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Resolution inflammation

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https://www.readbyqxmd.com/read/29352769/resolvin-e1-resolvin-d1-and-resolvin-d2-inhibit-constriction-of-rat-thoracic-aorta-and-human-pulmonary-artery-induced-by-the-thromboxane-mimetic-u46619
#1
Melanie Jannaway, Christopher Torrens, Jane A Warner, Anthony P Sampson
BACKGROUND AND PURPOSE: Omega-6 fatty acid-derived lipid mediators such as prostanoids, thromboxane and leukotrienes have well-established roles in regulating both inflammation and smooth muscle contractility. Resolvins are derived from omega-3 fatty acids and have important roles in promoting the resolution of inflammation, but their activity on smooth muscle contractility is unknown. We investigated whether resolvin E1 (RvE1), resolvin D1 (RvD1) and resolvin D2 (RvD2) can modulate contractions of isolated segments of rat thoracic aorta (RTA) or human pulmonary artery (HPA) induced by the α1 -adrenoceptor agonist phenylephrine or the stable thromboxane A2 mimetic U46619...
January 20, 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29351397/acute-small-intestinal-inflammation-results-in-persistent-lymphatic-alterations
#2
Sonia Rehal, Matthew Stephens, Simon Roizes, Shan Liao, Pierre-Yves von der Weid
Inflammatory bowel disease (IBD) has a complex pathophysiology with limited treatments. Structural and functional changes in the intestinal lymphatic system have been associated with the disease, with increased risk of IBD occurrence linked to a history of acute intestinal injury. To examine the potential role of the lymphatic system in inflammation recurrence, we evaluated morphological and functional changes in mouse mucosal and mesenteric lymphatic vessels, and within the mesenteric lymph nodes during acute ileitis caused by a 7-day treatment with dextran sodium sulfate (DSS)...
December 14, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29350282/neutrophil-chemotaxis
#3
REVIEW
Björn Petri, Maria-Jesús Sanz
Neutrophils are the primary cells recruited to inflamed sites during an innate immune response to tissue damage and/or infection. They are finely sensitive to inciting stimuli to reach in great numbers and within minutes areas of inflammation and tissue insult. For this effective response, they can detect extracellular chemical gradients and move towards higher concentrations, the so-called chemotaxis process or guided cell migration. This directed neutrophil recruitment is orchestrated by chemoattractants, a chemically diverse group of molecular guidance cues (e...
January 19, 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29350173/membranoproliferative-glomerulonephritis-and-interstitial-nephritis-in-the-setting-of-epstein-barr-virus-related-hemophagocytic-syndrome%C3%A2
#4
Iolanda Godinho, Estela Nogueira, Sofia Jorge, António Teixeira Alves, António Gomes da Costa
BACKGROUND: Hemophagocytic syndrome (HPS) is a rare, aggressive disorder characterized by dysregulation of lymphocyte and macrophage activity, which culminates in tissue infiltration with hemophagocytosis and ultimately organ failure. Renal involvement frequently ensues and usually results in acute tubular necrosis with associated interstitial inflammation. Less frequently, glomerulopathy can also be found. CASE: We report a case of a 24-year-old Caucasian woman with previous asymptomatic hematuria, mild proteinuria, and normal renal function who presented to us with fever...
January 19, 2018: Clinical Nephrology
https://www.readbyqxmd.com/read/29348724/ginsenoside-rg3-promotes-inflammation-resolution-through-m2-macrophage-polarization
#5
Saeromi Kang, Soo-Jin Park, Ae-Yeon Lee, Jin Huang, Hae-Young Chung, Dong-Soon Im
Background: Ginsenosides have been reported to have many health benefits, including anti-inflammatory effects, and the resolution of inflammation is now considered to be an active process driven by M2-type macrophages. In order to determine whether ginsenosides modulate macrophage phenotypes to reduce inflammation, 11 ginsenosides were studied with respect to macrophage polarization and the resolution of inflammation. Methods: Mouse peritoneal macrophages were polarized into M1 or M2 phenotypes...
