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https://www.readbyqxmd.com/read/28346012/lymphangiogenesis-fuel-smoke-or-extinguisher-of-inflammation-s-fire
#1
Gabriella R Abouelkheir, Bradley D Upchurch, Joseph M Rutkowski
Lymphangiogenesis is a recognized hallmark of inflammatory processes in tissues and organs as diverse as the skin, heart, bowel, and airways. In clinical and animal models wherein the signaling processes of lymphangiogenesis are manipulated, most studies demonstrate that an expanded lymphatic vasculature is necessary for the resolution of inflammation. The fundamental roles that lymphatics play in fluid clearance and immune cell trafficking from the periphery make these results seemingly obvious as a mechanism of alleviating locally inflamed environments: the lymphatics are simply providing a drain...
April 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28345644/vitamin-d-both-facilitates-and-attenuates-the-cellular-response-to-lipopolysaccharide
#2
Ling Chen, Mathew Suji Eapen, Graeme R Zosky
Vitamin D has a range of non-skeletal health effects and has been implicated in the response to respiratory infections. The aim of this study was to assess the effect of vitamin D on the response of epithelial cells, neutrophils and macrophages to lipopolysaccharide (LPS) stimulation. BEAS-2B cells (airway epithelial cell line) and primary neutrophils and macrophages isolated from blood samples were cultured and exposed to LPS with and without vitamin D (1,25(OH)2D). The production of IL-6, IL-8, IL-1β and TNF-α of all cells and the phagocytic capacity of neutrophils and macrophages to E...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344684/splenic-vein-thrombosis-as-a-rare-complication-of-disseminated-tuberculosis-imaging-diagnosis-and-case-report
#3
Satarupa Roy, Shuchi Bhatt, Rajesh Rawal, Anupama Tandon, Neha Meena
BACKGROUND: Venous thromboembolism is a known but rare complication associated with Mycobacterium tuberculosis infection. The reported incidence of venous thromboembolism is 1.5-3.4% of infected patients, and it occurs due to a hypercoagulable state induced by the associated inflammation. CASE REPORT: A young woman with pulmonary tuberculosis was found to have disseminated tuberculosis and a clinically unsuspected partial thrombus in the splenic vein on imaging...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28342759/activation-of-epithelial-stat1-by-interleukin-28-controls-mucosal-healing-in-mice-with-colitis-and-is-increased-in-mucosa-of-patients-with-inflammatory-bowel-disease
#4
Mircea T Chiriac, Barbara Buchen, Alexandra Wandersee, Gheorghe Hundorfean, Claudia Günther, Yvonne Bourjau, Sean E Doyle, Benjamin Frey, Arif B Ekici, Christian Büttner, Benno Weigmann, Raja Atreya, Stefan Wirtz, Christoph Becker, Jürgen Siebler, Markus F Neurath
BACKGROUND & AIMS: We investigated the roles of interleukin 28A (also called IL28A or interferon lambda 2) in intestinal epithelial cell (IEC) activation, studying its effects in mouse models of inflammatory bowel diseases (IBD) and intestinal mucosal healing. METHODS: Colitis was induced in C57BL/6JCrl mice (controls), mice with intestinal epithelial cell-specific disruption of Stat1 (Stat1IEC-KO), mice with disruption of the interferon lambda receptor 1 gene (Il28ra-/-), and mice with disruption of the interferon regulatory factor 3 gene (Irf3-/-), with or without disruption of Irf7 (Irf7-/-)...
March 22, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28341916/long-term-results-following-antibiotic-treatment-of-acute-appendicitis-in-adults
#5
K Lundholm, J Hansson-Assarsson, C Engström, B-M Iresjö
BACKGROUND: Antibiotic treatment of acute appendicitis has gained interest and inquiries. Reports have demonstrated both safety and high resolution of symptoms and inflammation following antibiotic treatment of appendicitis, but information on long-term results is required. Our present aim was therefore to evaluate long-term recurrence rate of initial antibiotics-alone treatment for suspected acute appendicitis. METHODS: Patients with favourable response to antibiotics in earlier randomized (RCT, n = 97) and population-based (PBT, n = 342) studies as well as subsequently treated non-randomized (Non-R, n = 271) patients are evaluated for long-term risk to relapse demanding surgical appendectomy; altogether 710 patients...
