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Collagenous colitis

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https://www.readbyqxmd.com/read/28511188/calprotectin-in-daily-practice-where-do-we-stand-in-2017
#1
Fabrizia D'Angelo, Christian Felley, Jean Louis Frossard
BACKGROUND: To make a distinction between organic and functional disease is essential for gastroenterologists in their daily practice, but it may be challenging, given the variety and aspecificity of gastrointestinal symptoms among the general population. The clinician aim is to avoid diagnostic delay and to restrict unnecessary invasive and expensive exams. SUMMARY: Faecal markers, in particular faecal calprotectin (FC), have given proof of being reliable markers of intestinal inflammation with good clinical sensitivity...
May 17, 2017: Digestion
https://www.readbyqxmd.com/read/28501138/submucosal-neurons-and-enteric-glial-cells-expressing-the-p2x7-receptor-in-rat-experimental-colitis
#2
Marcos Vinícius da Silva, Aline Rosa Marosti, Cristina Eusébio Mendes, Kelly Palombit, Patricia Castelucci
The aim of this study was to evaluate the effect of ulcerative colitis on the submucosal neurons and glial cells of the submucosal ganglia of rats. 2,4,6-Trinitrobenzene sulfonic acid (TNBS; colitis group) was administered in the colon to induce ulcerative colitis, and distal colons were collected after 24h. The colitis rats were compared with those in the sham and control groups. Double labelling of the P2X7 receptor with calbindin (marker for intrinsic primary afferent neurons, IPANs, submucosal plexus), calretinin (marker for secretory and vasodilator neurons of the submucosal plexus), HuC/D and S100β was performed in the submucosal plexus...
May 10, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28498152/oligoclonal-t-cell-receptor-repertoire-in-colonic-biopsies-of-patients-with-microscopic-colitis-and-ulcerative-colitis
#3
Sezin Günaltay, Dirk Repsilber, Gisela Helenius, Nils Nyhlin, Johan Bohr, Olof Hultgren, Elisabeth Hultgren Hörnquist
BACKGROUND: Microscopic colitis (MC), comprising collagenous colitis (CC) and lymphocytic colitis (LC), is a type of variation of inflammatory bowel diseases. Local T-cell infiltration in the mucosa plays a major role in MC immunopathology. METHODS: To understand diversity and clonality of infiltrating T cells, we analyzed the T-cell receptor beta (TCRβ) chains in colonic biopsies of MC, ulcerative colitis (UC), and their remission counterparts (CC/LC-HR [histological remission] or UC-R [remission]) compared with patients with noninflamed colons using next-generation sequencing...
May 10, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28488312/immune-modulator-therapy-for-microscopic-colitis-in-a-case-series-of-73-patients
#4
T G Cotter, A K Kamboj, S B Hicks, W J Tremaine, E V Loftus, D S Pardi
BACKGROUND: Microscopic colitis (MC) is a common cause of chronic diarrhoea. Various treatment options have been described, but there are limited data describing outcomes of corticosteroid-sparing treatments. AIM: To evaluate the outcomes of patients with active MC treated with immune modulators. METHODS: All patients seen at Mayo Clinic, Rochester between January 1, 1997 and November 30, 2016 with a histological diagnosis of MC were identified...
