ALBERT

Description: Reduced fecundity, associated with severe mental disorders, places negative selection pressure on risk alleles and may explain, in part, why common variants have not been found that confer risk of disorders such as autism, schizophrenia and mental retardation. Thus, rare variants may account for a larger fraction of the overall genetic risk than previously assumed. In contrast to rare single nucleotide mutations, rare copy number variations (CNVs) can be detected using genome-wide single nucleotide polymorphism arrays. This has led to the identification of CNVs associated with mental retardation and autism. In a genome-wide search for CNVs associating with schizophrenia, we used a population-based sample to identify de novo CNVs by analysing 9,878 transmissions from parents to offspring. The 66 de novo CNVs identified were tested for association in a sample of 1,433 schizophrenia cases and 33,250 controls. Three deletions at 1q21.1, 15q11.2 and 15q13.3 showing nominal association with schizophrenia in the first sample (phase I) were followed up in a second sample of 3,285 cases and 7,951 controls (phase II). All three deletions significantly associate with schizophrenia and related psychoses in the combined sample. The identification of these rare, recurrent risk variants, having occurred independently in multiple founders and being subject to negative selection, is important in itself. CNV analysis may also point the way to the identification of additional and more prevalent risk variants in genes and pathways involved in schizophrenia.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2687075/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2687075/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Stefansson, Hreinn -- Rujescu, Dan -- Cichon, Sven -- Pietilainen, Olli P H -- Ingason, Andres -- Steinberg, Stacy -- Fossdal, Ragnheidur -- Sigurdsson, Engilbert -- Sigmundsson, Thordur -- Buizer-Voskamp, Jacobine E -- Hansen, Thomas -- Jakobsen, Klaus D -- Muglia, Pierandrea -- Francks, Clyde -- Matthews, Paul M -- Gylfason, Arnaldur -- Halldorsson, Bjarni V -- Gudbjartsson, Daniel -- Thorgeirsson, Thorgeir E -- Sigurdsson, Asgeir -- Jonasdottir, Adalbjorg -- Jonasdottir, Aslaug -- Bjornsson, Asgeir -- Mattiasdottir, Sigurborg -- Blondal, Thorarinn -- Haraldsson, Magnus -- Magnusdottir, Brynja B -- Giegling, Ina -- Moller, Hans-Jurgen -- Hartmann, Annette -- Shianna, Kevin V -- Ge, Dongliang -- Need, Anna C -- Crombie, Caroline -- Fraser, Gillian -- Walker, Nicholas -- Lonnqvist, Jouko -- Suvisaari, Jaana -- Tuulio-Henriksson, Annamarie -- Paunio, Tiina -- Toulopoulou, Timi -- Bramon, Elvira -- Di Forti, Marta -- Murray, Robin -- Ruggeri, Mirella -- Vassos, Evangelos -- Tosato, Sarah -- Walshe, Muriel -- Li, Tao -- Vasilescu, Catalina -- Muhleisen, Thomas W -- Wang, August G -- Ullum, Henrik -- Djurovic, Srdjan -- Melle, Ingrid -- Olesen, Jes -- Kiemeney, Lambertus A -- Franke, Barbara -- GROUP -- Sabatti, Chiara -- Freimer, Nelson B -- Gulcher, Jeffrey R -- Thorsteinsdottir, Unnur -- Kong, Augustine -- Andreassen, Ole A -- Ophoff, Roel A -- Georgi, Alexander -- Rietschel, Marcella -- Werge, Thomas -- Petursson, Hannes -- Goldstein, David B -- Nothen, Markus M -- Peltonen, Leena -- Collier, David A -- St Clair, David -- Stefansson, Kari -- 089061/Wellcome Trust/United Kingdom -- G0901310/Medical Research Council/United Kingdom -- PDA/02/06/016/Department of Health/United Kingdom -- R01 MH078075/MH/NIMH NIH HHS/ -- R01MH71425-01A1/MH/NIMH NIH HHS/ -- England -- Nature. 2008 Sep 11;455(7210):232-6. doi: 10.1038/nature07229.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉CNS Division, deCODE genetics, Sturlugata 8, IS-101 Reykjavik, Iceland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18668039" target="_blank"〉PubMed〈/a〉

