J Halfvarson

Summary

Affiliation: Orebro University Hospital
Country: Sweden

Publications

  1. pmc IL23R in the Swedish, Finnish, Hungarian and Italian populations: association with IBD and psoriasis, and linkage to celiac disease
    Elisabet Einarsdottir
    Department of Medical Genetics, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland
    BMC Med Genet 10:8. 2009
  2. ncbi request reprint Inflammatory bowel disease in a Swedish twin cohort: a long-term follow-up of concordance and clinical characteristics
    Jonas Halfvarson
    Division of Gastroenterology, Department of Medicine, Orebro University Hospital, S 701 85 Orebro, Sweden
    Gastroenterology 124:1767-73. 2003
  3. pmc Anti-Saccharomyces cerevisiae antibodies in twins with inflammatory bowel disease
    J Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, Orebro 70185, Sweden
    Gut 54:1237-43. 2005
  4. ncbi request reprint CARD15/NOD2 polymorphisms do not explain concordance of Crohn's disease in Swedish monozygotic twins
    J Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, 701 85 Orebro, Sweden
    Dig Liver Dis 37:768-72. 2005
  5. ncbi request reprint Environmental factors in inflammatory bowel disease: a co-twin control study of a Swedish-Danish twin population
    Jonas Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 12:925-33. 2006
  6. ncbi request reprint Longitudinal concordance for clinical characteristics in a Swedish-Danish twin population with inflammatory bowel disease
    Jonas Halfvarson
    Department of Internal Medicine, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 13:1536-44. 2007
  7. doi request reprint Genetics in twins with Crohn's disease: less pronounced than previously believed?
    Jonas Halfvarson
    Department of Internal Medicine, Division of Gastroenterology, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 17:6-12. 2011
  8. doi request reprint Smoking is a risk factor for recurrence of intestinal stricture after endoscopic dilation in Crohn's disease
    A Gustavsson
    Department of Medicine, Division of Gastroenterology, Orebro University Hospital, Orebro, Sweden
    Aliment Pharmacol Ther 37:430-7. 2013
  9. doi request reprint Infliximab as rescue therapy in hospitalised patients with steroid-refractory acute ulcerative colitis: a long-term follow-up of 211 Swedish patients
    M Sjoberg
    School of Health and Medical Sciences, Orebro University, Orebro, Sweden
    Aliment Pharmacol Ther 38:377-87. 2013
  10. doi request reprint Endoscopic dilation is an efficacious and safe treatment of intestinal strictures in Crohn's disease
    A Gustavsson
    Department of Medicine, Division of Gastroenterology, Orebro University Hospital, Sweden
    Aliment Pharmacol Ther 36:151-8. 2012

