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https://www.readbyqxmd.com/read/28213094/aspirin-triggered-resolvin-d1-modified-materials-promote-the-accumulation-of-pro-regenerative-immune-cell-subsets-and-enhance-vascular-remodeling
#1
Mary Caitlin P Sok, Maxianne C Tria, Claire E Olingy, Cheryl L San Emeterio, Edward A Botchwey
: Many goals in tissue engineering rely on modulating cellular localization and polarization of cell signaling, including the inhibition of inflammatory infiltrate, facilitation of inflammatory cell egress, and clearance of apoptotic cells. Omega-3 polyunsaturated fatty acid-derived resolvins are gaining increasing recognition for their essential roles in inhibition of neutrophil invasion into inflamed tissue and promotion of macrophage phagocytosis of cellular debris as well as their egress to the lymphatics...
February 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28212523/redox-regulation-in-metabolic-programming-and-inflammation
#2
REVIEW
Helen R Griffiths, Dan Gao, Chathyan Pararasa
Energy metabolism and redox state are intrinsically linked. In order to mount an adequate immune response, cells must have an adequate and rapidly available energy resource to migrate to the inflammatory site, to generate reactive oxygen species using NADPH as a cofactor and to engulf bacteria or damaged tissue. The first responder cells of the innate immune response, neutrophils, are largely dependent on glycolysis. Neutrophils are relatively short-lived, dying via apoptosis in the process of bacterial killing through production of hypochlorous acid and release of extracellular NETs...
February 12, 2017: Redox Biology
https://www.readbyqxmd.com/read/28210651/analysis-of-platelet-rich-plasma-extraction-variations-in-platelet-and-blood-components-between-4-common-commercial-kits
#3
Jane Fitzpatrick, Max K Bulsara, Paul Robert McCrory, Martin D Richardson, Ming Hao Zheng
BACKGROUND: Platelet-rich plasma (PRP) has been extensively used as a treatment in tissue healing in tendinopathy, muscle injury, and osteoarthritis. However, there is variation in methods of extraction, and this produces different types of PRP. PURPOSE: To determine the composition of PRP obtained from 4 commercial separation kits, which would allow assessment of current classification systems used in cross-study comparisons. STUDY DESIGN: Controlled laboratory study...
January 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28207965/is-colchicine-more-effective-to-prevent-pfapa-episodes-in-mefv-variants
#4
Muhammed Gunes, Sukru Cekic, Sara Sebnem Kilic
BACKGROUND: Periodic fever, aphthous stomatitis, pharyngitis and cervical adenitis (PFAPA) syndrome is the most frequent repetitive fever syndrome in childhood. It is characterized with fever episodes lasting for about three to six days, once every three to eight weeks. METHODS: Clinical and laboratory data of patients with PFAPA syndrome between January 2010 and December 2014 followed up at a tertiary pediatric care hospital were reviewed. RESULTS: Four-hundred children (256 male, 144 female), the mean age at diagnosis was 4...
February 16, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28204966/inhibition-of-the-renin-angiotensin-system-post-myocardial-infarction-prevents-inflammation-associated-acute-cardiac-rupture
#5
Xiao-Ming Gao, Alan Tsai, Annas Al-Sharea, Yidan Su, Shirley Moore, Li-Ping Han, Helen Kiriazis, Anthony M Dart, Andrew J Murphy, Xiao-Jun Du
PURPOSE: Inhibition of the renin-angiotensin system (RAS) is beneficial in patient management after myocardial infarction (MI). However, whether RAS inhibition also provides cardiac protection in the acute phase of MI is unclear. METHODS: Male 129sv mice underwent coronary artery occlusion to induce MI, followed by treatment with losartan (L, 20 and 60 mg/kg), perindopril (P, 2 and 6 mg/kg), amlodipine (20 mg/kg as a BP-lowering agent) or vehicle as control. Drug effects on hemodynamics were examined...
