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inflammatory bowel disease AND neutrophils

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https://www.readbyqxmd.com/read/29140405/the-apoptotic-crypt-abscess-an-underappreciated-histologic-finding-in-gastrointestinal-pathology
#1
Geoffrey Talmon, Tristan Manasek, Ross Miller, David Muirhead, Audrey Lazenby
Objectives: To differentiate apoptotic crypt abscesses (ACAs) from neutrophilic crypt abscesses (NCAs). Methods: Cases with crypt abscesses were classified as containing ACAs, NCAs, or mixed crypt abscesses (MCAs) by H&E staining. Sections were stained with cleaved caspase 3 and myeloperoxidase and recategorized. Results: Fifty-nine cases were reviewed: inflammatory bowel disease (IBD; n = 33), acute cellular rejection (n = 5), graft vs host disease (GVHD; n = 14), cytomegalovirus (n = 5), and drug reaction (n = 2)...
November 11, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29137646/the-potential-of-interleukin-37-as-an-effective-therapeutic-agent-in-asthma
#2
REVIEW
Lina Zhang, Jie Zhang, Peng Gao
Interleukin (IL)-37 belongs to the IL-1 cytokine family. It binds to IL-18Rα and recruits the orphan decoy IL-1R8. Emerging evidence shows that IL-37 is a key player in the regulation of inflammation, cellular differentiation, and proliferation. Altered IL-37 expression has been demonstrated in many inflammatory disease conditions, including asthma. In rheumatoid arthritis, IL-37 is involved in the regulation of proliferation, production of inflammatory mediators, and activation of inflammatory cells. Furthermore, this cytokine acts as a negative regulator of inflammation in inflammatory bowel disease...
November 14, 2017: Respiratory Research
https://www.readbyqxmd.com/read/29133754/comparison-of-clinical-features-between-pyoderma-gangrenosum-concomitant-by-inflammatory-bowel-disease-and-idiopathic-pyoderma-gangrenosum
#3
Yan-Yun Jiang, Ji Li, Yue Li, Qiang Wang, Shuang Liu, Kai Fang, Jia-Ming Qian, Hong-Zhong Jin
BACKGROUND: Pyoderma gangrenosum (PG) is a rare neutrophilic dermatosis that is highly associated with inflammatory bowel disease (IBD). Certain PG patients with no systemic disorders have been diagnosed with idiopathic PG. This study sought to clarify the difference between PG with IBD and idiopathic PG based on clinical features, laboratory tests, and medications. METHODS: Twelve patients with PG and IBD and 24 patients with idiopathic PG, who were hospitalized in Peking Union Medical College Hospital from 2000 to 2017, were retrospectively categorized into the IBD group and control group, respectively...
November 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29115397/detection-of-calprotectin-in-inflammatory-bowel-disease-fecal-and-serum-levels-and-immunohistochemical-localization
#4
Shuhei Fukunaga, Kotaro Kuwaki, Keiichi Mitsuyama, Hidetoshi Takedatsu, Shinichiro Yoshioka, Hiroshi Yamasaki, Ryosuke Yamauchi, Atsushi Mori, Tatsuyuki Kakuma, Osamu Tsuruta, Takuji Torimura
The aim of the present study was to quantify calprotectin levels using an enzyme-linked immunosorbent assay (ELISA) and a point-of-care test (POCT) in patients with inflammatory bowel disease. Overall, 113 patients with ulcerative colitis (UC; 51 men and 62 women) and 42 patients with Crohn's disease (CD; 29 men and 13 women), who were scheduled to undergo a colonoscopy, were prospectively enrolled and scored endoscopically and clinically. An additional 96 healthy, age-matched subjects served as the normal controls...
