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inflammatory bowel disease AND neutrophils

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https://www.readbyqxmd.com/read/28089357/localization-of-toll-like-receptor-tlr-2-and-tlr4-mrna-in-the-colorectal-mucosa-of-miniature-dachshunds-with-inflammatory-colorectal-polyps
#1
N Yokoyama, H Ohta, J Yamazaki, Y Kagawa, O Ichii, N Khoirun, T Morita, T Osuga, S Y Lim, N Sasaki, K Morishita, K Nakamura, M Takiguchi
Inflammatory colorectal polyps (ICRPs) are characterized by the formation of multiple or solitary polyps with marked neutrophil infiltration in the colorectal area, and are speculated to be a novel form of breed-specific canine idiopathic inflammatory bowel disease (IBD). In human IBD, toll-like receptor (TLR) 2 and TLR4 have been reported to be involved in the pathogenesis of the disease. The aim of this study was to evaluate the expression of TLR2 and TLR4 mRNA in the colorectal mucosa of dogs with ICRPs by in-situ hybridization using an RNAscope assay...
January 12, 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28069287/feline-cholangitis
#2
REVIEW
Lara Boland, Julia Beatty
Cholangitis is common in felines, including neutrophilic, lymphocytic, and chronic cholangitis (liver fluke). History, physical examination, laboratory testing, and abdominal ultrasound support a diagnosis. Diagnosis using hepatic histopathology and/or bile analysis is ideal but not always practical. Neutrophilic cholangitis is associated with bacterial cholecystitis, pancreatitis, and inflammatory bowel disease. The typical presentation is a short illness with lethargy, inappetence, pyrexia, and jaundice. Lymphocytic cholangitis, suspected to be immune-mediated, can have a prolonged clinical course with weight loss and ascites as the predominant features...
January 6, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28002536/a-case-of-sweet-s-syndrome-associated-with-uveitis-in-a-young-male-with-ulcerative-colitis
#3
Ligia Ariana Bancu, Corina Ureche, Nicoleta Maria Crăciun, Dorin Marian
Sweet's syndrome is rare acute febrile neutrophilic dermatosis whose onset is either idiopathic or associated with other underlying conditions, such as infections, autoimmune diseases, pregnancy, use of certain medications, or malignancy. We report the case of a young male with known history of ulcerative colitis and abrupt onset of high fever, malaise, blurred vision and eruption of painful erythematous nodules and papules, localized on the head, neck, trunk and upper limbs. Ophthalmological examination established the diagnosis of anterior uveitis...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28000302/pd-1-inhibitor-gastroenterocolitis-case-series-and-appraisal-of-immunomodulatory-gastroenterocolitis
#4
Raul S Gonzalez, Safia N Salaria, Caitlin D Bohannon, Aaron R Huber, Michael M Feely, Chanjuan Shi
AIMS: PD-1 inhibitors facilitate immune response against certain tumour types, including melanoma. These drugs have led to prolonged survival but can also result in autoimmune-type side effects, including gastrointestinal inflammation. The histopathological effects of this medication class have not been well studied. METHODS AND RESULTS: We identified 37 gastrointestinal tract biopsies from 20 patients taking a PD-1 or PD-L1 inhibitor and evaluated clinicopathological findings...
November 7, 2016: Histopathology
https://www.readbyqxmd.com/read/27999328/the-dual-role-of-neutrophils-in-inflammatory-bowel-diseases
#5
REVIEW
Odile Wéra, Patrizio Lancellotti, Cécile Oury
Inflammatory bowel diseases (IBD), including Crohn's disease and ulcerative colitis, are characterised by aberrant immunological responses leading to chronic inflammation without tissue regeneration. These two diseases are considered distinct entities, and there is some evidence that neutrophil behaviour, above all other aspects of immunity, clearly separate them. Neutrophils are the first immune cells recruited to the site of inflammation, and their action is crucial to limit invasion by microorganisms. Furthermore, they play an essential role in proper resolution of inflammation...
December 17, 2016: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/27943240/autoinflammation-in-pyoderma-gangrenosum-and-its-syndromic-form-pash
#6
A Marzano, G Damiani, I Ceccherini, E Berti, M Gattorno, M Cugno
BACKGROUND: Pyoderma gangrenosum (PG) is a rare skin disease characterized clinically by ulcers with undermined borders, and histologically by neutrophil-rich infitrates. PG may occur alone, in syndromic forms or associated with systemic diseases as inflammatory bowel diseases and hematological or rheumatological disorders. OBJECTIVES: Although some autoinflammatory diseases present with PG, to date, a specific genetic background related to autoinflammation has not been proven for PG...
