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https://www.readbyqxmd.com/read/28212158/an-integrated-understanding-of-the-immunology-of-allograft-inflammation
#1
Brenna Houlihan, Priscilla Cha, Michael Zasloff, Thomas M Fishbein, Alexander Kroemer
PURPOSE OF REVIEW: The purpose of this review is to summarize recent advances in our understanding of the complex immunology of intestinal transplantation and allograft rejection. RECENT FINDINGS: Recent findings highlight the importance of the intestinal microbiome for intestinal homeostasis and the role of newly discovered innate lymphoid cells in intestinal transplantation. In addition, the role of host antimicrobial Th17 responses in the pathogenesis of inflammatory bowel diseases and intestinal allograft rejection has been further elucidated...
February 15, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28210767/crohn-s-disease-diagnosis-treatment-approach-and-management-paradigm-what-the-radiologist-needs-to-know
#2
Parakkal Deepak, Sang Hyoung Park, Eric C Ehman, Stephanie L Hansel, Jeff L Fidler, David H Bruining, Joel G Fletcher
Crohn's disease is one of the major subtypes of idiopathic inflammatory bowel disease and is characterized by chronic transmural intestinal inflammation of the gastrointestinal tract anywhere from mouth to the anus, with a predilection for the small bowel. Cross-sectional imaging with computed tomography and magnetic resonance enterography plays a key role in confirming diagnosis, identifying and managing complications, assessing disease severity, and identifying response to medical therapy. This review will focus on the role of radiologists in the diagnosis and assessment of Crohn's disease...
February 16, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28198622/a-cell-penetrant-manganese-superoxide-dismutase-mnsod-mimic-is-able-to-complement-mnsod-and-exerts-an-antiinflammatory-effect-on-cellular-and-animal-models-of-inflammatory-bowel-diseases
#3
Emilie Mathieu, Anne-Sophie Bernard, Nicolas Delsuc, Elodie Quévrain, Géraldine Gazzah, Barry Lai, Florian Chain, Philippe Langella, Maria Bachelet, Joelle Masliah, Philippe Seksik, Clotilde Policar
Inorganic complexes are increasingly used for biological and medicinal applications, and the question of the cell penetration and distribution of metallodrugs is key to understanding their biological activity. Oxidative stress is known to be involved in inflammation and in inflammatory bowel diseases for which antioxidative defenses are weakened. We report here the study of the manganese complex Mn1 mimicking superoxide dismutase (SOD), a protein involved in cell protection against oxidative stress, using an approach in inorganic cellular chemistry combining the investigation of Mn1 intracellular speciation using mass spectrometry and of its quantification and distribution using electron paramagnetic resonance and spatially resolved X-ray fluorescence with evaluation of its biological activity...
February 15, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28198364/interleukin-22-drives-nitric-oxide-dependent-dna-damage-and-dysplasia-in-a-murine-model-of-colitis-associated-cancer
#4
C Wang, G Gong, A Sheh, S Muthupalani, E M Bryant, D A Puglisi, H Holcombe, E A Conaway, N A P Parry, V Bakthavatchalu, S P Short, C S Williams, G N Wogan, S R Tannenbaum, J G Fox, B H Horwitz
The risk of colon cancer is increased in patients with Crohn's disease and ulcerative colitis. Inflammation-induced DNA damage could be an important link between inflammation and cancer, although the pathways that link inflammation and DNA damage are incompletely defined. RAG2-deficient mice infected with Helicobacter hepaticus (Hh) develop colitis that progresses to lower bowel cancer. This process depends on nitric oxide (NO), a molecule with known mutagenic potential. We have previously hypothesized that production of NO by macrophages could be essential for Hh-driven carcinogenesis, however, whether Hh infection induces DNA damage in this model and whether this depends on NO has not been determined...
February 15, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28197336/embracing-the-gut-microbiota-the-new-frontier-for-inflammatory-and-infectious-diseases
#5
REVIEW
Lieke Wj van den Elsen, Hazel C Poyntz, Laura S Weyrich, Wayne Young, Elizabeth E Forbes-Blom
The gut microbiota provides essential signals for the development and appropriate function of the immune system. Through this critical contribution to immune fitness, the gut microbiota has a key role in health and disease. Recent advances in the technological applications to study microbial communities and their functions have contributed to a rapid increase in host-microbiota research. Although it still remains difficult to define a so-called 'normal' or 'healthy' microbial composition, alterations in the gut microbiota have been shown to influence the susceptibility of the host to different diseases...
