5 results on '"John SK Kauwe"'
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2. Genome-wide association study of brain arteriolosclerosis
- Author
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Lincoln MP Shade, Yuriko Katsumata, Timothy J Hohman, Kwangsik Nho, Andrew J Saykin, Shubhabrata Mukherjee, Kevin L Boehme, John SK Kauwe, Lindsay A Farrer, Gerard D Schellenberg, Jonathan L Haines, Richard P Mayeux, Julie A Schneider, Peter T Nelson, and David W Fardo
- Subjects
Arteriolosclerosis ,Neurology ,Alzheimer Disease ,Brain ,Humans ,Original Articles ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine ,Polymorphism, Single Nucleotide ,Aged ,Genome-Wide Association Study - Abstract
Brain arteriolosclerosis (B-ASC) is characterized by pathologically altered brain parenchymal arterioles. B-ASC is associated with cognitive impairment and increased likelihood of clinical dementia. To date, no study has been conducted on genome-wide genetic risk of autopsy-proven B-ASC. We performed a genome-wide association study (GWAS) of the B-ASC phenotype using multiple independent aged neuropathologic cohorts. Included in the study were participants with B-ASC autopsy and genotype data available from the NACC, ROSMAP, ADNI, and ACT data sets. Initial Stage 1 GWAS ( n = 3382) and Stage 2 mega-analysis ( n = 4569) were performed using data from the two largest cohorts (NACC and ROSMAP). Replication of top variants and additional Stage 3 mega-analysis were performed incorporating two smaller cohorts (ADNI and ACT). Lead variants in the top two loci in the Stage 2 mega-analysis (rs7902929, p = [Formula: see text]; rs2603462, p = [Formula: see text]) were significant in the ADNI cohort (rs7902929, p = [Formula: see text]; rs2603462, p = [Formula: see text]). The rs2603462 lead variant colocalized with ELOVL4 expression in the cerebellum (posterior probability = 90.1%). Suggestive associations were also found near SORCS1 and SORCS3. We thus identified putative loci associated with B-ASC risk, but additional replication is needed.
- Published
- 2022
3. 17q21.31 Sub-Haplotypes Underlying H1-Associated Risk for Parkinson's Disease and Progressive Supranuclear Palsy Converge on Altered Glial Regulation
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Kathryn Bowles, Derian A. Pugh, Kurt Farrell, Natalia Han, Julia TCW, Y. Liu, Shiang An Liang, Lu Qian, Jaroslav Bendl, John F. Fullard, Alan E. Renton, Alicia Casella, Megan A. Iida, Sara Bandres-Ciga, Ziv Gan-Or, Peter Heutink, Ari Siitonen, Sarah Bertelsen, Celeste M. Karch, Steven J. Frucht, Brian H. Kopell, Inga Peter, You Jeong Park, PK Crane, John SK Kauwe, Kevin L. Boehme, Guenter U. Hoglinger, PART Working Group, International Parkinson’s Disease G Consortium (IPDGC), Progressive Supranuclear Palsy Gene Consortium, Alexander Charney, Panagiotis Roussos, JC Wang, Wayne W. Poon, Towfique Raj, John F. Crary, and Alison M. Goate
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Structural variation ,Genetics ,Parkinson's disease ,Movement disorders ,Haplotype ,medicine ,Locus (genetics) ,Disease ,Tauopathy ,medicine.symptom ,Biology ,medicine.disease ,Progressive supranuclear palsy - Abstract
Parkinson’s disease (PD) and progressive supranuclear palsy (PSP) are clinically similar neurodegenerative movement disorders that display unique neuropathological features (i.e. Lewy body pathology and Tau pathology, respectively). While each disorder has distinct clinical and genetic risk factors, both are associated with the MAPT 17q.21.31 locus H1 haplotype. This suggests a pleiotropic effect of this genomic region. To better understand the genetic contribution of this region to these diseases, we fine-mapped the apparent pleiotropy of this locus. Our study indicates that PD and PSP are associated with different sub-haplotypes of the H1 clade. PD-associated sub-haplotypes were associated with altered LRRC37A copy number and expression, which, like other PD risk-associated genes, we hypothesize to be most relevant to astroglial function. In contrast, PSP was associated with grossly altered LD structure across the 17q21.31 locus, and risk-associated variants were found to impact chromatin structure in both neurons and microglia. We conclude that the contribution of the 17q21.31 locus to multiple disorders is a result of its structural and haplotypic complexity, which in turn impacts the regulation of multiple genes and neural cell types. This raises the possibility of novel disease-specific pathogenic mechanisms driven by 17q21.31 structural variation and altered epigenetic regulation that appear to converge on glial function and gene expression. By fine-mapping the association of H1 with PD and PSP, we have begun to untangle the apparent pleiotropy of this locus, and gain better insight into the mechanism of each disease, which will guide future functional analyses and disease models for PD and PSP.