December 10, 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27942903/downregulation-of-cx3cr1-ameliorates-experimental-colitis-evidence-for-cx3cl1-cx3cr1-mediated-immune-cell-recruitment
#7
Felix Becker, Christina Holthoff, Christoph Anthoni, Emile Rijcken, J Steven Alexander, Felicity N E Gavins, H U Spiegel, Norbert Senninger, Thorsten Vowinkel
PURPOSE: Inflammatory conditions like inflammatory bowel diseases (IBD) are characterized by increased immune cell infiltration. The chemokine ligand CX3CL1 and its receptor CX3CR1 have been shown to be involved in leukocyte adhesion, transendothelial recruitment, and chemotaxis. Therefore, the objective of this study was to describe CX3CL1-CX3CR1-mediated signaling in the induction of immune cell recruitment during experimental murine colitis. METHODS: Acute colitis was induced by dextran sodium sulfate (DSS), and sepsis was induced by injection of lipopolysaccharide (LPS)...
December 10, 2016: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/27939424/enhanced-mucosal-defense-and-reduced-tumor-burden-in-mice-with-the-compromised-negative-regulator-irak-m
#8
Daniel E Rothschild, Yao Zhang, Na Diao, Christina K Lee, Keqiang Chen, Clayton C Caswell, Daniel J Slade, Richard F Helm, Tanya LeRoith, Liwu Li, Irving C Allen
Aberrant inflammation is a hallmark of inflammatory bowel disease (IBD) and colorectal cancer. IRAK-M is a critical negative regulator of TLR signaling and overzealous inflammation. Here we utilize data from human studies and Irak-m(-/-) mice to elucidate the role of IRAK-M in the modulation of gastrointestinal immune system homeostasis. In human patients, IRAK-M expression is up-regulated during IBD and colorectal cancer. Further functional studies in mice revealed that Irak-m(-/-) animals are protected against colitis and colitis associated tumorigenesis...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/27938816/acral-manifestations-of-sweet-syndrome-neutrophilic-dermatosis-of-the-hands
#9
Ronni Wolf, Yalçın Tüzün
Neutrophilic dermatosis of the hand (NDH) is a rare localized variant of the syndrome, originally described two decades ago by Strutton et al. The lesions of NDH and Sweet syndrome are similar, as indicated in the first report of NDH. Both diagnoses are characterized by an acute onset of fever, leukocytosis, and tender, erythematous infiltrated plaques. There are also bullae and ulceration in NDH, in contrast to Sweet syndrome, in which bullae are quite uncommon, especially at the early stages. Similar to Sweet syndrome, the majority of NDH patients are women (69%)...
January 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/27921374/efficacy-of-a-novel-granulocyte-monocyte-apheresis-adsorber-device-in-the-treatment-of-inflammatory-bowel-diseases-a-pilot-study
#10
Maria Di Girolamo, Alessandro Sartini, Rosina Critelli, Angela Bertani, Alberto Merighi, Erica Villa
Granulocyte monocyte apheresis (GMA) is a non-pharmacological treatment for inflammatory bowel disease. In our study, we tested a novel GMA adsorber device in terms of clinical efficacy and safety in patients' non-response to pharmacological therapy. Secondary outcomes were the evaluation of adsorber's technical performance, the reduction of inflammatory markers and the improvement of patients' life quality. The prospective study included 18 patients enrolled from 2011 to 2012 with a monitoring of 48 weeks...
