Publications by authors named "Karling P"

Article Synopsis
  • The study aimed to find protein signatures in blood that could help identify individuals at high risk for inflammatory bowel disease (IBD), specifically Crohn's disease (CD) and ulcerative colitis.
  • Researchers analyzed blood samples from a large population, utilizing machine-learning methods to identify and validate these protein signatures across multiple cohorts.
  • A specific combination of 29 proteins was effective in differentiating preclinical CD cases from controls, achieving a high accuracy, while the prediction for ulcerative colitis was less robust but still significant.
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Background: Treatments and strategies for inflammatory bowel disease (IBD) have gradually evolved in the 2000s.

Objectives: We investigated whether the prescription of corticosteroids (prednisolone and budesonide) in patients with IBD in the first 5 years after diagnosis changed in patients diagnosed between 2006 and 2018.

Design: Retrospective observational study.

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Background And Aim: We aimed to investigate whether individuals with low pepsinogen I levels differed from those with normal pepsinogen I levels in terms of proton pump inhibitors (PPIs) use, referral to gastroscopy, and findings on gastroscopy.

Methods: Serum pepsinogen I was measured in 518 persons (mean age 51.6, SD 8.

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Introduction: The clinical consequences for patients with inflammatory bowel disease (IBD) who stop treatment owing to side effects have not been fully investigated.

Methods: This retrospective observational study aimed to compare patients who discontinued thiopurine treatment due to side effects with those who tolerated thiopurine treatment in the use of other IBD drugs, surgery, and fecal calprotectin values in the first 5 years after the start of thiopurine treatment.

Results: The proportion of patients with IBD who initiated thiopurine treatment at our clinic was 44% (32% ulcerative colitis and 64% Crohn's disease) and 31% ( = 94) of those patients had to stop thiopurine treatment within 5 years due to side effects.

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Background: Smoking and the use of non-steroidal anti-inflammatory drugs (NSAIDs) acetylsalicylic acid (ASA), proton pump inhibitors (PPIs), serotonin reuptake inhibitors (SSRIs), and statins have been associated with microscopic colitis (MC).

Objectives: We investigated whether these factors were associated with repeated budesonide treatments in patients diagnosed with MC.

Design: Retrospective observational study.

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Background: Thiopurines are commonly used to treat inflammatory bowel disease but withdrawal due to side effects are common. Thioguanine has been suggested to be better tolerated than conventional thiopurines.

Objectives: We studied drug-survival of low dose of thioguanine in real-life clinical practice in comparison to conventional thiopurines.

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Background: Nutri-score is now widely available in food packages in Europe.

Aim: To study the overall nutritional quality of the diet in relation to risks of Crohn's disease (CD) and ulcerative colitis (UC), in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort METHODS: We collected dietary data at baseline from validated food frequency questionnaires. We used a dietary index based on the UK Food Standards Agency modified nutrient profiling system (FSAm-NPS-DI) underlying the Nutri-Score label, to measure the nutritional quality of the diet.

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Purpose: Surveillance for hepatocellular carcinoma (HCC) is recommended in at-risk patients, but its effectiveness in Western populations has been questioned. The purpose was to evaluate the effect of surveillance in patients with HCC in a Northern European setting.

Patients And Methods: Data on patients diagnosed with HCC between 2009 and 2019 were collected from the nationwide Swedish National Registry for Tumors of the Liver and Bile Ducts (SweLiv).

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In late 2010, an outbreak of Cryptosporidium hominis affected 27,000 inhabitants (45%) of Östersund, Sweden. Previous research shows that abdomen and joint symptoms commonly persist up to 5 years post-infection. It is unknown whether Cryptosporidium is associated with sequelae for a longer duration, how persisting symptoms present over time, and whether sequelae are associated with prolonged infection.

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This study aimed to investigate the significance of Hill classification to predict esophagitis, Barrett's esophagus, gastroesophageal reflux disease (GERD) symptomatology, and future prescriptions of proton pump inhibitors in clinical practice. A total of 922 patients (546 women and 376 men; mean age 54.3 [SD 18.

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Aim Of The Study: Oesophageal and gastric varices are well-known causes of morbidity and mortality in patients with liver cirrhosis. The aim of this retrospective observational study was to analyse clinical characteristics and outcomes for patients with oesophageal and gastric varices at Norrland's University Hospital, Umeå, Sweden.

Material And Methods: Data from medical records were collected retrospectively from 246 patients with oesophageal and gastric varices between 2006 and 2019.

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Background: The pathogenic processes in the preclinical phase of inflammatory bowel disease (IBD) are mainly unknown.

Aims: To study typical antibodies for IBD in the preclinical phase in a cohort of Northern Sweden.

Methods: Antibodies typical for IBD (ASCA, pANCA, lactoferrin-ANCA, antibodies to goblet cells, and pancreas antigen) were analyzed in 123 subjects with preclinical ulcerative colitis (UC), 54 subjects with preclinical Crohn's disease (CD) and in 390 sex- and age-matched controls.

