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Sökning: AMNE:(MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Gastroenterologi) > Örebro universitet

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1.
  • Elfström, Peter, 1974-, et al. (författare)
  • Hematopoietic cancer including lymphoma in celiac disease according to Marsh criteria 0-3
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Background: Celiac disease (CD) is associated with an increased risk of lymphoma, but it is unknown if borderline mucosal damage and latent CD are risk factors for lymphoma.Methods: We examined the risk of hematopoietic cancer in a nationwide population–based cohort of 28,800 individuals with biopsy-verified CD (villous atrophy, Marsh 3), 12,663 individuals with small intestinal inflammation (Marsh 1+2), and 3,551 with latent CD (positive antiendomysial, tissue transglutaminase or antigliadin test but normal mucosa on biopsy). The study participants were identified through all pathology departments (n=28) in Sweden and were biopsied in 1969-2006 (median: 1998). Cox regression estimated the hazard ratio (HR) for hematopoietic malignancies.Results: While biopsy-verified CD and intestinal inflammation were both statistically significantly associated with lymphoma (CD: HR = 3.18; 95% CI = 2.63-3.83; inflammation: 1.66; 1.28-2.17), latent CD was not (1.04; 0.44-2.43). CD was associated with both non-Hodgkin’s (NHL) and Hodgkin’s lymphoma (HL) (4.81; 3.81-6.07 and 4.39; 2.59-7.45 respectively). Risk estimates for NHL and HL were lower in inflammation (1.65; 1.15-2.38 and 1.48; 0.60-3.62 respectively) and latent CD (1.79; 0.74-4.34 and 1.08; 0.13-9.00 respectively). No increased risk of lymphoma was seen in children with a small intestinal biopsy. This study found no association between leukemia and small intestinal pathology.Conclusion: CD is associated with an increased risk of lymphoma. This risk increase was also seen in individuals with small intestinal inflammation. Latent CD is not associated with lymphoma of any kind, and positive CD serology alone cannot be used to predict future risk of lymphoma.
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2.
  • Ludvigsson, Jonas F., et al. (författare)
  • Effect of HLA DQ2, dietary exposure and coeliac disease on the development of antibody response to gliadin in children
  • 2006
  • Ingår i: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 0036-5521 .- 1502-7708. ; 41:8, s. 919-928
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To study the effect of HLA DQ2, dietary history and development of coeliac disease (CD) on the induction of antibody response to wheat gliadin and cow's milk, beta-lactoglobulin between 1 and 2.5 years of age in children who developed CD and in healthy children. MATERIAL AND METHODS: Infants participating in a birth cohort study (the ABIS study) in Sweden were studied. Thirty-nine children developed CD (=cases), confirmed through biopsy, during follow-up until 2.5-5 years of age. A total of 181 healthy control children were matched for duration of exclusive breast-feeding, birth-weight, gender, maternal smoking and season of birth. IgG and IgA antigliadin and anti-beta-lactoglobulin antibodies were measured using enzyme immunoassay (EIA). The effects of HLA-risk genotypes, DQ2 and DQ8, on CD were also considered. RESULTS: Children who developed CD had higher IgG and IgA antigliadin and anti-beta-lactoglobulin antibody levels at 1 year of age than controls (all comparisons: p<0.001). Similar differences were seen between cases with as yet undiagnosed CD by 1 year of age and controls, and also when cases were compared with HLA-matched controls. Higher levels of IgG and IgA antibodies to beta-lactoglobulin (p=0.003; p=0.001), but not to gliadin, were found in treated cases versus controls at 2.5 years of age. HLA-DQ2-positive healthy children had lower levels of IgG and IgA antigliadin antibodies than HLA-DQ2 negative controls at 1 year of age (p=0.004; p=0.012). CONCLUSIONS: Enhanced humoral response emerging not only to gliadin, but also to other food antigens seems to be primarily associated with CD. Poor induction of antibody response to wheat gliadin in healthy children with the HLA-DQ2 risk molecule could at least partly explain the genetic predisposition to gluten intolerance and CD.
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3.
