@article {1378, title = {Novel loci for adiponectin levels and their influence on type 2 diabetes and metabolic traits: a multi-ethnic meta-analysis of 45,891 individuals.}, journal = {PLoS Genet}, volume = {8}, year = {2012}, month = {2012}, pages = {e1002607}, abstract = {

Circulating levels of adiponectin, a hormone produced predominantly by adipocytes, are highly heritable and are inversely associated with type 2 diabetes mellitus (T2D) and other metabolic traits. We conducted a meta-analysis of genome-wide association studies in 39,883 individuals of European ancestry to identify genes associated with metabolic disease. We identified 8 novel loci associated with adiponectin levels and confirmed 2 previously reported loci (P = 4.5{\texttimes}10(-8)-1.2{\texttimes}10(-43)). Using a novel method to combine data across ethnicities (N = 4,232 African Americans, N = 1,776 Asians, and N = 29,347 Europeans), we identified two additional novel loci. Expression analyses of 436 human adipocyte samples revealed that mRNA levels of 18 genes at candidate regions were associated with adiponectin concentrations after accounting for multiple testing (p<3{\texttimes}10(-4)). We next developed a multi-SNP genotypic risk score to test the association of adiponectin decreasing risk alleles on metabolic traits and diseases using consortia-level meta-analytic data. This risk score was associated with increased risk of T2D (p = 4.3{\texttimes}10(-3), n = 22,044), increased triglycerides (p = 2.6{\texttimes}10(-14), n = 93,440), increased waist-to-hip ratio (p = 1.8{\texttimes}10(-5), n = 77,167), increased glucose two hours post oral glucose tolerance testing (p = 4.4{\texttimes}10(-3), n = 15,234), increased fasting insulin (p = 0.015, n = 48,238), but with lower in HDL-cholesterol concentrations (p = 4.5{\texttimes}10(-13), n = 96,748) and decreased BMI (p = 1.4{\texttimes}10(-4), n = 121,335). These findings identify novel genetic determinants of adiponectin levels, which, taken together, influence risk of T2D and markers of insulin resistance.