May 10, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28469361/macroscopic-findings-in-collagenous-colitis-a-multi-center-retrospective-observational-cohort-study
#5
Anastasios Koulaouzidis, Diana E Yung, Artur Nemeth, Klas Sjöberg, Andry Giannakou, Raheel Qureshi, Leonidas Bartzis, Morna McNeill, Gabriele Wurm Johansson, Alfredo J Lucendo, Paul Fineron, Ken C Trimble, Athar Saeed, John N Plevris, Ervin Toth
BACKGROUND: Collagenous colitis (CC) is by definition a histological diagnosis. However, colonoscopy often reveals characteristic endoscopic findings. The aim of this study was to evaluate the frequency and type of endoscopic findings in patients diagnosed with CC in 4 participating centers. METHODS: This was a retrospective study; the databases of 2 university hospitals in Edinburgh (Scotland) and Malmö (Sweden), and 2 district general hospitals in Tomelloso (Spain) and Gateshead (England) were interrogated for patients diagnosed with CC between May 2008 and August 2013...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28457904/collagenous-colitis-requirement-for-high-dose-budesonide-as-maintenance-treatment
#6
Fernando Fernandez-Bañares, Marta Piqueras, Danila Guagnozzi, Virginia Robles, Alexandra Ruiz-Cerulla, María José Casanova, Javier P Gisbert, David Busquets, Yolanda Arguedas, Angeles Pérez-Aisa, Luis Fernández-Salazar, Alfredo J Lucendo
BACKGROUND: Controlled studies show high efficacy of budesonide in inducing short-term clinical remission in collagenous colitis (CC), but relapses are common after its withdrawal. AIM: To evaluate the need for high-dose budesonide (≥6mg/d) to maintain clinical remission in CC. METHODS: Analysis of a multicentre retrospective cohort of 75 patients with CC (62.3±1.5years; 85% women) treated with budesonide in a clinical practice setting between 2013 and 2015...
April 10, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28350750/family-history-comorbidity-smoking-and-other-risk-factors-in-microscopic-colitis-a-case-control-study
#7
Anna Wickbom, Nils Nyhlin, Scott M Montgomery, Johan Bohr, Curt Tysk
OBJECTIVES: Data on heredity, risk factors and comorbidity in microscopic colitis, encompassing collagenous colitis (CC) and lymphocytic colitis (LC), are limited. AIM: The aim was to carry out a case-control study of family history, childhood circumstances, educational level, marital status, smoking and comorbidity in microscopic colitis. METHODS: A postal questionnaire was sent in 2008-2009 to microscopic colitis patients resident in Sweden and three population-based controls per patient, matched for age, sex and municipality...
May 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28324642/cinnamon-reduces-inflammatory-response-in-intestinal-fibroblasts-in-vitro-and-in-colitis-in-vivo-leading-to-decreased-fibrosis
#8
Yvonne Hagenlocher, Sabrina Satzinger, Mehtap Civelek, Katharina Feilhauer, Jörg Köninger, Stephan C Bischoff, Axel Lorentz
Intestinal fibrosis, a complication of inflammatory bowel disease, is currently being addressed by surgery alone, with no adequate alternative therapy available for patients. We propose that anti-inflammatory plant substances like cinnamon extract (CE) or its main compound cinnamaldeyde (CA) could aid in therapy. We recently found CE reducing inflammation in murine colitis. Here, we analysed effects of CE on fibrosis in IL-10(-/-) colitis METHODS AND RESULTS: IL-10(-/-) and wild type (wt) mice were orally treated with/without vehicle or CE...
March 21, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28321159/proton-pump-inhibitor-induced-collagen-expression-in-colonocytes-is-associated-with-collagenous-colitis
#9
Shiori Mori, Yui Kadochi, Yi Luo, Rina Fujiwara-Tani, Yukiko Nishiguchi, Shingo Kishi, Kiyomu Fujii, Hitoshi Ohmori, Hiroki Kuniyasu
AIM: To elucidate the role of proton pump inhibitors (PPIs) in collagenous disease, direct effect of PPI on colonocytes was examined. METHODS: Collagenous colitis is a common cause of non-bloody, watery diarrhea. Recently, there has been increasing focus on the use of proton PPIs as a risk factor for developing collagenous colitis. Mouse CT26 colonic cells were treated with PPI and/or PPI-induced alkaline media. Expression of fibrosis-associated genes was examined by RT-PCR...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28288330/the-pharmacodynamic-active-components-study-of-tibetan-medicine-gentianopsis-paludosa-on-ulcerative-colitis-fibrosis
#10
Nian-Hua Lu, Hui-Qiao Zhao, Ming Jing, Xiong Liu, Chun-Zhen Ren, Xue-Feng Liu, Juan-Juan Liu, Yan-Xia Zhang
The current study focused on the pharmacodynamic activity components of Gentianopsis paludosa against ulcerative colitis (UC) fibrosis including symptoms of intestinal diarrhea and inflammatory. Trinitro-benzene-sulfonic acid induced UC model rats were gavaged with gradient polarity extracts respectively from ethanol-extract of Gentianopsis paludosa. Masson staining and qRT-PCR methods were respectively used to assess the degree of UC fibrosis and detect the mRNA expressions of collagen I, collagen III, a-smooth muscle actin (α-SMA) and E-cadherin in colon tissue...
