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  • 51.
    Stjernman, Henrik
    et al.
    Division of Gastroenterology, Department of Medicine, County Hospital Ryhov, Jönköping, Sweden.
    Tysk, Curt
    Örebro University Hospital, Sweden.
    Almer, Sven
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
    Ström, Magnus
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Endocrinology and Gastroenterology UHL.
    Hjortswang, Henrik
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
    Worries and concerns in a large unselected cohort of patients with Crohns disease2010In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 45, no 6, p. 696-706Article in journal (Refereed)
    Abstract [en]

    Objective. Disease-related worries constitute an important dimension of patient-reported perception of health status in inflammatory bowel disease (IBD). The Rating Form of IBD Patient Concerns (RFIPC) questionnaire is purported to measure IBD-related worries. This study evaluated the psychometric properties of a Swedish translation of RFIPC in an unselected population of Crohns disease (CD) patients. The degree and nature of the worries were characterized and predictive factors for outcome of RFIPC and underlying dimensions were identified. Material and Methods. The RFIPC was completed by 447 CD patients in conjunction with regular visits. A physician global assessment of disease activity and four other health-related quality of life (HRQL) questionnaires were used for construct validity. Reliability and responsiveness were evaluated with follow-up visits. Underlying dimension and predictive factors were identified with factor analysis and multiple linear regression analysis. Results. Test-retest reliability was 0.90, correlation with corresponding HRQL measures 0.60-0.80 and responsiveness ratio 0.84. Median RFIPC sum score was lower than in previous studies. Top three concerns were ostomy, energy level and bowel control. Four dimensions were identified in descending order of concern: disease-related complications, daily-life achievements, intimacy, and stigmatization. Predictors of RFIPC score were disease activity, gender, and BMI (p andlt; 0.001-0.008). Conclusions. The Swedish version of RFIPC exhibited an adequate psychometric performance in CD patients, but was less sensitive to change in disease activity. The patients were more concerned about complications and achievement than intimacy and stigmatization. The strongest predictors of more worry were active disease, female gender and higher BMI.

  • 52.
    Svensson, M
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine.
    Ström, Magnus
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Gastroenterology and Hepatology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, EMK-magtarm.
    Nilsson, Maud
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine.
    Sörberg, M
    Nilsson, Lennart
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine.
    Pharmacodynamic effects of nitroimidazoles alone and in combination with clarithromycin on Helicobacter pylori2002In: Antimicrobial Agents and Chemotherapy, ISSN 0066-4804, E-ISSN 1098-6596, Vol. 46, no 7, p. 2244-2248Article in journal (Refereed)
    Abstract [en]

    Pharmacodynamic studies of Helicobacter pylori exposed to metronidazole and tinidazole alone and in combination with clarithromycin were performed by bioluminescence assay of intracellular ATP. The pharmacodynamic parameter control-related effective regrowth time (CERT) was used. CERT is defined as the time required for the resumption of logarithmic growth and a return of the level of growth to the preexposure inoculum in the test culture minus the corresponding time in the control culture. CERT measures the combined effects of the initial level of killing and postantibiotic effect. The incubation times and drug concentrations were chosen according to their half-lives and their clinically achievable concentrations. The study shows that the parameter CERT is useful for the testing of antibiotic combinations. The CERTs induced by clarithromycin, metronidazole, and tinidazole alone and in the combinations tested were concentration dependent, with no maximum response, indicating that the use of high doses may be preferable. The combinations with the highest concentrations induced synergistic effects and prevented regrowth. The use of tinidazole in combination with clarithromycin proved to give the longest CERTs, indicating that this is the most effective combination.