December 2016: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/27902604/the-use-of-delta-neutrophil-index-and-myeloperoxidase-index-as-diagnostic-predictors-of-strangulated-mechanical-bowel-obstruction-in-the-emergency-department
#11
Yong Sung Cha, Kang Hyun Lee, Jong Wook Lee, Eun Hee Choi, Hyung Il Kim, Oh Hyun Kim, Kyoung Chul Cha, Hyun Kim, Sung Oh Hwang
Early detection of bowel strangulation is difficult in patients with mechanical bowel obstruction (MBO). There have been no previous reports of predicting strangulation in MBO cases using the delta neutrophil index (DNI), which is a measure of the proportion of circulating immature granulocytes, or the myeloperoxidase index (MPXI), which is a measure of serum myeloperoxidase level. Therefore, we evaluated differences in initial DNI and MPXI upon presentation at the emergency department (ED) according to strangulation presence in MBO patients...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27894441/nonclassic-inflammatory-bowel-disease-in-young-infants-immune-dysregulation-polyendocrinopathy-enteropathy-x-linked-syndrome-and-other-disorders
#12
REVIEW
Shanmuganathan Chandrakasan, Suresh Venkateswaran, Subra Kugathasan
This article discusses non-classical forms of inflammatory bowel disease (IBD) mainly occurs in infants and very young children. Defects in every aspect of the immune system, such as neutrophils, T-cell and B-cell lymphocytes, and macrophages are associated with IBD in infants. Also, non lympho-hematopoietic defects with primary defects in enterocytes can also lead to IBD-like manifestations. Clinical vignettes are presented and the genetic origins and possible management strategies are outlined. Early evaluation of these patients is important because identification of underlying immune defects would facilitate the use of better-targeted therapy for the specific genetic defect...
February 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/27894344/siropins-novel-serine-protease-inhibitors-from-gut-microbiota-acting-on-human-proteases-involved-in-inflammatory-bowel-diseases
#13
Héla Mkaouar, Nizar Akermi, Vincent Mariaule, Samira Boudebbouze, Nadia Gaci, Florette Szukala, Nicolas Pons, Josan Marquez, Ali Gargouri, Emmanuelle Maguin, Moez Rhimi
BACKGROUND: In eukaryotes, the serpins constitute a wide family of protease inhibitors regulating many physiological pathways. Many reports stressed the key role of serpins in several human physiopathologies including mainly the inflammatory bowel diseases. In this context, eukaryotic serpins were largely studied and their use to limit inflammation was reported. In comparison to that, bacterial serpins and mainly those from human gut microbiota remain poorly studied. RESULTS: The two genes encoding for putative serpins from the human gut bacterium Eubacterium sireaum, display low sequence identities...
November 29, 2016: Microbial Cell Factories
https://www.readbyqxmd.com/read/27887202/serological-markers-in-diagnosis-of-pediatric-inflammatory-bowel-disease-and-as-predictors-for-early-tumor-necrosis-factor-blocker-therapy
#14
Christine Olbjørn, Milada Cvancarova Småstuen, Espen Thiis-Evensen, Britt Nakstad, Morten Harald Vatn, Gøri Perminow
OBJECTIVE: To describe the prevalence of serological markers in newly diagnosed treatment-naïve pediatric inflammatory bowel disease (IBD), their utility in differentiating Crohn's disease (CD), ulcerative colitis (UC) and symptomatic non-IBD patients and whether serological markers are associated with early TNF blocker treatment. MATERIAL AND METHODS: Ninety-six children and adolescents <18 years, 58 with IBD and 38 symptomatic non-IBD controls were included...
November 25, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/27885812/a-whole-animal-chemical-screen-approach-to-identify-modifiers-of-intestinal-neutrophilic-inflammation
#15
Stefan H Oehlers, Maria Vega Flores, Christopher J Hall, Liuyang Wang, Dennis C Ko, Kathryn E Crosier, Philip S Crosier
By performing two high-content small molecule screens on DSS- and TNBS-induced zebrafish enterocolitis models of inflammatory bowel disease, we have identified novel anti-inflammatory drugs from the John Hopkins Clinical Compound Library that suppress neutrophilic inflammation. Live imaging of neutrophil distribution was used to assess the level of acute inflammation and concurrently screen for off-target drug effects. Supporting the validity of our screening strategy, most of the anti-inflammatory drug hits were known antibiotics or anti-inflammatory agents...
