Search

Your search keyword '"Sigrún H. Lund"' showing total 5 results
Start Over Author "Sigrún H. Lund" Topic qh301-705.5
5 results on '"Sigrún H. Lund"'

1. Sequence variant affects GCSAML splicing, mast cell specific proteins, and risk of urticaria

Author

Ragnar P. Kristjansson, Gudjon R. Oskarsson, Astros Skuladottir, Asmundur Oddsson, Solvi Rognvaldsson, Gardar Sveinbjornsson, Sigrun H. Lund, Brynjar O. Jensson, Edda L. Styrmisdottir, Gisli H. Halldorsson, Egil Ferkingstad, Grimur Hjorleifsson Eldjarn, Doruk Beyter, Snædis Kristmundsdottir, Kristinn Juliusson, Run Fridriksdottir, Gudny A. Arnadottir, Hildigunnur Katrinardottir, Margret H. Snorradottir, Vinicius Tragante, Lilja Stefansdottir, Erna V. Ivarsdottir, Gyda Bjornsdottir, Bjarni V. Halldorsson, Gudmar Thorleifsson, Bjorn R. Ludviksson, Pall T. Onundarson, Saedis Saevarsdottir, Pall Melsted, Gudmundur L. Norddahl, Unnur S. Bjornsdottir, Thorunn Olafsdottir, Daniel F. Gudbjartsson, Unnur Thorsteinsdottir, Ingileif Jonsdottir, Patrick Sulem, and Kari Stefansson

Subjects
Biology (General), QH301-705.5
Abstract

Abstract Urticaria is a skin disorder characterized by outbreaks of raised pruritic wheals. In order to identify sequence variants associated with urticaria, we performed a meta-analysis of genome-wide association studies for urticaria with a total of 40,694 cases and 1,230,001 controls from Iceland, the UK, Finland, and Japan. We also performed transcriptome- and proteome-wide analyses in Iceland and the UK. We found nine sequence variants at nine loci associating with urticaria. The variants are at genes participating in type 2 immune responses and/or mast cell biology (CBLB, FCER1A, GCSAML, STAT6, TPSD1, ZFPM1), the innate immunity (C4), and NF-κB signaling. The most significant association was observed for the splice-donor variant rs56043070[A] (hg38: chr1:247556467) in GCSAML (MAF = 6.6%, OR = 1.24 (95%CI: 1.20–1.28), P-value = 3.6 × 10-44). We assessed the effects of the variants on transcripts, and levels of proteins relevant to urticaria pathophysiology. Our results emphasize the role of type 2 immune response and mast cell activation in the pathogenesis of urticaria. Our findings may point to an IgE-independent urticaria pathway that could help address unmet clinical need.

Published
2023
Full Text
View/download PDF

2. Genetic variants associated with platelet count are predictive of human disease and physiological markers

Author

Evgenia Mikaelsdottir, Gudmar Thorleifsson, Lilja Stefansdottir, Gisli Halldorsson, Jon K. Sigurdsson, Sigrun H. Lund, Vinicius Tragante, Pall Melsted, Solvi Rognvaldsson, Kristjan Norland, Anna Helgadottir, Magnus K. Magnusson, Gunnar B. Ragnarsson, Sigurdur Y. Kristinsson, Sigrun Reykdal, Brynjar Vidarsson, Ingibjorg J. Gudmundsdottir, Isleifur Olafsson, Pall T. Onundarson, Olof Sigurdardottir, Emil L. Sigurdsson, Gerdur Grondal, Arni J. Geirsson, Gudmundur Geirsson, Julius Gudmundsson, Hilma Holm, Saedis Saevarsdottir, Ingileif Jonsdottir, Gudmundur Thorgeirsson, Daniel F. Gudbjartsson, Unnur Thorsteinsdottir, Thorunn Rafnar, and Kari Stefansson

Subjects
Biology (General), QH301-705.5
Abstract

Evgenia Mikaelsdottir et al. report a study of variants associated with platelet count among European individuals where they identify 577 associations. They also report a genetic overlap between platelet count and human diseases, including myeloproliferative neoplasms, rheumatoid arthritis, and hypertension, as well as a genetic overlap between platelet count and various physiological markers.

