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Your search keyword '"Daníel Gudbjartsson"' showing total 6 results
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6 results on '"Daníel Gudbjartsson"'

1. Eleven genomic loci affect plasma levels of chronic inflammation marker soluble urokinase-type plasminogen activator receptor

Author

Joseph Dowsett, Egil Ferkingstad, Line Jee Hartmann Rasmussen, Lise Wegner Thørner, Magnús K. Magnússon, Karen Sugden, Gudmar Thorleifsson, Mike Frigge, Kristoffer Sølvsten Burgdorf, Sisse Rye Ostrowski, Erik Sørensen, Christian Erikstrup, Ole Birger Pedersen, Thomas Folkmann Hansen, Karina Banasik, Søren Brunak, DBDS Genomic Consortium, Vinicius Tragante, Sigrun Helga Lund, Lilja Stefansdottir, Bjarni Gunnarson, Richie Poulton, Louise Arseneault, Avshalom Caspi, Terrie E. Moffitt, Daníel Gudbjartsson, Jesper Eugen-Olsen, Hreinn Stefánsson, Kári Stefánsson, and Henrik Ullum

Subjects
Biology (General), QH301-705.5
Abstract

Dowsett and colleagues used a genome-wide association approach to investigate the genetic influence on soluble urokinase-type plasminogen activator receptor presence in the plasma of humans. Their findings indicate a 60% heritability factor in British twins, and using a wide sample of Northern European genome samples they identify eleven genetic loci associated with an increase or decrease of this chronic inflammation marker.

Published
2021
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2. Composition of the founding population of Iceland: biological distance and morphological variation in early historic Atlantic Europe

Author

Benedikt, Hallgrímsson, Barra O, Donnabháin, G Bragi, Walters, David M L, Cooper, Daníel, Gudbjartsson, and Kari, Stefánsson

Subjects
Genetics, Population, Fossils, Norway, Greenland, Iceland, Humans, Emigration and Immigration, Ireland, Bone and Bones
Abstract

We examined the composition of the founding population of Iceland through the study of morphological traits in skeletons from Iceland, Ireland, Norway, and Greenland. This is the first study to address this issue from the Settlement Period of Iceland and contemporary samples from Ireland. We pose the following questions: 1) Was the founding population of Iceland of mixed or homogeneous origin? 2) Is there evidence for a significant Irish cohort in the founding population, as suggested in medieval Icelandic literature? Analysis of biodistance revealed that both Settlement Age and later samples from Iceland showed a greater degree of phenetic similarity to contemporary Viking Age Norwegians than to samples obtained from early medieval Ireland. Analysis of among-individual morphological variation showed that the Settlement Age population of Iceland did not exhibit an increase in variation in comparison to other populations in the sample, suggesting a relatively homogenous origin. However, estimation of admixture between the Irish and Norwegian populations indicated that 66% of the Icelandic settlers were of Norwegian origin. Comparison of the Icelandic samples to hybrid samples produced by resampling the Viking Age Norwegian and early medieval Irish samples revealed that the Icelandic samples are much closer to the Norwegian samples than expected, based on a 66:34 mixture of Norwegian and Irish settlers. We conclude that the Settlement Age population of Iceland was predominantly (60-90%) of Norwegian origin. Although this population was relatively homogenous, our results do not preclude significant contributions from Ireland as well as other sources not represented in our analysis.

Published
2004

3. MEPE loss-of-function variant associates with decreased bone mineral density and increased fracture risk

Author

Ida Surakka, Lars G. Fritsche, Wei Zhou, Joshua Backman, Jack A. Kosmicki, Haocheng Lu, Ben Brumpton, Jonas B. Nielsen, Maiken E. Gabrielsen, Anne Heidi Skogholt, Brooke Wolford, Sarah E. Graham, Y. Eugene Chen, Seunggeun Lee, Hyun Min Kang, Arnulf Langhammer, Siri Forsmo, Bjørn O. Åsvold, Unnur Styrkarsdottir, Hilma Holm, Daniel Gudbjartsson, Kari Stefansson, Aris Baras, Regeneron Genetics Center, Goncalo R. Abecasis, Kristian Hveem, and Cristen J. Willer

Subjects
Science
Abstract

Bone mineral density (BMD) is associated with fracture risk and many genetic loci with small effect sizes have been discovered by genome-wide association studies (GWAS). Here, the authors discover a large-effect rare loss-of-function genetic variant for BMD in the MEPE gene in the Norwegian HUNT study which replicates in the UK Biobank.