  • 53.
    Valdimarsson, T
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Gastroenterology and Hepatology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, GE: gastromed.
    Toss, Göran
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Internal Medicine. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
    Löfman, O
    Linköping University, Faculty of Health Sciences. Linköping University, Department of health and environment. Östergötlands Läns Landsting, FHVC - Folkhälsovetenskapligt centrum, Förebygg.med.
    Ström, Magnus
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Gastroenterology and Hepatology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, GE: gastromed.
    Three years' follow-up of bone density in adult coeliac disease: Significance of secondary hyperparathyroidism2000In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 35, no 3, p. 274-280Article in journal (Refereed)
    Abstract [en]

    Background: The mechanisms of disturbances in bone mineral density (BMD) in coeliac disease are not completely understood. The aim of this prospective study was to investigate the possible significance of secondary hyperparathyroidism (SHPT) with regard to BMD in patients with untreated coeliac disease. Methods: One hundred and five adult patients with untreated coeliac disease were examined for BMD and serum parathyroid hormone (PTH) concentration. BMD in the hip, lumbar spine, and forearm were examined up to 3 years after the introduction of a gluten-free diet. Results: SHPT was found in 27% (28 of 105) of the patients. In patients with SHPT serum levels of 25- hydroxy-vitamin D were lower and those of alkaline phosphatase higher than in patients with normal PTH, but ionized serum calcium did not differ between the two groups. BMD was more severely reduced in patients with SHPT. Although the BMD increment was more rapid in patients with than in those without SPTH, only in the latter group did mean BMD became normal after 1-3 years on a gluten-free diet (GFD). After 3 years on a GFD more than half of the patients with initial SHPT still had low BMD in both the hip and the forearm. Furthermore, in patients with SHPT the intestinal mucosa more often remained atrophic at the 1-year follow-up, despite good compliance with the diet. Conclusions: Low BMD in patients with untreated coeliac disease is often associated with SHPT. After 3 years on a GFD the BMD remains low only in patients with initial SHPT. We therefore suggest that PTH should be measured when the diagnosis of coeliac disease is made, as an indicator of more serious intestinal disorder and complicating bone disease.

  • 54.
    Valdimarsson, Trausti
    et al.
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Gastroenterology and Hepatology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, GE: gastromed.
    Arnqvist, Hans
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Biomedicine and Surgery, Cell biology.
    Toss, Göran
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Internal Medicine. Östergötlands Läns Landsting, MKC-2, GE: endomed.
    Järnerot, G
    IHM Gastroenterologi och hepatologi.
    Nyström, Fredrik
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Medicine and Care, Internal Medicine. Östergötlands Läns Landsting, MKC-2, GE: endomed.
    Ström, Magnus
    Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Gastroenterology and Hepatology. Östergötlands Läns Landsting, MKC - Medicin och kirurgicentrum, GE: gastromed.
    Low circulating insulin-like growth factor I in coeliac disease and its relation to bone mineral density.1999In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 34, no 9, p. 904-908Article in journal (Refereed)
  • 55.
    Vigren, Lina
    et al.
    Lund University.
    Sjöberg, Klas
    Lund University.
    Benoni, Cecilia
    Lund University.
    Tysk, Curt
    Örebro University of Hospital.
    Bohr, Johan
    Örebro University of Hospital.
    Kilander, Anders
    Sahlgrenska University Hospital.
    Larsson, Lasse
    Sahlgrenska University Hospital.
    Ström, Magnus
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Endocrinology and Gastroenterology UHL.
    Hjortswang, Henrik
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Centre, Department of Endocrinology and Gastroenterology UHL.
    Is smoking a risk factor for collagenous colitis?2011In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 46, no 11, p. 1334-1339Article in journal (Refereed)
    Abstract [en]

    Objective. The association between smoking and idiopathic inflammatory bowel disease is well known; smoking seems to have a diverse effect. Crohns disease is associated with smoking, while ulcerative colitis is associated with non-smoking. Data on smoking inmicroscopic colitis of the collagenous type (CC) are lacking. The aim of this investigation was to study smoking habits in CC and to observe whether smoking had any impact on the course of the disease. Materials and methods. 116 patients (92 women) with median age of 62 years (interquartile range 55-73) answered questionnaires covering demographic data, smoking habits and disease activity. As control group we used data from the general population in Sweden retrieved from Statistics Sweden, the central bureau for national socioeconomic information. Results. Of the 116 CC patients, 37% were smokers compared with 17% of controls (p andlt; 0.001, odds ratio (OR) 2.95). In the age group 16-44 years, 75% of CC patients were smokers compared with 15% of controls (p andlt; 0.001, OR 16.54). All CC smoker patients started smoking before the onset of disease. Furthermore, smokers developed the disease earlier than non-smokers - at 42 years of age (median) compared with 56 years in non-smokers (p andlt; 0.003). Although the proportion with active disease did not differ between smokers and nonsmokers, there was a trend indicating that more smokers received active treatment (42% vs. 17%, p = 0.078). Conclusions. Smoking is a risk factor for CC. Smokers develop their disease more than 10 years earlier than non-smokers.