January 2018: Journal of Ginseng Research
https://www.readbyqxmd.com/read/29346191/the-four-corners-sign-a-specific-imaging-feature-in-differentiating-systemic-sclerosis-related-interstitial-lung-disease-from-idiopathic-pulmonary-fibrosis
#6
Lara Walkoff, Darin B White, Jonathan H Chung, Dennis Asante, Christian W Cox
PURPOSE: Differentiating between systemic sclerosis-related interstitial lung disease (SSc-ILD) and idiopathic pulmonary fibrosis (IPF) is important because of the differences in workup, prognosis, and treatment. However, there is much overlap in the appearance of these 2 entities on high-resolution computed tomography. We propose that inflammation and/or fibrosis focally or disproportionately involving the bilateral anterolateral upper lobes and posterosuperior lower lobes ["Four Corners" Sign (FCS)] is specific for SSc-ILD...
January 16, 2018: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/29345376/role-of-negative-regulation-of-immune-signaling-pathways-in-neutrophil-function
#7
REVIEW
Veronica Azcutia, Charles A Parkos, Jennifer C Brazil
Polymorphonuclear neutrophils (PMNs) play a critical role in host defense against infection and in the resolution of inflammation. However, immune responses mediated by PMN must be tightly regulated to facilitate elimination of invading pathogens without inducing detrimental inflammation and host tissue damage. Specific engagement of cell surface immunoreceptors by a diverse range of extracellular signals regulates PMN effector functions through differential activation of intracellular signaling cascades. Although mechanisms of PMN activation mediated via cell signaling pathways have been well described, less is known about negative regulation of PMN function by immune signaling cascades...
December 19, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29341330/real-time-and-high-resolution-bioimaging-with-bright-aggregation-induced-emission-dots-in-short-wave-infrared-region
#8
Ji Qi, Chaowei Sun, Abudureheman Zebibula, Hequn Zhang, Ryan T K Kwok, Xinyuan Zhao, Wang Xi, Jacky W Y Lam, Jun Qian, Ben Zhong Tang
Fluorescence imaging in the spectral region beyond the conventional near-infrared biological window (700-900 nm) can theoretically afford high resolution and deep tissue penetration. Although some efforts have been devoted to developing a short-wave infrared (SWIR; 900-1700 nm) imaging modality in the past decade, long-wavelength biomedical imaging is still suboptimal owing to the unsatisfactory materials properties of SWIR fluorophores. Taking advantage of organic dots based on an aggregation-induced emission luminogen (AIEgen), herein microscopic vasculature imaging of brain and tumor is reported in living mice in the SWIR spectral region...
January 17, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29336522/continued-root-maturation-despite-persistent-apical-periodontitis-of-immature-permanent-teeth-after-failed-regenerative-endodontic-therapy
#9
Louis M Lin, Sahng G Kim, Gabriela Martin, Bill Kahler
Three immature permanent teeth with pulp necrosis and apical periodontitis were treated with regenerative endodontic therapy (RET), which included root canal disinfection with sodium hypochlorite irrigation, intra-canal medication with calcium hydroxide paste, 17% EDTA rinse, induction of periapical bleeding into the canal, collagen matrix and MTA coronal seal, and composite resin restoration of access cavities. After different periods of follow-up, it was observed that continued root maturation, especially apical closure occurred despite persistent apical periodontitis of immature permanent teeth after failed RET...
January 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
https://www.readbyqxmd.com/read/29336271/anti-inflammatory-drugs-and-herbs-with-special-emphasis-on-herbal-medicines-for-countering-inflammatory-diseases-and-disorders-a-review
#10
Mohd Iqbal Yatoo, Arumugam Gopalakrishnan, Archana Saxena, Oveas Rafiq Parray, Noore Alam Tufani, Sandip Chakraborty, Ruchi Tiwari, Kuldeep Dhama, Hafiz M N Iqbal
BACKGROUND: Diseases with inflammatory etiopathology have increased in incidence in recent times. Drugs used for therapeutic management of such inflammatory diseases are relieving the ailment but at the same time also countering serious life-threatening consequences. Moreover, they are costly and rarely available at all places. In this context, research and development on medicinal herbs have opened a new era in the prophylactic and therapeutic management of inflammatory diseases. OBJECTIVE: To highlight the importance of anti-inflammatory medicine-synthetic drugs and natural herbs, their constituents, mechanism of action, benefits, side effects and future prospects...