}, keywords = {Adiponectin, African Americans, Asian Continental Ancestry Group, Cholesterol, HDL, Diabetes Mellitus, Type 2, European Continental Ancestry Group, Female, Gene Expression, Genetic Predisposition to Disease, Genome-Wide Association Study, Glucose Tolerance Test, Humans, Insulin Resistance, Male, Metabolic Networks and Pathways, Polymorphism, Single Nucleotide, Waist-Hip Ratio}, issn = {1553-7404}, doi = {10.1371/journal.pgen.1002607}, author = {Dastani, Zari and Hivert, Marie-France and Timpson, Nicholas and Perry, John R B and Yuan, Xin and Scott, Robert A and Henneman, Peter and Heid, Iris M and Kizer, Jorge R and Lyytik{\"a}inen, Leo-Pekka and Fuchsberger, Christian and Tanaka, Toshiko and Morris, Andrew P and Small, Kerrin and Isaacs, Aaron and Beekman, Marian and Coassin, Stefan and Lohman, Kurt and Qi, Lu and Kanoni, Stavroula and Pankow, James S and Uh, Hae-Won and Wu, Ying and Bidulescu, Aurelian and Rasmussen-Torvik, Laura J and Greenwood, Celia M T and Ladouceur, Martin and Grimsby, Jonna and Manning, Alisa K and Liu, Ching-Ti and Kooner, Jaspal and Mooser, Vincent E and Vollenweider, Peter and Kapur, Karen A and Chambers, John and Wareham, Nicholas J and Langenberg, Claudia and Frants, Rune and Willems-Vandijk, Ko and Oostra, Ben A and Willems, Sara M and Lamina, Claudia and Winkler, Thomas W and Psaty, Bruce M and Tracy, Russell P and Brody, Jennifer and Chen, Ida and Viikari, Jorma and K{\"a}h{\"o}nen, Mika and Pramstaller, Peter P and Evans, David M and St Pourcain, Beate and Sattar, Naveed and Wood, Andrew R and Bandinelli, Stefania and Carlson, Olga D and Egan, Josephine M and B{\"o}hringer, Stefan and van Heemst, Diana and Kedenko, Lyudmyla and Kristiansson, Kati and Nuotio, Marja-Liisa and Loo, Britt-Marie and Harris, Tamara and Garcia, Melissa and Kanaya, Alka and Haun, Margot and Klopp, Norman and Wichmann, H-Erich and Deloukas, Panos and Katsareli, Efi and Couper, David J and Duncan, Bruce B and Kloppenburg, Margreet and Adair, Linda S and Borja, Judith B and Wilson, James G and Musani, Solomon and Guo, Xiuqing and Johnson, Toby and Semple, Robert and Teslovich, Tanya M and Allison, Matthew A and Redline, Susan and Buxbaum, Sarah G and Mohlke, Karen L and Meulenbelt, Ingrid and Ballantyne, Christie M and Dedoussis, George V and Hu, Frank B and Liu, Yongmei and Paulweber, Bernhard and Spector, Timothy D and Slagboom, P Eline and Ferrucci, Luigi and Jula, Antti and Perola, Markus and Raitakari, Olli and Florez, Jose C and Salomaa, Veikko and Eriksson, Johan G and Frayling, Timothy M and Hicks, Andrew A and Lehtim{\"a}ki, Terho and Smith, George Davey and Siscovick, David S and Kronenberg, Florian and van Duijn, Cornelia and Loos, Ruth J F and Waterworth, Dawn M and Meigs, James B and Dupuis, Jos{\'e}e and Richards, J Brent and Voight, Benjamin F and Scott, Laura J and Steinthorsdottir, Valgerdur and Dina, Christian and Welch, Ryan P and Zeggini, Eleftheria and Huth, Cornelia and Aulchenko, Yurii S and Thorleifsson, Gudmar and McCulloch, Laura J and Ferreira, Teresa and Grallert, Harald and Amin, Najaf and Wu, Guanming and Willer, Cristen J and Raychaudhuri, Soumya and McCarroll, Steve A and Hofmann, Oliver M and Segr{\`e}, Ayellet V and van Hoek, Mandy and Navarro, Pau and Ardlie, Kristin and Balkau, Beverley and Benediktsson, Rafn and Bennett, Amanda J and Blagieva, Roza and Boerwinkle, Eric and Bonnycastle, Lori L and Bostr{\"o}m, Kristina Bengtsson and Bravenboer, Bert and Bumpstead, Suzannah and Burtt, Noel P and Charpentier, Guillaume and Chines, Peter S and Cornelis, Marilyn and Crawford, Gabe and Doney, Alex S F and Elliott, Katherine S and Elliott, Amanda L and Erdos, Michael R and Fox, Caroline S and Franklin, Christopher S and Ganser, Martha and Gieger, Christian and Grarup, Niels and Green, Todd and Griffin, Simon and Groves, Christopher J and Guiducci, Candace and Hadjadj, Samy and Hassanali, Neelam and Herder, Christian and Isomaa, Bo and Jackson, Anne U and Johnson, Paul R V and J{\o}rgensen, Torben and Kao, Wen H L and Kong, Augustine and Kraft, Peter and Kuusisto, Johanna and Lauritzen, Torsten and Li, Man and Lieverse, Aloysius and Lindgren, Cecilia M and Lyssenko, Valeriya and Marre, Michel and Meitinger, Thomas and Midthjell, Kristian and Morken, Mario A and Narisu, Narisu and Nilsson, Peter and Owen, Katharine R and Payne, Felicity and Petersen, Ann-Kristin and Platou, Carl and Proen{\c c}a, Christine and Prokopenko, Inga and Rathmann, Wolfgang and Rayner, N William and Robertson, Neil R and Rocheleau, Ghislain and Roden, Michael and Sampson, Michael J and Saxena, Richa and Shields, Beverley M and Shrader, Peter and Sigurdsson, Gunnar and Spars{\o}, Thomas and Strassburger, Klaus and Stringham, Heather M and Sun, Qi and Swift, Amy J and Thorand, Barbara and Tichet, Jean and Tuomi, Tiinamaija and van Dam, Rob M and van Haeften, Timon W and van Herpt, Thijs and van Vliet-Ostaptchouk, Jana V and Walters, G Bragi and Weedon, Michael N and Wijmenga, Cisca and Witteman, Jacqueline and Bergman, Richard N and Cauchi, Stephane and Collins, Francis S and Gloyn, Anna L and Gyllensten, Ulf and Hansen, Torben and Hide, Winston A and Hitman, Graham A and Hofman, Albert and Hunter, David J and Hveem, Kristian and Laakso, Markku and Morris, Andrew D and Palmer, Colin N A and Rudan, Igor and Sijbrands, Eric and Stein, Lincoln D and Tuomilehto, Jaakko and Uitterlinden, Andre and Walker, Mark and Watanabe, Richard M and Abecasis, Goncalo R and Boehm, Bernhard O and Campbell, Harry and Daly, Mark J and Hattersley, Andrew T and Pedersen, Oluf and Barroso, In{\^e}s and Groop, Leif and Sladek, Rob and Thorsteinsdottir, Unnur and Wilson, James F and Illig, Thomas and Froguel, Philippe and van Duijn, Cornelia M and Stefansson, Kari and Altshuler, David and Boehnke, Michael and McCarthy, Mark I and Soranzo, Nicole and Wheeler, Eleanor and Glazer, Nicole L and Bouatia-Naji, Nabila and M{\"a}gi, Reedik and Randall, Joshua and Elliott, Paul and Rybin, Denis and Dehghan, Abbas and Hottenga, Jouke Jan and Song, Kijoung and Goel, Anuj and Lajunen, Taina and Doney, Alex and Cavalcanti-Proen{\c c}a, Christine and Kumari, Meena and Timpson, Nicholas J and Zabena, Carina and Ingelsson, Erik and An, Ping and O{\textquoteright}Connell, Jeffrey and Luan, Jian{\textquoteright}an and Elliott, Amanda and McCarroll, Steven A and Roccasecca, Rosa Maria and Pattou, Fran{\c c}ois and Sethupathy, Praveen and Ariyurek, Yavuz and Barter, Philip and Beilby, John P and Ben-Shlomo, Yoav and Bergmann, Sven and Bochud, Murielle and Bonnefond, Am{\'e}lie and Borch-Johnsen, Knut and B{\"o}ttcher, Yvonne and Brunner, Eric and Bumpstead, Suzannah J and Chen, Yii-Der Ida and Chines, Peter and Clarke, Robert and Coin, Lachlan J M and Cooper, Matthew N and Crisponi, Laura and Day, Ian N M and de Geus, Eco J C and Delplanque, Jerome and Fedson, Annette C and Fischer-Rosinsky, Antje and Forouhi, Nita G and Franzosi, Maria Grazia and Galan, Pilar and Goodarzi, Mark O and Graessler, J{\"u}rgen and Grundy, Scott and Gwilliam, Rhian and Hallmans, G{\"o}ran and Hammond, Naomi and Han, Xijing and Hartikainen, Anna-Liisa and Hayward, Caroline and Heath, Simon C and Hercberg, Serge and Hillman, David R and Hingorani, Aroon D and Hui, Jennie and Hung, Joe and Kaakinen, Marika and Kaprio, Jaakko and Kesaniemi, Y Antero and Kivimaki, Mika and Knight, Beatrice and Koskinen, Seppo and Kovacs, Peter and Kyvik, Kirsten Ohm and Lathrop, G Mark and Lawlor, Debbie A and Le Bacquer, Olivier and Lecoeur, C{\'e}cile and Li, Yun and Mahley, Robert and Mangino, Massimo and Mart{\'\i}nez-Larrad, Mar{\'\i}a Teresa and McAteer, Jarred B and McPherson, Ruth and Meisinger, Christa and Melzer, David and Meyre, David and Mitchell, Braxton D and Mukherjee, Sutapa and Naitza, Silvia and Neville, Matthew J and Orr{\`u}, Marco and Pakyz, Ruth and Paolisso, Giuseppe and Pattaro, Cristian and Pearson, Daniel and Peden, John F and Pedersen, Nancy L and Pfeiffer, Andreas F H and Pichler, Irene and Polasek, Ozren and Posthuma, Danielle and Potter, Simon C and Pouta, Anneli and Province, Michael A and Rayner, Nigel W and Rice, Kenneth and Ripatti, Samuli and Rivadeneira, Fernando and Rolandsson, Olov and Sandbaek, Annelli and Sandhu, Manjinder and Sanna, Serena and Sayer, Avan Aihie and Scheet, Paul and Seedorf, Udo and Sharp, Stephen J and Shields, Beverley and Sigur{\dh}sson, Gunnar and Sijbrands, Eric J G and Silveira, Angela and Simpson, Laila and Singleton, Andrew and Smith, Nicholas L and Sovio, Ulla and Swift, Amy and Syddall, Holly and Syv{\"a}nen, Ann-Christine and T{\"o}njes, Anke and Uitterlinden, Andr{\'e} G and van Dijk, Ko Willems and Varma, Dhiraj and Visvikis-Siest, Sophie and Vitart, Veronique and Vogelzangs, Nicole and Waeber, G{\'e}rard and Wagner, Peter J and Walley, Andrew and Ward, Kim L and Watkins, Hugh and Wild, Sarah H and Willemsen, Gonneke and Witteman, Jaqueline C M and Yarnell, John W G and Zelenika, Diana and Zethelius, Bj{\"o}rn and Zhai, Guangju and Zhao, Jing Hua and Zillikens, M Carola and Borecki, Ingrid B and Meneton, Pierre and Magnusson, Patrik K E and Nathan, David M and Williams, Gordon H and Silander, Kaisa and Bornstein, Stefan R and Schwarz, Peter and Spranger, Joachim and Karpe, Fredrik and Shuldiner, Alan R and Cooper, Cyrus and Serrano-R{\'\i}os, Manuel and Lind, Lars and Palmer, Lyle J and Hu, Frank B and Franks, Paul W and Ebrahim, Shah and Marmot, Michael and Kao, W H Linda and Pramstaller, Peter Paul and Wright, Alan F and Stumvoll, Michael and Hamsten, Anders and Buchanan, Thomas A and Valle, Timo T and Rotter, Jerome I and Penninx, Brenda W J H and Boomsma, Dorret I and Cao, Antonio and Scuteri, Angelo and Schlessinger, David and Uda, Manuela and Ruokonen, Aimo and Jarvelin, Marjo-Riitta and Peltonen, Leena and Mooser, Vincent and Sladek, Robert and Musunuru, Kiran and Smith, Albert V and Edmondson, Andrew C and Stylianou, Ioannis M and Koseki, Masahiro and Pirruccello, James P and Chasman, Daniel I and Johansen, Christopher T and Fouchier, Sigrid W and Peloso, Gina M and Barbalic, Maja and Ricketts, Sally L and Bis, Joshua C and Feitosa, Mary F and Orho-Melander, Marju and Melander, Olle and Li, Xiaohui and Li, Mingyao and Cho, Yoon Shin and Go, Min Jin and Kim, Young Jin and Lee, Jong-Young and Park, Taesung and Kim, Kyunga and Sim, Xueling and Ong, Rick Twee-Hee and Croteau-Chonka, Damien C and Lange, Leslie A and Smith, Joshua D and Ziegler, Andreas and Zhang, Weihua and Zee, Robert Y L and Whitfield, John B and Thompson, John R and Surakka, Ida and Spector, Tim D and Smit, Johannes H and Sinisalo, Juha and Scott, James and Saharinen, Juha and Sabatti, Chiara and Rose, Lynda M and Roberts, Robert and Rieder, Mark and Parker, Alex N and Par{\'e}, Guillaume and O{\textquoteright}Donnell, Christopher J and Nieminen, Markku S and Nickerson, Deborah A and Montgomery, Grant W and McArdle, Wendy and Masson, David and Martin, Nicholas G and Marroni, Fabio and Lucas, Gavin and Luben, Robert and Lokki, Marja-Liisa and Lettre, Guillaume and Launer, Lenore J and Lakatta, Edward G and Laaksonen, Reijo and Kyvik, Kirsten O and K{\"o}nig, Inke R and Khaw, Kay-Tee and Kaplan, Lee M and Johansson, Asa and Janssens, A Cecile J W and Igl, Wilmar and Hovingh, G Kees and Hengstenberg, Christian and Havulinna, Aki S and Hastie, Nicholas D and Harris, Tamara B and Haritunians, Talin and Hall, Alistair S and Groop, Leif C and Gonzalez, Elena and Freimer, Nelson B and Erdmann, Jeanette and Ejebe, Kenechi G and D{\"o}ring, Angela and Dominiczak, Anna F and Demissie, Serkalem and Deloukas, Panagiotis and de Faire, Ulf and Crawford, Gabriel and Chen, Yii-der I and Caulfield, Mark J and Boekholdt, S Matthijs and Assimes, Themistocles L and Quertermous, Thomas and Seielstad, Mark and Wong, Tien Y and Tai, E-Shyong and Feranil, Alan B and Kuzawa, Christopher W and Taylor, Herman A and Gabriel, Stacey B and Holm, Hilma and Gudnason, Vilmundur and Krauss, Ronald M and Ordovas, Jose M and Munroe, Patricia B and Kooner, Jaspal S and Tall, Alan R and Hegele, Robert A and Kastelein, John J P and Schadt, Eric E and Strachan, David P and Reilly, Muredach P and Samani, Nilesh J and Schunkert, Heribert and Cupples, L Adrienne and Sandhu, Manjinder S and Ridker, Paul M and Rader, Daniel J and Kathiresan, Sekar} } @article {6687, title = {Dietary fatty acids modulate associations between genetic variants and circulating fatty acids in plasma and erythrocyte membranes: Meta-analysis of nine studies in the CHARGE consortium.}, journal = {Mol Nutr Food Res}, volume = {59}, year = {2015}, month = {2015 Jul}, pages = {1373-83}, abstract = {

