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https://www.readbyqxmd.com/read/29774158/efficacy-of-vedolizumab-for-induction-of-clinical-response-and-remission-in-patients-with-moderate-to-severe-inflammatory-bowel-disease-who-failed-at-least-two-tnf-antagonists
#1
Martine De Vos, Barbara Dhooghe, Severine Vermeire, Edouard Louis, Fazia Mana, Ann Elewaut, Peter Bossuyt, Filip Baert, Catherine Reenaers, Marc Van Gossum, Elisabeth Macken, Marc Ferrante, Pieter Hindryckx, Olivier Dewit, Tom Holvoet, Denis Franchimont
Background: Vedolizumab is a recently available monoclonal antibody targeting α4β7 integrin for the treatment of ulcerative colitis (UC) and Crohn's disease (CD). Objective: The objective of this article is to evaluate the efficacy of vedolizumab induction therapy in anti-TNF-refractory/intolerant UC and CD patients in real life. Methods: A cohort of 149 moderately to severely active UC and CD patients who failed or showed intolerance to at least two TNF antagonists participated in a medical need program and received vedolizumab in 37 Belgian centers (April-September 2015)...
April 2018: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/29774052/therapeutic-drug-monitoring-of-vedolizumab-in-inflammatory-bowel-disease-current-data-and-future-directions
#2
REVIEW
Mark G Ward, Miles P Sparrow, Xavier Roblin
The introduction of vedolizumab, a lymphocyte adhesion inhibitor, has expanded the relatively limited therapeutic armamentarium available for Crohn's disease and ulcerative colitis. Despite its effectiveness, both primary nonresponse and secondary loss of response to vedolizumab do occur, as is observed with the use of anti-tumour necrosis factor (TNF) therapy. Further, in a proportion, onset of efficacy may be relatively slow. A large body of data support an exposure-response relationship with anti-TNF drug levels, which has led to therapeutic drug monitoring becoming incorporated into everyday clinical management...
2018: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/29772233/roseburia-intestinalis-derived-flagellin-is-a-negative-regulator-of-intestinal-inflammation
#3
Yongsheng Quan, Kerui Song, Yan Zhang, Changxin Zhu, Zhaohua Shen, Shuai Wu, Weiwei Luo, Bei Tan, Zhenyu Yang, Xiaoyan Wang
Our previous study showed that the Roseburia intestinalis (R. intestinalis), one of the dominant intestinal bacterial microbiota, was significantly decreased in Crohn's disease patients and protected colon epithelial cells from inflammatory damage. However, the roles of lncRNAs in R. intestinalis flagellin-mediated anti-inflammation remain unclear. In this study, we investigate global lncRNA expression profiles using microarray analysis of ulcerative colitis samples from DSS/Flagellin-challenged mice and identified a Flagellin-induced upregulated lncRNA (HIF1A-AS2)...
May 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29766731/-current-and-prospective-biologics-and-small-molecules-in-the-treatment-of-inflammatory-bowel-diseases
#4
Milan Buc
Crohns disease (CD) and ulcerative colitis (UC) belong to chronic inflammatory bowel diseases, which are induced by autoimmune processes. While CD is characterized by over-activity of Th1, ILC1, and MAIT cells, UC is mediated by exaggerated activities of Th2 and ILC2 cells and cytokines they produce. Knowledge of the pathogenesis enabled a rational therapy based mostly on biologics and small molecules. TNF is the principal proinflammatory cytokine in both diseases. Anti-TNF monoclonal antibodies, mostly infliximab or adalimumab were therefore introduced to their treatment...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29766398/hepatosplenic-t-cell-lymphoma-a-unifying-entity-in-a-patient-with-hemolytic-anemia-massive-splenomegaly-and-liver-dysfunction
#5
Marianna Mavilia, Agnes McAuliffe, Safina Hafeez, Haleh Vaziri
Hepatosplenic T cell lymphoma (HSTCL) is a rare subtype of peripheral non-Hodgkin lymphoma, of which 20% of cases are associated with chronic immunosuppression. It often occurs in patients with inflammatory bowel disease treated with immunomodulating medications such a thiopurines or TNF-alpha inhibitors. Cytopenias are commonly seen but autoimmune hemolytic anemia (AIHA) is rare. Here we present a young male with longstanding ulcerative colitis on chronic azathioprine, exhibiting several rare features of HSTCL...