November 7, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29109724/actors-and-factors-in-the-resolution-of-intestinal-inflammation-lipid-mediators-as-a-new-approach-to-therapy-in-inflammatory-bowel-diseases
#5
REVIEW
Federica Ungaro, Federica Rubbino, Silvio Danese, Silvia D'Alessio
In the last few decades, the pathogenesis of inflammatory bowel disease (IBD) in genetically predisposed subjects susceptible to specific environmental factors has been attributed to disturbance of both the immune and non-immune system and/or to the imbalanced interactions with microbes. However, increasing evidences support the idea that defects in pro-resolving pathways might strongly contribute to IBD onset. The resolution of inflammation is now recognized as a dynamic event coordinated by specialized pro-resolving lipid mediators (LMs), which dampen inflammation-sustaining events, such as angiogenesis, release of pro-inflammatory cytokines, clearance of apoptotic cells, and microorganisms...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29091813/dietary-red-raspberries-attenuate-dextran-sulfate-sodium-induced-acute-colitis
#6
Shima Bibi, Yifei Kang, Min Du, Mei-Jun Zhu
Persistent intestinal inflammation severely impairs intestinal integrity resulting in inflammatory bowel disease. Red raspberries (RB) are a rich source of bioactive compounds; their beneficial effect on the colitis protection was evaluated in the current study using a dextran sulfate sodium (DSS)-induced acute colitis mouse model. Six-week-old mice were fed a standard rodent research diet supplemented with RB (0 or 5% w/w, n=20 each group) for 6 weeks. At the 4th week of dietary treatment, approximately half of mice in each dietary group (n=12 each group) were subjected to 2...
September 14, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29079781/therapeutic-efficacy-of-a-combined-sage-and-bitter-apple-phytopharmaceutical-in-chronic-dss-induced-colitis
#7
Maximilian Hoffmann, Ulla Schwertassek, Aleksandra Seydel, Klaus Weber, Sunna Hauschildt, Jörg Lehmann
Inflammatory bowel diseases are multifactorial disorders of the gastrointestinal tract with rising incidence worldwide. Current standard therapies are only partially effective and often show severe adverse effects. Thus, novel, more efficient and well-tolerated therapeutic options are urgently needed. We have studied the therapeutic potential of a phytopharmaceutical combining sage and bitter apple (SBA) in the mouse model of chronic dextran sulfate sodium (DSS) colitis. SBA represents a traditional medicine against diarrhea and was shown to exhibit anti-inflammatory effects in vitro...
October 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29056396/serology-in-autoimmune-hepatitis-a-clinical-practice-approach
#8
REVIEW
Benedetta Terziroli Beretta-Piccoli, Giorgina Mieli-Vergani, Diego Vergani
Serology is key to the diagnosis of autoimmune hepatitis (AIH). Clinicians need to be aware of which tests to request, how to interpret the laboratory reports, and be familiar with the laboratory methodology. If correctly tested, >95% of AIH patients show some serological reactivity. Indirect immunofluorescence on triple rodent tissue is recommended as first screening step, since it allows the detection of all liver-relevant autoantibodies, except for anti-soluble liver antigen (SLA) antibody, which needs to be detected by molecular based assays...
October 19, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29051105/nicotine-and-autoimmunity-the-lotus-flower-in-tobacco
#9
REVIEW
João Pedro Gomes, Abdulla Watad, Yehuda Shoenfeld
Nicotine, the major component of cigarettes, has demonstrated conflicting impact on the immune system: some authors suggest that increases pro-inflammatory cytokines and provokes cellular apoptosis of neutrophils, releasing intracellular components that act as auto-antigens; others claimed that nicotine has a protective and anti-inflammatory effects, especially by binding to α7 subunit of nicotinic acetylcholine receptors. The cholinergic pathway contributes to an anti-inflammatory environment characterized by increasing T regulatory cells response, down-regulating of pro-inflammatory cytokines and a pro-inflammatory cells apoptosis...
October 16, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29040430/transcriptomic-landscape-of-treatment-na%C3%A3-ve-ulcerative-colitis
#10
Hagar Taman, Christopher G Fenton, Inga V Hensel, Endre Anderssen, Jon Florholmen, Ruth H Paulssen
Background and Aims: Ulcerative colitis (UC) is a chronic inflammatory disease that effects the gastrointestinal tract and is considered one of the most prominent and common forms of inflammatory bowel disease (IBD). This study aimed to define and describe the entire transcriptomic landscape in a well-stratified, treatment-naïve UC patient population compared to control patients by using next-generation technology, RNA-Seq. Methods: Mucosal biopsies from treatment-naïve UC patients (n=14), and healthy controls (n=16) underwent RNA-Seq...