March 24, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28341541/pro-resolving-actions-of-spm-in-adipose-tissue-biology
#6
REVIEW
Joan Clària, Cristina López-Vicario, Bibiana Rius, Esther Titos
White adipose tissue plays an important endocrine role in balancing metabolic homeostasis. During conditions of nutrient excess, as occurs in obesity, there is an expansion of adipose tissue mass that triggers a state of "low-grade" inflammation in this tissue. This chronic, unresolved inflammation of adipose tissue is deleterious and leads to many pathological sequelae associated with obesity including insulin resistance, type 2 diabetes and non-alcoholic fatty liver disease. Recently, a novel genus of anti-inflammatory and pro-resolving lipid mediators endogenously generated from membrane phospholipid-derived polyunsaturated fatty acids has been identified during the resolution phase of acute inflammation...
March 21, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28341389/visual-outcomes-and-complications-of-cataract-surgery-with-primary-implantation-in-infants
#7
L Vera, N Lambert, J Sommet, R Boulkedid, C Alberti, E Bui Quoc
PURPOSE: To describe the visual results and postoperative complications of cataract surgery with primary intraocular lens (IOL) implantation performed in infants and to determine possible predictive factors related to poor visual outcome. METHODS: A retrospective consecutive case series of cataract surgeries with primary IOL implantation in infants was performed. Visual outcome and postoperative complications were recorded. A final visual acuity>0.5 logMAR was considered as a poor visual outcome...
March 21, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28340685/research-techniques-made-simple-experimental-methodology-for-single-cell-mass-cytometry
#8
Tiago R Matos, Hongye Liu, Jerome Ritz
Growing recognition of the complexity of interactions within cellular systems has fueled the development of mass cytometry. The precision of time-of-flight mass spectrometry combined with the labeling of specific ligands with mass tags enables detection and quantification of more than 40 markers at a single-cell resolution. The 135 available detection channels allow simultaneous study of additional characteristics of complex biological systems across millions of cells. Cutting-edge mass cytometry by time-of-flight (CyTOF) can profoundly affect our knowledge of cell population heterogeneity and hierarchy, cellular state, multiplexed signaling pathways, proteolysis products, and mRNA transcripts...
April 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28337659/a20-in-multiple-sclerosis-and-parkinson-s-disease-clue-to-a-common-dysregulation-of-anti-inflammatory-pathways
#9
Simona Perga, Serena Martire, Francesca Montarolo, Nicole D Navone, Andrea Calvo, Giuseppe Fuda, Alberto Marchet, Daniela Leotta, Adriano Chiò, Antonio Bertolotto
Chronic inflammation significantly contributes to the pathogenesis of several neurodegenerative disorders. In physiological conditions, a chronic inflammatory state is prevented through the termination of the acute inflammatory response once the triggering insult is eliminated. Several mechanisms regulate the resolution of inflammation. Among these, a potent inhibitor of the pro-inflammatory NF-kB signaling known as A20 has emerged as a key player. Recent studies have shown reduced blood levels of A20 in the patients of diverse chronic inflammatory diseases...
March 23, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28336292/structural-elucidation-and-physiologic-functions-of-specialized-pro-resolving-mediators-and-their-receptors
#10
REVIEW
Nan Chiang, Charles N Serhan
The acute inflammatory response is host protective to contain foreign invaders. Many of today's pharmacopeia that block pro-inflammatory chemical mediators can cause serious unwanted side effects such as immune suppression. Uncontrolled inflammation is now considered a pathophysiologic basis associated with, many widely occurring diseases such as cardiovascular disease, neurodegenerative diseases, diabetes, obesity and asthma, as well as the classic inflammatory diseases, e.g. arthritis, periodontal diseases...
March 20, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28329022/annexin-a1-in-blood-mononuclear-cells-from-patients-with-coronary-artery-disease-its-association-with-inflammatory-status-and-glucocorticoid-sensitivity
#11
Ida Bergström, Anna K Lundberg, Simon Jönsson, Eva Särndahl, Jan Ernerudh, Lena Jonasson
Annexin A1 (AnxA1) is a key player in resolution of inflammation and a mediator of glucocorticoid actions. In atherosclerotic tissue, increased expression of AnxA1 has been associated with protective plaque-stabilizing effects. Here, we investigated the expression of AnxA1 in peripheral blood mononuclear cells (PBMCs) from patients with coronary artery disease (CAD). Blood was collected from 57 patients with stable CAD (SCAD) and 41 healthy controls. We also included a minor group (n = 10) with acute coronary syndrome (ACS)...