SCOPE: Tissue concentrations of omega-3 fatty acids may reduce cardiovascular disease risk, and genetic variants are associated with circulating fatty acids concentrations. Whether dietary fatty acids interact with genetic variants to modify circulating omega-3 fatty acids is unclear. We evaluated interactions between genetic variants and fatty acid intakes for circulating alpha-linoleic acid, eicosapentaenoic acid, docosahexaenoic acid, and docosapentaenoic acid.

METHODS AND RESULTS: We conducted meta-analyses (N = 11~668) evaluating interactions between dietary fatty acids and genetic variants (rs174538 and rs174548 in FADS1 (fatty acid desaturase 1), rs7435 in AGPAT3 (1-acyl-sn-glycerol-3-phosphate), rs4985167 in PDXDC1 (pyridoxal-dependent decarboxylase domain-containing 1), rs780094 in GCKR (glucokinase regulatory protein), and rs3734398 in ELOVL2 (fatty acid elongase 2)). Stratification by measurement compartment (plasma versus erthyrocyte) revealed compartment-specific interactions between FADS1 rs174538 and rs174548 and dietary alpha-linolenic acid and linoleic acid for docosahexaenoic acid and docosapentaenoic acid.

CONCLUSION: Our findings reinforce earlier reports that genetically based differences in circulating fatty acids may be partially due to differences in the conversion of fatty acid precursors. Further, fatty acids measurement compartment may modify gene-diet relationships, and considering compartment may improve the detection of gene-fatty acids interactions for circulating fatty acid outcomes.

}, keywords = {Acetyltransferases, Acyltransferases, Adaptor Proteins, Signal Transducing, Carboxy-Lyases, Diet, Docosahexaenoic Acids, Eicosapentaenoic Acid, Erythrocyte Membrane, Fatty Acid Desaturases, Fatty Acids, Fatty Acids, Omega-3, Female, Humans, Male, Middle Aged, Polymorphism, Single Nucleotide}, issn = {1613-4133}, doi = {10.1002/mnfr.201400734}, author = {Smith, Caren E and Follis, Jack L and Nettleton, Jennifer A and Foy, Millennia and Wu, Jason H Y and Ma, Yiyi and Tanaka, Toshiko and Manichakul, Ani W and Wu, Hongyu and Chu, Audrey Y and Steffen, Lyn M and Fornage, Myriam and Mozaffarian, Dariush and Kabagambe, Edmond K and Ferruci, Luigi and Chen, Yii-Der Ida and Rich, Stephen S and Djouss{\'e}, Luc and Ridker, Paul M and Tang, Weihong and McKnight, Barbara and Tsai, Michael Y and Bandinelli, Stefania and Rotter, Jerome I and Hu, Frank B and Chasman, Daniel I and Psaty, Bruce M and Arnett, Donna K and King, Irena B and Sun, Qi and Wang, Lu and Lumley, Thomas and Chiuve, Stephanie E and Siscovick, David S and Ordovas, Jose M and Lemaitre, Rozenn N} } @article {6615, title = {Genetic loci associated with circulating levels of very long-chain saturated fatty acids.}, journal = {J Lipid Res}, volume = {56}, year = {2015}, month = {2015 Jan}, pages = {176-84}, abstract = {

