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Sökning: WFRF:(Befrits Ragnar)

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1.
  • Almer, Sven, 1938-, et al. (författare)
  • Handläggning av svårt skov av ulcerös kolit. In: Löfberg R (ed): Inflammatorisk tarmsjukdom.
  • 2010
  • Ingår i: Läkartidningen. - 0023-7205 .- 1652-7518. ; 106:45, s. 62-75
  • Tidskriftsartikel (refereegranskat)abstract
    • Patienter med svårt skov av ulcerös kolit bör vårdas på sjukhus och handläggas av gastroenterolog och kolorektal kirurg i nära samarbete.Skovets svårighetsgrad kan underskattas, varför noggrann bedömning av inflammationens utbredning och svårighetsgrad enligt validerade kriterier är viktigt.Intravenös behandling med kortikosteroider är en av hörn­stenarna i den akuta behandlingen.Patienter som inte förbättras på denna behandling, bör erbjudas medicinsk »rescue-behandling« eller kolektomi.Infliximab har visats vara en effektiv rescue-behandling och kan minska behovet av kol­ektomi inom de första 3 månaderna och upp till 3 år.
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  • Anedda, Francesca, et al. (författare)
  • Multiple polymorphisms affect expression and function of the neuropeptide S receptor (NPSR1)
  • 2011
  • Ingår i: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 6:12, s. e29523-
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: neuropeptide S (NPS) and its receptor NPSR1 act along the hypothalamic-pituitary-adrenal axis to modulate anxiety, fear responses, nociception and inflammation. The importance of the NPS-NPSR1 signaling pathway is highlighted by the observation that, in humans, NPSR1 polymorphism associates with asthma, inflammatory bowel disease, rheumatoid arthritis, panic disorders, and intermediate phenotypes of functional gastrointestinal disorders. Because of the genetic complexity at the NPSR1 locus, however, true causative variations remain to be identified, together with their specific effects on receptor expression or function. To gain insight into the mechanisms leading to NPSR1 disease-predisposing effects, we performed a thorough functional characterization of all NPSR1 promoter and coding SNPs commonly occurring in Caucasians (minor allele frequency >0.02). Principal Findings: we identified one promoter SNP (rs2530547 [-103]) that significantly affects luciferase expression in gene reporter assays and NPSR1 mRNA levels in human leukocytes. We also detected quantitative differences in NPS-induced genome-wide transcriptional profiles and CRE-dependent luciferase activities associated with three NPSR1 non-synonymous SNPs (rs324981 [Ile107Asn], rs34705969 [Cys197Phe], rs727162 [Arg241Ser]), with a coding variant exhibiting a loss-of-function phenotype (197Phe). Potential mechanistic explanations were sought with molecular modelling and bioinformatics, and a pilot study of 2230 IBD cases and controls provided initial support to the hypothesis that different cis-combinations of these functional SNPs variably affect disease risk. Significance: these findings represent a first step to decipher NPSR1 locus complexity and its impact on several human conditions NPS antagonists have been recently described, and our results are of potential pharmacogenetic relevance.
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4.
  • Bager, Palle, et al. (författare)
  • High burden of iron deficiency and different types of anemia in inflammatory bowel disease outpatients in Scandinavia: A longitudinal 2-year follow-up study
  • 2013
  • Ingår i: Scandinavian Journal of Gastroenterology. - : Informa Healthcare. - 0036-5521 .- 1502-7708. ; 48:11, s. 1286-1293
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. The prevalence of anemia in inflammatory bowel disease (IBD) has been broadly described. The recurrence, type and burden of anemia remain unenlightened. The primary objective was to describe this. The secondary objective was to evaluate the implementation of European guidelines. Materials and methods. This longitudinal follow-up study included 300 IBD outpatients from six centers in Scandinavia. Patients were enrolled in a research cohort, in which each center included 5% of their IBD cohort. The study was prospectively planned, while data were retrospectively collected. The burden of anemia was calculated as number of months with anemia. A Markov model was used to calculate the probabilities of transitioning between stages. The European guidelines were used as the standard for anemia management. Results. Anemia affected andgt; 50% of IBD outpatients during the 2-year observation period. Totally, 20% of the total observation time was spent in anemia. Over the 7200 months of observation, anemia was found in 1410 months. The most frequent type was combined anemia (63%). Combined anemia covers both anemia of chronic disease (ACD) and iron-deficiency anemia (IDA). Pure ACD was present in 21% of burden time, while pure IDA was present in 16% of burden time. The European guidelines have mainly been implemented. Conclusion. Anemia affected a majority of the IBD outpatients. One in five months, the patients were anemic. Anemia related to inflammation dominated the different types of anemia. Pure IDA was found in for 16%. These findings, despite a fair implementation of guidelines.
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5.
  • Bager, Palle, et al. (författare)
  • The prevalence of anemia and iron deficiency in IBD outpatients in Scandinavia
  • 2011
  • Ingår i: SCANDINAVIAN JOURNAL OF GASTROENTEROLOGY. - : Informa Healthcare. - 0036-5521 .- 1502-7708. ; 46:3, s. 304-309
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. To evaluate the prevalence of anemia and iron deficiency (ID) among patients with inflammatory bowel disease (IBD) in the Scandinavian countries. Material and methods. A cross-sectional study including 429 IBD patients from six centers in Denmark, Norway and Sweden. Patients were screened for anemia and ID. Each center included similar to 5% of their IBD cohort. Patients were consecutively seen in the outpatient clinic, regardless of disease activity and whether the visits were scheduled or not. Results. The overall prevalence of anemia was 19% (95% CI: 16--23%). The prevalence was higher among patients with Crohns disease than among patients with ulcerative colitis (p = 0.01). The etiology of anemia was as follows: iron deficiency anemia (20%), anemia of chronic disease (12%), and both conditions (68%). Less than 5% had folate acid or vitamin B12 deficiency. ID was found in 35% (CI: 31-40%) of the patients. Conclusions. Anemia was present in every fifth IBD patient and ID in every third IBD patient.
