinese data (P = 1.39 × 10(-7)). Similar associations were observed for these two SNPs with breast cancer-specific mortality. This study provides strong evidence suggesting that the RAD51L1 gene and a chromosome 16 locus influence breast cancer prognosis.
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3 Members
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13 MeSH Terms
Multiple recurrent de novo CNVs, including duplications of the 7q11.23 Williams syndrome region, are strongly associated with autism.
Sanders SJ, Ercan-Sencicek AG, Hus V, Luo R, Murtha MT, Moreno-De-Luca D, Chu SH, Moreau MP, Gupta AR, Thomson SA, Mason CE, Bilguvar K, Celestino-Soper PB, Choi M, Crawford EL, Davis L, Wright NR, Dhodapkar RM, DiCola M, DiLullo NM, Fernandez TV, Fielding-Singh V, Fishman DO, Frahm S, Garagaloyan R, Goh GS, Kammela S, Klei L, Lowe JK, Lund SC, McGrew AD, Meyer KA, Moffat WJ, Murdoch JD, O'Roak BJ, Ober GT, Pottenger RS, Raubeson MJ, Song Y, Wang Q, Yaspan BL, Yu TW, Yurkiewicz IR, Beaudet AL, Cantor RM, Curland M, Grice DE, Günel M, Lifton RP, Mane SM, Martin DM, Shaw CA, Sheldon M, Tischfield JA, Walsh CA, Morrow EM, Ledbetter DH, Fombonne E, Lord C, Martin CL, Brooks AI, Sutcliffe JS, Cook EH, Geschwind D, Roeder K, Devlin B, State MW
(2011) Neuron 70: 863-85
MeSH Terms: Adolescent, Cadherins, Calcium-Binding Proteins, Cell Adhesion Molecules, Neuronal, Child, Child Development Disorders, Pervasive, Child, Preschool, Chromosomes, Human, Pair 16, Chromosomes, Human, Pair 7, Chromosomes, Human, X, DNA Copy Number Variations, Family Health, Female, Gene Duplication, Gene Expression Profiling, Genome-Wide Association Study, Genotype, Humans, Male, Nerve Tissue Proteins, Neural Cell Adhesion Molecules, Oligonucleotide Array Sequence Analysis, Phenotype, Proteins, Siblings, Ubiquitin Thiolesterase, Ubiquitin-Specific Peptidase 7, Williams Syndrome
Show Abstract · Added February 20, 2014
We have undertaken a genome-wide analysis of rare copy-number variation (CNV) in 1124 autism spectrum disorder (ASD) families, each comprised of a single proband, unaffected parents, and, in most kindreds, an unaffected sibling. We find significant association of ASD with de novo duplications of 7q11.23, where the reciprocal deletion causes Williams-Beuren syndrome, characterized by a highly social personality. We identify rare recurrent de novo CNVs at five additional regions, including 16p13.2 (encompassing genes USP7 and C16orf72) and Cadherin 13, and implement a rigorous approach to evaluating the statistical significance of these observations. Overall, large de novo CNVs, particularly those encompassing multiple genes, confer substantial risks (OR = 5.6; CI = 2.6-12.0, p = 2.4 × 10(-7)). We estimate there are 130-234 ASD-related CNV regions in the human genome and present compelling evidence, based on cumulative data, for association of rare de novo events at 7q11.23, 15q11.2-13.1, 16p11.2, and Neurexin 1.
Copyright © 2011 Elsevier Inc. All rights reserved.
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1 Members
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28 MeSH Terms
Interrogating the complex role of chromosome 16p13.13 in multiple sclerosis susceptibility: independent genetic signals in the CIITA-CLEC16A-SOCS1 gene complex.
Zuvich RL, Bush WS, McCauley JL, Beecham AH, De Jager PL, International Multiple Sclerosis Genetics Consortium, Ivinson AJ, Compston A, Hafler DA, Hauser SL, Sawcer SJ, Pericak-Vance MA, Barcellos LF, Mortlock DP, Haines JL
(2011) Hum Mol Genet 20: 3517-24
MeSH Terms: CCCTC-Binding Factor, Chromosomes, Human, Pair 16, Female, Genetic Predisposition to Disease, Genome-Wide Association Study, Genotype, Humans, Lectins, C-Type, Linkage Disequilibrium, Logistic Models, Male, Monosaccharide Transport Proteins, Multiple Sclerosis, Quantitative Trait Loci, Repressor Proteins, Suppressor of Cytokine Signaling 1 Protein, Suppressor of Cytokine Signaling Proteins
Show Abstract · Added December 2, 2011
Multiple sclerosis (MS) is a neurodegenerative, autoimmune disease of the central nervous system, and numerous studies have shown that MS has a strong genetic component. Independent studies to identify MS-associated genes have often indicated multiple signals in physically close genomic regions, although by their proximity it is not always clear if these data indicate redundant or truly independent genetic signals. Recently, three MS study samples were genotyped in parallel using an Illumina Custom BeadChip. These revealed multiple significantly associated single-nucleotide polymorphisms within a 600 kb stretch on chromosome 16p13. Here we present a detailed analysis of variants in this region that clarifies the independent nature of these signals. The linkage disequilibrium patterns in the region and logistic regression analysis of the associations suggest that this region likely harbors three independent MS disease loci. Further, we examined cis-expression QTLs, histone modifications and CCCTC-binding factor (CTCF) binding data in the region. We also tested for correlated expression of the genes from the region using whole-genome expression array data from lymphoblastoid cell lines. Three of the genes show expression correlations across loci. Furthermore, in the GM12878 lymphoblastoid cell line, these three genes are in a continuous region devoid of H3K27 methylation, suggesting an open chromatin configuration. This region likely only contributes minimal risk to MS; however, investigation of this region will undoubtedly provide insight into the functional mechanisms of these genes. These data highlight the importance of taking a closer look at the expression and function of chromosome 16p13 in the pathogenesis of MS.
