Christina Casèn

ORCID: 0000-0002-7632-8251
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About
Contact & Profiles
Research Areas
  • Gut microbiota and health
  • Gastrointestinal motility and disorders
  • Clostridium difficile and Clostridium perfringens research
  • Inflammatory Bowel Disease
  • Microscopic Colitis
  • Helicobacter pylori-related gastroenterology studies
  • Epigenetics and DNA Methylation
  • IL-33, ST2, and ILC Pathways
  • Nutritional Studies and Diet
  • Complementary and Alternative Medicine Studies
  • Genetic Syndromes and Imprinting
  • Digestive system and related health
  • Effects of Radiation Exposure
  • Probiotics and Fermented Foods
  • Tuberculosis Research and Epidemiology
  • Therapeutic Uses of Natural Elements
  • Neutropenia and Cancer Infections
  • Colorectal Cancer Screening and Detection
  • Diverticular Disease and Complications
  • Immune responses and vaccinations
  • Inflammasome and immune disorders
  • Medical and Biological Ozone Research

Genetic Analysis (Norway)
2015-2024

Summary Background Dysbiosis is associated with many diseases, including irritable bowel syndrome ( IBS ), inflammatory diseases IBD obesity and diabetes. Potential clinical impact of imbalance in the intestinal microbiota suggests need for new standardised diagnostic methods to facilitate microbiome profiling. Aim To develop validate a novel test using faecal samples profile identify characterise dysbiosis. Methods Fifty‐four DNA probes targeting ≥300 bacteria on different taxonomic levels...

10.1111/apt.13236 article EN cc-by-nc-nd Alimentary Pharmacology & Therapeutics 2015-05-14
Nicholas T. Ventham Nicholas A. Kennedy Alex Adams Rahul Kalla Simon Heath and 95 more Katherine O'Leary HE Drummond Gordan Lauc Harry Campbell Dermot McGovern Vito Annese Vlatka Zoldoš Iain K. Permberton Manfred Wuhrer Daniel Kolarich Daryl L. Fernandes Evropi Theorodorou Victoria Merrick Daniel I. R. Spencer Richard A. Gardner Ray Doran Archana Shubhakar Ray Boyapati Igor Rudan Paolo Lionetti Irena Trbojević‐Akmačić Jasminka Krištić Frano Vučković Jerko Štambuk Mislav Novokmet Maja Pučić‐Baković Olga Gornik Angelo Andriulli Laura Cantoro G.C. Sturniolo Gionata Fiorino Natalia Manetti Anna Latiano Anna Kohn R. D’Incà Silvio Danese Ian Arnott Colin Noble Charlie W. Lees Alan G. Shand Gwo‐Tzer Ho Malcolm G. Dunlop Lee Murphy Jude Gibson Louise Evenden Nicola Wrobel T. L. Gilchrist Angie Fawkes Guinevere S. M. Lageveen‐Kammeijer Florent Clerc Noortje de Haan Aleksandar Vojta Ivana Samaržija Dora Markulin Marija Klasić Paula Dobrinić Yurii S. Aulchenko Tim van den Heuve Daisy Jonkers Marieke Pierik Simen Vatn Petr Ricanek Jørgen Jahnsen Panpan You Janne Sølvernes Anna B. Frengen Tone M Tannæs Aina Elisabeth Fossum Moen Fredrik A. Dahl Jonas Christoffer Lindstrøm Gunn S. Ekeland Trond Espen Detlie Åsa V. Keita Johan D. Söderholm Henrik Hjortswang Jonas Halfvarson Daniel Bergemalm Fernando Gomollón Mauro D’Amato Leif Törkvist Fredrik Hjelm Mats Gullberg Niklas Nordberg Anette Ocklind Erik Pettersson Daniel Ekman Mikael Sundell Eddie Modig Anne- Clémence Veillard Renaud Schoemans Dominique Poncelet Céline Sabatel Marta Gut Mónica Bayés Christina Casèn

Abstract Epigenetic alterations may provide important insights into gene-environment interaction in inflammatory bowel disease (IBD). Here we observe epigenome-wide DNA methylation differences 240 newly-diagnosed IBD cases and 190 controls. These include 439 differentially methylated positions (DMPs) 5 regions (DMRs), which study detail using whole genome bisulphite sequencing. We replicate the top DMP ( RPS6KA2 ) DMRs VMP1, ITGB2 TXK an independent cohort. Using paired genetic epigenetic...

10.1038/ncomms13507 article EN cc-by Nature Communications 2016-11-25

Preclinical ulcerative colitis is poorly defined. We aimed to characterize the preclinical systemic inflammation in colitis, using a comprehensive set of proteins.We obtained plasma samples biobanked from individuals who developed later life (n = 72) and matched healthy controls 140) within population-based screening cohort. measured 92 proteins related proximity extension assay. The biologic relevance these findings was validated an inception cohort patients with 101) 50). To examine...