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  • Befrits, Ragnar, et al. (författare)
  • Anemia and iron deficiency in inflammatory bowel disease: an open, prospective, observational study on diagnosis, treatment with ferric carboxymaltose and quality of life
  • 2013
  • Ingår i: Scandinavian Journal of Gastroenterology. - : Informa Healthcare. - 0036-5521 .- 1502-7708. ; 48:9, s. 1027-1032
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective. Iron deficiency and anemia are being increasingly recognized as a complication of inflammatory bowel disease (IBD). The aim of this study was to observe, in a non-interventional way, how Swedish gastroenterologists adhere to guidelines in IBD outpatients treated with intravenous ferric carboxymaltose (FCM), and the result of treatment. Material and methods. Altogether 394 IBD patients (Crohns disease (CD) 60%, ulcerative colitis (UC) 40%) from 14 centers were included. Group A (n = 216) was observed from November 2008 and group B (n = 178) from March 2010. Time of observation ranged from 12 to 29 months. Results. S-Ferritin (mmol/l) and transferrin saturation (T-Sat; %) were recorded at baseline in 62% and 50% in group A. Median values for Hb, ferritin and T-Sat at baseline were 111 g/l, 10 mu mol/l and 10%, respectively, and 134 g/l, 121 mmol/l and 20% after iron treatment (p andlt; 0.001 for all three parameters). Similar results were found in group B. Approximately three-quarters of all patients had only one iron infusion during the study period. Median time to reinfusion was 6 (1-25) months. Only previously described infusion reactions occurred in 27 (7%) patients. Conclusions. Adherence to European guidelines was rather poor and needs to be improved. The effect on iron parameters of intravenous FCM was significant, and resulted in a ferritin level that indicates an effect on the iron stores. The effect was mostly sustained for a year since only one-quarter of the patients were given repeated iron infusions. No unforeseen safety concerns emerged during the observation period.
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9.
  • Benno, Peter, et al. (författare)
  • From IBS to DBS : The Dysbiotic Bowel Syndrome
  • 2016
  • Ingår i: JOURNAL OF INVESTIGATIVE MEDICINE HIGH IMPACT CASE REPORTS. - : SAGE PUBLICATIONS LTD. - 2324-7096. ; 4:2
  • Tidskriftsartikel (refereegranskat)abstract
    • Irritable bowel syndrome is a chronic gastrointestinal disorder characterized by abdominal pain and altered bowel habits in the absence of organic disease. We present 2 cases where diarrhea-predominant irritable bowel syndrome occurred in association with earlier intestinal infection or antibiotic treatment. Both were successfully treated with instillation of an anaerobic cultivated human intestinal microbiota. Thereafter, they were symptom free for at least 12 months. We now introduce the term dysbiotic bowel syndrome covering cases where a disturbed intestinal microbiota is assumed to be present. We recommend that restoration of the dysbiotic gut microbiota should be first-line treatment in these conditions.
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10.
  • Engström, Johanna, et al. (författare)
  • Comparison of fecal calprotectin and serum C-reactive protein in early prediction of outcome to infliximab induction therapy
  • 2019
  • Ingår i: Scandinavian Journal of Gastroenterology. - : TAYLOR & FRANCIS LTD. - 0036-5521 .- 1502-7708. ; 54:9, s. 1081-1088
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Fecal calprotectin (FC) and serum C-reactive protein (CRP) are biomarkers of disease activity in Crohn's disease (CD) and ulcerative colitis (UC). We assessed FC, CRP, Harvey-Bradshaw index (HBi), partial Mayo Clinic Scoring (pMCS) and a cytokine panel during infliximab induction to predict therapy outcome.Methods: FC, CRP and clinical indices were evaluated in 123 (76 CD, 47 UC) patients before infliximab induction and after 12 weeks. Responders were monitored 48 weeks for an 'incident' (dosage increase, shortened dosage interval, surgery). Cutoff values for FC and CRP were obtained using receiver-operating characteristics (ROC). Disease progression was analyzed with Kaplan-Meier survivals, log-rank test and logistic regression for combined biomarkers. Cytokines were analyzed with Luminex multiplexing system.Results: Following infliximab, FC and CRP declined (p < .0001) along with HBi for CD and pMCS for UC. Simultaneously, IL-6 and TNF-alpha decreased, while IL-10 increased. Optimal FC ROC cutoff was 221 mu g/g (sensitivity 66%, specificity 67%, AUC 0.71) and CRP ROC cutoff 2.1 mg/L (sensitivity 54%, specificity 60%, AUC 0.58). In CD, FC > 221 mu g/g (p < .0001), but not CRP > 2.1 mg/L predicted an 'incident'. However, combined FC and CRP also predicted an 'incident' (p < .042). In UC, both FC > 221 mu g/g (p < .0005) and CRP > 2.1 mg/L (p = .0334) predicted 'incident', as did combined biomarkers (p < .005).Conclusions: Clinical disease activity is reduced by treatment with infliximab. In CD, persistently high FC, but not CRP, predict a treatment 'incident', whereas in UC both high FC and high CRP predict 'incident'. Combined FC and CRP values also predict an 'incident'.
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