Description: Common human diseases result from the interplay of many genes and environmental factors. Therefore, a more integrative biology approach is needed to unravel the complexity and causes of such diseases. To elucidate the complexity of common human diseases such as obesity, we have analysed the expression of 23,720 transcripts in large population-based blood and adipose tissue cohorts comprehensively assessed for various phenotypes, including traits related to clinical obesity. In contrast to the blood expression profiles, we observed a marked correlation between gene expression in adipose tissue and obesity-related traits. Genome-wide linkage and association mapping revealed a highly significant genetic component to gene expression traits, including a strong genetic effect of proximal (cis) signals, with 50% of the cis signals overlapping between the two tissues profiled. Here we demonstrate an extensive transcriptional network constructed from the human adipose data that exhibits significant overlap with similar network modules constructed from mouse adipose data. A core network module in humans and mice was identified that is enriched for genes involved in the inflammatory and immune response and has been found to be causally associated to obesity-related traits.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Emilsson, Valur -- Thorleifsson, Gudmar -- Zhang, Bin -- Leonardson, Amy S -- Zink, Florian -- Zhu, Jun -- Carlson, Sonia -- Helgason, Agnar -- Walters, G Bragi -- Gunnarsdottir, Steinunn -- Mouy, Magali -- Steinthorsdottir, Valgerdur -- Eiriksdottir, Gudrun H -- Bjornsdottir, Gyda -- Reynisdottir, Inga -- Gudbjartsson, Daniel -- Helgadottir, Anna -- Jonasdottir, Aslaug -- Jonasdottir, Adalbjorg -- Styrkarsdottir, Unnur -- Gretarsdottir, Solveig -- Magnusson, Kristinn P -- Stefansson, Hreinn -- Fossdal, Ragnheidur -- Kristjansson, Kristleifur -- Gislason, Hjortur G -- Stefansson, Tryggvi -- Leifsson, Bjorn G -- Thorsteinsdottir, Unnur -- Lamb, John R -- Gulcher, Jeffrey R -- Reitman, Marc L -- Kong, Augustine -- Schadt, Eric E -- Stefansson, Kari -- England -- Nature. 2008 Mar 27;452(7186):423-8. doi: 10.1038/nature06758. Epub 2008 Mar 16.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉deCODE genetics, 101 Reykjavik, Iceland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/18344981" target="_blank"〉PubMed〈/a〉

Description: Most common human traits and diseases have a polygenic pattern of inheritance: DNA sequence variants at many genetic loci influence the phenotype. Genome-wide association (GWA) studies have identified more than 600 variants associated with human traits, but these typically explain small fractions of phenotypic variation, raising questions about the use of further studies. Here, using 183,727 individuals, we show that hundreds of genetic variants, in at least 180 loci, influence adult height, a highly heritable and classic polygenic trait. The large number of loci reveals patterns with important implications for genetic studies of common human diseases and traits. First, the 180 loci are not random, but instead are enriched for genes that are connected in biological pathways (P = 0.016) and that underlie skeletal growth defects (P 〈 0.001). Second, the likely causal gene is often located near the most strongly associated variant: in 13 of 21 loci containing a known skeletal growth gene, that gene was closest to the associated variant. Third, at least 19 loci have multiple independently associated variants, suggesting that allelic heterogeneity