Blar i Institutt for nevromedisin og bevegelsesvitenskap på forfatter "Zwart, John Anker Henrik"
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Amoxicillin did not Reduce Modic Change Oedema in Patients with Chronic Low Back pain - subgroup Analyses of a Randomised Trial (the AIM study)
Kristoffersen, Per Martin; Vetti, Nils; Grøvle, Lars; Brox, Jens Ivar; Bråten, Lars Christian Haugli; Grotle, Margreth; Haugen, Anne Julsrud; Rolfsen, Mads Peder; Froholdt, Anne; Skouen, Jan Sture; Lutro, Olav; Marchand, Gunn Hege; Anke, Audny Gabriele Wagner; Zwart, John Anker Henrik; Storheim, Kjersti; Assmus, Jörg; Espeland, Ansgar (Peer reviewed; Journal article, 2022)Study Design - Exploratory subgroup analyses of a randomised trial [Antibiotics in Modic changes (AIM) study]. Objective - The aim was to assess the effect of amoxicillin versus placebo in reducing Modic change (MC) edema ... -
Apparent diffusion coefficient values in Modic changes – interobserver reproducibility and relation to Modic type
Dagestad, Magnhild Hammersland; Vetti, Nils; Kristoffersen, Per M; Zwart, John Anker Henrik; Storheim, Kjersti; Bakland, Gunnstein; Brox, Jens Ivar; Grøvle, Lars; Marchand, Gunn Hege; Andersen, Erling; Assmus, Jörg; Espeland, Ansgar (Peer reviewed; Journal article, 2022)Background Modic Changes (MCs) in the vertebral bone marrow were related to back pain in some studies but have uncertain clinical relevance. Diffusion weighted MRI with apparent diffusion coefficient (ADC)-measurements ... -
Cluster Headache Genomewide Association Study and Meta-Analysis Identifies Eight Loci and Implicates Smoking as Causal Risk Factor
Winsvold, Bendik Kristoffer Slagsvold; Harder, Aster V. E.; Ran, Caroline; Chalmer, Mona A.; Dalmasso, Maria Carolina; Ferkingstad, Egil; Tripathi, Kumar Parijat; Bacchelli, Elena; Børte, Sigrid; Fourier, Carmen; Petersen, Anja S.; Vijfhuizen, Lisanne S.; Magnusson, Sigurdur H.; O'Connor, Emer; Bjornsdottir, Gyda; Häppölä, Paavo; Wang, Yen-Feng; Callesen, Ida; Kelderman, Tim; Gallardo, Victor J; de Boer, Irene; Olofsgård, Felicia Jennysdotter; Heinze, Katja; Lund, Nunu; Thomas, Laurent Francois; Hsu, Chia-Lin; Pirinen, Matti; Hautakangas, Heidi; Ribasés, Marta; Guerzoni, Simona; Sivakumar, Prasanth; Yip, Janice; Heinze, Axel; Küçükali, Fahri; Ostrowski, Sisse R.; Pedersen, Ole B.; Kristoffersen, Espen Saxhaug; Martinsen, Amy; Artigas, María S.; Lagrata, Susie; Cainazzo, Maria Michela; Adebimpe, Joycee; Quinn, Olivia; Göbel, Carl; Cirkel, Anna; Volk, Alexander E.; Heilmann-Heimbach, Stefanie; Skogholt, Anne Heidi; Gabrielsen, Maiken Elvestad; Wilbrink, Leopoldine A.; Danno, Daisuke; Mehta, Dwij; Guðbjartsson, Daníel F.; Rosendaal, Frits Richard; Willems van Dijk, Ko; Fronczek, Rolf; Wagner, Michael; Scherer, Martin; Göbel, Hartmut; Sleegers, Kristel; Sveinsson, Olafur A.; Pani, Luca; Zoli, Michele; Ramos-Quiroga, Josep A.; Dardiotis, Efthimios; Steinberg, Anna; Riedel-Heller, Steffi; Sjöstrand, Christina; Thorgeirsson, Thorgeir E.; Stefansson, Hreinn; Southgate, Laura; Trembath, Richard C.; Vandrovcova, Jana; Noordam, Raymond; Paemeleire, Koen; Stefansson, Kari; Fann, Cathy Shen-Jang; Waldenlind, Elisabet; Tronvik, Erling Andreas; Jensen, Rigmor H.; Chen, Shih-Pin; Houlden, Henry; Terwindt, Gisela M.; Kubisch, Christian; Maestrini, Elena; Vikelis, Michail; Pozo-Rosich, Patricia; Belin, Andrea C.; Matharu, Manjit; van den Maagdenberg, Arn M.J.M.; Hansen, Thomas; Ramirez, Alfredo; Zwart, John Anker Henrik (Peer reviewed; Journal article, 2023)Objective The objective of this study was to aggregate data for the first genomewide association study meta-analysis of cluster headache, to identify genetic risk variants, and gain biological insights. Methods A ... -
COL11A1 is associated with developmental dysplasia of the hip and secondary osteoarthritis in the HUNT study