May 15, 2018: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29757351/m10-a-novel-derivative-of-myricetin-prevents-ulcerative-colitis-and-colorectal-tumor-through-attenuating-robust-endoplasmic-reticulum-stress
#6
Feng Wang, Zhi-Yu Song, Xian-Jun Qu, Feng Li, Liang Zhang, Wen-Bao Li, Shu-Xiang Cui
Chronic gut inflammation disposes to an increased risk of colitis-associated cancer (CAC). Chemoprevention is an attractive complementary strategy. We aimed to evaluate the chemopreventive effects of M10, a novel derivative of Myricetin, in the murine azoxymethane (AOM)/dextran sodium sulfate (DSS) model. Oral administration of M10 at 50-100 mg/kg once a day for consecutive 12 weeks significantly prevented ulcerative colitis and colorectal tumor. Pathological analysis of intestines showed that M10 reduced the degree of chronic inflammation and prevented the progression of colorectal tumorigenesis...
May 11, 2018: Carcinogenesis
https://www.readbyqxmd.com/read/29754190/allergic-and-immunologic-perspectives-of-inflammatory-bowel-disease
#7
REVIEW
Kofi Clarke, Jayakrishna Chintanaboina
Inflammatory bowel disease (IBD) is a chronic immune-mediated inflammatory condition primarily involving the gastrointestinal tract. It includes Crohn's disease (CD), ulcerative colitis (UC), and a less common phenotype-indeterminate colitis. It is thought to result from a complex interplay of environmental, microbial, and host factors including genetic factors, although the exact mechanism is not known. Dietary factors have been shown to play a role in the pathogenesis of IBD and can potentially alter the intestinal microbiota as well as disrupt the immune function in the gut...
May 12, 2018: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29752633/clinical-pharmacokinetic-and-pharmacodynamic-considerations-in-the-treatment-of-ulcerative-colitis
#8
REVIEW
Sophie E Berends, Anne S Strik, Mark Löwenberg, Geert R D'Haens, Ron A A Mathôt
Ulcerative colitis (UC) is an inflammatory bowel disease (IBD) of unknown etiology, probably caused by a combination of genetic and environmental factors. The treatment of patients with active UC depends on the severity, localization and history of IBD medication. According to the classic step-up approach, treatment with 5-aminosalicylic acid compounds is the first step in the treatment of mild to moderately active UC. Corticosteroids, such as prednisolone are used in UC patients with moderate to severe disease activity, but only for remission induction therapy because of side effects associated with long-term use...
May 12, 2018: Clinical Pharmacokinetics
https://www.readbyqxmd.com/read/29751165/no-association-between-consumption-of-sweetened-beverages-and-later-risk-of-crohn-s-disease-or-ulcerative-colitis
#9
Hamed Khalili, Niclas Hakansson, Simon S Chan, Jonas F Ludvigsson, Ola Olen, Andrew T Chan, Andrew R Hart, Alicja Wolk
BACKGROUND & AIMS: Consumption of sweetened beverages has been associated with inflammation, based on measurements of C-reactive protein and tumor necrosis factor, as well as immune-mediated disorders including rheumatoid arthritis. We investigated associations with Crohn's disease (CD) or ulcerative colitis (UC). METHODS: We conducted a prospective cohort study of 83,042 participants (44-83 years old) enrolled in the Cohort of Swedish Men or the Swedish Mammography Study...
May 8, 2018: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29747125/a-characterization-of-pro-inflammatory-cytokines-in-dextran-sulfate-sodium-induced-chronic-relapsing-colitis-mice-model
#10
Yan-Hong Li, Rosenstein Adam, Jean-Frederic Colombel, Zhao-Xiang Bian
Repeated cycles of dextran sulfate sodium (DSS) administration in mice, inducing chronic relapsing colitis, have been used to mimic human ulcerative colitis (UC). However, no systematic characterization of pro-inflammatory cytokines in these DSS mice has been reported. In this study, the development of colitis was examined by assessment of the disease severity and inflammation in the colon of C57BL/6 mice that received DSS. ELISA was used to analyze the levels of pro-inflammatory cytokines in serum, colon, spleen and supernatant of cultured splenocytes...