is a frequent feature of polygenic traits, that comprehensive explorations of already-discovered loci should discover additional variants and that an appreciable fraction of associated loci may have been identified. Fourth, associated variants are enriched for likely functional effects on genes, being over-represented among variants that alter amino-acid structure of proteins and expression levels of nearby genes. Our data explain approximately 10% of the phenotypic variation in height, and we estimate that unidentified common variants of similar effect sizes would increase this figure to approximately 16% of phenotypic variation (approximately 20% of heritable variation). Although additional approaches are needed to dissect the genetic architecture of polygenic human traits fully, our findings indicate that GWA studies can identify large numbers of loci that implicate biologically relevant genes and pathways.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2955183/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2955183/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Lango Allen, Hana -- Estrada, Karol -- Lettre, Guillaume -- Berndt, Sonja I -- Weedon, Michael N -- Rivadeneira, Fernando -- Willer, Cristen J -- Jackson, Anne U -- Vedantam, Sailaja -- Raychaudhuri, Soumya -- Ferreira, Teresa -- Wood, Andrew R -- Weyant, Robert J -- Segre, Ayellet V -- Speliotes, Elizabeth K -- Wheeler, Eleanor -- Soranzo, Nicole -- Park, Ju-Hyun -- Yang, Jian -- Gudbjartsson, Daniel -- Heard-Costa, Nancy L -- Randall, Joshua C -- Qi, Lu -- Vernon Smith, Albert -- Magi, Reedik -- Pastinen, Tomi -- Liang, Liming -- Heid, Iris M -- Luan, Jian'an -- Thorleifsson, Gudmar -- Winkler, Thomas W -- Goddard, Michael E -- Sin Lo, Ken -- Palmer, Cameron -- Workalemahu, Tsegaselassie -- Aulchenko, Yurii S -- Johansson, Asa -- Zillikens, M Carola -- Feitosa, Mary F -- Esko, Tonu -- Johnson, Toby -- Ketkar, Shamika -- Kraft, Peter -- Mangino, Massimo -- Prokopenko, Inga -- Absher, Devin -- Albrecht, Eva -- Ernst, Florian -- Glazer, Nicole L -- Hayward, Caroline -- Hottenga, Jouke-Jan -- Jacobs, Kevin B -- Knowles, Joshua W -- Kutalik, Zoltan -- Monda, Keri L -- Polasek, Ozren -- Preuss, Michael -- Rayner, Nigel W -- Robertson, Neil R -- Steinthorsdottir, Valgerdur -- Tyrer, Jonathan P -- Voight, Benjamin F -- Wiklund, Fredrik -- Xu, Jianfeng -- Zhao, Jing Hua -- Nyholt, Dale R -- Pellikka, Niina -- Perola, Markus -- Perry, John R B -- Surakka, Ida -- Tammesoo, Mari-Liis -- Altmaier, Elizabeth L -- Amin, Najaf -- Aspelund, Thor -- Bhangale, Tushar -- Boucher, Gabrielle -- Chasman, Daniel I -- Chen, Constance -- Coin, Lachlan -- Cooper, Matthew N -- Dixon, Anna L -- Gibson, Quince -- Grundberg, Elin -- Hao, Ke -- Juhani Junttila, M -- Kaplan, Lee M -- Kettunen, Johannes -- Konig, Inke R -- Kwan, Tony -- Lawrence, Robert W -- Levinson, Douglas F -- Lorentzon, Mattias -- McKnight, Barbara -- Morris, Andrew P -- Muller, Martina -- Suh Ngwa, Julius -- Purcell, Shaun -- Rafelt, Suzanne -- Salem, Rany M -- Salvi, Erika -- Sanna, Serena -- Shi, Jianxin -- Sovio, Ulla -- Thompson, John R -- Turchin, Michael C -- Vandenput, Liesbeth -- Verlaan, Dominique J -- Vitart, Veronique -- White, Charles C -- Ziegler, Andreas -- Almgren, Peter -- Balmforth, Anthony J -- Campbell, Harry -- Citterio, Lorena -- De Grandi, Alessandro -- Dominiczak, Anna -- Duan, Jubao -- Elliott, Paul -- Elosua, Roberto -- Eriksson, Johan G -- Freimer, Nelson B -- Geus, Eco J C -- Glorioso, Nicola -- Haiqing, Shen -- Hartikainen, Anna-Liisa -- Havulinna, Aki S -- Hicks, Andrew A -- Hui, Jennie -- Igl, Wilmar -- Illig, Thomas -- Jula, Antti -- Kajantie, Eero -- Kilpelainen, Tuomas O -- Koiranen, Markku -- Kolcic, Ivana -- Koskinen, Seppo -- Kovacs, Peter -- Laitinen, Jaana -- Liu, Jianjun -- Lokki, Marja-Liisa -- Marusic, Ana -- Maschio, Andrea -- Meitinger, Thomas -- Mulas, Antonella -- Pare, Guillaume -- Parker, Alex N -- Peden, John F -- Petersmann, Astrid -- Pichler, Irene -- Pietilainen, Kirsi H -- Pouta, Anneli -- Ridderstrale, Martin -- Rotter, Jerome I -- Sambrook, Jennifer G -- Sanders, Alan R -- Schmidt, Carsten Oliver -- Sinisalo, Juha -- Smit, Jan H -- Stringham, Heather M -- Bragi Walters, G -- Widen, Elisabeth -- Wild, Sarah H -- Willemsen, Gonneke -- Zagato, Laura -- Zgaga, Lina -- Zitting, Paavo -- Alavere, Helene -- Farrall, Martin -- McArdle, Wendy L -- Nelis, Mari -- Peters, Marjolein J -- Ripatti, Samuli -- van Meurs, Joyce B J -- Aben, Katja K -- Ardlie, Kristin G -- Beckmann, Jacques S -- Beilby, John P -- Bergman, Richard N -- Bergmann, Sven -- Collins, Francis S -- Cusi, Daniele -- den Heijer, Martin -- Eiriksdottir, Gudny -- Gejman, Pablo V -- Hall, Alistair S -- Hamsten, Anders -- Huikuri, Heikki V -- Iribarren, Carlos -- Kahonen, Mika -- Kaprio, Jaakko -- Kathiresan, Sekar -- Kiemeney, Lambertus -- Kocher, Thomas -- Launer, Lenore J -- Lehtimaki, Terho -- Melander, Olle -- Mosley, Tom H Jr -- Musk, Arthur W -- Nieminen, Markku S -- O'Donnell, Christopher J -- Ohlsson, Claes -- Oostra, Ben -- Palmer, Lyle J -- Raitakari, Olli -- Ridker, Paul M -- Rioux, John D -- Rissanen, Aila -- Rivolta, Carlo -- Schunkert, Heribert -- Shuldiner, Alan R -- Siscovick, David S -- Stumvoll, Michael -- Tonjes, Anke -- Tuomilehto, Jaakko -- van Ommen, Gert-Jan -- Viikari, Jorma -- Heath, Andrew C -- Martin, Nicholas G -- Montgomery, Grant W -- Province, Michael A -- Kayser, Manfred -- Arnold, Alice M -- Atwood, Larry D -- Boerwinkle, Eric -- Chanock, Stephen J -- Deloukas, Panos -- Gieger, Christian -- Gronberg, Henrik -- Hall, Per -- Hattersley, Andrew T -- Hengstenberg, Christian -- Hoffman, Wolfgang -- Lathrop, G Mark -- Salomaa, Veikko -- Schreiber, Stefan -- Uda, Manuela -- Waterworth, Dawn -- Wright, Alan F -- Assimes, Themistocles L -- Barroso, Ines -- Hofman, Albert -- Mohlke, Karen L -- Boomsma, Dorret I -- Caulfield, Mark J -- Cupples, L Adrienne -- Erdmann, Jeanette -- Fox, Caroline S -- Gudnason, Vilmundur -- Gyllensten, Ulf -- Harris, Tamara B -- Hayes, Richard B -- Jarvelin, Marjo-Riitta -- Mooser, Vincent -- Munroe, Patricia B -- Ouwehand, Willem H -- Penninx, Brenda W -- Pramstaller, Peter P -- Quertermous, Thomas -- Rudan, Igor -- Samani, Nilesh J -- Spector, Timothy D -- Volzke, Henry -- Watkins, Hugh -- Wilson, James F -- Groop, Leif C -- Haritunians, Talin -- Hu, Frank B -- Kaplan, Robert C -- Metspalu, Andres -- North, Kari E -- Schlessinger, David -- Wareham, Nicholas J -- Hunter, David J -- O'Connell, Jeffrey R -- Strachan, David P -- Wichmann, H-Erich -- Borecki, Ingrid B -- van Duijn, Cornelia M -- Schadt, Eric E -- Thorsteinsdottir, Unnur -- Peltonen, Leena -- Uitterlinden, Andre G -- Visscher, Peter M -- Chatterjee, Nilanjan -- Loos, Ruth J F -- Boehnke, Michael -- McCarthy, Mark I -- Ingelsson, Erik -- Lindgren, Cecilia M -- Abecasis, Goncalo R -- Stefansson, Kari -- Frayling, Timothy M -- Hirschhorn, Joel N -- 064890/Wellcome Trust/United Kingdom -- 068545/Wellcome Trust/United Kingdom -- 068545/Z/02/Wellcome Trust/United Kingdom -- 072856/Wellcome Trust/United Kingdom -- 072960/Wellcome Trust/United Kingdom -- 075491/Wellcome Trust/United Kingdom -- 076113/Wellcome Trust/United Kingdom -- 076113/B/04/Z/Wellcome Trust/United Kingdom -- 076113/C/04/Z/Wellcome Trust/United Kingdom -- 077016/Wellcome Trust/United Kingdom -- 077016/Z/05/Z/Wellcome Trust/United Kingdom -- 