October 10, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29019857/interleukin-27-is-a-potential-rescue-therapy-for-acute-severe-colitis-through-interleukin-10-dependent-t-cell-independent-attenuation-of-colonic-mucosal-innate-immune-responses
#11
Mairi H McLean, Caroline Andrews, Miranda L Hanson, Walter A Baseler, Miriam R Anver, Emilee Senkevitch, Aleksandra K Staniszewska, Christopher Smith, Luke C Davies, Julie Hixon, Wenqeng Li, Wei Shen, Lothar Steidler, Scott K Durum
BACKGROUND: If treatment with intravenous steroids fail, inflammatory bowel disease patients with acute severe colitis face systemic anti-tumor necrosis factor biologic rescue therapy or colectomy. Interleukin (IL)-27 is a cytokine with an immunosuppressive role in adaptive immune responses. However, the IL-27 receptor complex is also expressed on innate immune cells, and there is evidence that IL-27 can impact the function of innate cell subsets, although this particular functionality in vivo is not understood...
November 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28993983/skin-manifestations-associated-with-autoimmune-liver-diseases-a-systematic-review
#12
REVIEW
Benedetta Terziroli Beretta-Piccoli, Pietro Invernizzi, M Eric Gershwin, Carlo Mainetti
Autoimmune liver diseases, which include mainly autoimmune hepatitis, primary biliary cholangitis, primary sclerosing cholangitis, and the variant syndromes, are often associated with extrahepatic autoimmune diseases. However, the association with cutaneous diseases is less well described. In the present article, we provide a systematic literature review on skin manifestations linked to each of these four autoimmune liver diseases, excluding skin manifestations of systemic diseases. The association of autoimmune hepatitis with vitiligo is well known, with a particular striking association with type 2 autoimmune hepatitis, a condition occurring almost entirely in children and adolescents, much rarer and more aggressive than type 1 autoimmune hepatitis; probable associations are also identified with alopecia areata, psoriasis, and pyoderma gangrenosum...
October 9, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28955241/lack-of-histamine-h4-receptor-expression-aggravates-tnbs-induced-acute-colitis-symptoms-in-mice
#13
Eva J Wunschel, Bastian Schirmer, Roland Seifert, Detlef Neumann
Inflammatory bowel diseases (IBD) are a growing health problem worldwide, severely affecting patients' life qualities and life expectancies. Therapeutic options, which are rare and focus on symptoms associated with the disease, suffer from increasing numbers of patients refractory to the established strategies. Thus, in order to generate new therapeutic regimens, the detailed understanding of the pathogenic mechanisms causing IBD is necessary. Histamine is an inflammatory mediator associated with IBD. Four histamine receptors are currently known of which the histamine H4-receptor (H4R) has been shown to possess a pro-inflammatory function in several experimental models of inflammatory diseases, including dextran sodium sulfate (DSS)-induced colitis in mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28935867/s100a4-contributes-to-colitis-development-by-increasing-the-adherence-of-citrobacter-rodentium-in-intestinal-epithelial-cells
#14
Jinhua Zhang, Ying Jiao, Shasha Hou, Tian Tian, Qi Yuan, Huaijie Hao, Zhenlong Wu, Xuexiang Bao
S100A4 has been implicated in cancer and several inflammatory diseases, but its role in inflammatory bowel disease has not been well investigated. Here, upon infection with Citrobacter rodentium, a model for enteropathogenic Escherichia coli infection in humans, induced the infiltration of a large number of S100A4(+) cells into the colon in wild type (WT) mice. Deficiency of S100A4 reduced weight loss, bacterial colonization and colonic pathology. Furthermore, the expression of inflammatory cytokines and the recruitment of macrophages and neutrophils also decreased significantly in S100A4 knock out (S100A4 (-/-)) mice...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28917218/erythema-elevatum-diutinum-in-crohn-s-disease-associated-spondyloarthritis-a-rare-vasculitis-an-unusual-association
#15
Maria João Gonçalves, Vasco C Romão, Luís Soares-de-Almeida, Helena Canhão, José Carlos Romeu, Heinz Kutzner, José Alberto Pereira-da-Silva
Erythema elevatum diutinum is a rare neutrophilic dermatoses with vasculitis, which presents as persistent, symmetrical, purple or brownish papules and nodules, mainly in the extensor surface of the limbs. We describe a case of erythema elevatum diutinum and polyarthritis as initial manifestations of Crohn's disease associated spondyloarthritis. A 51-year-old man, from São Tomé e Príncipe, with previous history of treated tuberculosis and chronic hepatitis B infection, was admitted due to 4 months history of polyarthritis, hyperpigmented papules on the extensor surfaces, occasional episodes of bloody mucous diarrhea and significant weight loss...