Jacobsen, Kaya Kvarme; Børte, Sigrid; Laborie, Lene Bjerke; Kristiansen, Hege; Schäfer, Annette; Gundersen, Trude; Zayats, Tetyana; Winsvold, Bendik Kristoffer Slagsvold; Karen, Rosendahl; Martinsen, Amy; Skogholt, Anne Heidi; Brumpton, Ben Michael; Willer, Cristen J; Fors, Egil Andreas; Kristoffersen, Espen Saxhaug; Heuch, Ingrid; Mundal, Ingunn Pernille; Zwart, John Anker Henrik; Nielsen, Jonas B.; Storheim, Kjersti; Hagen, Knut; Nilsen, Kristian Bernhard; Hveem, Kristian; Fritsche, Lars G; Thomas, Laurent Francois; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Lie, Marie U.; Stensland, Synne; Zhou, Wei (Peer reviewed; Journal article, 2023)Objective: Developmental dysplasia of the hip (DDH) is a congenital condition affecting 2-3% of all infants. DDH increases the risk of osteoarthritis, is the cause of 30% of all total hip arthroplasties (THAs) in adults ... -
Dissecting the shared genetic basis of migraine and mental disorders using novel statistical tools
Bahrami, Shahram; Hindley, Guy Frederick Lanyon; Winsvold, Bendik K S; O'Connell, Kevin S; Frei, Oleksandr; Shadrin, Alexey; Cheng, Weiqiu; Bettella, Francesco; Rødevand, Linn; Ødegaard, Ketil Joachim; Fan, Chun C; Pirinen, Matti J; Hautakangas, Heidi M; Martinsen, Amy; Skogholt, Anne Heidi; Brumpton, Ben Michael; Willer, Cristen J; Tronvik, Erling Andreas; Kristoffersen, Espen Saxhaug; Zwart, John Anker Henrik; Nielsen, Jonas Bille; Hagen, Knut; Nilsen, Kristian Bernhard; Hveem, Kristian; Stovner, Lars Jacob; Fritsche, Lars; Thomas, Laurent; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Johnsen, Marianne Bakke; Lie, Marie; Holmen, Oddgeir Lingaas; Børte, Sigrid; Stensland, Synne; Zhou, Wei; Dale, Anders; Djurovic, Srdjan; Smeland, Olav Bjerkehagen; Andreassen, Ole (Peer reviewed; Journal article, 2022)Migraine is three times more prevalent in people with bipolar disorder or depression. The relationship between schizophrenia and migraine is less certain although glutamatergic and serotonergic neurotransmission are ... -
Does the risk of chronic low back pain depend on age at menarche or menopause? A population-based cross-sectional and cohort study: the Trøndelag Health Study
Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Storheim, Kjersti; Zwart, John Anker Henrik (Peer reviewed; Journal article, 2022)Objective In most population-based studies of low back pain (LBP), women have a higher risk than men, possibly reflecting hormonal influences. The aim of this study was to explore associations between age at menarche and ... -
Genome-wide analysis identifies impaired axonogenesis in chronic overlapping pain conditions
Khoury, Samar; Parisien, Marc; Thompson, Scott J.; Vachon-Presseau, Etienne; Roy, Mathieu; Mitchell, Amy; Winsvold, Bendik K S; Skogholt, Anne Heidi; Brumpton, Ben Michael; Willer, Cristen J.; Fors, Egil Andreas; Heuch, Ingrid; Nielsen, Jonas Bille; Storheim, Kjersti; Hagen, Knut; Nilsen, Kristian Bernhard; Hveem, Kristian; Fritsche, Lars; Thomas, Laurent; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Johnsen, Marianne Bakke; Lie, Marie; Holmen, Oddgeir; Børte, Sigrid; Stensland, Synne; Zhou, Wei; Mundal, Ingunn Pernille; Zwart, John Anker Henrik; Kania, Artur; Mogil, Jeffrey S.; Diatchenko, Luda (Peer reviewed; Journal article, 2021)Chronic pain is often present at more than one anatomical location, leading to chronic overlapping pain conditions (COPC). Whether COPC represents a distinct pathophysiology from the occurrence of pain at only one site is ... -
Genome-wide analysis of 102,084 migraine cases identifies 123 risk loci and subtype-specific risk alleles
