Greinar- HÍ: Síðast bætt við

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    Brain age prediction using deep learning uncovers associated sequence variants 
    Jónsson, Benedikt Atli; Bjornsdottir, Gyda; Thorgeirsson, Thorgeir; Ellingsen, Lotta María; Walters, G. Bragi; Gudbjartsson, Daniel; Stefansson, Hreinn; Stefansson, Kari; Ulfarsson, Magnus (Springer Science and Business Media LLC, 2019-11-27)
    Machine learning algorithms can be trained to estimate age from brain structural MRI. The difference between an individual’s predicted and chronological age, predicted age difference (PAD), is a phenotype of relevance to aging and brain disease. Here, ...
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    An Isocaloric Nordic Diet Modulates RELA and TNFRSF1A Gene Expression in Peripheral Blood Mononuclear Cells in Individuals with Metabolic Syndrome—A SYSDIET Sub-Study 
    Ulven, Stine M.; Holven, Kirsten B.; Rundblad, Amanda; Myhrstad, Mari C. W.; Leder, Lena; Dahlman, Ingrid; Mello, Vanessa D. de; Schwab, Ursula; Carlberg, Carsten; Pihlajamäki, Jussi; Hermansen, Kjeld; Dragsted, Lars O.; Gunnarsdottir, Ingibjorg; Cloetens, Lieselotte; Åkesson, Björn; Rosqvist, Fredrik; Hukkanen, Janne; Herzig, Karl-Heinz; Savolainen, Markku J; Risérus, Ulf; Thorsdottir , Inga; Poutanen, Kaisa S; Arner, Peter; Uusitupa, Matti; Kolehmainen, Marjukka (MDPI AG, 2019-12-03)
    A healthy dietary pattern is associated with a lower risk of metabolic syndrome (MetS) and reduced inflammation. To explore this at the molecular level, we investigated the effect of a Nordic diet (ND) on changes in the gene expression profiles of ...
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    Disappearance of Icelandic Walruses Coincided with Norse Settlement 
    Keighley, Xénia; Palsson, Snaebjorn; Einarsson, Bjarni F; Petersen, Ævar; Fernández-Coll, Meritxell; Jordan, Peter; Olsen, Morten Tange; Malmquist, Hilmar (Oxford University Press (OUP), 2019-09-12)
    There is a growing body of evidence demonstrating the impacts of human arrival in new “pristine” environments, including terrestrial habitat alterations and species extinctions. However, the effects of marine resource utilization prior to industrialized ...
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    Doxycycline and Monocaprin In Situ Hydrogel: Effect on Stability, Mucoadhesion and Texture Analysis and In Vitro Release 
    Patlolla, Venu Gopal Reddy; Peter Holbrook, William; Gizurarson, Sveinbjorn; Kristmundsdóttir, Thórdís (MDPI AG, 2019-12-09)
    The aim of this study was to develop a stable aqueous formulation containing a combination of doxycycline and monocaprin in clinically relevant concentrations. Increase in expression of Matrix metalloproteinases (MMPs) and microbial role in oral ...
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    Serial dependence in a simulated clinical visual search task 
    Manassi, Mauro; Kristjansson, Arni; Whitney, David (Springer Science and Business Media LLC, 2019-12-01)
    In everyday life, we continuously search for and classify objects in the environment around us. This kind of visual search is extremely important when performed by radiologists in cancer image interpretation and officers in airport security screening. ...
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    Combined artificial high-silicate medium and LED illumination promote carotenoid accumulation in the marine diatom Phaeodactylum tricornutum 
    Yi, Zhiqian; Su, Yixi; Cherek, Paulina; Nelson, David R.; Lin, Jianping; Rolfsson, Óttar; Wu, Hua; Salehi-Ashtiani, Kourosh; Brynjolfsson, Sigurdur; Fu, Weiqi (Springer Science and Business Media LLC, 2019-12-02)
    Background: Diatoms, which can accumulate large amounts of carotenoids, are a major group of microalgae and the dominant primary producer in marine environments. Phaeodactylum tricornutum, a model diatom species, acquires little silicon for its growth ...
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    Association between prescription of hypnotics/anxiolytics and mortality in multimorbid and non-multimorbid patients: a longitudinal cohort study in primary care 
    Linnet, Kristjan; Sigurdsson, Johann Agust; Tómasdóttir, Margrét Ólafía; Sigurðsson, Emil Lárus; Guðmundsson, Lárus Steinþór (BMJ, 2019-12-05)
    Objectives To assess the risk of mortality in primary care patients, multimorbid (≥2 chronic conditions) or not, prescribed hypnotics/anxiolytics. Design A longitudinal cohort study Setting Primary healthcare in the Reykjavik area. Participants 114 084 ...
