@article {7328, title = {Detection of genetic loci associated with plasma fetuin-A: A meta-analysis of genome-wide association studies from the CHARGE Consortium.}, journal = {Hum Mol Genet}, year = {2017}, month = {2017 Apr 03}, abstract = {

Plasma fetuin-A is associated with type 2 diabetes, and AHSG, the gene encoding fetuin-A, has been identified as a susceptibility locus for diabetes and metabolic syndrome. Thus far, unbiased investigations of the genetic determinants of plasma fetuin-A concentrations have not been conducted. We searched for single nucleotide polymorphisms (SNPs) related to fetuin-A concentrations by a genome-wide association study in six population-based studies.We examined the association of fetuin-A levels with \~{} 2.5 million genotyped and imputed SNPs in 9,055 participants of European descent and 2,119 African Americans. In both ethnicities, strongest associations were centered in a region with a high degree of LD near the AHSG locus. Among 136 genome-wide significant (p < 0.05x10-8) SNPs near the AHSG locus, the top SNP was rs4917 (p = 1.27x10-303), a known coding SNP in exon 6 that is associated with a 0.06 g/L (\~{}13\%) lower fetuin-A level. This variant alone explained 14\% of the variation in fetuin-A levels. Analyses conditioned on rs4917 indicated that the strong association with the AHSG locus stems from additional independent associations of multiple variants among European Americans. In conclusion, levels of fetuin-A in plasma are strongly associated with SNPs in its encoding gene, AHSG, but not elsewhere in the genome. Given the strength of the associations observed for multiple independent SNPs, the AHSG gene is an example of a candidate locus suitable for additional investigations including fine mapping to elucidate the biological basis of the findings and further functional experiments to clarify AHSG as a potential therapeutic target.

}, issn = {1460-2083}, doi = {10.1093/hmg/ddx091}, author = {Jensen, Majken K and Jensen, Richard A and Mukamal, Kenneth J and Guo, Xiuqing and Yao, Jie and Sun, Qi and Cornelis, Marilyn and Liu, Yongmei and Chen, Ming-Huei and Kizer, Jorge R and Djouss{\'e}, Luc and Siscovick, David S and Psaty, Bruce M and Zmuda, Joseph M and Rotter, Jerome I and Garcia, Melissa and Harris, Tamara and Chen, Ida and Goodarzi, Mark O and Nalls, Michael A and Keller, Margaux and Arnold, Alice M and Newman, Anne and Hoogeeven, Ron C and Rexrode, Kathryn M and Rimm, Eric B and Hu, Frank B and Vasan, Ramachandran S and Katz, Ronit and Pankow, James S and Ix, Joachim H} } @article {7490, title = {Omega-3 Fatty Acids and Incident Ischemic Stroke and Its Atherothrombotic and Cardioembolic Subtypes in 3 US Cohorts.}, journal = {Stroke}, volume = {48}, year = {2017}, month = {2017 Oct}, pages = {2678-2685}, abstract = {

BACKGROUND AND PURPOSE: The associations of individual long-chain n-3 polyunsaturated fatty acids with incident ischemic stroke and its main subtypes are not well established. We aimed to investigate prospectively the relationship of circulating eicosapentaenoic acid, docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA) with risk of total ischemic, atherothrombotic, and cardioembolic stroke.

METHODS: We measured circulating phospholipid fatty acids at baseline in 3 separate US cohorts: CHS (Cardiovascular Health Study), NHS (Nurses{\textquoteright} Health Study), and HPFS (Health Professionals Follow-Up Study). Ischemic strokes were prospectively adjudicated and classified into atherothrombotic (large- and small-vessel infarctions) or cardioembolic by imaging studies and medical records. Risk according to fatty acid levels was assessed using Cox proportional hazards (CHS) or conditional logistic regression (NHS, HPFS) according to study design. Cohort findings were pooled using fixed-effects meta-analysis.

RESULTS: A total of 953 incident ischemic strokes were identified (408 atherothrombotic, 256 cardioembolic, and 289 undetermined subtypes) during median follow-up of 11.2 years (CHS) and 8.3 years (pooled, NHS and HPFS). After multivariable adjustment, lower risk of total ischemic stroke was seen with higher DPA (highest versus lowest quartiles; pooled hazard ratio [HR], 0.74; 95\% confidence interval [CI], 0.58-0.92) and DHA (HR, 0.80; 95\% CI, 0.64-1.00) but not eicosapentaenoic acid (HR, 0.94; 95\% CI, 0.77-1.19). DHA was associated with lower risk of atherothrombotic stroke (HR, 0.53; 95\% CI, 0.34-0.83) and DPA with lower risk of cardioembolic stroke (HR, 0.58; 95\% CI, 0.37-0.92). Findings in each individual cohort were consistent with pooled results.

CONCLUSIONS: In 3 large US cohorts, higher circulating levels of DHA were inversely associated with incident atherothrombotic stroke and DPA with cardioembolic stroke. These novel findings suggest differential pathways of benefit for DHA, DPA, and eicosapentaenoic acid.

}, keywords = {Adult, Aged, Aged, 80 and over, Biomarkers, Brain Ischemia, Cardiovascular Diseases, Case-Control Studies, Cohort Studies, Fatty Acids, Omega-3, Female, Follow-Up Studies, Humans, Incidence, Intracranial Arteriosclerosis, Intracranial Embolism, Intracranial Thrombosis, Male, Middle Aged, Prospective Studies, Random Allocation, Risk Factors, Stroke, United States}, issn = {1524-4628}, doi = {10.1161/STROKEAHA.117.018235}, author = {Saber, Hamidreza and Yakoob, Mohammad Yawar and Shi, Peilin and Longstreth, W T and Lemaitre, Rozenn N and Siscovick, David and Rexrode, Kathryn M and Willett, Walter C and Mozaffarian, Dariush} } @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} }