January 15, 2018: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/29332908/optical-coherence-tomography-guidance-in-management-of-acute-coronary-syndrome-caused-by-plaque-erosion
#11
Haibo Jia, Takashi Kubo, Takashi Akasaka, Bo Yu
For several decades, most physicians have believed that acute coronary syndrome (ACS) is caused by coronary thrombosis resulting from rupture of vulnerable plaque characterized by a thin fibrous cap overlying a large necrotic core and massive inflammatory cell infiltration. However, nearly one-third of ACS cases are caused by plaque erosion characterized by intact fibrous cap, less or absent necrotic core, less inflammation, and large lumen. Because of the limitations of current imaging modalities, including angiography and intravascular ultrasound, the importance of plaque erosion as a cause of acute coronary events is less well known...
January 13, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29329794/redox-signals-and-macrophage-biology-for-the-upcoming-issue-of-molecular-aspects-of-medicine-on-signaling-by-reactive-oxygen-species
#12
REVIEW
Andreas Weigert, Andreas von Knethen, Dominik Fuhrmann, Nathalie Dehne, Bernhard Brüne
Macrophages are known for their versatile role in biology. They sense and clear structures that contain exogenous or endogenous pathogen-associated molecular patterns. This process is tightly linked to the production of a mixture of potentially harmful oxidants and cytokines. Their inherent destructive behavior is directed against foreign material or structures of 'altered self', which explains the role of macrophages during innate immune reactions and inflammation. However, there is also another side of macrophages when they turn into a tissue regenerative, pro-resolving, and healing phenotype...
January 9, 2018: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29329239/fine-regulation-of-neutrophil-oxidative-status-and-apoptosis-by-ceruloplasmin-and-its-derivatives
#13
Ekaterina A Golenkina, Galina M Viryasova, Svetlana I Galkina, Tatjana V Gaponova, Galina F Sud'ina, Alexey V Sokolov
Timely neutrophil apoptosis is an essential part of the resolution phase of acute inflammation. Ceruloplasmin, an acute-phase protein, which is the predominant copper-carrying protein in the blood, has been suggested to have a marked effect on neutrophil life span. The present work is a comparative study on the effects of intact holo-ceruloplasmin, its copper-free (apo-) and partially proteolyzed forms, and synthetic free peptides RPYLKVFNPR (883-892) and RRPYLKVFNPRR (882-893) on polymorphonuclear leukocyte (PMNL, neutrophil) oxidant status and apoptosis...
January 12, 2018: Cells
https://www.readbyqxmd.com/read/29327354/a-validated-liquid-chromatography-high-resolution-tandem-mass-spectrometry-method-for-the-simultaneous-quantitation-of-tryptophan-kynurenine-kynurenic-acid-and-quinolinic-acid-in-human-plasma
#14
Kathrin Arnhard, Florian Pitterl, Barbara Sperner-Unterweger, Dietmar Fuchs, Therese Koal, Herbert Oberacher
Tryptophan (TRP) catabolism via the kynurenine pathway is considered to represent a major link between inflammation and various diseases, including neurodegenerative disorders, depression, schizophrenia, multiple sclerosis, cardiovascular disease, and cancer. The kynurenine pathway and levels of TRP and its metabolites kynurenine (KYN), kynurenic acid (KYNA) and quinolinic acid (QUIN) are well regulated under physiological conditions but may be altered as part of the activated immune response. A simple, sensitive and specific liquid chromatography-time of flight mass spectrometry method was developed for determining levels of the four compounds in human plasma samples...