February 15, 2017: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/28202548/neutrophil-elastase-regulates-emergency-myelopoiesis-preceding-systemic-inflammation-in-diet-induced-obesity
#6
Jun-Yuan Huang, Qiong Lin Zhou, Chun-Hong Huang, Ye Song, Andria G Sharma, Zhangping Liao, Kavin Zhu, Miles W Massidda, Ryan R Jamieson, Jun-Yuan Zhang, Daniel G Tenen, Zhen Y Jiang
Inflammation plays a significant role in the development of obesity-related complications, but the molecular events that initiate and propagate such inflammation remain unclear. Here, we report that mice fed a high-fat diet (HFD) for as short as one to three days show increased myeloid progenitors differentiation into neutrophils and monocytes but reduced B lymphocyte production in the bone marrow (BM). Levels of neutrophil elastase (NE) and the nuclear factors CCAAT-enhancer-binding protein alpha (C/EBPα) and growth factor independent 1 (GFI-1) are elevated in hematopoietic stem and progenitor cells (HSPCs) from HFD-fed mice, but mice lacking either NE or C/EBPα are resistant to HFD-induced myelopoiesis...
February 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28194569/the-role-of-inflammation-in-cardiovascular-outcome
#7
REVIEW
Fabrizio Montecucco, Luca Liberale, Aldo Bonaventura, Alessandra Vecchiè, Franco Dallegri, Federico Carbone
PURPOSE OF REVIEW: The aim of this review is to update the pathophysiological role of innate immune response in the cardiovascular (CV) disease outcomes, particularly focusing on coronary atherosclerosis and heart failure. RECENT FINDINGS: Inflammatory processes comprised with the innate immunity reaction are believed to actively trigger CV disease development and final clinical events. For instance, by releasing proteases and neutrophil extracellular traps, neutrophil recruitment and activation might strongly influence atherosclerotic plaque stability...
March 2017: Current Atherosclerosis Reports
https://www.readbyqxmd.com/read/28194110/immunosuppressive-effects-of-natural-%C3%AE-%C3%AE-unsaturated-carbonyl-based-compounds-and-their-analogs-and-derivatives-on-immune-cells-a-review
#8
REVIEW
Laiba Arshad, Ibrahim Jantan, Syed Nasir Abbas Bukhari, Md Areeful Haque
The immune system is complex and pervasive as it functions to prevent or limit infections in the human body. In a healthy organism, the immune system and the redox balance of immune cells maintain homeostasis within the body. The failure to maintain the balance may lead to impaired immune response and either over activity or abnormally low activity of the immune cells resulting in autoimmune or immune deficiency diseases. Compounds containing α,β-unsaturated carbonyl-based moieties are often reactive. The reactivity of these groups is responsible for their diverse pharmacological activities, and the most important and widely studied include the natural compounds curcumin, chalcone, and zerumbone...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28193827/monocyte-subsets-coregulate-inflammatory-responses-by-integrated-signaling-through-tnf-and-il-6-at-the-endothelial-cell-interface
#9
Myriam Chimen, Clara M Yates, Helen M McGettrick, Lewis S C Ward, Matthew J Harrison, Bonita Apta, Lea H Dib, Beat A Imhof, Paul Harrison, Gerard B Nash, G Ed Rainger
Two major monocyte subsets, CD14(+)CD16(-) (classical) and CD14(+/dim)CD16(+) (nonclassical/intermediate), have been described. Each has different functions ascribed in its interactions with vascular endothelial cells (EC), including migration and promoting inflammation. Although monocyte subpopulations have been studied in isolated systems, their influence on EC and on the course of inflammation has been ignored. In this study, using unstimulated or cytokine-activated EC, we observed significant differences in the recruitment, migration, and reverse migration of human monocyte subsets...
February 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28192147/systemic-innate-immune-activation-in-food-protein-induced-enterocolitis-syndrome-fpies
#10
Ritobrata Goswami, Ana Belen Blazquez, Roman Kosoy, Adeeb Rahman, Anna Nowak-Wegrzyn, M Cecilia Berin
BACKGROUND: Food protein induced enterocolitis syndrome (FPIES) is a non-IgE-mediated food allergy of infancy whose pathophysiology is poorly understood. OBJECTIVES: We set out to identify and phenotype allergen-responsive cells in peripheral blood of a cohort of subjects undergoing supervised food challenge for FPIES. METHODS: We profiled antigen-responsive cells in peripheral blood mononuclear cells by flow cytometry, and examined cells in whole blood obtained before and after challenge by CyTOF mass cytometry and RNAseq...