Very long-chain saturated fatty acids (VLSFAs) are saturated fatty acids with 20 or more carbons. In contrast to the more abundant saturated fatty acids, such as palmitic acid, there is growing evidence that circulating VLSFAs may have beneficial biological properties. Whether genetic factors influence circulating levels of VLSFAs is not known. We investigated the association of common genetic variation with plasma phospholipid/erythrocyte levels of three VLSFAs by performing genome-wide association studies in seven population-based cohorts comprising 10,129 subjects of European ancestry. We observed associations of circulating VLSFA concentrations with common variants in two genes, serine palmitoyl-transferase long-chain base subunit 3 (SPTLC3), a gene involved in the rate-limiting step of de novo sphingolipid synthesis, and ceramide synthase 4 (CERS4). The SPTLC3 variant at rs680379 was associated with higher arachidic acid (20:0 , P = 5.81 {\texttimes} 10(-13)). The CERS4 variant at rs2100944 was associated with higher levels of 20:0 (P = 2.65 {\texttimes} 10(-40)) and in analyses that adjusted for 20:0, with lower levels of behenic acid (P = 4.22 {\texttimes} 10(-26)) and lignoceric acid (P = 3.20 {\texttimes} 10(-21)). These novel associations suggest an inter-relationship of circulating VLSFAs and sphingolipid synthesis.

}, keywords = {Cohort Studies, Fatty Acids, Genetic Loci, Genetic Variation, Genome-Wide Association Study, Humans}, issn = {1539-7262}, doi = {10.1194/jlr.M052456}, author = {Lemaitre, Rozenn N and King, Irena B and Kabagambe, Edmond K and Wu, Jason H Y and McKnight, Barbara and Manichaikul, Ani and Guan, Weihua and Sun, Qi and Chasman, Daniel I and Foy, Millennia and Wang, Lu and Zhu, Jingwen and Siscovick, David S and Tsai, Michael Y and Arnett, Donna K and Psaty, Bruce M and Djouss{\'e}, Luc and Chen, Yii-der I and Tang, Weihong and Weng, Lu-Chen and Wu, Hongyu and Jensen, Majken K and Chu, Audrey Y and Jacobs, David R and Rich, Stephen S and Mozaffarian, Dariush and Steffen, Lyn and Rimm, Eric B and Hu, Frank B and Ridker, Paul M and Fornage, Myriam and Friedlander, Yechiel} } @article {6685, title = {Genetic loci associated with circulating phospholipid trans fatty acids: a meta-analysis of genome-wide association studies from the CHARGE Consortium.}, journal = {Am J Clin Nutr}, volume = {101}, year = {2015}, month = {2015 Feb}, pages = {398-406}, abstract = {

BACKGROUND: Circulating trans fatty acids (TFAs), which cannot be synthesized by humans, are linked to adverse health outcomes. Although TFAs are obtained from diet, little is known about subsequent influences (e.g., relating to incorporation, metabolism, or intercompetition with other fatty acids) that could alter circulating concentrations and possibly modulate or mediate impacts on health.

OBJECTIVE: The objective was to elucidate novel biologic pathways that may influence circulating TFAs by evaluating associations between common genetic variation and TFA biomarkers.

DESIGN: We performed meta-analyses using 7 cohorts of European-ancestry participants (n = 8013) having measured genome-wide variation in single-nucleotide polymorphisms (SNPs) and circulating TFA biomarkers (erythrocyte or plasma phospholipids), including trans-16:1n-7, total trans-18:1, trans/cis-18:2, cis/trans-18:2, and trans/trans-18:2. We further evaluated SNPs with genome-wide significant associations among African Americans (n = 1082), Chinese Americans (n = 669), and Hispanic Americans (n = 657) from 2 of these cohorts.

RESULTS: Among European-ancestry participants, 31 SNPs in or near the fatty acid desaturase (FADS) 1 and 2 cluster were associated with cis/trans-18:2; a top hit was rs174548 (β = 0.0035, P = 4.90 {\texttimes} 10(-15)), an SNP previously associated with circulating n-3 and n-6 polyunsaturated fatty acid concentrations. No significant association was identified for other TFAs. rs174548 in FADS1/2 was also associated with cis/trans-18:2 in Hispanic Americans (β = 0.0053, P = 1.05 {\texttimes} 10(-6)) and Chinese Americans (β = 0.0028, P = 0.002) but not African Americans (β = 0.0009, P = 0.34); however, in African Americans, fine mapping identified a top hit in FADS2 associated with cis/trans-18:2 (rs174579: β = 0.0118, P = 4.05 {\texttimes} 10(-5)). The association between rs174548 and cis/trans-18:2 remained significant after further adjustment for individual circulating n-3 and n-6 fatty acids, except arachidonic acid. After adjustment for arachidonic acid concentrations, the association between rs174548 and cis/trans-18:2 was nearly eliminated in European-ancestry participants (β-coefficient reduced by 86\%), with similar reductions in Hispanic Americans and Chinese Americans.

CONCLUSIONS: Our findings provide novel evidence for genetic regulation of cis/trans-18:2 by the FADS1/2 cluster and suggest that this regulation may be influenced/mediated by concentrations of arachidonic acid, an n-6 polyunsaturated fat.

}, keywords = {African Americans, Arachidonic Acid, Asian Americans, Biomarkers, European Continental Ancestry Group, Fatty Acids, Omega-6, Gene Frequency, Genetic Association Studies, Genetic Loci, Genotyping Techniques, Humans, Phospholipids, Polymorphism, Single Nucleotide, Trans Fatty Acids}, issn = {1938-3207}, doi = {10.3945/ajcn.114.094557}, author = {Mozaffarian, Dariush and Kabagambe, Edmond K and Johnson, Catherine O and Lemaitre, Rozenn N and Manichaikul, Ani and Sun, Qi and Foy, Millennia and Wang, Lu and Wiener, Howard and Irvin, Marguerite R and Rich, Stephen S and Wu, Hongyu and Jensen, Majken K and Chasman, Daniel I and Chu, Audrey Y and Fornage, Myriam and Steffen, Lyn and King, Irena B and McKnight, Barbara and Psaty, Bruce M and Djouss{\'e}, Luc and Chen, Ida Y-D and Wu, Jason H Y and Siscovick, David S and Ridker, Paul M and Tsai, Michael Y and Rimm, Eric B and Hu, Frank B and Arnett, Donna K} } @article {6684, title = {Genome-wide studies of verbal declarative memory in nondemented older people: the Cohorts for Heart and Aging Research in Genomic Epidemiology consortium.}, journal = {Biol Psychiatry}, volume = {77}, year = {2015}, month = {2015 Apr 15}, pages = {749-63}, abstract = {

BACKGROUND: Memory performance in older persons can reflect genetic influences on cognitive function and dementing processes. We aimed to identify genetic contributions to verbal declarative memory in a community setting.