  • Elfström, Peter, 1974-, et al. (författare)
  • Risk of primary adrenal insufficiency in patients with celiac disease
  • 2007
  • Ingår i: Journal of Clinical Endocrinology and Metabolism. - Chevy Chase, Md. : Endocrine Society. - 0021-972X .- 1945-7197. ; 92:9, s. 3595-3598
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: Earlier research has suggested a positive association between Addison’s disease (AD) and celiac disease (CD).Wehave here investigated the risk of AD in individuals with CD from a general population cohort.Methods: Through the Swedish national registers we identified 14,366 individuals with a diagnosis of CD (1964–2003) and 70,095 reference individuals matched for age, sex, calendar year, and county of residence. We used Cox regression to estimate hazard ratios (HRs) for subsequent AD. Analyses were restricted to individuals with more than 1 yr of follow-up and without AD prior to study entry or within 1 yr after study entry. Conditional logistic regression estimated the odds ratio for CD in individuals with prior AD.Results: There was a statistically significantly positive association between CD and subsequent AD [HR _ 11.4; 95% confidence interval (CI) _ 4.4 –29.6]. This risk increase was seen in both children and adults and did not change with adjustment for diabetes mellitus or socioeconomic status. When we restricted reference individuals to inpatients, the adjusted HR for AD was 4.6 (95% CI _ 1.9 –11.4). Individuals with prior AD were at increased risk of CD (odds ratio _ 8.6; 95% CI _ 3.4 –21.8).Conclusions: This study found a highly increased risk of AD in individuals with CD. This relationship was independent of temporal sequence. We therefore recommend that individuals with AD should be screened for CD. We also suggest an increased awareness of AD in individuals with CD.
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4.
  • Elfström, Peter, 1974-, et al. (författare)
  • Cardiomyopathy, pericarditis and myocarditis in a population-based cohort of inpatients with coeliac disease
  • 2007
  • Ingår i: Journal of Internal Medicine. - Oxford : Blackwell Publishing. - 0954-6820 .- 1365-2796. ; 262:5, s. 545-554
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: We investigated the risk of myocarditis, cardiomyopathy, and pericarditis in patients with celiac disease (CD) from a general population cohort.Subjects and methods: Through the Swedish national registers we identified 9363 children and 4969 adults with a diagnosis of CD (1964–2003). These individuals were matched with upto five reference individuals for age, sex, calendar year and county (n = 69 851). Cox regression estimated hazard ratios (HRs) for later heart disease. Main outcome measures: Myocarditis, cardiomyopathy (any or dilated), and pericarditis defined according torelevant international classification of disease codes in the Swedish national inpatient register.Results: Celiac disease diagnosed in childhood was not associated with later myocarditis (HR = 0.2; 95% CI = 0.0–1.5), cardiomyopathy of any type (HR = 0.8; 95% CI = 0.2–3.7), or pericarditis (HR = 0.4; 95% CI = 0.1–1.9). Restricting our analyses to adulthood CD and heart disease diagnosed from 1987 and onwards in departments of cardiology ⁄ internal medicine, we found no association between CD and later myocarditis (HR = 2.1; 95% CI = 0.4–11.7), dilated cardiomyopathy (HR = 1.7; 95% CI = 0.4– 6.5) or pericarditis (HR = 1.5; 95% CI = 0.5–4.0).Conclusion: This study found no association between CD, later myocarditis, cardiomyopathy or pericarditis
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5.
  • Bergquist, Annika, et al. (författare)
  • Increased risk of primary sclerosing cholangitis and ulcerative colitis in first-degree relatives of patients with primary sclerosing cholangitis
  • 2008
  • Ingår i: Clinical Gastroenterology and Hepatology. - New York : Elsevier. - 1542-3565 .- 1542-7714. ; 6:8, s. 939-943
  • Tidskriftsartikel (refereegranskat)abstract
    • Background & Aims: The importance of genetic factors for the development of primary sclerosing cholangitis (PSC) is incompletely understood. This study assessed the risk of PSC and inflammatory bowel disease (IBD) among first-degree relatives of patients with PSC, compared with the first-degree relatives of a cohort without PSC. Methods: Subjects from the national Swedish cohort of PSC patients (n = 678) were matched for date of birth, sex, and region to up to 10 subjects without a diagnosis of PSC (n = 6347). Linkage through general population registers identified first-degree relatives of subjects in both the PSC and comparison cohorts (n = 34,092). Diagnoses among first-degree relatives were identified by using the Inpatient Register. Results: The risk of cholangitis was statistically significantly increased in offspring, siblings, and parents of the PSC patient cohort, compared with relatives of the comparison cohort, with the hazard ratios and 95% confidence intervals, 11.5 (1.6–84.4), 11.1 (3.3–37.8), and 2.3 (0.9–6.1), respectively. The hazard ratios for ulcerative colitis (UC) among first-degree relatives of all PSC patients was 3.3 (2.3–4.9) and for Crohn's disease 1.4 (0.8–2.5). The risk of UC for relatives of PSC patients without IBD was also increased, 7.4 (2.9–18.9). Conclusions: First-degree relatives of patients with PSC run an increased risk of PSC, indicating the importance of genetic factors in the etiology of PSC. First-degree relatives of PSC patients without IBD are also at an increased risk of UC, which might indicate shared genetic susceptibility factors for PSC and UC. 