March 10, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28275312/clinical-and-immunologic-effects-of-faecal-microbiota-transplantation-in-a-patient-with-collagenous-colitis
#11
Sezin Günaltay, Lech Rademacher, Elisabeth Hultgren Hörnquist, Johan Bohr
One to six percent of patients with microscopic colitis are refractory to medical treatment. The effect of faecal microbiota transplantation (FMT) in active collagenous colitis (CC) has, to the best of our knowledge, never been reported before. Here, we report the effect of repeated FMT in a patient with CC. The patient presented with severe symptoms including profuse diarrhea and profound weight loss. Although she responded to budesonide in the beginning, she became gradually refractory to medical treatment, and was therefore treated with FMT...
February 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28260714/a-case-of-collagenous-colitis-associated-with-novel-oral-anticoagulants-use
#12
Juri Ikemoto, Kouichi Nakadoi, Seiji Onogawa, Motomitsu Fukuhara, Takayoshi Shishido, Keiji Hanada, Shuji Yonehara
An 84-year-old man was referred to our hospital because of watery diarrhea. Due to cerebral infarction, he had started treatment with a novel oral anticoagulants (NOAC) 1 month prior to admission. The patient underwent blood tests, enhanced computed tomography, and colonoscopy, which indicated infectious or medicinal colitis. The diarrhea persisted and he developed hypokalemia, so a second colonoscopy was performed, which showed edematous mucosa. Colonic mucosal biopsies showed a thick collagen band in the subepithelial region, and collagenous colitis was diagnosed...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/28215538/over-90-of-cases-of-microscopic-colitis-can-be-diagnosed-by-performing-a-short-colonoscopy
#13
Gilles Macaigne, Pierre Lahmek, Christophe Locher, Jean François Boivin, Bruno Lesgourgues, Mathieu Yver, Laurent Costes, I Abd Alsamad, Joel Cucherousset, Claire Charpignon, Hélène Guyot, Bénédicte Lambaré, Jean-Michel Ghilain, Valérie Calès, Stéphanie de Montigny-Lenhardt, Guy Bellaïche, Alexandre Pariente, Stéphane Nahon
AIMS: To determinate the topographical distribution of key diagnostic histological features of lymphocytic colitis (LC) and collagenous colitis (CC) and to establish what correlations may exist between the histological findings and the causes and severity of MC. PATIENTS AND METHODS: Patients with MC were included in a prospective multicentre French study from September 2010 to October 2012. MC was diagnosed by performing total colonoscopy with multiple biopsies of the rectum and colon collected in separate jars and analyzed separately for each site (descending and sigmoid colon, transverse colon, ascending colon)...
February 16, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28207769/role-of-glycogen-synthase-kinase-3%C3%AE-and-ppar-%C3%AE-on-epithelial-to-mesenchymal-transition-in-dss-induced-colorectal-fibrosis
#14
Jacopo Di Gregorio, Roberta Sferra, Silvia Speca, Antonella Vetuschi, Caroline Dubuquoy, Pierre Desreumaux, Simona Pompili, Loredana Cristiano, Eugenio Gaudio, Vincenzo Flati, Giovanni Latella
BACKGROUND: Intestinal fibrosis is characterized by abnormal production and deposition of extracellular matrix (ECM) proteins by activated myofibroblasts. The main progenitor cells of activated myofibroblasts are the fibroblasts and the epithelial cells, the latter through the epithelial-mesenchymal transition (EMT). AIM: To evaluate the action of the new PPAR-γ modulator, GED-0507-34 Levo (GED) on the expression of EMT associated and regulatory proteins such as TGF-β, Smad3, E-cadherin, Snail, ZEB1, β-catenin, and GSK-3β, in a mouse model of DSS-induced intestinal fibrosis...