May 7, 2018: International Immunopharmacology
https://www.readbyqxmd.com/read/29745777/current-experimental-and-future-treatments-in-inflammatory-bowel-disease-a-clinical-review
#11
Christian L Hvas, Mia Bendix, Anders Dige, Jens F Dahlerup, Jørgen Agnholt
Inflammatory bowel diseases (IBDs) may result from dysregulated mucosal immune responses directed toward the resident intestinal microbiota. This review describes the hallmark immunobiology of Crohn's disease and ulcerative colitis as well as therapeutic targets and mechanisms of action for current, experimental, and future treatments in IBD. Conventional therapies include 5-aminosalicylic acid, glucocorticosteroids, thiopurines, and methotrexate. Since 1997, monoclonal antibodies have gained widespread use...
May 10, 2018: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/29736839/stricturing-and-fistulizing-crohn-s-disease-is-associated-with-anti-tumor-necrosis-factor-induced-psoriasis-in-patients-with-inflammatory-bowel-disease
#12
Adam V Weizman, Robyn Sharma, N M Afzal, Wei Xu, Scott Walsh, Joanne M Stempak, Geoffrey C Nguyen, Ken Croitoru, A Hillary Steinhart, Mark S Silverberg
BACKGROUND: Paradoxical development of psoriasis in patients on anti-TNF agents has been increasingly reported. AIM: The aim was to characterize the prevalence and clinical characteristics of anti-TNF-associated psoriasis in a large cohort of inflammatory bowel disease patients. METHODS: Medical records of patients with Crohn's disease or ulcerative colitis treated with anti-TNF therapy at a single, tertiary IBD center were identified between 2004 and 2016...
May 8, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29736689/protective-effects-of-conventional-and-colon-targeted-lycopene-and-linalool-on-ulcerative-colitis-induced-by-acetic-acid-in-rats
#13
İbrahim Ozan Tekeli, Ahmet Ateşşahin, Fatih Sakin, Abdullah Aslan, Songül Çeribaşı, Mustafa Yipel
OBJECTIVE: To compare the potential protective effects of conventional and colon-targeted lycopene (TLC) and linalool (TLN) on acetic acid (AA)-induced ulcerative colitis (UC) in rats. METHODS: Conventional and colon-targeted LC (10 mg/kg) and LN (200 mg/kg) were administered in vivo orally for 7 days and sulfasalazine (100 mg/kg) was also used as reference drug. Then, 4% AA was administered intrarectally to induce UC. Subsequently, the colon tissues were taken as samples for biochemical and histopathological analysis...
May 7, 2018: Inflammopharmacology
https://www.readbyqxmd.com/read/29727864/preventive-effects-of-an-uplc-dad-ms-ms-fingerprinted-hydroalcoholic-extract-of-citrus-aurantium-in-a-mouse-model-of-ulcerative-colitis
#14
Youn-Hwan Hwang, Jin Yeul Ma
Although traditionally used to improve indigestion, diarrhea, dysentery, and constipation, the therapeutic effects of Citrus aurantium on intestinal inflammation remain unclear. The aim of this study was to evaluate the beneficial effects and to identify the active components of a hydroalcoholic extract of C. aurantium (HECA) on ulcerative colitis. HECA was prepared with 70% ethanol solution in water and extracted at 37 °C for 12 h in triplicate, filtered through a sieve, and lyophilized. Phytochemical identification of HECA was performed by ultra-performance liquid chromatography-diode array detector-tandem mass spectrometry (UPLC-DAD-MS/MS)...
May 4, 2018: Planta Medica
https://www.readbyqxmd.com/read/29719998/biologics-and-immunomodulators-for-treating-crohn-s-disease-developing-after-surgery-for-an-initial-diagnosis-of-ulcerative-colitis-a-review-of-current-literature
#15
Abhijeet Yadav, Joshua Foromera, Kenneth R Falchuk, Joseph D Feuerstein
Crohn's Disease (CD) or CD-like (CDL) conditions of the pouch are rare long-term inflammatory complications of patients who were initially diagnosed with ulcerative colitis (UC) who undergo total proctocolectomy with ileo-anal anastomosis (IPAA). There are no societal guidelines nor a consensus on their treatment, resulting in significant challenges for clinicians for their diagnosis and management. It is important to differentiate them from other more common pouch-related complications like pouchitis, cuffitis, irritable pouch syndrome, surgery associated stricture, and fistula...