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    Psychiatric disorders and cardiovascular diseases during the diagnostic workup of potential breast cancer: a population-based cohort study in Skåne, Sweden 
    Shen, Qing; Jöud, Anna; Schelin, Maria E. C.; Sjölander, Arvid; Cao, Yang; Sparén, Pär; Fall, Katja; Czene, Kamila; Valdimarsdottir, Unnur; Fang, Fang (Springer Science and Business Media LLC, 2019-12-10)
    Background: An increasing number of women are evaluated for potential breast cancer and may experience mental distress during evaluation. We aim to assess the risks of psychiatric disorders and cardiovascular diseases during the diagnostic workup of ...
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    Cumulative risk over the early life course and its relation to academic achievement in childhood and early adolescence 
    Ragnarsdóttir, Laufey Dís; Kristjansson, Alfgeir; Þórisdóttir, Ingibjörg E.; Allegrante, John; Valdimarsdottir, Heiddis; Gestsdóttir, Steinunn; Sigfúsdóttir, Inga Dóra (Elsevier BV, 2017-03)
    Early-life risk factors, such as family disruption, maltreatment, and poverty, can negatively impact children's scholastic abilities; however, most previous studies have relied on cross-sectional designs and retrospective measurement. This study ...
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    Stress and adolescent well-being: the need for an interdisciplinary framework 
    Sigfúsdóttir, Inga Dóra; Kristjansson, Alfgeir; Þórlindsson, Þórólfur; Allegrante, John (Oxford University Press (OUP), 2016-05-06)
    Stress and strain among adolescents have been investigated and discussed largely within three separate disciplines: mental health, where the focus has been on the negative effects of stress on emotional health; criminology, where the emphasis has been ...
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    Hydroclimate in the Pamirs Was Driven by Changes in Precipitation‐Evaporation Seasonality Since the Last Glacial Period 
    Aichner, Bernhard; Makhmudov, Zafar; Rajabov, Ilhomjon; Zhang, Qiong; Pausata, Francesco S. R.; Werner, Martin; Heinecke, Liv; Kuessner, Marie L.; Feakins, Sarah J.; Sachse, Dirk; Mischke, Steffen (American Geophysical Union (AGU), 2019-12-03)
    The Central Asian Pamir Mountains (Pamirs) are a high-altitude region sensitive to climatic change, with only few paleoclimatic records available. To examine the glacial-interglacial hydrological changes in the region, we analyzed the geochemical ...
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    3D shape analyses of extant primate and fossil hominin vertebrae support the ancestral shape hypothesis for intervertebral disc herniation 
    Plomp, Kimberly A.; Dobney, Keith; Weston, Darlene A.; Viðarsdóttir, Una Strand; Collard, Mark (Springer Science and Business Media LLC, 2019-12-16)
    Background: Recently we proposed an evolutionary explanation for a spinal pathology that afflicts many people, intervertebral disc herniation (Plomp et al. [2015] BMC Evolutionary Biology 15, 68). Using 2D data, we found that the bodies and pedicles ...
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    Multi-sensory training and wrist fractures: a randomized, controlled trial 
    Baldursdottir, Bergthora; Whitney, Susan L.; Ramel, Alfons; Jónsson, Pálmi V.; Mogensen, Brynjólfur; Petersen, Hannes; Kristinsdóttir, Ella K. (Springer Science and Business Media LLC, 2019-02-11)
    Background: Asymmetric vestibular function, decreased plantar sensation, postural control and functional ability have been associated with fall-related wrist fractures. Objective: To investigate whether multi-sensory training (MST) improves postural ...
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    Association of Genetically Predicted Lipid Levels With the Extent of Coronary Atherosclerosis in Icelandic Adults 
    Björnsson, Eyþór; Þorleifsson, Guðmar; Helgadóttir, Anna; Gudnason, Thorarinn; Gudbjartsson, Tomas; Andersen, Karl; Grétarsdóttir, Sólveig; Ólafsson, Ísleifur; Tragante, Vinicius; Ólafsson, Ólafur Hreiðar; Jónsdóttir, Birna; Eyjólfsson, Guðmundur I.; Sigurðardóttir, Ólöf; Thorgeirsson, Gudmundur; Gudbjartsson, Daniel; Thorsteinsdottir, Unnur; Holm, Hilma; Stefansson, Kari (American Medical Association (AMA), 2020-01-01)
    Importance: Genetic studies have evaluated the influence of blood lipid levels on the risk of coronary artery disease (CAD), but less is known about how they are associated with the extent of coronary atherosclerosis. Objective: To estimate the ...