2017: PloS One
https://www.readbyqxmd.com/read/28179109/mechanisms-of-defense-against-products-of-cysteine-catabolism-in-the-nematode-caenorhabditis-elegans
#15
Leonid Livshits, Arijit Kumar Chatterjee, Netanel Karbian, Rachel Abergel, Zohar Abergel, Einav Gross
Cysteine catabolism presents cells with a double-edged sword. On the one hand, cysteine degradation provides cells with essential molecules such as taurine and sulfide. The formation of sulfide in cells is thought to regulate important and diverse physiological processes including blood circulation, synaptic activity and inflammation. On the other hand, the catabolism of cysteine by gut microbiota can release high levels of sulfide that may underlie the development or relapse of ulcerative colitis, an inflammatory bowel disease affecting millions of people worldwide...
March 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28175009/p048-decreased-expression-of-aquaporins-in-colonic-biopsies-from-collagenous-colitis-patients-a-novel-diarrhoeal-pathomechanism
#16
A Holm, A Mancebo Giménez, V Loitto, E Vikström, K-E Magnusson, A Münch
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28130288/topical-timolol-for-the-treatment-of-pyoderma-gangrenosum
#17
Catarina Moreira, Sofia Lopes, Maria João Cruz, Filomena Azevedo
Treatment of pyoderma gangrenosum (PG) remains a challenge, and there are currently no specific or uniformly effective therapies. Although widespread or rapidly progressive disease often requires systemic treatment, localised and mild lesions may be effectively controlled with topical agents. The most frequently applied topical drugs are corticosteroids and calcineurin inhibitors. Recently, a patient with idiopathic PG of the lower limb was successfully treated with topical timolol and collagenase. Here, we report a case of a patient with collagenous colitis, ankylosing spondylitis and periumbilical PG...
January 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28119938/pseudomembranous-collagenous-colitis-a-case-of-not-so-microscopic-colitis
#18
Douglas Grunwald, Manisha Mehta, Sunil G Sheth
We present a 72-year-old male who developed progressive, watery diarrhea despite anti-motility agents. On colonoscopy, the mucosa was inflamed and covered with an exudate. Stool studies for Clostridium difficile and Escherichia coli were negative. Biopsies revealed pseudomembranous collagenous colitis, a rare form of microscopic colitis. His symptoms improved dramatically with budesonide therapy.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28101837/drug-exposure-and-the-risk-of-microscopic-colitis-a-critical-update
#19
REVIEW
Alfredo J Lucendo
A variety of luminal antigens, including a wide range of drugs, have been associated with the still little-known pathophysiology of microscopic colitis (MC), with variable evidence suggesting causality. This article aims to review the aspects related to drugs as potential triggers of MC; to discuss the most commonly identified associations between drugs and MC; and to analyze the limitations of the studies currently available. A literature search was performed in PubMed combining the search terms 'drug exposure', 'drug consumption', and 'risk factors' with 'microscopic colitis', 'lymphocytic colitis', and 'collagenous colitis', with no language restrictions...
March 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28044228/reduced-il-37-production-increases-spontaneous-chemokine-expressions-in-colon-epithelial-cells
#20
Sezin Günaltay, Mohammed Ghiboub, Olof Hultgren, Elisabeth Hultgren Hörnquist
BACKGROUND AND AIM: Microscopic colitis, comprising collagenous colitis and lymphocytic colitis, is a common cause of chronic diarrhea. Previously, we showed enhanced chemokine productions in microscopic colitis patients, indicating dysregulated immune cell chemotaxis in the immunopathogenesis. We also showed decreased mRNA of IL-37, mainly regarded as an anti-inflammatory cytokine, in the colonic mucosa of these patients, potentially an important factor for the chronicity of the colitis...
May 2017: Digestive Diseases and Sciences
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