METHODS: We conducted genome-wide association studies for paragraph or word list delayed recall in 19 cohorts from the Cohorts for Heart and Aging Research in Genomic Epidemiology consortium, comprising 29,076 dementia- and stroke-free individuals of European descent, aged >=45 years. Replication of suggestive associations (p < 5 {\texttimes} 10(-6)) was sought in 10,617 participants of European descent, 3811 African-Americans, and 1561 young adults.

RESULTS: rs4420638, near APOE, was associated with poorer delayed recall performance in discovery (p = 5.57 {\texttimes} 10(-10)) and replication cohorts (p = 5.65 {\texttimes} 10(-8)). This association was stronger for paragraph than word list delayed recall and in the oldest persons. Two associations with specific tests, in subsets of the total sample, reached genome-wide significance in combined analyses of discovery and replication (rs11074779 [HS3ST4], p = 3.11 {\texttimes} 10(-8), and rs6813517 [SPOCK3], p = 2.58 {\texttimes} 10(-8)) near genes involved in immune response. A genetic score combining 58 independent suggestive memory risk variants was associated with increasing Alzheimer disease pathology in 725 autopsy samples. Association of memory risk loci with gene expression in 138 human hippocampus samples showed cis-associations with WDR48 and CLDN5, both related to ubiquitin metabolism.

CONCLUSIONS: This largest study to date exploring the genetics of memory function in ~40,000 older individuals revealed genome-wide associations and suggested an involvement of immune and ubiquitin pathways.

}, keywords = {Aged, Aged, 80 and over, Aging, Apolipoproteins E, Claudin-5, Cohort Studies, Female, Genome-Wide Association Study, Genotype, Humans, Male, Memory Disorders, Middle Aged, Polymorphism, Single Nucleotide, Proteins, Proteoglycans, Regression Analysis, Sulfotransferases, Verbal Learning}, issn = {1873-2402}, doi = {10.1016/j.biopsych.2014.08.027}, author = {Debette, Stephanie and Ibrahim Verbaas, Carla A and Bressler, Jan and Schuur, Maaike and Smith, Albert and Bis, Joshua C and Davies, Gail and Wolf, Christiane and Gudnason, Vilmundur and Chibnik, Lori B and Yang, Qiong and DeStefano, Anita L and de Quervain, Dominique J F and Srikanth, Velandai and Lahti, Jari and Grabe, Hans J and Smith, Jennifer A and Priebe, Lutz and Yu, Lei and Karbalai, Nazanin and Hayward, Caroline and Wilson, James F and Campbell, Harry and Petrovic, Katja and Fornage, Myriam and Chauhan, Ganesh and Yeo, Robin and Boxall, Ruth and Becker, James and Stegle, Oliver and Mather, Karen A and Chouraki, Vincent and Sun, Qi and Rose, Lynda M and Resnick, Susan and Oldmeadow, Christopher and Kirin, Mirna and Wright, Alan F and Jonsdottir, Maria K and Au, Rhoda and Becker, Albert and Amin, Najaf and Nalls, Mike A and Turner, Stephen T and Kardia, Sharon L R and Oostra, Ben and Windham, Gwen and Coker, Laura H and Zhao, Wei and Knopman, David S and Heiss, Gerardo and Griswold, Michael E and Gottesman, Rebecca F and Vitart, Veronique and Hastie, Nicholas D and Zgaga, Lina and Rudan, Igor and Polasek, Ozren and Holliday, Elizabeth G and Schofield, Peter and Choi, Seung Hoan and Tanaka, Toshiko and An, Yang and Perry, Rodney T and Kennedy, Richard E and Sale, Mich{\`e}le M and Wang, Jing and Wadley, Virginia G and Liewald, David C and Ridker, Paul M and Gow, Alan J and Pattie, Alison and Starr, John M and Porteous, David and Liu, Xuan and Thomson, Russell and Armstrong, Nicola J and Eiriksdottir, Gudny and Assareh, Arezoo A and Kochan, Nicole A and Widen, Elisabeth and Palotie, Aarno and Hsieh, Yi-Chen and Eriksson, Johan G and Vogler, Christian and van Swieten, John C and Shulman, Joshua M and Beiser, Alexa and Rotter, Jerome and Schmidt, Carsten O and Hoffmann, Wolfgang and N{\"o}then, Markus M and Ferrucci, Luigi and Attia, John and Uitterlinden, Andr{\'e} G and Amouyel, Philippe and Dartigues, Jean-Fran{\c c}ois and Amieva, H{\'e}l{\`e}ne and R{\"a}ikk{\"o}nen, Katri and Garcia, Melissa and Wolf, Philip A and Hofman, Albert and Longstreth, W T and Psaty, Bruce M and Boerwinkle, Eric and DeJager, Philip L and Sachdev, Perminder S and Schmidt, Reinhold and Breteler, Monique M B and Teumer, Alexander and Lopez, Oscar L and Cichon, Sven and Chasman, Daniel I and Grodstein, Francine and M{\"u}ller-Myhsok, Bertram and Tzourio, Christophe and Papassotiropoulos, Andreas and Bennett, David A and Ikram, M Arfan and Deary, Ian J and van Duijn, Cornelia M and Launer, Lenore and Fitzpatrick, Annette L and Seshadri, Sudha and Mosley, Thomas H} } @article {7147, title = {Genomewide meta-analysis identifies loci associated with IGF-I and IGFBP-3 levels with impact on age-related traits.}, journal = {Aging Cell}, volume = {15}, year = {2016}, month = {2016 Oct}, pages = {811-24}, abstract = {

The growth hormone/insulin-like growth factor (IGF) axis can be manipulated in animal models to promote longevity, and IGF-related proteins including IGF-I and IGF-binding protein-3 (IGFBP-3) have also been implicated in risk of human diseases including cardiovascular diseases, diabetes, and cancer. Through genomewide association study of up to 30~884 adults of European ancestry from 21 studies, we confirmed and extended the list of previously identified loci associated with circulating IGF-I and IGFBP-3 concentrations (IGF1, IGFBP3, GCKR, TNS3, GHSR, FOXO3, ASXL2, NUBP2/IGFALS, SORCS2, and CELSR2). Significant sex interactions, which were characterized by different genotype-phenotype associations between men and women, were found only for associations of IGFBP-3 concentrations with SNPs at the loci IGFBP3 and SORCS2. Analyses of SNPs, gene expression, and protein levels suggested that interplay between IGFBP3 and genes within the NUBP2 locus (IGFALS and HAGH) may affect circulating IGF-I and IGFBP-3 concentrations. The IGF-I-decreasing allele of SNP rs934073, which is an eQTL of ASXL2, was associated with lower adiposity and higher likelihood of survival beyond 90~years. The known longevity-associated variant rs2153960 (FOXO3) was observed to be a genomewide significant SNP for IGF-I concentrations. Bioinformatics analysis suggested enrichment of putative regulatory elements among these IGF-I- and IGFBP-3-associated loci, particularly of rs646776 at CELSR2. In conclusion, this study identified several loci associated with circulating IGF-I and IGFBP-3 concentrations and provides clues to the potential role of the IGF axis in mediating effects of known (FOXO3) and novel (ASXL2) longevity-associated loci.