Published
2021
Full Text
View/download PDF

3. Predicting the probability of death using proteomics

Author

Thjodbjorg Eiriksdottir, Steinthor Ardal, Benedikt A. Jonsson, Sigrun H. Lund, Erna V. Ivarsdottir, Kristjan Norland, Egil Ferkingstad, Hreinn Stefansson, Ingileif Jonsdottir, Hilma Holm, Thorunn Rafnar, Jona Saemundsdottir, Gudmundur L. Norddahl, Gudmundur Thorgeirsson, Daniel F. Gudbjartsson, Patrick Sulem, Unnur Thorsteinsdottir, Kari Stefansson, and Magnus O. Ulfarsson

Subjects
Biology (General), QH301-705.5
Abstract

Eiriksdottir et al. use a temporal proteomic dataset from over 22,000 Icelandic individuals to identify predictors and predict all-cause mortality. Their findings suggest that the plasma proteome may be of value in general health screening for risk of death.

Published
2021
Full Text
View/download PDF

4. A genome-wide meta-analysis yields 46 new loci associating with biomarkers of iron homeostasis

Author

Steven Bell, Andreas S. Rigas, Magnus K. Magnusson, Egil Ferkingstad, Elias Allara, Gyda Bjornsdottir, Anna Ramond, Erik Sørensen, Gisli H. Halldorsson, Dirk S. Paul, Kristoffer S. Burgdorf, Hannes P. Eggertsson, Joanna M. M. Howson, Lise W. Thørner, Snaedis Kristmundsdottir, William J. Astle, Christian Erikstrup, Jon K. Sigurdsson, Dragana Vuckovic, Khoa M. Dinh, Vinicius Tragante, Praveen Surendran, Ole B. Pedersen, Brynjar Vidarsson, Tao Jiang, Helene M. Paarup, Pall T. Onundarson, Parsa Akbari, Kaspar R. Nielsen, Sigrun H. Lund, Kristinn Juliusson, Magnus I. Magnusson, Michael L. Frigge, Asmundur Oddsson, Isleifur Olafsson, Stephen Kaptoge, Henrik Hjalgrim, Gudmundur Runarsson, Angela M. Wood, Ingileif Jonsdottir, Thomas F. Hansen, Olof Sigurdardottir, Hreinn Stefansson, David Rye, DBDS Genomic Consortium, James E. Peters, David Westergaard, Hilma Holm, Nicole Soranzo, Karina Banasik, Gudmar Thorleifsson, Willem H. Ouwehand, Unnur Thorsteinsdottir, David J. Roberts, Patrick Sulem, Adam S. Butterworth, Daniel F. Gudbjartsson, John Danesh, Søren Brunak, Emanuele Di Angelantonio, Henrik Ullum, and Kari Stefansson

Subjects
Biology (General), QH301-705.5
Abstract

Bell et al. report 46 new loci associated with biomarkers of iron homeostasis, including ferritin levels, iron binding capacity, and iron saturation, in the Icelandic, Danish and UK populations. The associated loci point to new iron-regulating proteins and important genetic differences between men and women.

Published
2021
Full Text
View/download PDF

5. The mother’s risk of premature death after child loss across two centuries

Author

Unnur A Valdimarsdóttir, Donghao Lu, Sigrún H Lund, Katja Fall, Fang Fang, Þórður Kristjánsson, Daníel Guðbjartsson, Agnar Helgason, and Kári Stefánsson

Subjects
child loss, psychological stress, mortality, attachment, sex difference, demography, Medicine, Science, Biology (General), QH301-705.5
Abstract

While the rare occurrence of child loss is accompanied by reduced life expectancy of parents in contemporary affluent populations, its impact in developing societies with high child mortality rates is unclear. We identified all parents in Iceland born 1800–1996 and compared the mortality rates of 47,711 parents who lost a child to those of their siblings (N = 126,342) who did not. The proportion of parents who experienced child loss decreased from 61.1% of those born 1800–1880 to 5.2% of those born after 1930. Child loss was consistently associated with increased rate of maternal, but not paternal, death before the age of 50 across all parent birth cohorts; the relative increase in maternal mortality rate ranged from 35% among mothers born 1800–1930 to 64% among mothers born after 1930. The loss of a child poses a threat to the survival of young mothers, even during periods of high infant mortality rates.

Published
2019
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results