Collaborators

Detail Information

Publications13

  1. pmc IL23R in the Swedish, Finnish, Hungarian and Italian populations: association with IBD and psoriasis, and linkage to celiac disease
    Elisabet Einarsdottir
    Department of Medical Genetics, Biomedicum Helsinki, University of Helsinki, Helsinki, Finland
    BMC Med Genet 10:8. 2009
    ..IL23R also associates with psoriasis, suggesting that the gene may be an important candidate for many chronic inflammatory diseases...
  2. ncbi request reprint Inflammatory bowel disease in a Swedish twin cohort: a long-term follow-up of concordance and clinical characteristics
    Jonas Halfvarson
    Division of Gastroenterology, Department of Medicine, Orebro University Hospital, S 701 85 Orebro, Sweden
    Gastroenterology 124:1767-73. 2003
    ..The aim of the current study was to follow up these twins regarding new cases of inflammatory bowel disease and Crohn's disease characteristics using the Vienna classification...
  3. pmc Anti-Saccharomyces cerevisiae antibodies in twins with inflammatory bowel disease
    J Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, Orebro 70185, Sweden
    Gut 54:1237-43. 2005
    ..Whether ASCA is a familial trait due to genetic factors or is caused by exposure to environmental factors is unknown. To assess the genetic influence of ASCA we studied its occurrence in a twin population...
  4. ncbi request reprint CARD15/NOD2 polymorphisms do not explain concordance of Crohn's disease in Swedish monozygotic twins
    J Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, 701 85 Orebro, Sweden
    Dig Liver Dis 37:768-72. 2005
    ..CARD15/NOD2 polymorphisms are associated with Crohn's disease. There is a high concordance for disease and disease phenotype in monozygotic twin pairs with Crohn's disease...
  5. ncbi request reprint Environmental factors in inflammatory bowel disease: a co-twin control study of a Swedish-Danish twin population
    Jonas Halfvarson
    Division of Gastroenterology, Department of Internal Medicine, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 12:925-33. 2006
    ..Genetics and environmental factors are implicated in the etiology of inflammatory bowel disease (IBD). We studied environmental factors in a population-based Swedish-Danish twin cohort using the co-twin control method...
  6. ncbi request reprint Longitudinal concordance for clinical characteristics in a Swedish-Danish twin population with inflammatory bowel disease
    Jonas Halfvarson
    Department of Internal Medicine, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 13:1536-44. 2007
    ..We therefore aimed to study longitudinal concordance for clinical characteristics and longitudinal stability using the Montreal Classification in an IBD twin population...
  7. doi request reprint Genetics in twins with Crohn's disease: less pronounced than previously believed?
    Jonas Halfvarson
    Department of Internal Medicine, Division of Gastroenterology, Orebro University Hospital, Orebro, Sweden
    Inflamm Bowel Dis 17:6-12. 2011
    ..The aims were to establish reliable concordance rates and compare phenotypic characteristics in concordant and discordant monozygotic pairs, anticipating the former reflects a genetically determined subgroup...
  8. doi request reprint Smoking is a risk factor for recurrence of intestinal stricture after endoscopic dilation in Crohn's disease
    A Gustavsson
    Department of Medicine, Division of Gastroenterology, Orebro University Hospital, Orebro, Sweden
    Aliment Pharmacol Ther 37:430-7. 2013
    ..Endoscopic balloon dilation is an efficacious and safe alternative to surgery as treatment of short intestinal strictures in Crohn's disease (CD). Factors predicting outcome of the procedure are not well described...
  9. doi request reprint Infliximab as rescue therapy in hospitalised patients with steroid-refractory acute ulcerative colitis: a long-term follow-up of 211 Swedish patients
    M Sjoberg
    School of Health and Medical Sciences, Orebro University, Orebro, Sweden
    Aliment Pharmacol Ther 38:377-87. 2013
    ..Rescue therapy with infliximab (IFX) has been proven effective in a steroid-refractory attack of ulcerative colitis (UC). The long-term efficacy is not well described...
  10. doi request reprint Endoscopic dilation is an efficacious and safe treatment of intestinal strictures in Crohn's disease
    A Gustavsson
    Department of Medicine, Division of Gastroenterology, Orebro University Hospital, Sweden
    Aliment Pharmacol Ther 36:151-8. 2012
    ..Bowel strictures are a major cause of morbidity, hospitalisation and surgery in Crohn's disease...
  11. ncbi request reprint Long-term colectomy rate after intensive intravenous corticosteroid therapy for ulcerative colitis prior to the immunosuppressive treatment era
    Anders Gustavsson
    Division of Gastroenterology, Department of Medicine, Orebro University Hospital, Orebro, Sweden
    Am J Gastroenterol 102:2513-9. 2007
    ..The long-term prognosis in this patient group is not well described. We studied the long-term colectomy and relapse rates in patients given intensive intravenous corticosteroid treatment (IIVT) for acute UC...
  12. doi request reprint Molecular analysis of the gut microbiota of identical twins with Crohn's disease
    Johan Dicksved
    Department of Microbiology, Swedish University of Agricultural Sciences, Uppsala, Sweden
    ISME J 2:716-27. 2008
    ..However, CD is associated with dramatic changes in the gut microbiota and this was particularly evident for individuals with ileal CD...
  13. ncbi request reprint Detection of antisynthetic mannoside antibodies (ASigmaMA) reveals heterogeneity in the ASCA response of Crohn's disease patients and contributes to differential diagnosis, stratification, and prediction
    Peggy Vandewalle-El Khoury
    INSERM, U799, Lille, France
    Am J Gastroenterol 103:949-57. 2008
    ....