@article {6284, title = {Common genetic loci influencing plasma homocysteine concentrations and their effect on risk of coronary artery disease.}, journal = {Am J Clin Nutr}, volume = {98}, year = {2013}, month = {2013 Sep}, pages = {668-76}, abstract = {

BACKGROUND: The strong observational association between total homocysteine (tHcy) concentrations and risk of coronary artery disease (CAD) and the null associations in the homocysteine-lowering trials have prompted the need to identify genetic variants associated with homocysteine concentrations and risk of CAD.

OBJECTIVE: We tested whether common genetic polymorphisms associated with variation in tHcy are also associated with CAD.

DESIGN: We conducted a meta-analysis of genome-wide association studies (GWAS) on tHcy concentrations in 44,147 individuals of European descent. Polymorphisms associated with tHcy (P < 10($^{-}$$^{8}$) were tested for association with CAD in 31,400 cases and 92,927 controls.

RESULTS: Common variants at 13 loci, explaining 5.9\% of the variation in tHcy, were associated with tHcy concentrations, including 6 novel loci in or near MMACHC (2.1 {\texttimes} 10$^{-}$$^{9}$), SLC17A3 (1.0 {\texttimes} 10$^{-}$$^{8}$), GTPB10 (1.7 {\texttimes} 10$^{-}$$^{8}$), CUBN (7.5 {\texttimes} 10$^{-}${\textonesuperior}$^{0}$), HNF1A (1.2 {\texttimes} 10$^{-}${\textonesuperior}{\texttwosuperior})), and FUT2 (6.6 {\texttimes} 10$^{-}$$^{9}$), and variants previously reported at or near the MTHFR, MTR, CPS1, MUT, NOX4, DPEP1, and CBS genes. Individuals within the highest 10\% of the genotype risk score (GRS) had 3-μmol/L higher mean tHcy concentrations than did those within the lowest 10\% of the GRS (P = 1 {\texttimes} 10$^{-}${\textthreesuperior}$^{6}$). The GRS was not associated with risk of CAD (OR: 1.01; 95\% CI: 0.98, 1.04; P = 0.49).

CONCLUSIONS: We identified several novel loci that influence plasma tHcy concentrations. Overall, common genetic variants that influence plasma tHcy concentrations are not associated with risk of CAD in white populations, which further refutes the causal relevance of moderately elevated tHcy concentrations and tHcy-related pathways for CAD.

}, keywords = {Coronary Artery Disease, Genes, Genetic Loci, Genetic Predisposition to Disease, Genotype, Homocysteine, Humans, Polymorphism, Genetic, Risk Factors}, issn = {1938-3207}, doi = {10.3945/ajcn.112.044545}, author = {van Meurs, Joyce B J and Par{\'e}, Guillaume and Schwartz, Stephen M and Hazra, Aditi and Tanaka, Toshiko and Vermeulen, Sita H and Cotlarciuc, Ioana and Yuan, Xin and M{\"a}larstig, Anders and Bandinelli, Stefania and Bis, Joshua C and Blom, Henk and Brown, Morris J and Chen, Constance and Chen, Yii-Der and Clarke, Robert J and Dehghan, Abbas and Erdmann, Jeanette and Ferrucci, Luigi and Hamsten, Anders and Hofman, Albert and Hunter, David J and Goel, Anuj and Johnson, Andrew D and Kathiresan, Sekar and Kampman, Ellen and Kiel, Douglas P and Kiemeney, Lambertus A L M and Chambers, John C and Kraft, Peter and Lindemans, Jan and McKnight, Barbara and Nelson, Christopher P and O{\textquoteright}Donnell, Christopher J and Psaty, Bruce M and Ridker, Paul M and Rivadeneira, Fernando and Rose, Lynda M and Seedorf, Udo and Siscovick, David S and Schunkert, Heribert and Selhub, Jacob and Ueland, Per M and Vollenweider, Peter and Waeber, G{\'e}rard and Waterworth, Dawn M and Watkins, Hugh and Witteman, Jacqueline C M and den Heijer, Martin and Jacques, Paul and Uitterlinden, Andr{\'e} G and Kooner, Jaspal S and Rader, Dan J and Reilly, Muredach P and Mooser, Vincent and Chasman, Daniel I and Samani, Nilesh J and Ahmadi, Kourosh R} } @article {6556, title = {Effect of genetic variants associated with plasma homocysteine levels on stroke risk.}, journal = {Stroke}, volume = {45}, year = {2014}, month = {2014 Jul}, pages = {1920-4}, abstract = {