2017: PloS One
https://www.readbyqxmd.com/read/28328837/atypical-presentation-of-paroxysmal-nocturnal-hemoglobinuria-treated-by-eculizumab-a-case-report
#12
Anne Quinquenel, Quentin Maestraggi, Carinne Lecoq-Lafon, Peffault de Latour Régis, Alain Delmer, Amélie Servettaz
RATIONALE: Paroxysmal nocturnal hemoglobinuria (PNH) is a nonmalignant acquired hematopoietic stem cell disease, which can be revealed by hemolytic anemia, thromboembolism, or bonemarrow failure. Thrombosis can occur at any site, but coronary thrombosis is extremely rare. Controlled trials have demonstrated that eculizimab, an inhibitor of the terminal complement cascade, was able to reduce both hemolysis and thrombosis, but its efficacy in cases of PNH with coronary thrombosis is unknown...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28326455/neutralization-of-mmp-2-and-tnfr1-regulates-the-severity-of-s-aureus-induced-septic-arthritis-by-differential-alteration-of-local-and-systemic-proinflammatory-cytokines-in-mice
#13
Sahin Sultana, Rana Adhikary, Biswadev Bishayi
Despite advancement in the field of antibiotics septic arthritis remains a serious concern till date. Staphylococcus aureus is the most common bacterium that causes septic arthritis. Severity of this disease is directly correlated with chronic inflammation induced by proinflammatory cytokines like TNF-α, interleukin (IL)-1β, IL-6, and induction of matrix metalloproteinases (MMPs) including MMP-2. The objective of our study was to evaluate the role of MMP-2 and tumor necrosis factor receptor 1 (TNFR1) in the pathogenesis of S...
March 22, 2017: Inflammation
https://www.readbyqxmd.com/read/28322829/at-rvd1-modulates-the-activation-of-bronchial-epithelial-cells-induced-by-lipopolysaccharide-and-dermatophagoides-pteronyssinus
#14
Jhony Robison de Oliveira, Paulo Roberto da Silva, Alexandre de Paula Rogério
Bronchial epithelial cells are essential to airways homeostasis; however, they are also involved in exacerbation of airway inflammatory responses of patients with conditions such as asthma. Dermatophagoides pteronyssinus (Dp), the most important allergen, and lipopolysaccharide (LPS), both of which are present in house dust mites (HDM), can activate immune and structural cells (such as bronchial epithelial cells) and modulate the airway inflammation in asthma patients. Resolvin D1 (RvD1) and its epimer aspirin-triggered-resolvin D1 (AT-RvD1) are lipid mediators that are produced during the resolution of inflammation and demonstrate anti-inflammatory and pro-resolution effects in several experimental models including experimental models of allergic airway inflammation...
March 16, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28321710/association-between-tlr9-rs5743836-polymorphism-and-risk-of-recurrent-venous-thromboembolism
#15
Abrar Ahmad, Kristina Sundquist, Bengt Zöller, Peter J Svensson, Jan Sundquist, Ashfaque A Memon
Recent gene knockout studies on mice have shown the role of toll-like receptor 9 (TLR9) in resolution of venous thromboembolism (VTE) through sterile inflammation. However, the role of a putative functional TLR9 polymorphism (rs5743836) in risk assessment of VTE recurrence remains unknown. The aim of our study was to investigate the TLR9 rs5743836 polymorphism in VTE patients and its association with the risk of VTE recurrence. We analyzed TLR9 rs5743836 polymorphism in Malmö thrombophilia study patients; a prospective follow-up study of 1465 VTE patients by Taqman PCR...