}, issn = {1474-9726}, doi = {10.1111/acel.12490}, author = {Teumer, Alexander and Qi, Qibin and Nethander, Maria and Aschard, Hugues and Bandinelli, Stefania and Beekman, Marian and Berndt, Sonja I and Bidlingmaier, Martin and Broer, Linda and Cappola, Anne and Ceda, Gian Paolo and Chanock, Stephen and Chen, Ming-Huei and Chen, Tai C and Chen, Yii-Der Ida and Chung, Jonathan and Del Greco Miglianico, Fabiola and Eriksson, Joel and Ferrucci, Luigi and Friedrich, Nele and Gnewuch, Carsten and Goodarzi, Mark O and Grarup, Niels and Guo, Tingwei and Hammer, Elke and Hayes, Richard B and Hicks, Andrew A and Hofman, Albert and Houwing-Duistermaat, Jeanine J and Hu, Frank and Hunter, David J and Husemoen, Lise L and Isaacs, Aaron and Jacobs, Kevin B and Janssen, Joop A M J L and Jansson, John-Olov and Jehmlich, Nico and Johnson, Simon and Juul, Anders and Karlsson, Magnus and Kilpel{\"a}inen, Tuomas O and Kovacs, Peter and Kraft, Peter and Li, Chao and Linneberg, Allan and Liu, Yongmei and Loos, Ruth J F and Lorentzon, Mattias and Lu, Yingchang and Maggio, Marcello and M{\"a}gi, Reedik and Meigs, James and Mellstr{\"o}m, Dan and Nauck, Matthias and Newman, Anne B and Pollak, Michael N and Pramstaller, Peter P and Prokopenko, Inga and Psaty, Bruce M and Reincke, Martin and Rimm, Eric B and Rotter, Jerome I and Saint Pierre, Aude and Schurmann, Claudia and Seshadri, Sudha and Sj{\"o}gren, Klara and Slagboom, P Eline and Strickler, Howard D and Stumvoll, Michael and Suh, Yousin and Sun, Qi and Zhang, Cuilin and Svensson, Johan and Tanaka, Toshiko and Tare, Archana and T{\"o}njes, Anke and Uh, Hae-Won and van Duijn, Cornelia M and van Heemst, Diana and Vandenput, Liesbeth and Vasan, Ramachandran S and V{\"o}lker, Uwe and Willems, Sara M and Ohlsson, Claes and Wallaschofski, Henri and Kaplan, Robert C} } @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 {7346, title = {Discovery and fine-mapping of loci associated with monounsaturated fatty acids through trans-ethnic meta-analysis in Chinese and European populations.}, journal = {J Lipid Res}, year = {2017}, month = {2017 Mar 15}, abstract = {

Monounsaturated fatty acids (MUFAs) are unsaturated fatty acids with one double bond and are derived from endogenous synthesis and dietary intake. Accumulating evidence has suggested that plasma and erythrocyte MUFA levels were associated with cardiometabolic disorders including cardiovascular disease (CVD), type 2 diabetes (T2D) and metabolic syndrome (MS). Previous genome-wide association studies (GWAS) have identified seven loci for plasma and erythrocyte palmitoleic acid and oleic acid levels in populations of European origin. To identify additional MUFA-associated loci and the potential causal variant at each locus, we performed ethnic-specific GWAS meta-analyses and trans-ethnic meta-analyses in over 15,000 participants of Chinese- and European-ancestry. We identified novel genome-wide significant associations for vaccenic acid at FADS1/2 and PKD2L1 [log10(Bayes factor)>=8.07] and for gondoic acid at FADS1/2 and GCKR [log10(Bayes factor)>=61619;6.22], and also observed improved fine-mapping resolutions at FADS1/2 and GCKR loci. The greatest improvement was observed at GCKR, where the number of variants in the 99\% credible set was reduced from 16 (covering ~95kb) to five (covering ~20kb, including a missense variant rs1260326) after trans-ethnic meta-analysis. We also confirmed the previously reported associations of PKD2L1, FADS1/2, GCKR and HIF1AN with palmitoleic acid and of FADS1/2 and LPCAT3 with oleic acid in the Chinese-specific GWAS and trans-ethnic meta-analyses. Pathway-based analyses suggested that the identified loci were enriched in unsaturated fatty acids metabolism and signaling pathways. Our findings provided novel insight into the genetic basis relevant to MUFA metabolism and biology.

}, issn = {1539-7262}, doi = {10.1194/jlr.P071860}, author = {Hu, Yao and Tanaka, Toshiko and Zhu, Jingwen and Guan, Weihua and Wu, Jason H Y and Psaty, Bruce M and McKnight, Barbara and King, Irena B and Sun, Qi and Richard, Melissa and Manichaikul, Ani and Frazier-Wood, Alexis C and Kabagambe, Edmond K and Hopkins, Paul N and Ordovas, Jose M and Ferrucci, Luigi and Bandinelli, Stefania and Arnett, Donna K and Chen, Yii-der I and Liang, Shuang and Siscovick, David S and Tsai, Michael Y and Rich, Stephen S and Fornage, Myriam and Hu, Frank B and Rimm, Eric B and Jensen, Majken K and Lemaitre, Rozenn N and Mozaffarian, Dariush and Steffen, Lyn M and Morris, Andrew P and Li, Huaixing and Lin, Xu} } @article {8041, title = {Fatty acid biomarkers of dairy fat consumption and incidence of type 2 diabetes: A pooled analysis of prospective cohort studies.}, journal = {PLoS Med}, volume = {15}, year = {2018}, month = {2018 10}, pages = {e1002670}, abstract = {

BACKGROUND: We aimed to investigate prospective associations of circulating or adipose tissue odd-chain fatty acids 15:0 and 17:0 and trans-palmitoleic acid, t16:1n-7, as potential biomarkers of dairy fat intake, with incident type 2 diabetes (T2D).

METHODS AND FINDINGS: Sixteen prospective cohorts from 12 countries (7 from the United States, 7 from Europe, 1 from Australia, 1 from Taiwan) performed new harmonised individual-level analysis for the prospective associations according to a standardised plan. In total, 63,682 participants with a broad range of baseline ages and BMIs and 15,180 incident cases of T2D over the average of 9 years of follow-up were evaluated. Study-specific results were pooled using inverse-variance-weighted meta-analysis. Prespecified interactions by age, sex, BMI, and race/ethnicity were explored in each cohort and were meta-analysed. Potential heterogeneity by cohort-specific characteristics (regions, lipid compartments used for fatty acid assays) was assessed with metaregression. After adjustment for potential confounders, including measures of adiposity (BMI, waist circumference) and lipogenesis (levels of palmitate, triglycerides), higher levels of 15:0, 17:0, and t16:1n-7 were associated with lower incidence of T2D. In the most adjusted model, the hazard ratio (95\% CI) for incident T2D per cohort-specific 10th to 90th percentile range of 15:0 was 0.80 (0.73-0.87); of 17:0, 0.65 (0.59-0.72); of t16:1n7, 0.82 (0.70-0.96); and of their sum, 0.71 (0.63-0.79). In exploratory analyses, similar associations for 15:0, 17:0, and the sum of all three fatty acids were present in both genders but stronger in women than in men (pinteraction < 0.001). Whereas studying associations with biomarkers has several advantages, as limitations, the biomarkers do not distinguish between different food sources of dairy fat (e.g., cheese, yogurt, milk), and residual confounding by unmeasured or imprecisely measured confounders may exist.