BACKGROUND AND PURPOSE: Elevated total plasma homocysteine (tHcy) levels are known to be associated with increased risk of ischemic stroke (IS). Given that both tHcy and IS are heritable traits, we investigated a potential genetic relationship between homocysteine levels and stroke risk by assessing 18 polymorphisms previously associated with tHcy levels for their association with IS and its subtypes.

METHODS: Previous meta-analysis results from an international stroke collaborative network, METASTROKE, were used to assess association of the 18 tHcy-associated single-nucleotide polymorphisms (SNPs) in 12 389 IS cases and 62 004 controls. We also investigated the associations in regions located within 50 kb from the 18 tHcy-related SNPs and the association of a genetic risk score, including the 18 SNPs.

RESULTS: One SNP located in the RASIP1 gene and a cluster of 3 SNPs located at and near SLC17A3 were significantly associated with IS (P<0.0003) after correcting for multiple testing. For stroke subtypes, the sentinel SNP located upstream of MUT was significantly associated with small-vessel disease (P=0.0022), whereas 1 SNP located in MTHFR was significantly associated with large-vessel disease (P=0.00019). A genetic risk score, including the 18 SNPs, did not show significant association with IS or its subtypes.

CONCLUSIONS: This study found several potential associations with IS and its subtypes: an association of an MUT variant with small-vessel disease, an MTHFR variant with large-vessel disease, and associations of RASIP1 and SLC17A3 variants with overall IS.

}, keywords = {Brain Ischemia, Cohort Studies, Europe, Genetic Association Studies, Genetic Loci, Genetic Predisposition to Disease, Genetic Variation, Genome, Homocysteine, Humans, Polymorphism, Single Nucleotide, Risk, Stroke}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.114.005208}, author = {Cotlarciuc, Ioana and Malik, Rainer and Holliday, Elizabeth G and Ahmadi, Kourosh R and Par{\'e}, Guillaume and Psaty, Bruce M and Fornage, Myriam and Hasan, Nazeeha and Rinne, Paul E and Ikram, M Arfan and Markus, Hugh S and Rosand, Jonathan and Mitchell, Braxton D and Kittner, Steven J and Meschia, James F and van Meurs, Joyce B J and Uitterlinden, Andr{\'e} G and Worrall, Bradford B and Dichgans, Martin and Sharma, Pankaj} } @article {6688, title = {Genetic overlap between diagnostic subtypes of ischemic stroke.}, journal = {Stroke}, volume = {46}, year = {2015}, month = {2015 Mar}, pages = {615-9}, abstract = {

BACKGROUND AND PURPOSE: Despite moderate heritability, the phenotypic heterogeneity of ischemic stroke has hampered gene discovery, motivating analyses of diagnostic subtypes with reduced sample sizes. We assessed evidence for a shared genetic basis among the 3 major subtypes: large artery atherosclerosis (LAA), cardioembolism, and small vessel disease (SVD), to inform potential cross-subtype analyses.

METHODS: Analyses used genome-wide summary data for 12 389 ischemic stroke cases (including 2167 LAA, 2405 cardioembolism, and 1854 SVD) and 62 004 controls from the Metastroke consortium. For 4561 cases and 7094 controls, individual-level genotype data were also available. Genetic correlations between subtypes were estimated using linear mixed models and polygenic profile scores. Meta-analysis of a combined LAA-SVD phenotype (4021 cases and 51 976 controls) was performed to identify shared risk alleles.

