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https://www.readbyqxmd.com/read/28222161/the-distinct-features-of-microbial-dysbiosis-of-crohn-s-disease-do-not-occur-to-the-same-extent-in-their-unaffected-genetically-linked-kindred
#1
Umer Zeeshan Ijaz, Christopher Quince, Laura Hanske, Nick Loman, Szymon T Calus, Martin Bertz, Christine A Edwards, Daniel R Gaya, Richard Hansen, Paraic McGrogan, Richard K Russell, Konstantinos Gerasimidis
BACKGROUND/AIMS: Studying the gut microbiota in unaffected relatives of people with Crohn's disease (CD) may advance our understanding of the role of bacteria in disease aetiology. METHODS: Faecal microbiota composition (16S rRNA gene sequencing), genetic functional capacity (shotgun metagenomics) and faecal short chain fatty acids (SCFA) were compared in unaffected adult relatives of CD children (CDR, n = 17) and adult healthy controls, unrelated to CD patients (HUC, n = 14)...
2017: PloS One
https://www.readbyqxmd.com/read/28222018/analytical-performance-and-diagnostic-accuracy-of-six-different-faecal-calprotectin-assays-in-inflammatory-bowel-disease
#2
Matthijs Oyaert, An Boel, Julie Jacobs, Stefanie Van den Bremt, Maxime De Sloovere, Hilde Vanpoucke, Lieve Van Hoovels
BACKGROUND: We evaluated the analytical performance of six different faecal calprotectin immunoassays together with their diagnostic accuracy in the discrimination between functional and organic bowel disorders. METHODS: The faecal samples were obtained from inflammatory bowel disease patients (n=27) at the time of diagnosis [Crohn's disease (n=15), colitis ulcerosa (n=12)], gastroenterologic disease control patients (n=52) and rheumatologic disease control patients (n=26)...
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28221251/evidence-of-bidirectional-associations-between-perceived-stress-and-symptom-activity-a-prospective-longitudinal-investigation-in-inflammatory-bowel-disease
#3
Kathryn A Sexton, John R Walker, Lesley A Graff, Matthew T Bernstein, Brooke Beatie, Norine Miller, Michael Sargent, Laura E Targownik
BACKGROUND: Our aim was to explore the relationships among perceived stress, intestinal inflammation, and inflammatory bowel disease (IBD) symptoms over time. METHODS: Participants were recruited from a population-based registry of persons with IBD and assessed at months 0, 3, and 6. Key dependent measures were the Manitoba IBD Index (symptom activity), Cohen's Perceived Stress Scale, and fecal calprotectin in stool (intestinal inflammation). RESULTS: Complete data were available for 417 participants at months 0; 369 provided follow-up data...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28221250/factors-associated-with-discontinuation-of-anti-tnf-inhibitors-among-persons-with-ibd-a-population-based-analysis
#4
Laura E Targownik, Aruni Tennakoon, Stella Leung, Lisa M Lix, Zoann Nugent, Harminder Singh, Charles N Bernstein
INTRODUCTION: Antitumor necrosis factor (anti-TNF) medications are known to be highly efficacious in persons with moderate-to-severe inflammatory bowel disease (IBD). There is a paucity of data from population-based sources to elucidate persistence with these medications in the general population of IBD. Discontinuation of anti-TNF therapy is a marker of lack of effectiveness, intolerance, and patient/physician practice preferences. METHODS: We identified all persons with IBD in Manitoba who were dispensed infliximab (IFX) and adalimumab (ADA) between 2001 and 2014...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28221249/the-%C3%AE-4%C3%AE-1-homing-pathway-is-essential-for-ileal-homing-of-crohn-s-disease-effector-t-cells-in-vivo
#5
Sebastian Zundler, Anika Fischer, Daniela Schillinger, Marie-Theres Binder, Raja Atreya, Timo Rath, Rocío Lopez-Pósadas, Caroline J Voskens, Alastair Watson, Imke Atreya, Clemens Neufert, Markus F Neurath