CONCLUSIONS: In a large meta-analysis that pooled the findings from 16 prospective cohort studies, higher levels of 15:0, 17:0, and t16:1n-7 were associated with a lower risk of T2D.

}, keywords = {Aged, Australia, Biomarkers, Dairy Products, Diabetes Mellitus, Type 2, Dietary Fats, Europe, Fatty Acids, Fatty Acids, Monounsaturated, Female, Humans, Incidence, Male, Middle Aged, Prospective Studies, Sex Factors, Taiwan, United States}, issn = {1549-1676}, doi = {10.1371/journal.pmed.1002670}, author = {Imamura, Fumiaki and Fretts, Amanda and Marklund, Matti and Ardisson Korat, Andres V and Yang, Wei-Sin and Lankinen, Maria and Qureshi, Waqas and Helmer, Catherine and Chen, Tzu-An and Wong, Kerry and Bassett, Julie K and Murphy, Rachel and Tintle, Nathan and Yu, Chaoyu Ian and Brouwer, Ingeborg A and Chien, Kuo-Liong and Frazier-Wood, Alexis C and Del Gobbo, Liana C and Djouss{\'e}, Luc and Geleijnse, Johanna M and Giles, Graham G and de Goede, Janette and Gudnason, Vilmundur and Harris, William S and Hodge, Allison and Hu, Frank and Koulman, Albert and Laakso, Markku and Lind, Lars and Lin, Hung-Ju and McKnight, Barbara and Rajaobelina, Kalina and Riserus, Ulf and Robinson, Jennifer G and Samieri, Cecilia and Siscovick, David S and Soedamah-Muthu, Sabita S and Sotoodehnia, Nona and Sun, Qi and Tsai, Michael Y and Uusitupa, Matti and Wagenknecht, Lynne E and Wareham, Nick J and Wu, Jason HY and Micha, Renata and Forouhi, Nita G and Lemaitre, Rozenn N and Mozaffarian, Dariush} } @article {7791, title = {Genome-wide association meta-analysis of circulating odd-numbered chain saturated fatty acids: Results from the CHARGE Consortium.}, journal = {PLoS One}, volume = {13}, year = {2018}, month = {2018}, pages = {e0196951}, abstract = {

BACKGROUND: Odd-numbered chain saturated fatty acids (OCSFA) have been associated with potential health benefits. Although some OCSFA (e.g., C15:0 and C17:0) are found in meats and dairy products, sources and metabolism of C19:0 and C23:0 are relatively unknown, and the influence of non-dietary determinants, including genetic factors, on circulating levels of OCSFA is not established.

OBJECTIVE: To elucidate the biological processes that influence circulating levels of OCSFA by investigating associations between genetic variation and OCSFA.

DESIGN: We performed a meta-analysis of genome-wide association studies (GWAS) of plasma phospholipid/erythrocyte levels of C15:0, C17:0, C19:0, and C23:0 among 11,494 individuals of European descent. We also investigated relationships between specific single nucleotide polymorphisms (SNPs) in the lactase (LCT) gene, associated with adult-onset lactase intolerance, with circulating levels of dairy-derived OCSFA, and evaluated associations of candidate sphingolipid genes with C23:0 levels.

RESULTS: We found no genome-wide significant evidence that common genetic variation is associated with circulating levels of C15:0 or C23:0. In two cohorts with available data, we identified one intronic SNP (rs13361131) in myosin X gene (MYO10) associated with C17:0 level (P = 1.37{\texttimes}10-8), and two intronic SNP (rs12874278 and rs17363566) in deleted in lymphocytic leukemia 1 (DLEU1) region associated with C19:0 level (P = 7.07{\texttimes}10-9). In contrast, when using a candidate-gene approach, we found evidence that three SNPs in LCT (rs11884924, rs16832067, and rs3816088) are associated with circulating C17:0 level (adjusted P = 4{\texttimes}10-2). In addition, nine SNPs in the ceramide synthase 4 (CERS4) region were associated with circulating C23:0 levels (adjusted P<5{\texttimes}10-2).

CONCLUSIONS: Our findings suggest that circulating levels of OCSFA may be predominantly influenced by non-genetic factors. SNPs associated with C17:0 level in the LCT gene may reflect genetic influence in dairy consumption or in metabolism of dairy foods. SNPs associated with C23:0 may reflect a role of genetic factors in the synthesis of sphingomyelin.

}, keywords = {Fatty Acids, Genome-Wide Association Study, Humans, Introns, Lactase, Myosins, Polymorphism, Single Nucleotide, Sphingomyelins, Sphingosine N-Acyltransferase, Tumor Suppressor Proteins}, issn = {1932-6203}, doi = {10.1371/journal.pone.0196951}, author = {de Oliveira Otto, Marcia C and Lemaitre, Rozenn N and Sun, Qi and King, Irena B and Wu, Jason H Y and Manichaikul, Ani and Rich, Stephen S and Tsai, Michael Y and Chen, Y D and Fornage, Myriam and Weihua, Guan and Aslibekyan, Stella and Irvin, Marguerite R and Kabagambe, Edmond K and Arnett, Donna K and Jensen, Majken K and McKnight, Barbara and Psaty, Bruce M and Steffen, Lyn M and Smith, Caren E and Riserus, Ulf and Lind, Lars and Hu, Frank B and Rimm, Eric B and Siscovick, David S and Mozaffarian, Dariush} } @article {8047, title = {Biomarkers of Dietary Omega-6 Fatty Acids and Incident Cardiovascular Disease and Mortality.}, journal = {Circulation}, volume = {139}, year = {2019}, month = {2019 May 21}, pages = {2422-2436}, abstract = {

BACKGROUND: Global dietary recommendations for and cardiovascular effects of linoleic acid, the major dietary omega-6 fatty acid, and its major metabolite, arachidonic acid, remain controversial. To address this uncertainty and inform international recommendations, we evaluated how in vivo circulating and tissue levels of linoleic acid (LA) and arachidonic acid (AA) relate to incident cardiovascular disease (CVD) across multiple international studies.