RESULTS: High genetic correlation was identified between LAA and SVD using linear mixed models (rg=0.96, SE=0.47, P=9{\texttimes}10(-4)) and profile scores (rg=0.72; 95\% confidence interval, 0.52-0.93). Between LAA and cardioembolism and SVD and cardioembolism, correlation was moderate using linear mixed models but not significantly different from zero for profile scoring. Joint meta-analysis of LAA and SVD identified strong association (P=1{\texttimes}10(-7)) for single nucleotide polymorphisms near the opioid receptor μ1 (OPRM1) gene.

CONCLUSIONS: Our results suggest that LAA and SVD, which have been hitherto treated as genetically distinct, may share a substantial genetic component. Combined analyses of LAA and SVD may increase power to identify small-effect alleles influencing shared pathophysiological processes.

}, keywords = {Alleles, Atherosclerosis, Cerebral Small Vessel Diseases, Cohort Studies, Data Interpretation, Statistical, Embolism, Genome-Wide Association Study, Genotype, Humans, Ischemia, Linear Models, Meta-Analysis as Topic, Phenotype, Polymorphism, Single Nucleotide, Stroke}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.114.007930}, author = {Holliday, Elizabeth G and Traylor, Matthew and Malik, Rainer and Bevan, Steve and Falcone, Guido and Hopewell, Jemma C and Cheng, Yu-Ching and Cotlarciuc, Ioana and Bis, Joshua C and Boerwinkle, Eric and Boncoraglio, Giorgio B and Clarke, Robert and Cole, John W and Fornage, Myriam and Furie, Karen L and Ikram, M Arfan and Jannes, Jim and Kittner, Steven J and Lincz, Lisa F and Maguire, Jane M and Meschia, James F and Mosley, Thomas H and Nalls, Mike A and Oldmeadow, Christopher and Parati, Eugenio A and Psaty, Bruce M and Rothwell, Peter M and Seshadri, Sudha and Scott, Rodney J and Sharma, Pankaj and Sudlow, Cathie and Wiggins, Kerri L and Worrall, Bradford B and Rosand, Jonathan and Mitchell, Braxton D and Dichgans, Martin and Markus, Hugh S and Levi, Christopher and Attia, John and Wray, Naomi R} } @article {7683, title = {Multiancestry genome-wide association study of 520,000 subjects identifies 32 loci associated with stroke and stroke subtypes.}, journal = {Nat Genet}, volume = {50}, year = {2018}, month = {2018 Apr}, pages = {524-537}, abstract = {

Stroke has multiple etiologies, but the underlying genes and pathways are largely unknown. We conducted a multiancestry genome-wide-association meta-analysis in 521,612 individuals (67,162 cases and 454,450 controls) and discovered 22 new stroke risk loci, bringing the total to 32. We further found shared genetic variation with related vascular traits, including blood pressure, cardiac traits, and venous thromboembolism, at individual loci (n = 18), and~using genetic risk scores and linkage-disequilibrium-score regression. Several loci exhibited distinct association and pleiotropy patterns for etiological stroke subtypes. Eleven new susceptibility loci indicate mechanisms not previously implicated in stroke pathophysiology, with prioritization of risk variants and genes accomplished through bioinformatics analyses using extensive functional datasets. Stroke risk loci were significantly enriched in drug targets for antithrombotic therapy.