  • 56.
    Vigren, Lina
    et al.
    Lund University, Sweden .
    Tysk, Curt
    Örebro University Hospital, Sweden University of Örebro, Sweden .
    Ström, Magnus
    Linköping University, Department of Clinical and Experimental Medicine, Division of Inflammation Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Gastroentorology.
    Kilander, Anders F.
    Sahlgrens University Hospital, Sweden .
    Hjortswang, Henrik
    Linköping University, Department of Clinical and Experimental Medicine, Division of Inflammation Medicine. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Gastroentorology.
    Bohr, Johan
    Örebro University Hospital, Sweden University of Örebro, Sweden .
    Benoni, Cecilia
    Lund University, Sweden .
    Larson, Lasse
    Sahlgrens University Hospital, Sweden .
    Sjoberg, Klas
    Lund University, Sweden .
    Celiac disease and other autoimmune diseases in patients with collagenous colitis2013In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 48, no 8, p. 944-950Article in journal (Refereed)
    Abstract [en]

    Background and aims. Collagenous colitis (CC) is associated with autoimmune disorders. The aim of the present study was to investigate the relationship between CC and autoimmune disorders in a Swedish multicenter study. Methods. Patients with CC answered questionnaires about demographic data and disease activity. The patients files were scrutinized for information about autoimmune diseases. Results. A total number of 116 CC patients were included; 92 women, 24 men, median age 62 years (IQR 55-73). In total, 30.2% had one or more autoimmune disorder. Most common were celiac disease (CeD; 12.9%) and autoimmune thyroid disease (ATD, 10.3%), but they also had Sjogrens syndrome (3.4%), diabetes mellitus (1.7%) and conditions in skin and joints (6.0%). Patients with associated autoimmune disease had more often nocturnal stools. The majority of the patients with associated CeD or ATD got these diagnoses before the colitis diagnosis. Conclusion. Autoimmune disorders occurred in one-third of these patients, especially CeD. In classic inflammatory bowel disease (IBD), liver disease is described in contrast to CC where no cases occurred. Instead, CeD was prevalent, a condition not reported in classic IBD. Patients with an associated autoimmune disease had more symptoms. Patients with CC and CeD had an earlier onset of their colitis. The majority of the patients with both CC and CeD were smokers. Associated autoimmune disease should be contemplated in the follow-up of these patients.

  • 57.
    Walter, Susanna
    et al.
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
    Münch, Andreas
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Centre for Medicine, Department of Endocrinology and Gastroenterology UHL.
    Ost, A
    Karolinska Institute.
    Ström, Magnus
    Linköping University, Department of Clinical and Experimental Medicine, Gastroenterology and Hepatology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Heart and Medicine Center, Department of Endocrinology and Gastroenterology UHL.
    Anorectal function in patients with collagenous colitis in active and clinically quiescent phase, in comparison with healthy controls2010In: Neurogastroenterology and Motility, ISSN 1350-1925, E-ISSN 1365-2982, Vol. 22, no 5, p. 534-+Article in journal (Refereed)
    Abstract [en]

