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Methods and Applications for Improving Interpretation of Genetic and Genomic Data
Methods and Applications for Improving Interpretation of Genetic and Genomic Data
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202105238
- ISBN
- 9798291568071
- DDC
- 574
- 저자명
- Annis, Aubrey C.
- 서명/저자
- Methods and Applications for Improving Interpretation of Genetic and Genomic Data
- 발행사항
- [Sl] : University of Michigan, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 237 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-03, Section: B.
- 주기사항
- Advisor: Abecasis, Goncalo;Scott, Laura.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2025.
- 초록/해제
- 요약With recent influxes in the quantity of genetic and genomic data available, the best methods for data interpretation are not always clear, and it is easy to adhere to outdated standards that are no longer optimal. Here we propose methods and applications for interpreting genetic and genomic data that reevaluate old standards and suggest new ones where needed.In the first project, we examined persistent opioid use after surgery in the Michigan Genomics Initiative biobank, which is a common morbidity outcome associated with subsequent opioid use disorder, overdose, and death. While phenotypic associations have been described, genetic associations remain unidentified. We conducted the largest genetic study to date of persistent opioid use after surgery, comprising ~40,000 non-Hispanic, European-ancestry Michigan Genomics Initiative participants (3,198 cases and 36,321 surgically exposed controls). Our study focused on the reproducibility and reliability of 72 genetic studies of opioid use disorder phenotypes. Nominal associations (p0.05) occurred at 12 of 80 unique (r20.8) signals from these studies. Six occurred in OPRM1 (most significant: rs79704991-T, OR=1.17, p=8.7x10-5), with two surviving multiple testing correction. Other associations were rs640561- LRRIQ3 (p=0.015), rs4680-COMT (p=0.016), rs9478495 (p=0.017, intergenic), rs10886472- GRK5 (p=0.028), rs9291211-SLC30A9/BEND4 (p=0.043), and rs112068658-KCNN1 (p=0.048). Two highly referenced genes, OPRD1 and DRD2/ANKK1, had no signals in MGI. Associations at previously identified OPRM1 variants suggest common biology between persistent opioid use and opioid use disorder, further demonstrating connections between opioid dependence and addiction phenotypes. Lack of significant associations at other variants challenges previous studies' reliability.In the second project, we examined significance criteria for electronic health record biobank data from the UK Biobank and the Michigan Genomics Initiative. Association testing across many phenotypes increases the multiple-testing burden and makes appropriate multiple-testing correction uncertain. Moreover, analyses including low-frequency variants can result in inflated type 1 error due to the much larger number of tests and the elevated importance of each individual minor allele carrier in those tests. Here we demonstrate that standard methods for multiple testing correction are inadequate for a holistic analysis of biobank data because ideal significance thresholds vary across datasets and minor allele frequencies. We propose a single-iteration permutation method that is computationally feasible and provides false discovery rate estimates tailored to individual datasets and variant frequencies. Each dataset's unique false discovery rate estimates provide customized levels of confidence for association results and enable informed interpretation of genetic association studies across the phenome.In the third project, we characterized the extent of hybridization disruption among probes with variants under the probe in methylation array data and proposed a targeted person-by-probe sample removal approach prior to analysis. If undetected, variants under the probe can elevate the contribution of background fluorescent signal and bias the observed percent methylation, increasing noise (decreasing power) or causing incorrect inference in methylation quantitative trail loci (QTL) analyses. Using whole genome sequencing and blood-based MethylationEpic Beadchip array data from the TOPMed Lung Tissue Research Consortium (n=1,248), we showed that hybridization disruption caused by variants under the probe can occur at any point along the probe, producing intensity signals that differ significantly from fully bound probes even 40-50 base pairs from the methylation site. We also show that hybridization disruption can skew methylation estimates among probes affected by variation under the probe. We quantitate the effects of these variants on methylation estimates by their positions under the probe and propose a probe-specific approach to counteract affected methylation estimates.
- 일반주제명
- Biostatistics
- 일반주제명
- Genetics
- 일반주제명
- Systematic biology
- 일반주제명
- Bioinformatics
- 키워드
- Genomic data
- 기타저자
- University of Michigan Biostatistics
- 기본자료저록
- Dissertations Abstracts International. 87-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798291568071
■035 ▼a(MiAaPQ)AAI32271978
■035 ▼a(MiAaPQ)umichrackham006201
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a574
■1001 ▼aAnnis, Aubrey C.