Published
2020
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4. Sequence variant at 8q24.21 associates with sciatica caused by lumbar disc herniation

Author

Gyda Bjornsdottir, Stefania Benonisdottir, Gardar Sveinbjornsson, Unnur Styrkarsdottir, Gudmar Thorleifsson, G. Bragi Walters, Aron Bjornsson, Ingvar H. Olafsson, Elfar Ulfarsson, Arnor Vikingsson, Ragnheidur Hansdottir, Karl O. Karlsson, Thorunn Rafnar, Ingileif Jonsdottir, Michael L. Frigge, Augustine Kong, Asmundur Oddsson, Gisli Masson, Olafur T. Magnusson, Tomas Gudbjartsson, Hreinn Stefansson, Patrick Sulem, Daniel Gudbjartsson, Unnur Thorsteinsdottir, Thorgeir E. Thorgeirsson, and Kari Stefansson

Subjects
Science
Abstract

Lumbar disc herniation (LDH) can cause persistent sciatica, and in some cases surgery is required to relieve symptoms. Here, the authors carry out a genome-wide association study using microdiscectomy as an indicator of severe LDH, and find a locus on chromosome 8 associated with this condition.

Published
2017
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5. A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Author

Manuel A. Rivas, Daniel Graham, Patrick Sulem, Christine Stevens, A. Nicole Desch, Philippe Goyette, Daniel Gudbjartsson, Ingileif Jonsdottir, Unnur Thorsteinsdottir, Frauke Degenhardt, Sören Mucha, Mitja I. Kurki, Dalin Li, Mauro D’Amato, Vito Annese, Severine Vermeire, Rinse K. Weersma, Jonas Halfvarson, Paulina Paavola-Sakki, Maarit Lappalainen, Monkol Lek, Beryl Cummings, Taru Tukiainen, Talin Haritunians, Leena Halme, Lotta L. E. Koskinen, Ashwin N. Ananthakrishnan, Yang Luo, Graham A. Heap, Marijn C. Visschedijk, UK IBD Genetics Consortium, NIDDK IBD Genetics Consortium, Daniel G. MacArthur, Benjamin M. Neale, Tariq Ahmad, Carl A. Anderson, Steven R. Brant, Richard H. Duerr, Mark S. Silverberg, Judy H Cho, Aarno Palotie, Päivi Saavalainen, Kimmo Kontula, Martti Färkkilä, Dermot P. B. McGovern, Andre Franke, Kari Stefansson, John D. Rioux, Ramnik J. Xavier, and Mark J. Daly

Subjects
Science
Abstract

While hundreds of loci are linked with inflammatory bowel diseases (IBDs), the functional consequences of the associated variants remain unclear. Here, the authors screened in ulcerative colitis (UC) patients’ genomes for protein-truncating variants near IBD loci, and identify a protein truncating variant in RNF186to be protective against UC.

Published
2016
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6. Erratum: A protein-truncating R179X variant in RNF186 confers protection against ulcerative colitis

Author

Manuel A. Rivas, Daniel Graham, Patrick Sulem, Christine Stevens, A. Nicole Desch, Philippe Goyette, Daniel Gudbjartsson, Ingileif Jonsdottir, Unnur Thorsteinsdottir, Frauke Degenhardt, Sören Mucha, Mitja I. Kurki, Dalin Li, Mauro D’Amato, Vito Annese, Severine Vermeire, Rinse K. Weersma, Jonas Halfvarson, Paulina Paavola-Sakki, Maarit Lappalainen, Monkol Lek, Beryl Cummings, Taru Tukiainen, Talin Haritunians, Leena Halme, Lotta L. E. Koskinen, Ashwin N. Ananthakrishnan, Yang Luo, Graham A. Heap, Marijn C. Visschedijk, UK IBD Genetics Consortium, NIDDK IBD Genetics Consortium, Daniel G. MacArthur, Benjamin M. Neale, Tariq Ahmad, Carl A. Anderson, Steven R. Brant, Richard H. Duerr, Mark S. Silverberg, Judy H. Cho, Aarno Palotie, Päivi Saavalainen, Kimmo Kontula, Martti Färkkilä, Dermot P. B. McGovern, Andre Franke, Kari Stefansson, John D. Rioux, Ramnik J. Xavier, and Mark J. Daly

Subjects
Science
Abstract

Nature Communications 7 Article number: 12342 (2016); Published 9 August 2016; Updated 13 September 2016 The HTML version of this Article incorrectly listed the authors of the UK IBD Genetics Consortium and the NIDDK IBD Genetics Consortium individually in the main author list. This has now been corrected in the HTML; the PDF version of the paper was correct from the time of publication.

Published
2016
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