January 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28194152/hsp65-producing-lactococcus-lactis-prevents-inflammatory-intestinal-disease-in-mice-by-il-10-and-tlr2-dependent-pathways
#6
Ana Cristina Gomes-Santos, Rafael Pires de Oliveira, Thaís Garcias Moreira, Archimedes Barbosa Castro-Junior, Bernardo Coelho Horta, Luísa Lemos, Leonardo Augusto de Almeida, Rafael Machado Rezende, Denise Carmona Cara, Sérgio Costa Oliveira, Vasco Ariston Carvalho Azevedo, Anderson Miyoshi, Ana Maria Caetano Faria
Heat shock proteins (Hsps) are highly expressed at all sites of inflammation. As they are ubiquitous and immunodominant antigens, these molecules represent good candidates for the therapeutic use of oral tolerance in autoimmune and chronic inflammatory diseases. Evidences from human and animal studies indicate that inflammatory bowel disease (IBD) results from uncontrolled inflammatory responses to intestinal microbiota. Hsps are immunodominant proteins expressed by several immune cells and by commensal bacteria...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28194046/morinda-citrifolia-noni-fruit-juice-reduces-inflammatory-cytokines-expression-and-contributes-to-the-maintenance-of-intestinal-mucosal-integrity-in-dss-experimental-colitis
#7
Beatriz Coutinho de Sousa, Juliana Reis Machado, Marcos Vinicius da Silva, Thiago Alvares da Costa, Javier Emilio Lazo-Chica, Thatiane do Prado Degasperi, Virmondes Rodrigues Junior, Helioswilton Sales-Campos, Elizabeth Uber Bucek, Carlo José Freire Oliveira
Morinda citrifolia L. (noni) has been shown to treat different disorders. However, data concerning its role in the treatment of intestinal inflammation still require clarification. In the current study, we investigated the effects of noni fruit juice (NFJ) in the treatment of C57BL/6 mice, which were continuously exposed to dextran sulfate sodium (DSS) for 9 consecutive days. NFJ consumption had no impact on the reduction of the clinical signs of the disease or on weight loss. Nonetheless, when a dilution of 1 : 10 was used, the intestinal architecture of the mice was preserved, accompanied by a reduction in the inflammatory infiltrate...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28193514/microrna-301a-promotes-intestinal-inflammation-and-colitis-associated-cancer-development-by-inhibiting-btg1
#8
Chong He, Tianming Yu, Yan Shi, Caiyun Ma, Wenjing Yang, Leilei Fang, Mingming Sun, Wei Wu, Fei Xiao, Feifan Guo, Minhu Chen, Hong Yang, Jiaming Qian, Yingzi Cong, Zhanju Liu
BACKGROUND & AIMS: Intestinal tissues from patients with inflammatory bowel disease (IBD) and colorectal cancer have increased expression of microRNA-301a (MIR301A), compared to tissues from patients without IBD. We studied the mechanisms of MIR301A in progression of IBD in human tissues and mice. METHODS: We isolated intestinal epithelial cells (IECs) from colon biopsy samples of 153 patients with different stages of IBD activity, 6 patients with colitis-associated cancer (CAC), and 35 healthy individuals (controls), enrolled in the study in Shanghai, China...
February 10, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28193209/secretion-of-biologically-active-pancreatitis-associated-protein-i-pap-by-genetically-modified-dairy-lactococcus-lactis-nz9000-in-the-prevention-of-intestinal-mucositis
#9
Rodrigo D Carvalho, Natalia Breyner, Zelia Menezes-Garcia, Nubia M Rodrigues, Luisa Lemos, Tatiane U Maioli, Danielle da Gloria Souza, Denise Carmona, Ana M C de Faria, Philippe Langella, Jean-Marc Chatel, Luis G Bermúdez-Humarán, Henrique C P Figueiredo, Vasco Azevedo, Marcela S de Azevedo
BACKGROUND: Mucositis is one of the most relevant gastrointestinal inflammatory conditions in humans, generated by the use of chemotherapy drugs, such as 5-fluoracil (5-FU). 5-FU-induced mucositis affects 80% of patients undergoing oncological treatment causing mucosal gut dysfunctions and great discomfort. As current therapy drugs presents limitations in alleviating mucositis symptoms, alternative strategies are being pursued. Recent studies have shown that the antimicrobial pancreatitis-associated protein (PAP) has a protective role in intestinal inflammatory processes...