BACKGROUND: The precise mechanisms controlling homing of T effector (Teff) cells to the inflamed gut in Crohn's disease (CD) are still unclear, and clinical outcome data from patients with inflammatory bowel disease treated with the anti-α4β7 integrin antibody vedolizumab suggest differences between ulcerative colitis and CD. METHODS: Expression of homing molecules was studied with flow cytometry and immunohistochemistry. Their functional role was investigated in in vitro adhesion assays and in a humanized mouse model of T cell homing to the inflamed gut in vivo...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28221248/early-transcriptomic-changes-in-the-ileal-pouch-provide-insight-into-the-molecular-pathogenesis-of-pouchitis-and-ulcerative-colitis
#6
Yong Huang, Sushila Dalal, Dionysios Antonopoulos, Nathaniel Hubert, Laura H Raffals, Kyle Dolan, Christopher Weber, Jeannette S Messer, Bana Jabri, Albert Bendelac, A Murat Eren, David T Rubin, Mitch Sogin, Eugene B Chang
BACKGROUND: Ulcerative colitis (UC) only involves the colonic mucosa. Yet, nearly 50% of patients with UC who undergo total proctocolectomy with ileal pouch anal anastomosis develop UC-like inflammation of the ileal pouch (pouchitis). By contrast, patients with familial adenomatous polyposis (FAP) with ileal pouch anal anastomosis develop pouchitis far less frequently. We hypothesized that pathogenic events associated with the development of UC are recapitulated by colonic-metaplastic transcriptomic reprogramming of the UC pouch...
March 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28218881/mr-imaging-of-perianal-crohn-disease
#7
Shannon P Sheedy, David H Bruining, Eric J Dozois, William A Faubion, Joel G Fletcher
Pelvic magnetic resonance (MR) imaging is currently the standard for imaging perianal Crohn disease. Perianal fistulas are a leading cause of patient morbidity because closure often requires multimodality treatments over a prolonged period of time. This review summarizes clinically relevant anal sphincter anatomy, imaging methods, classification systems, and treatment objectives. In addition, the MR appearance of healing perianal fistulas and fistula complications is described. Difficult imaging tasks including the assessment of rectovaginal fistulas and ileoanal anastomoses are highlighted, along with illustrative cases...
March 2017: Radiology
https://www.readbyqxmd.com/read/28217370/tryptophan-a-gut-microbiota-derived-metabolites-regulating-inflammation
#8
REVIEW
Lucie Etienne-Mesmin, Benoit Chassaing, Andrew T Gewirtz
Inflammatory bowel diseases (IBD), which comprise Crohn's disease and ulcerative colitis, are chronic intestinal disorders with an increased prevalence and incidence over the last decade in many different regions over the world. The etiology of IBD is still not well defined, but evidence suggest that it results from perturbation of the homeostasis between the intestinal microbiota and the mucosal immune system, with the involvement of both genetic and environmental factors. Genome wide association studies, which involve large-scale genome-wide screening of potential polymorphism, have identified several mutations associated with IBD...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28216978/role-of-capsule-endoscopy-in-suspected-celiac-disease-a-european-multi-centre-study
#9
Marisol Luján-Sanchis, Enrique Pérez-Cuadrado-Robles, Javier García-Lledó, José-Francisco Juanmartiñena Fernández, Luca Elli, Victoria-Alejandra Jiménez-García, Juan Egea-Valenzuela, Julio Valle-Muñoz, Cristina Carretero-Ribón, Ignacio Fernández-Urién-Sainz, Antonio López-Higueras, Noelia Alonso-Lázaro, Mileidis Sanjuan-Acosta, Francisco Sánchez-Ceballos, Bruno Rosa, Santiago González-Vázquez, Federica Branchi, Lucía Ruano-Díaz, César Prieto-de-Frías, Vicente Pons-Beltrán, Pilar Borque-Barrera, Begoña González-Suárez, Sofía Xavier, Federico Argüelles-Arias, Juan-Manuel Herrerías-Gutiérrez, Enrique Pérez-Cuadrado-Martínez, Javier Sempere-García-Argüelles