- Published
- 2020
4. Analysis of shared heritability in common disorders of the brain
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Erneri, Anttila, Brendan, Bulik-Sullivan, Hilary, K Finucane, Raymond, K Walters, Jose, Bras, Laramie, Duncan, Valentina, Escott-Price, Guido, J Falcone, Padhraig, Gormley, Rainer, Malik, Nikolaos, A Patsopoulos, Stephan, Ripke, Zhi, Wei, Dongmei, Yu, Phil, H Lee, Patrick, Turley, Benjamin, Grenier-Boley, Vincent, Chouraki, Yoichiro, Kamatani, Claudine, Berr, Luc, Letenneur, Didier, Hannequin, Philippe, Amouyel, Anne, Boland, Jean-Francois, Deleuze, Emmanuelle, Duron, Badri, N Vardarajan, Christiane, Reitz, Alison, M Goate, Matthew, J Huentelman, M Ilyas Kamboh, Eric, B Larson, Ekaterina, Rogaeva, Peter St George-Hyslop, Hakon, Hakonarson, Walter, A Kukull, Lindsay, A Farrer, Lisa, L Barnes, Thomas, G Beach, F Yesim Demirci, Elizabeth, Head, Christine, M Hulette, Gregory, A Jicha, John SK Kauwe, Jeffrey, A Kaye, James, B Leverenz, Allan, I Levey, Andrew, P Lieberman, Vernon, S Pankratz, Wayne, W Poon, Joseph, F Quinn, Andrew, J Saykin, Lon, S Schneider, Amanda, G Smith, Joshua, A Sonnen, Robert, A Stern, Vivianna, M Van Deerlin, Linda, J Van Eldik, Denise, Harold, Giancarlo, Russo, David, C Rubinsztein, Anthony, Bayer, Magda, Tsolaki, Petra, Proitsi, Nick, C Fox, Harald, Hampel, Michael, J Owen, Simon, Mead, Peter, Passmore, Kevin, Morgan, Markus, M Nöthen, Jonathan, M Schott, Martin, Rossor, Michelle, K Lupton, Per, Hoffmann, Johannes, Kornhuber, Brian, Lawlor, Andrew, Mcquillin, Ammar, Al-Chalabi, Joshua, C Bis, Agustin, Ruiz, Mercè, Boada, Sudha, Seshadri, Alexa, Beiser, Kenneth, Rice, Sven, J van der Lee, Philip, L De Jager, Daniel, H Geschwind, Matthias, Riemenschneider, Steffi, Riedel-Heller, Jerome, I Rotter, Gerhard, Ransmayr, Bradley, T Hyman, Carlos, Cruchaga, Montserrat, Alegret, Bendik, Winsvold, Priit, Palta, Kai-How, Farh, Ester, Cuenca-Leon, Nicholas, Furlotte, Tobias, Kurth, Lannie, Ligthart, Gisela, M Terwindt, Tobias, Freilinger, Caroline, Ran, Scott, D Gordon, Guntram, Borck, Hieab HH Adams, Terho, Lehtimäki, Juho, Wedenoja, Julie, E Buring, Markus, Schürks, Maria, Hrafnsdottir, Jouke-Jan, Hottenga, Brenda, Penninx, Ville, Artto, Mari, Kaunisto, Salli, Vepsäläinen, Nicholas, G Martin, Grant, W Montgomery, Mitja, I Kurki, Eija, Hämäläinen, Hailiang, Huang, Jie, Huang, Cynthia, Sandor, Striano, Pasquale, Zara, Federico, Caleb, Webber, Bertram, Muller-Myhsok, Stefan, Schreiber, Veikko, Salomaa, Elizabeth, Loehrer, Hartmut, Göbel, Alfons, Macaya, Patricia, Pozo-Rosich, Thomas, Hansen, Thomas, Werge, Jaakko, Kaprio, Andres, Metspalu, Christian, Kubisch, Michel, D Ferrari, Andrea, C Belin, Arn MJM van den Maagdenberg, John-Anker, Zwart, Dorret, Boomsma, Nicholas, Eriksson, Jes, Olesen, Daniel, I Chasman, Dale, R Nyholt, Richard, Anney, Andreja, Avbersek, and Larry, Baum
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Brain Diseases ,Quantitative Trait ,Phenotype ,Risk Factors ,Mental Disorders ,Genetic Variation ,Humans ,Genome-Wide Association Study ,Quantitative Trait, Heritable ,Heritable - Published
- 2018
5. Haplotype-based association analysis of the MAPT locus in Late Onset Alzheimer's disease.
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Odity Mukherjee, John SK Kauwe, Kevin Mayo, John C Morris, and Alison M Goate
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ALZHEIMER'S disease , *AMYLOID , *HOMOPLASY , *DISEASES in older people , *HEALTH of older people - Abstract
Background: Late onset Alzheimer's disease (LOAD) is a common sporadic form of the illness, affecting individuals above the age of 65 yrs. A prominent hypothesis for the aetiopathology of Alzheimer's disease is that in the presence of a β-amyloid load, individuals expressing a pathogenic form of tau protein (MAPT) are at increased risk for developing the disease. Genetic studies in this pursuit have, however, yielded conflicting results. A recent study showed a significant haplotype association (H1c) with AD. The current study is an attempt to replicate this association in an independently ascertained cohort. Results: In this report we present the findings of a haplotype analysis at the MAPT locus. We failed to detect evidence of association of the H1c haplotype at the MAPT locus with LOAD. None of the six SNPs forming the H1c haplotype showed evidence of association with disease. In addition, nested clade analysis suggested the presence of independent mutations at multiple points in the haplotype network or homoplasy at the MAPT locus. Such homoplasy can confound single SNP tests for association. We do not detect evidence that the set of SNPs forming the H1c haplotype in general or rs242557 in particular are pathogenic for LOAD. Conclusion:In conclusion, we employed two contemporary haplotype analysis tools to perform haplotype association analysis at the MAPT locus. Our data suggest that the tagged SNPs forming the H1c haplotype do not have a causal role in the pathogenesis of LOAD. [ABSTRACT FROM AUTHOR]
- Published
- 2007
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