November 25, 2016: FEBS Journal
https://www.readbyqxmd.com/read/27877040/intestinal-anti-inflammatory-effects-of-rgd-functionalized-silk-fibroin-nanoparticles-in-trinitrobenzenesulfonic-acid-induced-experimental-colitis-in-rats
#16
Alba Rodriguez-Nogales, Francesca Algieri, Laura De Matteis, A Abel Lozano-Perez, Jose Garrido-Mesa, Teresa Vezza, J M de la Fuente, Jose Luis Cenis, Julio Gálvez, Maria Elena Rodriguez-Cabezas
BACKGROUND: Current treatment of inflammatory bowel disease is based on the use of immunosuppressants or anti-inflammatory drugs, which are characterized by important side effects that can limit their use. Previous research has been performed by administering these drugs as nanoparticles that target the ulcerated intestinal regions and increase their bioavailability. It has been reported that silk fibroin can act as a drug carrier and shows anti-inflammatory properties. PURPOSE: This study was designed to enhance the interaction of the silk fibroin nanoparticles (SFNs) with the injured intestinal tissue by functionalizing them with the peptide motif RGD (arginine-glycine-aspartic acid) and to evaluate the intestinal anti-inflammatory properties of these RGD-functionalized silk fibroin nanoparticles (RGD-SFNs) in the trinitrobenzenesulfonic acid (TNBS) model of rat colitis...
2016: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/27866974/sphingolipids-in-neutrophil-function-and-inflammatory-responses-mechanisms-and-implications-for-intestinal-immunity-and-inflammation-in-ulcerative-colitis
#17
REVIEW
Mel Pilar Espaillat, Richard R Kew, Lina M Obeid
Bioactive sphingolipids are regulators of immune cell function and play critical roles in inflammatory conditions including ulcerative colitis. As one of the major forms of inflammatory bowel disease, ulcerative colitis pathophysiology is characterized by an aberrant intestinal inflammatory response that persists causing chronic inflammation and tissue injury. Innate immune cells play an integral role in normal intestinal homeostasis but their dysregulation is thought to contribute to the pathogenesis of ulcerative colitis...
November 14, 2016: Advances in Biological Regulation
https://www.readbyqxmd.com/read/27863347/preventive-effects-of-goji-berry-on-dextran-sulfate-sodium-induced-colitis-in-mice
#18
Yifei Kang, Yansong Xue, Min Du, Mei-Jun Zhu
Goji berry (Lycium barbarum) exerts immune modulation and suppresses inflammation in vitro and in vivo. We hypothesized that Goji berry had beneficial effects on dextran sulfate sodium (DSS)-induced colitis in C57BL/6 mice through suppressing inflammation. Six-week-old male C57BL/6 mice were supplemented with a standard AIN-93G diet with or without 1% (w/w) Goji berry for 4 weeks. Then, colitis was induced by supplementing 3% DSS in drinking water for 7 days, followed by 7 days of remission period to mimic ulcerative colitis symptoms...
October 27, 2016: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/27831916/retrospective-evaluation-of-the-clinical-utility-of-serological-biomarkers-in-chinese-patients-with-inflammatory-bowel-disease-2-year-clinical-experience
#19
Shulan Zhang, Jing Luo, Ji Li, Ziyan Wu, Chaojun Hu, Ping Li, Chuiwen Deng, Fengchun Zhang, Jiaming Qian, Yongzhe Li
BACKGROUND: Antibodies to saccharomyces cerevisiae (ASCA), antibodies to perinuclear anti-neutrophil cytoplasmic (pANCA), pancreatic autoantibodies (PAB) and antibodies against intestinal goblet cells (GAB) are important in diagnosing Crohn's disease (CD) and ulcerative colitis (UC). However, little is known about their diagnostic value in real clinical practice in China. This retrospective study aimed to present our 2-year clinical experience with those biomarkers in diagnosis of CD and UC...
November 10, 2016: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/27826220/chitinase-3-like-1-is-produced-by-human-th17-cells-and-correlates-with-the-level-of-inflammation-in-juvenile-idiopathic-arthritis-patients
#20
Manuela Capone, Laura Maggi, Veronica Santarlasci, Maria Caterina Rossi, Alessio Mazzoni, Gianni Montaini, Rolando Cimaz, Matteo Ramazzotti, Marie Pierre Piccinni, Giusi Barra, Raffaele De Palma, Francesco Liotta, Enrico Maggi, Sergio Romagnani, Francesco Annunziato, Lorenzo Cosmi
BACKGROUND: CHI3L1 is a chitinase-like protein without enzymatic activity, produced by activated macrophages, chondrocytes, neutrophils. Recent studies on arthritis, asthma, and inflammatory bowel diseases suggest that chitinases are important in inflammatory processes and tissue remodeling, but their production by human T cells, has never been reported. METHODS: A microarray analysis of gene expression profile was performed on Th17 and classic Th1 cell clones and CHI3L1 was found among the up-regulated genes on Th17 cells...
2016: Clinical and Molecular Allergy: CMA
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