}, issn = {1546-1718}, doi = {10.1038/s41588-018-0058-3}, author = {Malik, Rainer and Chauhan, Ganesh and Traylor, Matthew and Sargurupremraj, Muralidharan and Okada, Yukinori and Mishra, Aniket and Rutten-Jacobs, Loes and Giese, Anne-Katrin and van der Laan, Sander W and Gretarsdottir, Solveig and Anderson, Christopher D and Chong, Michael and Adams, Hieab H H and Ago, Tetsuro and Almgren, Peter and Amouyel, Philippe and Ay, Hakan and Bartz, Traci M and Benavente, Oscar R and Bevan, Steve and Boncoraglio, Giorgio B and Brown, Robert D and Butterworth, Adam S and Carrera, Caty and Carty, Cara L and Chasman, Daniel I and Chen, Wei-Min and Cole, John W and Correa, Adolfo and Cotlarciuc, Ioana and Cruchaga, Carlos and Danesh, John and de Bakker, Paul I W and DeStefano, Anita L and den Hoed, Marcel and Duan, Qing and Engelter, Stefan T and Falcone, Guido J and Gottesman, Rebecca F and Grewal, Raji P and Gudnason, Vilmundur and Gustafsson, Stefan and Haessler, Jeffrey and Harris, Tamara B and Hassan, Ahamad and Havulinna, Aki S and Heckbert, Susan R and Holliday, Elizabeth G and Howard, George and Hsu, Fang-Chi and Hyacinth, Hyacinth I and Ikram, M Arfan and Ingelsson, Erik and Irvin, Marguerite R and Jian, Xueqiu and Jimenez-Conde, Jordi and Johnson, Julie A and Jukema, J Wouter and Kanai, Masahiro and Keene, Keith L and Kissela, Brett M and Kleindorfer, Dawn O and Kooperberg, Charles and Kubo, Michiaki and Lange, Leslie A and Langefeld, Carl D and Langenberg, Claudia and Launer, Lenore J and Lee, Jin-Moo and Lemmens, Robin and Leys, Didier and Lewis, Cathryn M and Lin, Wei-Yu and Lindgren, Arne G and Lorentzen, Erik and Magnusson, Patrik K and Maguire, Jane and Manichaikul, Ani and McArdle, Patrick F and Meschia, James F and Mitchell, Braxton D and Mosley, Thomas H and Nalls, Michael A and Ninomiya, Toshiharu and O{\textquoteright}Donnell, Martin J and Psaty, Bruce M and Pulit, Sara L and Rannikmae, Kristiina and Reiner, Alexander P and Rexrode, Kathryn M and Rice, Kenneth and Rich, Stephen S and Ridker, Paul M and Rost, Natalia S and Rothwell, Peter M and Rotter, Jerome I and Rundek, Tatjana and Sacco, Ralph L and Sakaue, Saori and Sale, Mich{\`e}le M and Salomaa, Veikko and Sapkota, Bishwa R and Schmidt, Reinhold and Schmidt, Carsten O and Schminke, Ulf and Sharma, Pankaj and Slowik, Agnieszka and Sudlow, Cathie L M and Tanislav, Christian and Tatlisumak, Turgut and Taylor, Kent D and Thijs, Vincent N S and Thorleifsson, Gudmar and Thorsteinsdottir, Unnur and Tiedt, Steffen and Trompet, Stella and Tzourio, Christophe and van Duijn, Cornelia M and Walters, Matthew and Wareham, Nicholas J and Wassertheil-Smoller, Sylvia and Wilson, James G and Wiggins, Kerri L and Yang, Qiong and Yusuf, Salim and Bis, Joshua C and Pastinen, Tomi and Ruusalepp, Arno and Schadt, Eric E and Koplev, Simon and Bj{\"o}rkegren, Johan L M and Codoni, Veronica and Civelek, Mete and Smith, Nicholas L and Tr{\'e}gou{\"e}t, David A and Christophersen, Ingrid E and Roselli, Carolina and Lubitz, Steven A and