AIM: To analyze the diagnostic yield (DY), therapeutic impact (TI) and safety of capsule endoscopy (CE). METHODS: This is a multi-centre, observational, analytical, retrospective study. A total of 163 patients with suspicion of celiac disease (CD) (mean age = 46.4 ± 17.3 years, 68.1% women) who underwent CE from 2003 to 2015 were included. Patients were divided into four groups: seronegative CD with atrophy (Group-I, n = 19), seropositive CD without atrophy (Group-II, n = 39), contraindication to gastroscopy (Group-III, n = 6), seronegative CD without atrophy, but with a compatible context (Group-IV, n = 99)...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28216970/predictors-of-vitamin-d-deficiency-in-inflammatory-bowel-disease-and-health-a-mississippi-perspective
#10
Kumar Pallav, Daniel Riche, Warren L May, Patrick Sanchez, Nitin K Gupta
AIM: To identify the predictors of vitamin D deficiency in patients with and without inflammatory bowel disease (IBD). METHODS: Patients with ulcerative colitis (UC) or Crohn's disease (CD) related diagnostic codes who received medical care at University of Mississippi Medical Center between July 2012 and 2015 were identified. After thorough chart review, we identified patients with biopsy proven IBD who had also been tested for serum 25-hydroxyvitamin D [25(OH)D] concentration...
January 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28216137/low-predictive-value-of-histopathological-scoring-system-for-complications-development-in-children-with-crohn-s-disease
#11
Ondrej Fabian, Ondrej Hradsky, Kristyna Potuznikova, Alena Kalfusova, Lenka Krskova, Ludmila Hornofova, Josef Zamecnik, Jiri Bronsky
OBJECTIVES: In pediatric Crohn's disease (PCD), the benefit of microscopy in disease activity assessment and prediction of clinical outcome is, due to the focality and transmurality of the inflammation, disputable. We investigated whether histopathological scoring system predicts complications in pediatric CD and correlates with endoscopical and clinical scores. METHODS: We performed a retrospective study on 63 patients. Endoscopy in the time of diagnosis was evaluated using the Simple Endoscopic Score (SES) and histopathology with the Global Histology Activity Score, both in its original version (GHAS) and its modification (modGHAS)...
January 15, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28214210/pathologic-features-of-colorectal-carcinomas-associated-with-crohn-s-disease-in-korean-population
#12
Jiyoon Kim, Ho-Su Lee, Sang Hyoung Park, Suk-Kyun Yang, Byong Duk Ye, Dong-Hoon Yang, Kyung-Jo Kim, Jeong-Sik Byeon, Yong Sik Yoon, Chang Sik Yu, Jihun Kim
BACKGROUND: Colorectal cancer (CRC) has been known to complicate Crohn's disease (CD). Several reports in Western population revealed that CRC in CD were characterized by much younger onset and equal distribution of tumors along the entire colon. However, clinicopathologic features of CD-associated CRC in Korean population have not been well documented yet. METHODS: Among 2968 Korean CD patients, 16 patients (0.54%) were found to develop CRC during follow up. We reviewed clinicopathologic features of the 16 CRC patients...
December 21, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28212924/ibd-immunopathogenesis-a-comprehensive-review-of-inflammatory-molecules
#13
REVIEW
Jae Hyon Park, Laurent Peyrin-Biroulet, Michael Eisenhut, Jae Il Shin
Inflammatory molecules play a crucial role in the pathogenesis of inflammatory bowel disease (IBD) such as ulcerative colitis and Crohn's disease, both of which are chronic inflammatory conditions of the gastrointestinal tract. Abnormal expressions of pro-and anti-inflammatory molecules have been described to cause an imbalance to the gut innate and adaptive immunity, and recently a large portion of research in IBD has been geared towards identifying novel molecules that may be used as potential therapeutic targets...