March 20, 2017: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/28321059/arterial-carboxyhemoglobin-measurement-is-useful-for-evaluating-pulmonary-inflammation-in-subjects-with-interstitial-lung-disease
#16
Yu Hara, Masaharu Shinkai, Soichiro Kanoh, Yuji Fujikura, Bruce K Rubin, Akihiko Kawana, Takeshi Kaneko
Objective The arterial concentration of carboxyhemoglobin (CO-Hb) in subjects with inflammatory pulmonary disease is higher than that in healthy individuals. We retrospectively analyzed the relationship between the CO-Hb concentration and established markers of disease severity in subjects with interstitial lung disease (ILD). Methods The CO-Hb concentration was measured in subjects with newly diagnosed or untreated ILD and the relationships between the CO-Hb concentration and the serum biomarker levels, lung function, high-resolution CT (HRCT) findings, and the uptake in gallium-67 ((67)Ga) scintigraphy were evaluated...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28320709/plasmin-and-plasminogen-induce-macrophage-reprogramming-and-regulate-key-steps-of-inflammation-resolution-via-annexin-a1
#17
Michelle A Sugimoto, Ana Luíza C Ribeiro, Bruno R C Costa, Juliana P Vago, Kátia M Lima, Fernanda S Carneiro, Mylena Maira O Ortiz, Graziele Letícia N Lima, Aline A F Carmo, Renata M Rocha, Denise A Perez, Alessandra C Reis, Vanessa Pinho, Lindsey A Miles, Cristiana C Garcia, Mauro M Teixeira, Lirlândia P Sousa
Inflammation resolution is an active process that functions to restore tissue homeostasis. Participation of the plasminogen/plasmin (Plg/Pla) system in the productive phase of inflammation is well known, but its involvement in the resolution phase remains unclear. Therefore, we aimed to investigate the potential role of Plg/Pla in key events during the resolution of acute inflammation and its underlying mechanisms. Plg/Pla injection into the pleural cavity of BALB/c mice induced a time-dependent influx of mononuclear cells that were primarily macrophages of anti-inflammatory (M2 - F4/80(high) Gr1(-) CD11b(high)) and proresolving (Mres - F4/80(med) CD11b(low)) phenotypes, without changing the number of macrophages with a pro-inflammatory profile (M1 - F4/80(low) Gr1(+) CD11b(med))...
March 20, 2017: Blood
https://www.readbyqxmd.com/read/28319894/resolvin-d1-via-prevention-of-ros-mediated-shp2-inactivation-protects-endothelial-adherens-junction-integrity-and-barrier-function
#18
Rima Chattopadhyay, Somasundaram Raghavan, Gadiparthi N Rao
Resolvins are a novel class of lipid mediators that play an important role in the resolution of inflammation, although the underlying mechanisms are not very clear. To explore the anti-inflammatory mechanisms of resolvins, we have studied the effects of resolvin D1 (RvD1) on lipopolysaccharide (LPS)-induced endothelial barrier disruption as it is linked to propagation of inflammation. We found that LPS induces endothelial cell (EC) barrier disruption via xanthine oxidase (XO)-mediated reactive oxygen species (ROS) production, protein tyrosine phosphatase SHP2 inactivation and Fyn-related kinase (Frk) activation leading to tyrosine phosphorylation of α-catenin and VE-cadherin and their dissociation from each other affecting adherens junction (AJ) integrity and thereby increasing endothelial barrier permeability...
March 6, 2017: Redox Biology
https://www.readbyqxmd.com/read/28318799/transcriptome-analysis-of-il-10-stimulated-m2c-macrophages-by-next-generation-sequencing
#19
Emily B Lurier, Donald Dalton, Will Dampier, Pichai Raman, Sina Nassiri, Nicole M Ferraro, Ramakrishan Rajagopalan, Mahdi Sarmady, Kara L Spiller
Alternatively activated "M2" macrophages are believed to function during late stages of wound healing, behaving in an anti-inflammatory manner to mediate the resolution of the pro-inflammatory response caused by "M1" macrophages. However, the differences between two main subtypes of M2 macrophages, namely interleukin-4 (IL-4)-stimulated "M2a" macrophages and IL-10-stimulated "M2c" macrophages, are not well understood. M2a macrophages are characterized by their ability to inhibit inflammation and contribute to the stabilization of angiogenesis...
February 20, 2017: Immunobiology
https://www.readbyqxmd.com/read/28301661/treatment-of-ocular-pyogenic-granuloma-with-topical-timolol
#20
Isdin Oke, Maan Alkharashi, Robert A Petersen, Alena Ashenberg, Ankoor S Shah
Importance: Pyogenic granulomas, acquired vascular lesions, form on the ocular or palpebral surface related to inflammation from chalazia, trauma, or surgery. They can be unsightly, spontaneously bleed, and cause irritation to patients. Observations: A case series is presented of 4 consecutive children with acquired ocular surface pyogenic granulomas treated at Boston Children's Hospital from 2014 to 2016 with only topical timolol, 0.5%, twice daily for a minimum of 21 days...
March 16, 2017: JAMA Ophthalmology
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