September 14, 2017: Acta Reumatológica Portuguesa
https://www.readbyqxmd.com/read/28915774/pyoderma-gangrenosum-a-current-problem-as-much-as-an-unknown-one
#16
Valerio Vallini, Roberto Andreini, Angelo Bonadio
Pyoderma gangrenosum (PG) is a rare neutrophilic inflammatory skin disease, characterized by recurrent skin ulcers, which in almost 50% of cases are associated with systemic autoimmune disorders, including rheumatoid arthritis, chronic hepatitis, inflammatory bowel disease, paraproteinemias and hematological malignancies. A systematic search of literature for PG was carried out using the PubMed, Embase, and Google Scholar databases for the purpose of this review and 2780 articles were retrieved up to February 2017...
September 2017: International Journal of Lower Extremity Wounds
https://www.readbyqxmd.com/read/28869330/butyrate-loaded-chitosan-hyaluronan-nanoparticles-a-suitable-tool-for-sustained-inhibition-of-ros-release-by-activated-neutrophils
#17
Pasquale Sacco, Eva Decleva, Fabio Tentor, Renzo Menegazzi, Massimiliano Borgogna, Sergio Paoletti, Kåre Andre Kristiansen, Kjell Morten Vårum, Eleonora Marsich
Tissue damage caused by excessive amounts of neutrophil-derived reactive oxygen species (ROS) occurs in many inflammatory diseases. Butyrate is a short-chain fatty acid (SCFA) with known anti-inflammatory properties, able to modulate several neutrophil functions. Evidence is provided here that butyrate inhibits neutrophil ROS release in a dose and time-dependent fashion. Given the short half-life of butyrate, chitosan/hyaluronan nanoparticles are next designed and developed as controlled release carriers able to provide cells with a long-lasting supply of this SCFA...
November 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/28857501/potential-roles-of-neutrophils-in-regulating-intestinal-mucosal-inflammation-of-inflammatory-bowel-disease
#18
REVIEW
Guang Xi Zhou, Zhan Ju Liu
Inflammatory bowel diseases (IBD), comprising of ulcerative colitis and Crohn's disease, are inflammatory disorders of the gastrointestinal tract characterized by chronically relapsing mucosal inflammation. Neutrophils, as the effector cells of acute inflammation, have long been reported to play a role in the maintenance of intestinal homeostasis and pathogenesis of IBD. At the early stage of mucosal inflammation in patients with IBD, neutrophils flood into intestinal mucosa, phagocytose pathogenic microbes, and promote mucosal healing and resolution of inflammation...
September 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28855088/drug-nanocarriers-to-treat-autoimmunity-and-chronic-inflammatory-diseases
#19
REVIEW
Davide Prosperi, Miriam Colombo, Ivan Zanoni, Francesca Granucci
Nanoparticles represent a new generation of drug delivery systems that can be engineered to harness optimal target selectivity for specific cells and tissues and high drug loading capacity, allowing for improved pharmacokinetics and enhanced bioavailability of therapeutics. The spontaneous propensity of both organic and colloidal nanoparticles to be captured by the cells of the reticuloendothelial system encouraged their utilization as passive targeting systems that can be preferentially directed to innate immune cells, such as macrophages, dendritic cells and neutrophils...
August 28, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28821031/surface-deacetylated-chitin-nanofibers-reinforced-with-a-sulfobutyl-ether-%C3%AE-cyclodextrin-gel-loaded-with-prednisolone-as-potential-therapy-for-inflammatory-bowel-disease
#20
Ryo Tabuchi, Makoto Anraku, Daisuke Iohara, Takako Ishiguro, Shinsuke Ifuku, Tomone Nagae, Kaneto Uekama, Shoko Okazaki, Keizo Takeshita, Masaki Otagiri, Fumitoshi Hirayama
Surface-deacetylated chitin nanofibers (SDACNFs) reinforced with a sulfobutyl ether β-cyclodextrin (SBE-β-CD) (NFs-CDs) gel were developed to obtain a controlled release carrier of prednisolone (PD) for the treatment of colitis. PD was released slowly from the gel at both pH 1.2 and 6.8. The in vitro slow release of PD from the NFs-CDs gel was reflected in the in vivo absorption of the drug after oral administration to rats. These results suggest that a simple gel composed of a mixture of SDACNFs and SBE-β-CD has the potential for use in the controlled release of PD...
October 15, 2017: Carbohydrate Polymers
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