1 Communities
1 Members
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17 MeSH Terms
Rare familial 16q21 microdeletions under a linkage peak implicate cadherin 8 (CDH8) in susceptibility to autism and learning disability.
Pagnamenta AT, Khan H, Walker S, Gerrelli D, Wing K, Bonaglia MC, Giorda R, Berney T, Mani E, Molteni M, Pinto D, Le Couteur A, Hallmayer J, Sutcliffe JS, Szatmari P, Paterson AD, Scherer SW, Vieland VJ, Monaco AP
(2011) J Med Genet 48: 48-54
MeSH Terms: Adolescent, Autistic Disorder, Base Sequence, Cadherins, Child, Chromosome Deletion, Chromosomes, Human, Pair 16, DNA Copy Number Variations, DNA Mutational Analysis, Family, Female, Gene Expression Regulation, Genetic Linkage, Genetic Predisposition to Disease, Genome, Human, Humans, Intelligence Tests, Internet, Learning Disabilities, Male, Molecular Sequence Data, Pedigree, Young Adult
Show Abstract · Added February 20, 2014
BACKGROUND - Autism spectrum disorder (ASD) is characterised by impairments in social communication and by a pattern of repetitive behaviours, with learning disability (LD) typically seen in up to 70% of cases. A recent study using the PPL statistical framework identified a novel region of genetic linkage on chromosome 16q21 that is limited to ASD families with LD.
METHODS - In this study, two families with autism and/or LD are described which harbour rare >1.6 Mb microdeletions located within this linkage region. The deletion breakpoints are mapped at base-pair resolution and segregation analysis is performed using a combination of 1M single nucleotide polymorphism (SNP) technology, array comparative genomic hybridisation (CGH), long-range PCR, and Sanger sequencing. The frequency of similar genomic variants in control subjects is determined through analysis of published SNP array data. Expression of CDH8, the only gene disrupted by these microdeletions, is assessed using reverse transcriptase PCR and in situ hybridisation analysis of 9 week human embryos.
RESULTS - The deletion of chr16: 60 025 584-61 667 839 was transmitted to three of three boys with autism and LD and none of four unaffected siblings, from their unaffected mother. In a second family, an overlapping deletion of chr16: 58 724 527-60 547 472 was transmitted to an individual with severe LD from his father with moderate LD. No copy number variations (CNVs) disrupting CDH8 were observed in 5023 controls. Expression analysis indicates that the two CDH8 isoforms are present in the developing human cortex.
CONCLUSION - Rare familial 16q21 microdeletions and expression analysis implicate CDH8 in susceptibility to autism and LD.
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23 MeSH Terms
Identification of a functional genetic variant at 16q12.1 for breast cancer risk: results from the Asia Breast Cancer Consortium.
Long J, Cai Q, Shu XO, Qu S, Li C, Zheng Y, Gu K, Wang W, Xiang YB, Cheng J, Chen K, Zhang L, Zheng H, Shen CY, Huang CS, Hou MF, Shen H, Hu Z, Wang F, Deming SL, Kelley MC, Shrubsole MJ, Khoo US, Chan KY, Chan SY, Haiman CA, Henderson BE, Le Marchand L, Iwasaki M, Kasuga Y, Tsugane S, Matsuo K, Tajima K, Iwata H, Huang B, Shi J, Li G, Wen W, Gao YT, Lu W, Zheng W
(2010) PLoS Genet 6: e1001002
MeSH Terms: Asian Continental Ancestry Group, Breast Neoplasms, Cell Line, Chromosomes, Human, Pair 16, Female, Genome-Wide Association Study, Humans, Neoplasm Staging, Open Reading Frames, Polymorphism, Single Nucleotide, Risk Factors
Show Abstract · Added December 10, 2013
Genetic factors play an important role in the etiology of breast cancer. We carried out a multi-stage genome-wide association (GWA) study in over 28,000 cases and controls recruited from 12 studies conducted in Asian and European American women to identify genetic susceptibility loci for breast cancer. After analyzing 684,457 SNPs in 2,073 cases and 2,084 controls in Chinese women, we evaluated 53 SNPs for fast-track replication in an independent set of 4,425 cases and 1,915 controls of Chinese origin. Four replicated SNPs were further investigated in an independent set of 6,173 cases and 6,340 controls from seven other studies conducted in Asian women. SNP rs4784227 was consistently associated with breast cancer risk across all studies with adjusted odds ratios (95% confidence intervals) of 1.25 (1.20-1.31) per allele (P = 3.2 x 10(-25)) in the pooled analysis of samples from all Asian samples. This SNP was also associated with breast cancer risk among European Americans (per allele OR = 1.19, 95% CI = 1.09-1.31, P = 1.3 x 10(-4), 2,797 cases and 2,662 controls). SNP rs4784227 is located at 16q12.1, a region identified previously for breast cancer risk among Europeans. The association of this SNP with breast cancer risk remained highly statistically significant in Asians after adjusting for previously-reported SNPs in this region. In vitro experiments using both luciferase reporter and electrophoretic mobility shift assays demonstrated functional significance of this SNP. These results provide strong evidence implicating rs4784227 as a functional causal variant for breast cancer in the locus 16q12.1 and demonstrate the utility of conducting genetic association studies in populations with different genetic architectures.
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6 Members
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11 MeSH Terms