February 13, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28192146/autoimmune-and-inflammatory-manifestations-occur-frequently-in-primary-immunodeficiencies
#10
Alain Fischer, Johan Provot, Jean-Philippe Jais, Alexandre Alcais, Nizar Mahlaoui
BACKGROUND: Primary immunodeficiencies (PIDs) are inherited diseases associated with a considerably increase in susceptibility to infections. It is known that PIDs can also predispose to cancer and immune diseases including allergy, autoimmunity and inflammation. OBJECTIVE: We aimed at determining the incidence of autoimmunity and inflammation in PID patients. METHODS: We have retrospectively screen 2183 consecutive cases of PID in the French CEREDIH registry for the occurrence of autoimmunity and inflammation...
February 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28191884/dynamics-of-the-human-gut-microbiome-in-inflammatory-bowel-disease
#11
Jonas Halfvarson, Colin J Brislawn, Regina Lamendella, Yoshiki Vázquez-Baeza, William A Walters, Lisa M Bramer, Mauro D'Amato, Ferdinando Bonfiglio, Daniel McDonald, Antonio Gonzalez, Erin E McClure, Mitchell F Dunklebarger, Rob Knight, Janet K Jansson
Inflammatory bowel disease (IBD) is characterized by flares of inflammation with a periodic need for increased medication and sometimes even surgery. The aetiology of IBD is partly attributed to a deregulated immune response to gut microbiome dysbiosis. Cross-sectional studies have revealed microbial signatures for different IBD subtypes, including ulcerative colitis, colonic Crohn's disease and ileal Crohn's disease. Although IBD is dynamic, microbiome studies have primarily focused on single time points or a few individuals...
February 13, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28191024/recent-trends-in-pharmacological-activity-of-alkaloids-in-animal-colitis-potential-use-for-inflammatory-bowel-disease
#12
REVIEW
Ana Cristina Alves de Almeida, Felipe Meira de-Faria, Ricardo José Dunder, Luis Paulo Bognoni Manzo, Alba Regina Monteiro Souza-Brito, Anderson Luiz-Ferreira
Inflammatory bowel disease (IBD) is a chronic and disrupted inflammation of the gastrointestinal tract. IBD have two main conditions, Crohn's disease and ulcerative colitis, and have been extensively investigated in recent years. Antibiotics derived from salicylates, steroids, immunosuppressors, and anti-TNF therapy are part of the therapeutic arsenal for IBD. However, very often patients stop responding to treatments over the time. In this context, searching for alternative agents is crucial for IBD clinical management...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28189042/activity-of-inflammatory-bowel-disease-influences-the-expression-of-cytokines-in-gingival-tissue
#13
C M Figueredo, A P Martins, R Lira-Junior, J B Menegat, A T Carvalho, R G Fischer, A Gustafsson
This study assessed the cytokine expression in gingival and intestinal tissues from periodontitis patients with inflammatory bowel disease (IBD) and evaluated if IBD activity is a covariate to the amount of gingival cytokines. Paired gingival and intestinal tissues were collected from 21 patients and homogenised using a cell disruptor. Cytokine expression (IL-1β, IL-4, IL-6, IL-10, IL-21, IL-22, IL-23, IL-25, IL-31, IL-33, IL-17A, IL-17F, IFN-γ, sCD40L, and TNF-α) was evaluated using bead-based multiplex technology...
February 8, 2017: Cytokine
https://www.readbyqxmd.com/read/28185763/bariatric-surgery-attenuates-colitis-in-an-obese-murine-model
#14
Shiri Li, Alessio Vinci, Judith Behnsen, Chunmei Cheng, Stefan Jellbauer, Manuela Raffatellu, Kyle M Sousa, Robert Edwards, Ninh T Nguyen, Michael J Stamos, Alessio Pigazzi
BACKGROUND: Obesity and inflammatory bowel disease (IBD) represent chronic inflammatory conditions. Bariatric surgery improves some obesity-related co-morbidities, but the effects of bariatric surgery on IBD have not been well studied. OBJECTIVES: To examine if bariatric surgery may attenuate colitis in an obese murine model of IBD and study the mechanisms underlying the postsurgical amelioration of intestinal inflammation. SETTING: University of California Irvine, Department of Surgery and Microbiology laboratories...
December 20, 2016: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
https://www.readbyqxmd.com/read/28183265/some-important-dietary-polyphenolic-compounds-an-anti-inflammatory-and-immunoregulatory-perspective
#15
Mayank Kinger, Sushil Kumar, Vinod Kumar
Inflammation plays an important role in maintaining the body's homeostasis. It repairs the damaged tissues of the body resulting from injury or infection. In addition, a diverse array of diseases like hepatitis, arthritis and colitis has been reported and described to be associated with inflammatory processes. Some autoimmune diseases like inflammatory bowel disease (IBD) emerge by the influence of numerous genes in complex environmental situations belongs to inflammation. The currently available processes for curing inflammation and related disorders facilitate the use of non steroidal anti-inflammatory drugs (NSAIDs)...