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Objectives: In 2010, 27,000 inhabitants (45% of the population) of Östersund, Sweden, contracted clinical cryptosporidiosis after drinking water contaminated with . After the outbreak, local physicians perceived that the incidence of inflammatory bowel disease (IBD), including ulcerative colitis (UC), Crohn's disease (CD), and IBD-unclassified, and microscopic colitis (MC) increased. This study assessed whether this perception was correct.

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Background: Serious infections have been observed in patients with inflammatory bowel disease (IBD) on anti-TNF use-but to what extent these infections are due to anti-TNF or the disease activity per se is hard to disentangle. We aimed to describe how the rates of serious infections change over time both before and after starting anti-TNF in IBD.

Methods: Inflammatory bowel disease patients naïve to anti-TNF treatment were identified at 5 centers participating in the Swedish IBD Quality Register, and their medical records examined in detail.

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Background: Faecal calprotectin (FC) is a potential biomarker for colorectal cancer (CRC) screening. There is uncertainty if tumor characteristics are associated with FC levels. We investigated how tumor stage and tumor localization influence the extent of FC levels in patients with CRC in clinical practice.

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Background: Corticosteroids, immunomodulators (IM) and tumour necrosis factor antagonists (anti-TNF) are commonly used in the treatment of inflammatory bowel disease (IBD) but they also supress the defence against infectious disease. The aim of this study was to analyse the incidence of infectious events in patients with IBD and the association to concomitant medical therapy.

Methods: We performed a retrospective medical chart review of patients with IBD aged 18-65 years included in the Swedish Registry of Inflammatory Bowel Disease in the catchment area of Umeå University Hospital, Sweden.

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Background And Aims: The SARS-CoV-2 pandemic abruptly switched the healthcare service for patients with inflammatory bowel disease (IBD) towards a telemedicine dominated approach. The aim of this study was to investigate the impact of this switch on monitoring of patients and on disease activity.

Material: The pre-pandemic year included 868 patients and the first year of the pandemic included 891 patients.

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Background: Our objective was to determine if patients who later develop inflammatory bowel disease (IBD) show signs of increased inflammatory activity in plasma measured with high sensitivity C-reactive protein (CRP), calprotectin, and albumin before the clinical onset of IBD.

Methods: We identified 96 subjects who later developed IBD (70 ulcerative colitis [UC] and 26 Crohn's disease [CD]). High sensitivity CRP, calprotectin, and albumin were analyzed in frozen plasma, donated from cases and sex-age matched controls 1-15 years before diagnosis.

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Background & Aims: Preclinical ulcerative colitis is poorly defined. We aimed to characterize the preclinical systemic inflammation in ulcerative colitis, using a comprehensive set of proteins.

Methods: We obtained plasma samples biobanked from individuals who developed ulcerative colitis later in life (n = 72) and matched healthy controls (n = 140) within a population-based screening cohort.

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Article Synopsis
  • The study aimed to evaluate the long-term effectiveness and discontinuation rates of first-line anti-TNF treatments in patients with Crohn's disease and ulcerative colitis, focusing on infliximab and adalimumab.
  • Results showed that infliximab had a higher discontinuation rate due to lack of response compared to adalimumab in Crohn's disease, while both medications had similar rates in ulcerative colitis.
  • Factors such as lower CRP levels after three months and the use of immunomodulators were linked to reduced discontinuation rates, highlighting the importance of personalizing treatment plans based on individual patient characteristics.
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Introduction: Faecal calprotectin (FC) is commonly used as a diagnostic tool for patients with gastrointestinal (GI) symptoms. However, there is uncertainty in daily clinical practice how to interpret an elevated FC in patients with a normal colonoscopy. We investigated if patients with a normal colonoscopy but with an elevated FC more often were diagnosed with a GI disease in a 3-year follow-up period.

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Objectives: Opioids are commonly prescribed post-surgery. We investigated the proportion of patients who were prescribed any opioids 6-12 months after two common surgeries - laparoscopic cholecystectomy and gastric by-pass (GBP) surgery. A secondary aim was to examine risk factors prior to surgery associated with the prescription of any opioids after surgery.

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Objectives: Self-monitoring of inflammatory bowel disease (IBD) with the assistant of telemedicine and home-based fecal calprotectin (FC) tests is evolving in the management of IBD. We performed a randomized controlled trial to investigate the compliance and effects of the model IBD-Home in patients with IBD.

Materials And Methods: Patients were randomized to IBD-Home + standard care ( = 84) or standard care alone ( = 74).

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Article Synopsis
  • People with microscopic colitis (MC) often have more symptoms similar to irritable bowel syndrome (IBS) compared to people without MC.
  • In a study, researchers compared 57 MC patients to 138 control subjects and found that MC patients reported more abdominal pain, bloating, and diarrhea.
  • Although MC patients experienced more anxiety and used certain medications more, their gut health markers didn't directly relate to their IBS-like symptoms.
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