May 2, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29718226/genetic-markers-predict-primary-nonresponse-and-durable-response-to-anti-tumor-necrosis-factor-therapy-in-ulcerative-colitis
#16
Kristin E Burke, Hamed Khalili, John J Garber, Talin Haritunians, Dermot P B McGovern, Ramnik J Xavier, Ashwin N Ananthakrishnan
Background: Despite a high nonresponse rate, predictors of response to anti-tumor necrosis factor (anti-TNF) therapy in ulcerative colitis (UC) remain limited. We aim to determine clinical and genetic predictors of primary nonresponse (PNR) and durable response (DR) to anti-TNF therapy in a large prospective UC cohort. Methods: Using the Illumina Immunochip, candidate polymorphisms associated with clinical outcomes of PNR and DR were separately evaluated and combined into weighted genetic risk scores...
April 30, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29713130/mucosa-repair-mechanisms-of-tong-xie-yao-fang-mediated-by-crh-r2-in-murine-dextran-sulfate-sodium-induced-colitis
#17
Shan-Shan Gong, Yi-Hong Fan, Shi-Yi Wang, Qing-Qing Han, Bin Lv, Yi Xu, Xi Chen, Yao-Er He
AIM: To explore the significance of corticotropin-releasing hormone (CRH)-receptor (R)2 in mucosal healing of dextran sulfate sodium (DSS)-induced colitis and the effect of Tong-Xie-Yao-Fang (TXYF) on CRH-R2 expression and regulation. METHODS: Ulcerative colitis was induced in mice by administration of 3% (w/v) DSS for 7 d. Once the model was established, mice were administered urocortin-2 (30 μg/kg), a peptide which binds exclusively to CRH-R2, or various doses of aqueous TXYF extracts (2...
April 28, 2018: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29710467/antioxidant-and-anti-inflammatory-effect-of-plumieride-in-dextran-sulfate-sodium-induced-colitis-in-mice
#18
Thaise Boeing, Priscila de Souza, Tiago José Bonomini, Luísa Nathália Bolda Mariano, Lincon Bordignon Somensi, Ruth Meri Lucinda, Angela Malheiros, Luísa Mota da Silva, Sérgio Faloni de Andrade
This study aimed to investigate the potential effect of plumieride, an iridoid glycoside isolated from Alamanda cathartica L. flowers, against dextran sulfate sodium (DSS)-induced colitis in mice. Colitis was induced in female swiss mice by adding DSS 3% to the drinking water. The animals were treated with vehicle (water), 5-aminosalicylic acid (100?mg/kg) or plumieride (10, 30 and 100?mg/kg) once a day, during 7 days. The body weight progression and the disease activity index was evaluated daily. On the eighth day, colons were collected for the measurement of the size, histological, histochemical, biochemical and inflammatory analysis...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29709917/knockout-of-ceramide-kinase-aggravates-pathological-and-lethal-responses-in-mice-with-experimental-colitis
#19
Satomi Suzuki, Ai Tanaka, Hiroyuki Nakamura, Toshihiko Murayama
Sphingolipids and their metabolic enzymes are implicated in ulcerative colitis. Ceramide kinase (CerK) catalyzes the phosphorylation of ceramide to ceramide-1-phosphate (C1P). Previous studies showed the activation of CerK by the pro-inflammatory cytokine interleukin-1β, the C1P-induced up-regulation of prostanoids exerting protective effects against colitis, and the C1P-induced down-regulation of the pro-inflammatory cytokine tumor necrosis factor-α. In order to elucidate CerK/C1P functions in colitis, we examined the severity of dextran sodium sulfate (DSS)-induced colitis in wild-type (WT) and CerK deletion (CerK(-/-) ) mice...
2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29695964/root-extract-of-polygonum-cuspidatum-siebold-zucc-ameliorates-dss-induced-ulcerative-colitis-by-affecting-nf-kappab-signaling-pathway-in-a-mouse-model-via-synergistic-effects-of-polydatin-resveratrol-and-emodin
#20
Baohai Liu, Shuangdi Li, Xiaodan Sui, Lianyi Guo, Xingmei Liu, Hongmei Li, Leming Gao, Shusheng Cai, Yanrong Li, Tingting Wang, Xuehua Piao
Background: Polygonum cuspidatum Siebold & Zucc. (PCS) has antibacterial properties and may prevent Ulcerative colitis (UC) but related molecular mechanism remains unknown. NF-κB signaling pathway is associated with inflammatory responses and its inactivation may be critical for effective therapy of UC. Methods: UC mouse (C57BL/6J) model was established by using dextran sulfate sodium (DSS). The extract of PCS (PCSE) was prepared by using ethanol and its main ingredients were measured by HPLC. Thirty-two UC mice were evenly assigned into DG (received vehicle control), LG (0...
2018: Frontiers in Pharmacology
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