January 12, 2018: Electrophoresis
https://www.readbyqxmd.com/read/29322409/tracking-competent-host-defence-to-chronic-inflammation-an-in-vivo-model-of-peritonitis
#15
Javier Uceda Fernandez, David Millrine, Simon A Jones
Anti-microbial host defence is dependent on the rapid recruitment of inflammatory cells to the site of infection, the elimination of invading pathogens, and the efficient resolution of inflammation so as to minimise damage to the host. The peritoneal cavity provides an easily accessible and physiologically relevant system where the delicate balance of these processes may be studied. Here, we describe murine models of peritoneal inflammation that enable studies of both competent anti-microbial immunity and inflammation associated tissue damage as a consequence of recurrent bacterial challenge...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29321429/early-combination-therapy-with-corticosteroid-and-nucleoside-analogue-induces-rapid-resolution-of-inflammation-in-acute-liver-failure-due-to-transient-hepatitis-b-virus-infection
#16
Keiichi Fujiwara, Shin Yasui, Yuuki Haga, Masato Nakamura, Yutaka Yonemitsu, Makoto Arai, Tatsuo Kanda, Shigeto Oda, Osamu Yokosuka, Naoya Kato
Objective Patients with acute hepatitis B sometimes develop acute liver failure (ALF), which has a poor prognosis. The efficacy of nucleoside analogue (NA) monotherapy for ALF due to transient hepatitis B virus infection (HBV-ALF) remains controversial. Further investigations are necessary in nations with a shortage of donor livers for liver transplantation. In the present study, we aimed to clarify the efficacy of combination therapy with corticosteroid (CS) and NA in the treatment HBV-ALF. Patients We examined the clinical and biochemical features of 19 patients with HBV-ALF who were treated in the early stage of the disease between 2000 and 2015...
January 11, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29320550/longitudinal-micro-ct-as-an-outcome-measure-of-interstitial-lung-disease-in-tnf-transgenic-mice
#17
Richard D Bell, Christopher Rudmann, Ronald W Wood, Edward M Schwarz, Homaira Rahimi
INTRODUCTION: Rheumatoid arthritis associated interstitial lung disease (RA-ILD) is a debilitating condition with poor survival prognosis. High resolution computed tomography (CT) is a common clinical tool to diagnose RA-ILD, and is increasingly being adopted in pre-clinical studies. However, murine models recapitulating RA-ILD are lacking, and CT outcomes for inflammatory lung disease have yet to be formally validated. To address this, we validate μCT outcomes for ILD in the tumor necrosis factor transgenic (TNF-Tg) mouse model of RA...
2018: PloS One
https://www.readbyqxmd.com/read/29319804/effects-of-agricultural-organic-dusts-on-human-lung-resident-mesenchymal-stem-stromal-cell-function
#18
Tara M Nordgren, Kristina L Bailey, Art J Heires, Dawn Katafiasz, Debra J Romberger
Agricultural organic dust exposures trigger harmful airway inflammation, and workers experiencing repetitive dust exposures are at increased risk for lung disease. Mesenchymal stem/stromal cells (MSC) regulate wound repair processes in the lung, and may contribute to either pro-resolution or pro-fibrotic lung responses. It is unknown how organic dust exposures alter lung-resident MSC activation and pro-inflammatory versus pro-repair programs in the lung. To address this gap in knowledge, we isolated human lung-resident MSC from lung tissue...
January 8, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29318438/presumed-tuberculous-uveitis-in-a-university-based-tertiary-referral-center-in-saudi-arabia
#19
Awad Al-Qarni, Marwan A Abouammoh, Abdullah N Almousa, Ahmed Mousa, Ahmed M Abu El-Asrar
PURPOSE: To describe clinical characteristics and outcomes of treatment in patients with presumed tuberculous uveitis (PTU). METHODS: All patients diagnosed with PTU between January 1996 and March 2013 were reviewed. The diagnosis was made when clinical findings were consistent with possible intraocular tuberculosis, strongly positive purified protein derivative (PPD) skin test result, and response to anti-tuberculous therapy with no other cause of uveitis as suggested by history, symptoms, or ancillary testing...
January 9, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29317307/transgenic-expression-of-tilapia-piscidin-3-tp3-in-zebrafish-confers-resistance-to-streptococcus-agalactiae
#20
Bor-Chyuan Su, Yung-Wei Lai, Jyh-Yih Chen, Chieh-Yu Pan
To study the biological role of tilapia piscidin 3 (TP3) in Streptococcus agalactiae infection in vivo, TP3/DsRed overexpressing transgenic zebrafish were generated. Under normal growth conditions, TP3/DsRed transgenic zebrafish exhibited an orange-red body color, without any other obvious abnormalities. However, when compared to wild type fish, TP3/DsRed transgenic zebrafish were resistant to S. agalactiae infection. After infection, the TP3 overexpressing fish exhibited higher expression of Toll-like receptor 4a (TLR4a), interleukin (IL)-10, IL-22, and C3b...
January 6, 2018: Fish & Shellfish Immunology
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