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6.
  • Bergquist, Annika, et al. (författare)
  • Perinatal events and the risk of developing primary sclerosing cholangitis
  • 2006
  • Ingår i: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327 .- 2219-2840. ; 12:37, s. 6037-6040
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To investigate whether perinatal events, intrauterine or postpartum, are associated with the development of primary sclerosing cholangitis (PSC) later in life.METHODS: Birth records from 97 patients with adult PSC in Sweden were reviewed. Information on perinatal events including medications and complications during pregnancy, gestation length, birth weight and length were collected. Two control children of the same sex were selected for each subject. Conditional multiple logistic regression was used to assess associations of the perinatal measures with development of PSC.RESULTS: No significant associations were found between gestational age, birth length, breastfeeding, and the majority of medical complications including infections or medication during pregnancy for the mothers or postpartum for the children. Vaginal bleeding and peripheral oedema showed associations with PSC, with matched odds ratios of 5.70 (95% CI, 1.13-28.83) and 2.28 (95% CI, 1.04-5.03), respectively. CONCLUSION: The associations of vaginal bleeding and oedema with subsequent PSC cannot readily be explained, so our findings do not strongly support the hypothesis of a significant role of perinatal events as a risk for the development of PSC later in life.
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9.
  • van Ampting, Marleen T. J., et al. (författare)
  • Intestinal barrier function in response to abundant or depleted mucosal glutathione in Salmonella-infected rats
  • 2009
  • Ingår i: BMC Physiology. - London : BioMed Central. - 1472-6793. ; 9, s. 6-
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Glutathione, the main antioxidant of intestinal epithelial cells, is suggested to play an important role in gut barrier function and prevention of inflammation-related oxidative damage as induced by acute bacterial infection. Most studies on intestinal glutathione focus on oxidative stress reduction without considering functional disease outcome. Our aim was to determine whether depletion or maintenance of intestinal glutathione changes susceptibility of rats to Salmonella infection and associated inflammation.Rats were fed a control diet or the same diet supplemented with buthionine sulfoximine (BSO; glutathione depletion) or cystine (glutathione maintenance). Inert chromium ethylenediamine-tetraacetic acid (CrEDTA) was added to the diets to quantify intestinal permeability. At day 4 after oral gavage with Salmonella enteritidis (or saline for non-infected controls), Salmonella translocation was determined by culturing extra-intestinal organs. Liver and ileal mucosa were collected for analyses of glutathione, inflammation markers and oxidative damage. Faeces was collected to quantify diarrhoea. RESULTS: Glutathione depletion aggravated ileal inflammation after infection as indicated by increased levels of mucosal myeloperoxidase and interleukin-1beta. Remarkably, intestinal permeability and Salmonella translocation were not increased. Cystine supplementation maintained glutathione in the intestinal mucosa but inflammation and oxidative damage were not diminished. Nevertheless, cystine reduced intestinal permeability and Salmonella translocation. CONCLUSION: Despite increased infection-induced mucosal inflammation upon glutathione depletion, this tripeptide does not play a role in intestinal permeability, bacterial translocation and diarrhoea. On the other hand, cystine enhances gut barrier function by a mechanism unlikely to be related to glutathione.
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10.
  • van Baarlen, Peter, et al. (författare)
  • Differential NF-κB pathways induction by Lactobacillus plantarum in the duodenum of healthy humans correlating with immune tolerance
  • 2009
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - Washington, DC : National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 106:7, s. 2371-2376
  • Tidskriftsartikel (refereegranskat)abstract
    • How do we acquire immune tolerance against food microorganisms and commensal bacteria that constitute the intestinal microbiota? We investigated this by stimulating the immune system of adults with commensal Lactobacillus plantarum bacteria. We studied the in vivo human responses to L. plantarum in a randomized double-blind placebo-controlled cross-over study. Healthy adults ingested preparations of living and heat-killed L. plantarum bacteria. Biopsies were taken from the intestinal duodenal mucosa and altered expression profiles were analyzed using whole-genome microarrays and by biological pathway reconstructions. Expression profiles of human mucosa displayed striking differences in modulation of NF-kappaB-dependent pathways, notably after consumption of living L. plantarum bacteria in different growth phases. Our in vivo study identified mucosal gene expression patterns and cellular pathways that correlated with the establishment of immune tolerance in healthy adults.
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