10.1053/j.gastro.2021.07.026 article EN cc-by Gastroenterology 2021-07-21

Background & AimsThe long-term efficacy and possible adverse events of fecal microbiota transplantation (FMT) for irritable bowel syndrome (IBS) are unknown. This study performed a 3-year follow-up the patients in our previous clinical trial to clarify these aspects.MethodsThis included 125 (104 females, 21 males): 38 placebo group, 42 who received 30 g donor feces, 45 60 feces. Feces was administered duodenum. The provided sample completed 5 questionnaires at baseline 2 3 years after FMT....

10.1053/j.gastro.2022.06.020 article EN cc-by Gastroenterology 2022-06-14

Imbalance in the microbiota, dysbiosis, has been identified inflammatory bowel disease (IBD). We explored fecal microbiota pediatric patients with treatment-naïve IBD, non-IBD gastrointestinal symptoms and healthy children, its relation to IBD subgroups, treatment outcomes.Fecal samples were collected from 235 children below 18 years of age. Eighty had Crohn's (CD), 27 ulcerative colitis (UC), 3 unclassified, 50 symptomatic patients, 75 healthy. The bacterial abundance 54 predefined DNA...

10.2147/ceg.s186235 article EN cc-by-nc Clinical and Experimental Gastroenterology 2019-01-01

Abstract Aim To assess the pathobiological and translational importance of whole-blood transcriptomic analysis in inflammatory bowel disease [IBD]. Methods We analysed expression profiles from paired-end sequencing a discovery cohort 590 Europeans recruited across six countries IBD Character initiative (newly diagnosed patients with Crohn’s [CD; n = 156], ulcerative colitis [UC; 167], controls [n 267]), exploring differential [DESeq2], co-expression networks [WGCNA], transcription factor...

10.1093/ecco-jcc/jjac033 article EN cc-by-nc Journal of Crohn s and Colitis 2022-02-23

Abstract Background Epigenetic alterations may provide valuable insights into gene–environment interactions in the pathogenesis of inflammatory bowel disease [IBD]. Methods Genome-wide methylation was measured from peripheral blood using Illumina 450k platform a case-control study an inception cohort (295 controls, 154 Crohn’s [CD], 161 ulcerative colitis [UC], 28 IBD unclassified [IBD-U)] with covariates age, sex and cell counts, deconvoluted by Houseman method. Genotyping performed...

10.1093/ecco-jcc/jjac127 article EN Journal of Crohn s and Colitis 2022-08-26

Abstract Background We recently found fecal microbiota transplantation (FMT) in irritable bowel syndrome (IBS) patients to be an effective and safe treatment after 3 months. The present follow‐up study investigated the efficacy safety of FMT at 1 year treatment. Methods This included 77 91 IBS who had responded our previous study. Patients provided a sample completed five questionnaires assess their symptoms quality life FMT. dysbiosis index (DI) bacterial profile were analyzed using 16S...

10.1111/nmo.14200 article EN Neurogastroenterology & Motility 2021-06-18

Background Faecal microbiota transplantation (FMT) seems to be a promising treatment for irritable bowel syndrome (IBS) patients. In Western countries (United States and Europe), there is female predominance in IBS. A sex difference the response FMT has been reported recently IBS Aim To investigate whether was patients who were included our previous randomized controlled trial of efficacy FMT. Methods The study 164 participated trial. These had moderate-to-severe symptoms belonging IBS-D...

10.3748/wjg.v27.i18.2219 article EN cc-by-nc World Journal of Gastroenterology 2021-05-10

Method We examined faecal samples, using the GA-map™ Dysbiosis Test, to associate gut microbiota composition with Crohn’s disease (CD) and ulcerative colitis (UC) identify markers for future biomarker identification. conducted a prospective case-control study (EU-ref. no. 305676) in an inception cohort of 324 individuals (64 CD, 84 UC, 116 symptomatic non-IBD controls 44 healthy controls) across five European centres 54 predetermined bacterial markers. categorized patients according Montreal...

10.1080/00365521.2020.1803396 article EN cc-by-nc-nd Scandinavian Journal of Gastroenterology 2020-08-11

Distinct faecal microbiota profiles are reported to be associated with various subtypes of IBS. Circulating antibodies cytolethal distending toxin B (CdtB) and vinculin proposed as biomarkers identify post-infectious The aim our study was analyse serum levels anti-CdtB anti-vinculin in patients different functional gastrointestinal disorders (FGID) their correlation the composition microbiome.The cohort comprised 65 prospectively recruited individuals: 15 diarrhoea-type-IBS (IBS-D), 13...

10.1111/eci.13666 article EN cc-by-nc-nd European Journal of Clinical Investigation 2021-08-14

Compared to their healthy counterparts, patients with type 2 diabetes (T2D) can exhibit an altered gut microbiota composition, correlated detrimental outcomes, including reduced insulin sensitivity, dyslipidemia, and increased markers of inflammation. However, a typical T2D profile is not established. The aim this pilot study was explore the bacteria associated prediabetes (pre-T2D) patients, treatment naïve compared subjects.Fecal samples were collected from subjects (from Norway)....