    Background Collagenous colitis (CC) is characterized by chronic watery diarrhea, a macroscopically normal colonic mucosa but typical microscopic inflammation. Chronic mucosal inflammation of the colon and rectum has earlier been associated with altered visceral sensitivity, but anorectal function has never been reported in cases of CC. Methods Fifteen patients with CC in active phase recorded their symptoms. The severity of inflammation was determined in mucosal biopsies. Anorectal function was assessed and compared with that of 15 healthy volunteers of corresponding age and matched for gender. After 6 weeks of budesonide treatment when the patients were in clinical remission anorectal function was re-assessed. Key Results All patients had inflammation also in rectum. Patients in active phase had, during rectal balloon distension a higher rectal sensory threshold for the feeling of first sensation, compared with controls (P = 0.02). There were no differences in rectal sensory threshold for the feeling of urgency or maximum distension, between patients with CC in active phase and healthy controls. Rectal volume at first sensation was significantly greater in patients than in controls (P = 0.02), but there were no differences at urgency or maximum distension. Twelve of 15 patients completed 6 weeks of budesonide treatment and all went into clinical remission. No differences in anorectal function were measured when patients had active disease, compared with clinical remission. Conclusions andamp; Inferences Collagenous colitis was not associated with rectal hypersensitivity or disturbed anal function despite rectal inflammation. On the contrary, the sensation threshold for light rectal pressure was elevated in patients with active CC.

  • 58.
    Yakymenko, Olena
    et al.
    Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences.
    Schoultz, Ida
    Department of Medical Sciences, Faculty of Health and Medicine, Örebro University, Örebro, Sweden.
    Gullberg, Elisabet
    Region Östergötland, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Surgery in Linköping. Linköping University, Faculty of Medicine and Health Sciences. Linköping University, Department of Clinical and Experimental Medicine.
    Ström, Magnus
    Linköping University, Department of Clinical and Experimental Medicine, Division of Neuro and Inflammation Science. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Heart and Medicine Center, Department of Gastroentorology.
    Almer, Sven
    Department of Medicine, Karolinska Institutet, Stockholm, Sweden / GastroCentrum, Karolinska University Hospital, Stockholm, Sweden.
    Wallon, Conny
    Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Surgery in Linköping.
    Wang, Arthur
    Gastrointestinal Research Group, Cumming School of Medicine, University of Calgary, Calgary, Canada..
    Keita, Åsa
    Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Surgery in Linköping.
    Campbell, Barry J.
    Gastroenterology Research Unit, Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool, UK.
    McKay, Derek M.
    Gastrointestinal Research Group, Cumming School of Medicine, University of Calgary, Calgary, Canada.
    Söderholm, Johan D
    Linköping University, Department of Clinical and Experimental Medicine, Division of Surgery, Orthopedics and Oncology. Linköping University, Faculty of Medicine and Health Sciences. Region Östergötland, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Surgery in Linköping.
    Infliximab restores colonic barrier to adherent-invasive E. coli in Crohn's disease via effects on epithelial lipid rafts2018In: Scandinavian Journal of Gastroenterology, ISSN 0036-5521, E-ISSN 1502-7708, Vol. 53, no 6, p. 677-684Article in journal (Refereed)
    Abstract [en]

    Objective: Infliximab is important in the therapeutic arsenal of Crohn’s disease (CD). However, its effect on mucosal barrier function is not fully understood. Adherent-invasive Escherichia coli (AIEC) are important in CD pathophysiology, but the transmucosal uptake routes are partly unknown. We investigated effects of infliximab on uptake of colon-specific AIEC HM427 across CD colonic mucosa.

    Materials and methods: Endoscopic biopsies from non-inflamed colon of seven patients with CD, before and after two infliximab infusions, and eight non-inflammation controls, were mounted in Ussing chambers. Paracellular permeability (51Cr-EDTA) and transmucosal passage of GFP-expressing HM427 were studied. Mechanisms of HM427 transepithelial transport were investigated in Caco-2 monolayers treated with TNF, in the presence of infliximab and/or endocytosis inhibitors.

    Results: Before infliximab treatment, colonic passage of HM427 [CD: 2475 CFU (450–3000); controls 1163(225–1950)] and 51Cr-EDTA permeability were increased in CD (p < .05), but were restored to control levels by infliximab (CD: 150 (18.8–1069)). In TNF-exposed Caco-2 monolayers HM427 transport and lipid rafts/HM427 co-localization was decreased by infliximab. The lipid raft inhibitor methyl-β-cyclodextrin decreased HM427 transport.

    Conclusion: Infliximab restored the colonic barrier to AIEC in CD; an effect partially mediated by blocking lipid rafts in epithelial cells. This ability likely contributes to infliximab’s clinical efficacy in colonic CD.

12 51 - 58 of 58
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