February 14, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28212530/transcriptome-analysis-reveals-non-identical-microrna-profiles-between-arterial-and-venous-plasma
#14
Wenjing Xu, Yuan Zhou, Guoheng Xu, Bin Geng, Qinghua Cui
Circulating microRNAs presented in venous plasma have been demonstrated as powerful biomarkers for the complex diseases like cancer. Nevertheless, those presented in arterial plasma remained largely unexplored. Here, using microarray technique, we compared microRNA expression profiles of the matched arterial and venous plasma samples from the same male rats. Though the microRNA profiles were largely similar, we identified 24 differentially expressed microRNAs, including 10 arterial highly expressed microRNAs and 14 venous highly expressed microRNAs...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212152/an-update-on-small-bowel-endoscopy
#15
Hey-Long Ching, Mark E McAlindon, Reena Sidhu
PURPOSE OF REVIEW: The breakthrough success of capsule endoscopy and device-assisted enteroscopy has inspired researchers to test and push the boundary of these technologies. The authors herein summarize the latest and most significant studies with clinical impact. RECENT FINDINGS: Competing capsule endoscopy models have enriched the platform of this wireless device. The role of capsule endoscopy in Crohn's disease is expanding as we learn more of the significance of disease distribution and response to treatment...
February 15, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28211631/editorial-relative-efficacy-of-infliximab-and-adalimumab-in-crohn-s-disease-in-an-australian-and-new-zealand-cohort-authors-reply
#16
EDITORIAL
G L Radford-Smith, F Hartnell, J D Doecke
No abstract text is available yet for this article.
March 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28211628/editorial-relative-efficacy-of-infliximab-and-adalimumab-in-crohn-s-disease-in-an-australian-and-new-zealand-cohort
#17
EDITORIAL
M Barreiro-de Acosta, J P Gisbert
No abstract text is available yet for this article.
March 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28211593/higher-infliximab-trough-levels-are-associated-with-perianal-fistula-healing-in-patients-with-crohn-s-disease
#18
A J Yarur, V Kanagala, D J Stein, F Czul, M A Quintero, D Agrawal, A Patel, K Best, C Fox, K Idstein, M T Abreu
BACKGROUND: Infliximab has been found to be efficacious in the treatment of fistulas in the setting of Crohn's disease, even though some patients do not benefit from therapy. AIM: To assess the correlation between perianal fistula healing and trough levels of infliximab. METHODS: In this cross-sectional study, we identified patients with Crohn's disease who had perianal fistulas and were treated with infliximab for at least 24 weeks. We excluded patients who underwent a faecal diversion procedure or proctectomy...
February 17, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28211554/psychiatric-illnesses-in-inflammatory-bowel-diseases-psychiatric-comorbidity-and-biological-underpinnings
#19
REVIEW
Jarosław Nowakowski, Adrian Andrzej Chrobak, Dominika Dudek
Inflammatory bowel disease is a group of chronic medical conditions comprising Crohn's disease and ulcerative colitis that involves increased frequency of mental disorders. The most common psychiatric disorders in inflammatory bowel disease are depression and anxiety, however, some epidemiologic and biological evidence suggest that other disorders like bipolar disorder occur more often. Biological mechanisms concerning both inflammatory bowel disease and depression or anxiety explain susceptibility to developing mental disorders in inflammatory bowel disease...
December 23, 2016: Psychiatria Polska
https://www.readbyqxmd.com/read/28211282/signet-ring-cell-carcinoma-of-the-jejunum-an-uncommon-finding-within-the-reach-of-capsule-endoscopy
#20
José Francisco Juanmartiñena, Marta Montes, Ignacio Fernández-Urién
An 80 year-old female presented with ductal breast carcinoma (stage II) three years ago, complained of asthenia and iron-deficiency anemia. No diagnosis was obtained after conventional endoscopy and iron supplements were indicated. Ten months later visible digestive hemorrhage was presented. Upper and lower endoscopy was repeated but non-diagnosis was obtained. Thus, video capsule endoscopy was indicated identifying a stenotic lesion arising in the mucosa of distal jejunum. Histopathological examination revealed a poorly mucinous differentiated signet-ring cell adenocarcinoma with an intense peri-tumoral lymphoid (Crohn´s-like lymphoid reaction) and lympho-vascular infiltration with no nodal metastases (pT3N0;7ª edition TNM classification)...
February 2017: Revista Española de Enfermedades Digestivas
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