Ellinor, Patrick T and Tai, E Shyong and Kooner, Jaspal S and Kato, Norihiro and He, Jiang and van der Harst, Pim and Elliott, Paul and Chambers, John C and Takeuchi, Fumihiko and Johnson, Andrew D and Sanghera, Dharambir K and Melander, Olle and Jern, Christina and Strbian, Daniel and Fernandez-Cadenas, Israel and Longstreth, W T and Rolfs, Arndt and Hata, Jun and Woo, Daniel and Rosand, Jonathan and Par{\'e}, Guillaume and Hopewell, Jemma C and Saleheen, Danish and Stefansson, Kari and Worrall, Bradford B and Kittner, Steven J and Seshadri, Sudha and Fornage, Myriam and Markus, Hugh S and Howson, Joanna M M and Kamatani, Yoichiro and Debette, Stephanie and Dichgans, Martin and Malik, Rainer and Chauhan, Ganesh and Traylor, Matthew and Sargurupremraj, Muralidharan and Okada, Yukinori and Mishra, Aniket and Rutten-Jacobs, Loes and Giese, Anne-Katrin and van der Laan, Sander W and Gretarsdottir, Solveig and Anderson, Christopher D and Chong, Michael and Adams, Hieab H H and Ago, Tetsuro and Almgren, Peter and Amouyel, Philippe and Ay, Hakan and Bartz, Traci M and Benavente, Oscar R and Bevan, Steve and Boncoraglio, Giorgio B and Brown, Robert D and Butterworth, Adam S and Carrera, Caty and Carty, Cara L and Chasman, Daniel I and Chen, Wei-Min and Cole, John W and Correa, Adolfo and Cotlarciuc, Ioana and Cruchaga, Carlos and Danesh, John and de Bakker, Paul I W and DeStefano, Anita L and Hoed, Marcel den and Duan, Qing and Engelter, Stefan T and Falcone, Guido J and Gottesman, Rebecca F and Grewal, Raji P and Gudnason, Vilmundur and Gustafsson, Stefan and Haessler, Jeffrey and Harris, Tamara B and Hassan, Ahamad and Havulinna, Aki S and Heckbert, Susan R and Holliday, Elizabeth G and Howard, George and Hsu, Fang-Chi and Hyacinth, Hyacinth I and Ikram, M Arfan and Ingelsson, Erik and Irvin, Marguerite R and Jian, Xueqiu and Jimenez-Conde, Jordi and Johnson, Julie A and Jukema, J Wouter and Kanai, Masahiro and Keene, Keith L and Kissela, Brett M and Kleindorfer, Dawn O and Kooperberg, Charles and Kubo, Michiaki and Lange, Leslie A and Langefeld, Carl D and Langenberg, Claudia and Launer, Lenore J and Lee, Jin-Moo and Lemmens, Robin and Leys, Didier and Lewis, Cathryn M and Lin, Wei-Yu and Lindgren, Arne G and Lorentzen, Erik and Magnusson, Patrik K and Maguire, Jane and Manichaikul, Ani and McArdle, Patrick F and Meschia, James F and Mitchell, Braxton D and Mosley, Thomas H and Nalls, Michael A and Ninomiya, Toshiharu and O{\textquoteright}Donnell, Martin J and Psaty, Bruce M and Pulit, Sara L and Rannikmae, Kristiina and Reiner, Alexander P and Rexrode, Kathryn M and Rice, Kenneth and Rich, Stephen S and Ridker, Paul M and Rost, Natalia S and Rothwell, Peter M and Rotter, Jerome I and Rundek, Tatjana and Sacco, Ralph L and Sakaue, Saori and Sale, Mich{\`e}le M and Salomaa, Veikko and Sapkota, Bishwa R and Schmidt, Reinhold and Schmidt, Carsten O and Schminke, Ulf and Sharma, Pankaj and Slowik, Agnieszka and Sudlow, Cathie L M and Tanislav, Christian and Tatlisumak, Turgut and Taylor, Kent