■24510▼aMethods and Applications for Improving Interpretation of Genetic and Genomic Data
■260 ▼a[Sl]▼bUniversity of Michigan▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a237 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-03, Section: B.
■500 ▼aAdvisor: Abecasis, Goncalo;Scott, Laura.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2025.
■520 ▼aWith recent influxes in the quantity of genetic and genomic data available, the best methods for data interpretation are not always clear, and it is easy to adhere to outdated standards that are no longer optimal. Here we propose methods and applications for interpreting genetic and genomic data that reevaluate old standards and suggest new ones where needed.In the first project, we examined persistent opioid use after surgery in the Michigan Genomics Initiative biobank, which is a common morbidity outcome associated with subsequent opioid use disorder, overdose, and death. While phenotypic associations have been described, genetic associations remain unidentified. We conducted the largest genetic study to date of persistent opioid use after surgery, comprising ~40,000 non-Hispanic, European-ancestry Michigan Genomics Initiative participants (3,198 cases and 36,321 surgically exposed controls). Our study focused on the reproducibility and reliability of 72 genetic studies of opioid use disorder phenotypes. Nominal associations (p0.05) occurred at 12 of 80 unique (r20.8) signals from these studies. Six occurred in OPRM1 (most significant: rs79704991-T, OR=1.17, p=8.7x10-5), with two surviving multiple testing correction. Other associations were rs640561- LRRIQ3 (p=0.015), rs4680-COMT (p=0.016), rs9478495 (p=0.017, intergenic), rs10886472- GRK5 (p=0.028), rs9291211-SLC30A9/BEND4 (p=0.043), and rs112068658-KCNN1 (p=0.048). Two highly referenced genes, OPRD1 and DRD2/ANKK1, had no signals in MGI. Associations at previously identified OPRM1 variants suggest common biology between persistent opioid use and opioid use disorder, further demonstrating connections between opioid dependence and addiction phenotypes. Lack of significant associations at other variants challenges previous studies' reliability.In the second project, we examined significance criteria for electronic health record biobank data from the UK Biobank and the Michigan Genomics Initiative. Association testing across many phenotypes increases the multiple-testing burden and makes appropriate multiple-testing correction uncertain. Moreover, analyses including low-frequency variants can result in inflated type 1 error due to the much larger number of tests and the elevated importance of each individual minor allele carrier in those tests. Here we demonstrate that standard methods for multiple testing correction are inadequate for a holistic analysis of biobank data because ideal significance thresholds vary across datasets and minor allele frequencies. We propose a single-iteration permutation method that is computationally feasible and provides false discovery rate estimates tailored to individual datasets and variant frequencies. Each dataset's unique false discovery rate estimates provide customized levels of confidence for association results and enable informed interpretation of genetic association studies across the phenome.In the third project, we characterized the extent of hybridization disruption among probes with variants under the probe in methylation array data and proposed a targeted person-by-probe sample removal approach prior to analysis. If undetected, variants under the probe can elevate the contribution of background fluorescent signal and bias the observed percent methylation, increasing noise (decreasing power) or causing incorrect inference in methylation quantitative trail loci (QTL) analyses. Using whole genome sequencing and blood-based MethylationEpic Beadchip array data from the TOPMed Lung Tissue Research Consortium (n=1,248), we showed that hybridization disruption caused by variants under the probe can occur at any point along the probe, producing intensity signals that differ significantly from fully bound probes even 40-50 base pairs from the methylation site. We also show that hybridization disruption can skew methylation estimates among probes affected by variation under the probe. We quantitate the effects of these variants on methylation estimates by their positions under the probe and propose a probe-specific approach to counteract affected methylation estimates.
■590 ▼aSchool code: 0127.
■650 4▼aBiostatistics
■650 4▼aGenetics
■650 4▼aSystematic biology
■650 4▼aBioinformatics
■653 ▼aStatistical genetics
■653 ▼aData interpretation
■653 ▼aGenomic data
■653 ▼aQuantitative trail loci
■653 ▼aOpioid use disorder
■690 ▼a0308
■690 ▼a0369
■690 ▼a0423
■690 ▼a0715
■71020▼aUniversity of Michigan▼bBiostatistics.
■7730 ▼tDissertations Abstracts International▼g87-03B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359940▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