10.1186/s12902-023-01432-0 article EN cc-by BMC Endocrine Disorders 2023-08-21

Abstract Active microbes likely have larger impact on gut health status compared to inactive or dormant microbes. We investigate the composition of active and total mucosal microbiota treatment-naïve ulcerative colitis (UC) patients determine microbial picture at start-up phase disease, using both a 16S rRNA transcript gene amplicon sequencing. DNA RNA were isolated from same colonic biopsies. Our aim was identify members in early stages disease reveal which are present, but do not act as...

10.1038/s41598-018-35243-4 article EN cc-by Scientific Reports 2018-11-16

Background and Aims: The mineral compound Luvos Healing Earth (LHE) is a commercially available remedy empirically used for variety of gastrointestinal disorders. aim this study was to investigate the possible effect prolonged LHE therapy on gut microbiota in healthy individuals patients with diarrhea-predominant irritable bowel syndrome (IBS-D). Methods: In prospective exploratory study, total 20 participants, including 12 controls 8 IBS-D, received treatment (Magenfein Granulat, 1 sachet...

10.15403/jgld-5309 article EN Journal of Gastrointestinal and Liver Diseases 2024-03-29

P473 Histological inflammation in ulcerative colitis deep remission under treatment with infliximab A. Tursi1 *, W. Elisei2, M. Picchio3, G. Forti4, Penna5, P.G. Lecca6, Di Fonzo6, L. Cesare6, Brandimarte6. 1Azienda Sanitaria Locale BAT, Servizio di Gastroenterologia Territoriale, Andria, Italy, 2ASL RMH, Division of Gastroenterology, Albano Laziale, 3“P. Colombo” Hospital, ASL Surgery, Velletri, 4“S. Maria Goretti” Digestive Endoscopy Unit, Latina, 5“S. Paolo” Bari, 6“Cristo Re” Rome, Italy

10.1016/s1873-9946(14)60594-8 article IT Journal of Crohn s and Colitis 2014-02-01

Science S81Conclusions: These data show a strong correlation of inflammatory responses between the colitis and radiationinduced models GI injury, with common TNF-mediated, neutrophilic component in colon jejunum, respectively.Further studies will investigate time course tissue differences.The efficacy AVX-470m both highlights central role TNF tract inflammation, supports therapeutic potential an oral anti-TNF antibody disease.

10.1016/s1873-9946(14)60164-1 article EN Journal of Crohn s and Colitis 2014-02-01

Poster presentations to a labeled end of an amplified gene.T-RFLP is established technique for analysing bacterial species in faecal samples.Methods: This was quantitative analysis with major focus on evaluating biomarker based intestinal microbiota.The subjects were 69 UC patients together 80 relatives as controls.Twenty-three had active (group I) and 46 quiescent II).The latter included 17 mild inflammation the large intestine IIa), 29 without IIb).The patients' consanguineous III, n =...

10.1016/s1873-9946(13)60712-6 article EN Journal of Crohn s and Colitis 2013-02-01

Background: Knowledge about a patients' microbiota profiles might give useful information in diagnosing, early relapse prediction and to distinguish responders from non-responders treatment. Fecal calprotectin (FCal) is used as marker diagnosis follow-up of patients with inflammatory bowel diseases (IBD). The IBD-Character project aims analyse fecal profiles, microbial diversity concentration FCal treatment naive newly diagnosed IBD patients, symptomatic non-IBD healthy controls. Methods:...

10.1093/ecco-jcc/jjx002.909 article EN Journal of Crohn s and Colitis 2017-01-26

Background: Imbalance in the faecal microbiota with a reduction biodiversity; dysbiosis, has been identified inflammatory bowel disease (IBD). Our aim was to study and compare paediatric patients newly diagnosed untreated IBD of healthy children gastrointestinal symptoms but no IBD. We also aimed at studying related subgroups treatment. Methods: Faecal samples were collected from 235 adolescents. Eighty had Crohn's (CD), 27 ulcerative colitis (UC) 3 unclassified, 50 non-IBD 75 between two 18...

10.1093/ecco-jcc/jjx002.899 article EN Journal of Crohn s and Colitis 2017-01-26

Ulcerative colitis (UC) is a chronic inflammatory disease affecting the large intestine. The course varies from an indolent to aggressive disease, requiring early introduction of biologics and colectomy in treatment refractory individuals. There clinical need biomarkers that can be used predict future already at diagnosis. Microbiota signatures might help this respect could potentially become tool for implementation personalised medicine. Fecal samples were collected diagnosis 47...

10.1093/ecco-jcc/jjx180.997 article EN Journal of Crohn s and Colitis 2018-01-16
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