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    Lipoprotein(a) Concentration and Risks of Cardiovascular Disease and Diabetes 
    Gudbjartsson, Daniel; Thorgeirsson, Gudmundur; sulem, patrick; Helgadottir, Anna; Gylfason, Arnaldur; Sæmundsdóttir, Jóna; Björnsson, Eyþór; Norðdahl, Guðmundur L.; Jónasdóttir, Áslaug; Jónasdóttir, Aðalbjörg; Eggertsson, Hannes; Grétarsdóttir, Sólveig; Thorleifsson, Gudmar; Indridason, Olafur Skuli; Palsson, Runolfur; Jónasson, Friðbert; Jonsdottir, Ingileif; Eyjólfsson, Guðmundur I.; Sigurðardóttir, Ólöf; Ólafsson, Ísleifur; Danielsen, Ragnar; Matthíasson, Stefán E.; Kristmundsdóttir, Snædís; Halldórsson, Bjarni V.; Hreiðarsson, Ástráður Benedikt; Valdimarsson, Einar M.; Gudnason, Thorarinn; Benediktsson, Rafn; Steinthorsdottir, Valgerdur; Thorsteinsdottir, Unnur; Holm, Hilma; Stefansson, Kari (Elsevier BV, 2019-12-17)
    Background: Lipoprotein(a) [Lp(a)] is a causal risk factor for cardiovascular diseases that has no established therapy. The attribute of Lp(a) that affects cardiovascular risk is not established. Low levels of Lp(a) have been associated with type 2 ...
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    Preferred posture in lying and its association with scoliosis and windswept hips in adults with cerebral palsy 
    Ágústsson, Atli; Sveinsson, Thorarinn; Pope, Pauline; Rodby-Bousquet, Elisabet (Informa UK Limited, 2018-07-16)
    Objective: The aim of this study was to clarify the association of scoliosis and windswept hips with immobility, lying position, and time in lying, in adults with cerebral palsy (CP). Methods: This cross-sectional study included 830 adults (469 males ...
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    Associations between intraoperative factors and surgeons’ self-assessed operative satisfaction 
    Erestam, Sofia; Bock, David; Erichsen Andersson, Annette; Bjartell, Anders; Carlsson, Stefan; Stinesen Kollberg, Karin; Sjoberg, Daniel; Steineck, Gunnar; Stranne, Johan; Þorsteinsdóttir, Þórdís; Tyritzis, Stavros; Wallerstedt Lantz, Anna; Wiklund, Peter; Angenete, Eva; Haglind, Eva (Springer Science and Business Media LLC, 2019-03-18)
    Background: Little is known concerning what may infuence surgeon satisfaction with a surgical procedure and its associations with intraoperative factors. The objective was to explore the relationships between surgeons’ self-assessed satisfaction with ...
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    Maternal smoking during pregnancy and scholastic achievement in childhood: evidence from the LIFECOURSE cohort study 
    Kristjansson, Alfgeir; Þórisdóttir, Ingibjörg E.; Steingrimsdottir, Thora; Allegrante, John; Lilly, Christa L.; Sigfúsdóttir, Inga Dóra (Oxford University Press (OUP), 2017-05-28)
    Research on the impact of maternal smoking during pregnancy (MSDP) on scholastic achievement in the offspring has shown conflicting findings. The objective of this study was to assess the impact of MSDP on scholastic achievement in a birth cohort of ...
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    Short-Term Seismic Precursors to Icelandic Eruptions 1973–2014 
    Einarsson, Páll (Frontiers Media SA, 2018-05-08)
    Networks of seismographs of high sensitivity have been in use in the vicinity of active volcanoes in Iceland since 1973. During this time, 21 confirmed eruptions have occurred and several intrusions where magma did not reach the surface. All these ...
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    Population distribution of traditional and the emerging cardiovascular risk factors carotid plaque and IMT: the REFINE-Reykjavik study with comparison with the Tromsø study 
    Thorsson, Bolli; Eiriksdottir, Gudny; Sigurðsson, Sigurður; Guðmundsson, Elías Freyr; Bots, Michael L; Aspelund, Thor; Arntzen, Kjell Arne; Mathiesen, Ellisiv B; Gudnason, Vilmundur (BMJ, 2018-05-01)
    Objectives Population statistics for carotid plaque and cardiovascular risk factors reported in scientific journals are usually presented as averages for the population or age and sex adjusted, rather than sex and age groups. Important population ...