079557/Wellcome Trust/United Kingdom -- 079771/Wellcome Trust/United Kingdom -- 079895/Wellcome Trust/United Kingdom -- 081682/Wellcome Trust/United Kingdom -- 081682/Z/06/Z/Wellcome Trust/United Kingdom -- 083270/Wellcome Trust/United Kingdom -- 084183/Z/07/Z/Wellcome Trust/United Kingdom -- 085301/Wellcome Trust/United Kingdom -- 085301/Z/08/Z/Wellcome Trust/United Kingdom -- 086596/Wellcome Trust/United Kingdom -- 086596/Z/08/Z/Wellcome Trust/United Kingdom -- 088885/Wellcome Trust/United Kingdom -- 090532/Wellcome Trust/United Kingdom -- 091746/Wellcome Trust/United Kingdom -- 091746/Z/10/Z/Wellcome Trust/United Kingdom -- 263-MA-410953/PHS HHS/ -- AA014041/AA/NIAAA NIH HHS/ -- AA07535/AA/NIAAA NIH HHS/ -- AA10248/AA/NIAAA NIH HHS/ -- AA13320/AA/NIAAA NIH HHS/ -- AA13321/AA/NIAAA NIH HHS/ -- AA13326/AA/NIAAA NIH HHS/ -- CA047988/CA/NCI NIH HHS/ -- CA49449/CA/NCI NIH HHS/ -- CA50385/CA/NCI NIH HHS/ -- CA65725/CA/NCI NIH HHS/ -- CA67262/CA/NCI NIH HHS/ -- CA87969/CA/NCI NIH HHS/ -- CZB/4/276/Chief Scientist Office/United Kingdom -- 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Epub 2010 Sep 29.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Genetics of Complex Traits, Peninsula College of Medicine and Dentistry, University of Exeter, Exeter EX1 2LU, UK.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20881960" target="_blank"〉PubMed〈/a〉

Description: The prevalence of dementia in the Western world in people over the age of 60 has been estimated to be greater than 5%, about two-thirds of which are due to Alzheimer's disease. The age-specific prevalence of Alzheimer's disease nearly doubles every 5 years after age 65, leading to a prevalence of greater than 25% in those over the age of 90 (ref. 3). Here, to search for low-frequency variants in the amyloid-beta precursor protein (APP) gene with a significant effect on the risk of Alzheimer's disease, we studied coding variants in APP in a set of whole-genome sequence data from 1,795 Icelanders. We found a coding mutation (A673T) in the APP gene that protects against Alzheimer's disease and cognitive decline in the elderly without Alzheimer's disease. This substitution is adjacent to the aspartyl protease beta-site in APP, and results in an approximately 40% reduction in the formation of amyloidogenic peptides in vitro. The strong protective effect of the A673T substitution against Alzheimer's disease provides proof of principle for the hypothesis that reducing the beta-cleavage of APP may protect against the disease. Furthermore, as the A673T allele also protects against cognitive decline in the elderly without Alzheimer's disease, the two may be mediated through the same or similar mechanisms.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Jonsson, Thorlakur -- Atwal, Jasvinder K -- Steinberg, Stacy -- Snaedal, Jon -- Jonsson, Palmi V -- Bjornsson, Sigurbjorn -- Stefansson, Hreinn -- Sulem, Patrick -- Gudbjartsson, Daniel -- Maloney, Janice -- Hoyte, Kwame -- Gustafson, Amy -- Liu, Yichin -- Lu, Yanmei -- Bhangale, Tushar -- Graham, Robert R -- Huttenlocher, Johanna -- Bjornsdottir, Gyda -- Andreassen, Ole A -- Jonsson, Erik G -- Palotie, Aarno -- Behrens, Timothy W -- Magnusson, Olafur T -- Kong, Augustine -- Thorsteinsdottir, Unnur -- Watts, Ryan J -- Stefansson, Kari -- HL-102924/HL/NHLBI NIH HHS/ -- HL-102925/HL/NHLBI NIH HHS/ -- HL-102926/HL/NHLBI NIH HHS/ -- HL-103010/HL/NHLBI NIH HHS/ -- England -- Nature. 2012 Aug 2;488(7409):96-9. doi: 10.1038/nature11283.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉deCODE genetics, Sturlugata 8, 101 Reykjavik, Iceland.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22801501" target="_blank"〉PubMed〈/a〉