February 9, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28191674/induced-histamine-regulates-ni-elution-from-an-implanted-ni-wire-in-mice-by-downregulating-neutrophil-migration
#11
Yu Kishimoto, Sanki Asakawa, Taiki Sato, Takayuki Takano, Takahisa Nakajyo, Natsumi Mizuno, Ryosuke Segawa, Takeo Yoshikawa, Masahiro Hiratsuka, Kazuhiko Yanai, Hiroshi Ohtsu, Noriyasu Hirasawa
Histamine regulates various inflammatory reactions. We have reported that the expression of histidine decarboxylase (HDC) was induced by subcutaneous implantation of nickel (Ni) wire. However, the source and functions of histamine in Ni elution and Ni wire-induced inflammation have not completely studied. We aimed to elucidate the effects of de novo synthesized histamine on leukocyte infiltration and Ni elution. Implantation of Ni wire induced an increase in the Ni ion content of the surrounding tissues and serum and in the mRNA levels of HDC, a histamine-producing enzyme, macrophage inflammatory protein-2 (MIP-2), a chemoattractant for neutrophils, and monocyte chemoattractant protein-1 (MCP-1), a chemoattractant for monocytes...
February 13, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28191455/ankylosing-spondylitis-patients-have-impaired-osteoclast-gene-expression-in-circulating-osteoclast-precursors
#12
Inês P Perpétuo, Joana Caetano-Lopes, Elsa Vieira-Sousa, Raquel Campanilho-Marques, Cristina Ponte, Helena Canhão, Mari Ainola, João E Fonseca
INTRODUCTION: Ankylosing spondylitis (AS) is typically characterized by focal bone overgrowth and also by systemic bone loss. We hypothesize that the increased osteoproliferation found in AS might be partially due to reduced ability of osteoclast precursors (OCPs) to differentiate into osteoclasts (OCs). Therefore, our aim was to characterize bone remodeling and pro-osteoclastogenesis inflammatory environment, monocytes' phenotype, and in vitro osteoclast differentiation in AS patients...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28191362/the-anti-inflammatory-effect-of-alpha-1-antitrypsin-in-rhinovirus-infected-human-airway-epithelial-cells
#13
Di Jiang, Reena Berman, Qun Wu, Connor Stevenson, Hong Wei Chu
OBJECTIVE: Excessive airway inflammation is seen in chronic obstructive pulmonary disease (COPD) patients experiencing acute exacerbations, which are often associated with human rhinovirus (HRV) infection. Alpha-1 antitrypsin (A1AT) has anti-inflammatory function in endothelial cells and monocytes, but its anti-inflammatory effect has not been investigated in COPD airway epithelial cells. We determined A1AT's anti-inflammatory function in COPD airway epithelial cells and the underlying mechanisms such as the role of caspase-1...
December 2016: Journal of Clinical & Cellular Immunology
https://www.readbyqxmd.com/read/28187463/preoperative-albumin-to-globulin-ratio-predicts-survival-in-clear-cell-renal-cell-carcinoma-patients
#14
Zhen Chen, Yingjie Shao, Hongwei Yao, Qianfeng Zhuang, Kun Wang, Zhaoyu Xing, Xianlin Xu, Xiaozhou He, Renfang Xu
In this retrospective analysis, we evaluated associations between albumin to globulin ratio (AGR), clinicopathological characteristics, and survival in 592 patients with localized or locally advanced clear cell renal cell carcinoma (CCRCC) prior to nephrectomy. We found that low AGR was associated with more aggressive tumor behavior; patients with low AGR had poorer overall survival (OS) and cancer-specific survival (CSS) in Kaplan-Meier survival analyses both before and after propensity score matching, which was used to compensate for differences in baseline clinicopathological characteristics...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28179508/two-step-enhanced-cancer-immunotherapy-with-engineered-salmonella-typhimurium-secreting-heterologous-flagellin
#15
Jin Hai Zheng, Vu H Nguyen, Sheng-Nan Jiang, Seung-Hwan Park, Wenzhi Tan, Seol Hee Hong, Myung Geun Shin, Ik-Joo Chung, Yeongjin Hong, Hee-Seung Bom, Hyon E Choy, Shee Eun Lee, Joon Haeng Rhee, Jung-Joon Min
We report a method of cancer immunotherapy using an attenuated Salmonella typhimurium strain engineered to secrete Vibrio vulnificus flagellin B (FlaB) in tumor tissues. Engineered FlaB-secreting bacteria effectively suppressed tumor growth and metastasis in mouse models and prolonged survival. By using Toll-like receptor 5 (TLR5)-negative colon cancer cell lines, we provided evidence that the FlaB-mediated tumor suppression upon bacterial colonization is associated with TLR5-mediated host reactions in the tumor microenvironment...