D and Thijs, Vincent N S and Thorleifsson, Gudmar and Thorsteinsdottir, Unnur and Tiedt, Steffen and Trompet, Stella and Tzourio, Christophe and van Duijn, Cornelia M and Walters, Matthew and Wareham, Nicholas J and Wassertheil-Smoller, Sylvia and Wilson, James G and Wiggins, Kerri L and Yang, Qiong and Yusuf, Salim and Amin, Najaf and Aparicio, Hugo S and Arnett, Donna K and Attia, John and Beiser, Alexa S and Berr, Claudine and Buring, Julie E and Bustamante, Mariana and Caso, Valeria and Cheng, Yu-Ching and Choi, Seung Hoan and Chowhan, Ayesha and Cullell, Natalia and Dartigues, Jean-Fran{\c c}ois and Delavaran, Hossein and Delgado, Pilar and D{\"o}rr, Marcus and Engstr{\"o}m, Gunnar and Ford, Ian and Gurpreet, Wander S and Hamsten, Anders and Heitsch, Laura and Hozawa, Atsushi and Ibanez, Laura and Ilinca, Andreea and Ingelsson, Martin and Iwasaki, Motoki and Jackson, Rebecca D and Jood, Katarina and Jousilahti, Pekka and Kaffashian, Sara and Kalra, Lalit and Kamouchi, Masahiro and Kitazono, Takanari and Kjartansson, Olafur and Kloss, Manja and Koudstaal, Peter J and Krupinski, Jerzy and Labovitz, Daniel L and Laurie, Cathy C and Levi, Christopher R and Li, Linxin and Lind, Lars and Lindgren, Cecilia M and Lioutas, Vasileios and Liu, Yong Mei and Lopez, Oscar L and Makoto, Hirata and Martinez-Majander, Nicolas and Matsuda, Koichi and Minegishi, Naoko and Montaner, Joan and Morris, Andrew P and Mui{\~n}o, Elena and M{\"u}ller-Nurasyid, Martina and Norrving, Bo and Ogishima, Soichi and Parati, Eugenio A and Peddareddygari, Leema Reddy and Pedersen, Nancy L and Pera, Joanna and Perola, Markus and Pezzini, Alessandro and Pileggi, Silvana and Rabionet, Raquel and Riba-Llena, Iolanda and Ribas{\'e}s, Marta and Romero, Jose R and Roquer, Jaume and Rudd, Anthony G and Sarin, Antti-Pekka and Sarju, Ralhan and Sarnowski, Chloe and Sasaki, Makoto and Satizabal, Claudia L and Satoh, Mamoru and Sattar, Naveed and Sawada, Norie and Sibolt, Gerli and Sigurdsson, {\'A}sgeir and Smith, Albert and Sobue, Kenji and Soriano-T{\'a}rraga, Carolina and Stanne, Tara and Stine, O Colin and Stott, David J and Strauch, Konstantin and Takai, Takako and Tanaka, Hideo and Tanno, Kozo and Teumer, Alexander and Tomppo, Liisa and Torres-Aguila, Nuria P and Touze, Emmanuel and Tsugane, Shoichiro and Uitterlinden, Andr{\'e} G and Valdimarsson, Einar M and van der Lee, Sven J and V{\"o}lzke, Henry and Wakai, Kenji and Weir, David and Williams, Stephen R and Wolfe, Charles D A and Wong, Quenna and Xu, Huichun and Yamaji, Taiki and Sanghera, Dharambir K and Melander, Olle and Jern, Christina and Strbian, Daniel and Fernandez-Cadenas, Israel and Longstreth, W T and Rolfs, Arndt and Hata, Jun and Woo, Daniel and Rosand, Jonathan and Par{\'e}, Guillaume and Hopewell, Jemma C and Saleheen, Danish and Stefansson, Kari and Worrall, Bradford B and Kittner, Steven J and Seshadri, Sudha and Fornage, Myriam and Markus, Hugh S and Howson, Joanna M M and Kamatani, Yoichiro and Debette, Stephanie and Dichgans, Martin} }