Hautakangas, Heidi; Winsvold, Bendik K S; Ruotsalainen, Sanni; Bjornsdottir, Gyda; Harder, Aster V. E.; Kogelman, Lisette J. A.; Thomas, Laurent; Noordam, Raymond; Benner, Christian; Gormley, Padhraig; Artto, Ville; Banasik, Karina; Bjornsdottir, Anna; Boomsma, Dorret I.; Brumpton, Ben Michael; Burgdorf, Kristoffer Sølvsten; Buring, Julie E.; Chalmer, Mona Ameri; de Boer, Irene; Dichgans, Martin; Erikstrup, Christian; Färkkilä, Markus; Gabrielsen, Maiken Elvestad; Ghanbari, Mohsen; Hagen, Knut; Häppölä, Paavo; Hottenga, Jouke-Jan; Hrafnsdottir, Maria G.; Hveem, Kristian; Johnsen, Marianne Bakke; Kähönen, Mika; Kristoffersen, Espen Saxhaug; Kurth, Tobias; Lehtimäki, Terho; Lighart, Lannie; Magnusson, Sigurdur H.; Malik, Rainer; Pedersen, Ole Birger; Pelzer, Nadine; Penninx, Brenda W. J. H.; Ran, Caroline; Ridker, Paul M.; Rosendaal, Frits Richard; Sigurdardottir, Gudrun R.; Skogholt, Anne Heidi; Sveinsson, Olafur A.; Thorgeirsson, Thorgeir E.; Ullum, Henrik; Zwart, John Anker Henrik (Peer reviewed; Journal article, 2022)Migraine affects over a billion individuals worldwide but its genetic underpinning remains largely unknown. Here, we performed a genome-wide association study of 102,084 migraine cases and 771,257 controls and identified ... -
Genome-wide association study identifies RNF123 locus as associated with chronic widespread musculoskeletal pain
Rahman, Shafiqur; Winsvold, Bendik K S; Chavez, Sergio; Børte, Sigrid; Tsepilov, Vakov; Sharapov, Sodbo Zh; Aulchenko, Yurii S.; Hagen, Knut; Fors, Egil Andreas; Hveem, Kristian; Zwart, John Anker Henrik; Meurs, Joyce van; Freidin, Maxim B.; Williams, Frances Mk (Peer reviewed; Journal article, 2021)Abstract Background and objectives Chronic widespread musculoskeletal pain (CWP) is a symptom of fibromyalgia and a complex trait with poorly understood pathogenesis. CWP is heritable (48%–54%), but its genetic architecture ... -
A genome-wide association study with 1,126,563 individuals identifies new risk loci for Alzheimer's disease
Wightman, Douglas P.; Jansen, Iris E.; Savage, Jeanne E.; Shadrin, Alexey; Bahrami, Shahram; Holland, Dominic; Rongve, Arvid; Børte, Sigrid; Winsvold, Bendik K S; Drange, Ole Kristian; Martinsen, Amy E.; Skogholt, Anne Heidi; Willer, Cristen; Bråthen, Geir; Bosnes, Ingunn; Nielsen, Jonas Bille; Fritsche, Lars; Thomas, Laurent; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Johnsen, Marianne Bakke; Meisingset, Tore Wergeland; Zhou, Wei; Proitsi, Petroula; Hodges, Angela; Dobson, Richard; Velayudhan, Latha; Sealock, Julia; Davis, Lea K.; Pedersen, Nancy L.; Reynolds, Chandra A.; Karlsson, Ida K.; Magnusson, Sigurdur; Stefansson, Hreinn; Thordardottir, Steinunn; Jónsson, Pálmi V.; Snædal, Jon; Zettergren, Anna; Skoog, Ingmar; Kern, Silke; Waern, Margda; Zetterberg, Henrik; Blennow, Kaj; Stordal, Eystein; Hveem, Kristian; Zwart, John Anker Henrik; Athanasiu, Lavinia; Selnes, Per; Saltvedt, Ingvild; Sando, Sigrid Botne; Ulstein, Ingun; Djurovic, Srdjan; Fladby, Tormod; Aarsland, Dag; Selbæk, Geir; Ripke, Stephan; Stefánsson, Kári; Andreassen, Ole; Posthuma, Danielle (Journal article; Peer reviewed, 2021)Late-onset Alzheimer’s disease is a prevalent age-related polygenic disease that accounts for 50–70% of dementia cases. Currently, only a fraction of the genetic variants underlying Alzheimer’s disease have been identified. ... -
Low Back Pain With Persistent Radiculopathy; the Clinical Role of Genetic Variants in the Genes SOX5, CCDC26/GSDMC and DCC
Lie, Marie; Pedersen, Linda Margareth; Heuch, Ingrid; Winsvold, Bendik K S; Gjerstad, Johannes; Hasvik, Eivind Olay; Nygaard, Øystein Petter; Grotle, Margreth; Matre, Dagfinn; Zwart, John Anker Henrik; Nilsen, Kristian Bernhard (Peer reviewed; Journal article, 2022)In a recently published genome-wide association study (GWAS) chronic back pain was associated with three loci; SOX5, CCDC26/GSDMC and DCC. This GWAS was based on a heterogeneous sample of back pain disorders, and it is ... -
Menopausal hormone therapy, oral contraceptives and risk of chronic low back pain: the HUNT Study
Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Storheim, Kjersti; Zwart, John Anker Henrik (Peer reviewed; Journal article, 2023)Background There are indications that use of menopausal hormone therapy (MHT) and oral contraceptives (OC) increases the risk of low back pain (LBP), with higher oestrogen levels involved in the underlying mechanisms. ...