February 8, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28178315/composition-and-pathogenic-potential-of-a-microbial-bioremediation-product-used-for-crude-oil-degradation
#16
Azam F Tayabali, Gordon Coleman, Jennifer Crosthwait, Kathy C Nguyen, Yan Zhang, Philip Shwed
A microbial bioremediation product (MBP) used for large-scale oil degradation was investigated for microbial constituents and possible pathogenicity. Aerobic growth on various media yielded >108 colonies mL-1. Full-length 16S rDNA sequencing and fatty acid profiling from morphologically distinct colonies revealed ≥13 distinct genera. Full-length 16S rDNA library sequencing, by either Sanger or long-read PacBio technology, suggested that up to 21% of the MBP was composed of Arcobacter. Other high abundance microbial constituents (>6%) included the genera Proteus, Enterococcus, Dysgonomonas and several genera in the order Bacteroidales...
2017: PloS One
https://www.readbyqxmd.com/read/28173836/complex-regulation-of-neutrophil-derived-mmp-9-secretion-in-central-nervous-system-tuberculosis
#17
Catherine W M Ong, Przemyslaw J Pabisiak, Sara Brilha, Poonam Singh, Federico Roncaroli, Paul T Elkington, Jon S Friedland
BACKGROUND: Central nervous system tuberculosis (CNS-TB) may be fatal even with treatment. Neutrophils are the key mediators of TB immunopathology, and raised CSF matrix metalloproteinase-9 (MMP-9) which correlates to neutrophil count in CNS-TB is associated with neurological deficit and death. The mechanisms by which neutrophils drive TB-associated CNS matrix destruction are not clearly defined. METHODS: Human brain biopsies with histologically proven CNS-TB were stained for neutrophils, neutrophil elastase, and MMP-9...
February 7, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28173831/immunoselected-stro-3-mesenchymal-precursor-cells-reduce-inflammation-and-improve-clinical-outcomes-in-a-large-animal-model-of-monoarthritis
#18
Anwar Abdalmula, Laura M Dooley, Claire Kaufman, Elizabeth A Washington, Jacqueline V House, Barbara A Blacklaws, Peter Ghosh, Silviu Itescu, Simon R Bailey, Wayne G Kimpton
BACKGROUND: The purpose of this study was to investigate the therapeutic efficacy of intravenously administered immunoselected STRO-3 + mesenchymal precursor cells (MPCs) on clinical scores, joint pathology and cytokine production in an ovine model of monoarthritis. METHODS: Monoarthritis was established in 16 adult merino sheep by administration of bovine type II collagen into the left hock joint following initial sensitization to this antigen. After 24 h, sheep were administered either 150 million allogeneic ovine MPCs (n = 8) or saline (n = 8) intravenously (IV)...
February 7, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28170202/autologous-neohep-derived-from-chronic-hepatitis-b-virus-patients-blood-monocytes-by-upregulation-of-c-met-signaling
#19
Jashdeep Bhattacharjee, Barun Das, Disha Sharma, Preeti Sahay, Kshama Jain, Alaknanda Mishra, Srikanth Iyer, Puja Nagpal, Vinod Scaria, Perumal Nagarajan, Prakash Khanduri, Asok Mukhopadhyay, Pramod Upadhyay
In view of the escalating need for autologous cell-based therapy for treatment of liver diseases, a novel candidate has been explored in the present study. The monocytes isolated from hepatitis B surface antigen (HBsAg) nucleic acid test (NAT)-positive (HNP) blood were differentiated to hepatocyte-like cells (NeoHep) in vitro by a two-step culture procedure. The excess neutrophils present in HNP blood were removed before setting up the culture. In the first step of culture, apoptotic cells were depleted and genes involved in hypoxia were induced, which was followed by the upregulation of genes involved in the c-MET signaling pathway in the second step...
January 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28169460/alterations-of-the-hematologic-cells-in-synthetic-cannabinoid-users
#20
Derya Guzel, Ahmet Bulent Yazici, Esra Yazici, Atila Erol
BACKGROUND: Functions, morphology, distributions, and index of the circulating cells are the most useful parameters that indicate various inflammatory and toxic conditions. The aim of this study was to investigate the clinical significance of these parameters in patients diagnosed with (synthetic) cannabis use disorder. METHODS: This study included a total of 40 patients in the study group (SG) with synthetic cannabis use; and 40 healthy individuals as the control group (CG)...
February 7, 2017: Journal of Clinical Laboratory Analysis
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