February 8, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28182340/evaluation-of-ischemia-modified-albumin-in-patients-with-inflammatory-bowel-disease
#16
Gulcan Guntas, Abdurrahman Sahin, Sermin Duran, Resul Kahraman, Ilyas Duran, Cigdem Sonmez, Turhan Calhan, Haci Mehmet Sokmen
BACKGROUND: Inflammatory bowel disease (IBD) is considered a chronic gastrointestinal inflammatory disease with unknown etiology. Oxidative stress has been demonstrated to play a critical role in the pathophysiology of IBD. We aimed to investigate the effect of the ischemia-modified albumin (IMA) and CRP levels on the pathophysiology and activities of IBD and its subgroups. METHODS: The study included 39 patients with Crohn's disease (CD) and 41 patients with ulcerative colitis (UC)...
February 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/28180127/impact-of-fecal-calprotectin-measurement-on-decision-making-in-children-with-inflammatory-bowel-disease
#17
Wael El-Matary, Esmail Abej, Vini Deora, Harminder Singh, Charles N Bernstein
BACKGROUND: The use of fecal calprotectin (FCal) as a marker of intestinal inflammation, in the management of inflammatory bowel disease (IBD) is increasing. The aim of this study was to examine the impact of FCal measurements on decision-making and clinical care of children with IBD. MATERIALS AND METHODS: In a retrospective cohort study, FCal, clinical activity indices, and blood markers were measured in children with established diagnoses of IBD. Pearson correlation coefficient analysis was performed to examine association between FCal and other markers...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28179906/canonical-and-non-canonical-activation-of-nlrp3-inflammasome-at-the-crossroad-between-immune-tolerance-and-intestinal-inflammation
#18
REVIEW
Carolina Pellegrini, Luca Antonioli, Gloria Lopez-Castejon, Corrado Blandizzi, Matteo Fornai
Several lines of evidence point out the relevance of nucleotide-binding oligomerization domain leucine rich repeat and pyrin domain-containing protein 3 (NLRP3) inflammasome as a pivotal player in regulating the integrity of intestinal homeostasis and shaping innate immune responses during bowel inflammation. Intensive research efforts are being made to achieve an integrated view about the protective/detrimental role of canonical and non-canonical NLRP3 inflammasome activation in the maintenance of intestinal microenvironment integrity...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28179904/applications-of-genetically-modified-immunobiotics-with-high-immunoregulatory-capacity-for-treatment-of-inflammatory-bowel-diseases
#19
REVIEW
Suguru Shigemori, Takeshi Shimosato
Inflammatory bowel diseases (IBDs), including ulcerative colitis and Crohn's disease, are chronic inflammatory diseases characterized by dysregulated immune responses of the gastrointestinal tract. In recent years, the incidence of IBDs has increased in developed nations, but their prophylaxis/treatment is not yet established. Site-directed delivery of molecules showing anti-inflammatory properties using genetically modified (gm)-probiotics shows promise as a new strategy for the prevention and treatment of IBD...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28179509/iga-coated-e-coli-enriched-in-crohn-s-disease-spondyloarthritis-promote-th17-dependent-inflammation
#20
Monica Viladomiu, Charles Kivolowitz, Ahmed Abdulhamid, Belgin Dogan, Daniel Victorio, Jim G Castellanos, Viola Woo, Fei Teng, Nhan L Tran, Andrew Sczesnak, Christina Chai, Myunghoo Kim, Gretchen E Diehl, Nadim J Ajami, Joseph F Petrosino, Xi K Zhou, Sergio Schwartzman, Lisa A Mandl, Meira Abramowitz, Vinita Jacob, Brian Bosworth, Adam Steinlauf, Ellen J Scherl, Hsin-Jung Joyce Wu, Kenneth W Simpson, Randy S Longman
Peripheral spondyloarthritis (SpA) is a common extraintestinal manifestation in patients with active inflammatory bowel disease (IBD) characterized by inflammatory enthesitis, dactylitis, or synovitis of nonaxial joints. However, a mechanistic understanding of the link between intestinal inflammation and SpA has yet to emerge. We evaluated and functionally characterized the fecal microbiome of IBD patients with or without peripheral SpA. Coupling the sorting of immunoglobulin A (IgA)-coated microbiota with 16S ribosomal RNA-based analysis (IgA-seq) revealed a selective enrichment in IgA-coated Escherichia coli in patients with Crohn's disease-associated SpA (CD-SpA) compared to CD alone...
February 8, 2017: Science Translational Medicine
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