METHODS: We performed harmonized, de novo, individual-level analyses in a global consortium of 30 prospective observational studies from 13 countries. Multivariable-adjusted associations of circulating and adipose tissue LA and AA biomarkers with incident total CVD and subtypes (coronary heart disease, ischemic stroke, cardiovascular mortality) were investigated according to a prespecified analytic plan. Levels of LA and AA, measured as the percentage of total fatty acids, were evaluated linearly according to their interquintile range (ie, the range between the midpoint of the first and fifth quintiles), and categorically by quintiles. Study-specific results were pooled using inverse-variance-weighted meta-analysis. Heterogeneity was explored by age, sex, race, diabetes mellitus, statin use, aspirin use, omega-3 levels, and fatty acid desaturase 1 genotype (when available).

RESULTS: In 30 prospective studies with medians of follow-up ranging 2.5 to 31.9 years, 15 198 incident cardiovascular events occurred among 68 659 participants. Higher levels of LA were significantly associated with lower risks of total CVD, cardiovascular mortality, and ischemic stroke, with hazard ratios per interquintile range of 0.93 (95\% CI, 0.88-0.99), 0.78 (0.70-0.85), and 0.88 (0.79-0.98), respectively, and nonsignificantly with lower coronary heart disease risk (0.94; 0.88-1.00). Relationships were similar for LA evaluated across quintiles. AA levels were not associated with higher risk of cardiovascular outcomes; in a comparison of extreme quintiles, higher levels were associated with lower risk of total CVD (0.92; 0.86-0.99). No consistent heterogeneity by population subgroups was identified in the observed relationships.

CONCLUSIONS: In pooled global analyses, higher in vivo circulating and tissue levels of LA and possibly AA were associated with lower risk of major cardiovascular events. These results support a favorable role for LA in CVD prevention.

}, issn = {1524-4539}, doi = {10.1161/CIRCULATIONAHA.118.038908}, author = {Marklund, Matti and Wu, Jason H Y and Imamura, Fumiaki and Del Gobbo, Liana C and Fretts, Amanda and de Goede, Janette and Shi, Peilin and Tintle, Nathan and Wennberg, Maria and Aslibekyan, Stella and Chen, Tzu-An and de Oliveira Otto, Marcia C and Hirakawa, Yoichiro and Eriksen, Helle H{\o}jmark and Kr{\"o}ger, Janine and Laguzzi, Federica and Lankinen, Maria and Murphy, Rachel A and Prem, Kiesha and Samieri, Cecilia and Virtanen, Jyrki and Wood, Alexis C and Wong, Kerry and Yang, Wei-Sin and Zhou, Xia and Baylin, Ana and Boer, Jolanda M A and Brouwer, Ingeborg A and Campos, Hannia and Chaves, Paulo H M and Chien, Kuo-Liong and de Faire, Ulf and Djouss{\'e}, Luc and Eiriksdottir, Gudny and El-Abbadi, Naglaa and Forouhi, Nita G and Michael Gaziano, J and Geleijnse, Johanna M and Gigante, Bruna and Giles, Graham and Guallar, Eliseo and Gudnason, Vilmundur and Harris, Tamara and Harris, William S and Helmer, Catherine and Hellenius, Mai-Lis and Hodge, Allison and Hu, Frank B and Jacques, Paul F and Jansson, Jan-H{\r a}kan and Kalsbeek, Anya and Khaw, Kay-Tee and Koh, Woon-Puay and Laakso, Markku and Leander, Karin and Lin, Hung-Ju and Lind, Lars and Luben, Robert and Luo, Juhua and McKnight, Barbara and Mursu, Jaakko and Ninomiya, Toshiharu and Overvad, Kim and Psaty, Bruce M and Rimm, Eric and Schulze, Matthias B and Siscovick, David and Skjelbo Nielsen, Michael and Smith, Albert V and Steffen, Brian T and Steffen, Lyn and Sun, Qi and Sundstr{\"o}m, Johan and Tsai, Michael Y and Tunstall-Pedoe, Hugh and Uusitupa, Matti I J and van Dam, Rob M and Veenstra, Jenna and Monique Verschuren, W M and Wareham, Nick and Willett, Walter and Woodward, Mark and Yuan, Jian-Min and Micha, Renata and Lemaitre, Rozenn N and Mozaffarian, Dariush and Riserus, Ulf} } @article {8777, title = {Blood n-3 fatty acid levels and total and cause-specific mortality from 17 prospective studies.}, journal = {Nat Commun}, volume = {12}, year = {2021}, month = {2021 04 22}, pages = {2329}, abstract = {

The health effects of omega-3 fatty acids have been controversial. Here we report the results of a de novo pooled analysis conducted with data from 17 prospective cohort studies examining the associations between blood omega-3 fatty acid levels and risk for all-cause mortality. Over a median of 16 years of follow-up, 15,720 deaths occurred among 42,466 individuals. We found that, after multivariable adjustment for relevant risk factors, risk for death from all causes was significantly lower (by 15-18\%, at least p < 0.003) in the highest vs the lowest quintile for circulating long chain (20-22 carbon) omega-3 fatty acids (eicosapentaenoic, docosapentaenoic, and docosahexaenoic acids). Similar relationships were seen for death from cardiovascular disease, cancer and other causes. No associations were seen with the 18-carbon omega-3, alpha-linolenic acid. These findings suggest that higher circulating levels of marine n-3 PUFA are associated with a lower risk of premature death.

}, keywords = {Aged, Aged, 80 and over, Cause of Death, Fatty Acids, Omega-3, Female, Follow-Up Studies, Humans, Male, Middle Aged, Mortality, Premature, Prospective Studies, Protective Factors, Risk Factors}, issn = {2041-1723}, doi = {10.1038/s41467-021-22370-2}, author = {Harris, William S and Tintle, Nathan L and Imamura, Fumiaki and Qian, Frank and Korat, Andres V Ardisson and Marklund, Matti and Djouss{\'e}, Luc and Bassett, Julie K and Carmichael, Pierre-Hugues and Chen, Yun-Yu and Hirakawa, Yoichiro and K{\"u}pers, Leanne K and Laguzzi, Federica and Lankinen, Maria and Murphy, Rachel A and Samieri, Cecilia and Senn, Mackenzie K and Shi, Peilin and Virtanen, Jyrki K and Brouwer, Ingeborg A and Chien, Kuo-Liong and Eiriksdottir, Gudny and Forouhi, Nita G and Geleijnse, Johanna M and Giles, Graham G and Gudnason, Vilmundur and Helmer, Catherine and Hodge, Allison and Jackson, Rebecca and Khaw, Kay-Tee and Laakso, Markku and Lai, Heidi and Laurin, Danielle and Leander, Karin and Lindsay, Joan and Micha, Renata and Mursu, Jaako and Ninomiya, Toshiharu and Post, Wendy and Psaty, Bruce M and Riserus, Ulf and Robinson, Jennifer G and Shadyab, Aladdin H and Snetselaar, Linda and Sala-Vila, Aleix and Sun, Yangbo and Steffen, Lyn M and Tsai, Michael Y and Wareham, Nicholas J and Wood, Alexis C and Wu, Jason H Y and Hu, Frank and Sun, Qi and Siscovick, David S and Lemaitre, Rozenn N and Mozaffarian, Dariush} }