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Resolution inflammation

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https://www.readbyqxmd.com/read/28642580/a-snake-venom-group-iia-pla2-with-immunomodulatory-activity-induces-formation-of-lipid-droplets-containing-15-d-pgj2-in-macrophages
#1
Karina Cristina Giannotti, Elbio Leiguez, Ana Eduarda Zulim de Carvalho, Neide Galvão Nascimento, Márcio Hideki Matsubara, Consuelo Latorre Fortes-Dias, Vanessa Moreira, Catarina Teixeira
Crotoxin B (CB) is a catalytically active group IIA sPLA2 from Crotalus durissus terrificus snake venom. In contrast to most GIIA sPLA2s, CB exhibits anti-inflammatory effects, including the ability to inhibit leukocyte functions. Lipid droplets (LDs) are lipid-rich organelles associated with inflammation and recognized as a site for the synthesis of inflammatory lipid mediators. Here, the ability of CB to induce formation of LDs and the mechanisms involved in this effect were investigated in isolated macrophages...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28642328/leukocyte-diversity-in-resolving-and-nonresolving-mechanisms-of-cardiac-remodeling
#2
REVIEW
Bochra Tourki, Ganesh Halade
In response to myocardial infarction (MI), time-dependent leukocyte infiltration is critical to program the acute inflammatory response. Post-MI leukocyte density, residence time in the infarcted area, and exit from the infarcted injury predict resolving or nonresolving inflammation. Overactive or unresolved inflammation is the primary determinant in heart failure pathology post-MI. Here, our review describes supporting evidence that the acute inflammatory response also guides the generation of healing and regenerative mediators after cardiac damage...
June 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28642110/pedf-plus-dha-modulate-inflammation-and-stimulate-nerve-regeneration-after-hsv-1-infection
#3
Jiucheng He, Donna Neumann, Azucena Kakazu, Thang Luong Pham, Farhana Musarrat, M Soledad Cortina, Haydee E P Bazan
Herpes simplex virus type-1 (HSV-1) infection leads to impaired corneal sensation and, in severe cases, to corneal ulceration, melting and perforation. Here, we explore the potential therapeutic action of pigment epithelial-derived factor (PEDF) plus docosahexaenoic acid (DHA) on corneal inflammation and nerve regeneration following HSV-1 infection. Rabbits inoculated with 100,000 PFU/eye of HSV-1 strain 17Syn+ were treated with PEDF + DHA or vehicle. PEDF + DHA treatment resulted in a biphasic immune response with stronger infiltration of CD4+T cells, neutrophils and macrophages at 7-days post-treatment (p...
June 19, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28641819/dynamic-contrast-enhanced-mr-imaging-of-carotid-vasa-vasorum-in-relation-to-coronary-and-cerebrovascular-events
#4
Juan Wang, Huijun Chen, Jie Sun, Daniel S Hippe, Huawei Zhang, Shengyuan Yu, Jianming Cai, Leixing Xie, Bao Cui, Chun Yuan, Xihai Zhao, Weimin Yuan, Hongbin Liu
BACKGROUND AND AIMS: Dynamic contrast-enhanced MR imaging (DCE-MRI) provides a noninvasive approach to the functional status of carotid adventitial vasa vasorum. Contrast extravasation rate, or K(trans), derived from kinetic modeling of adventitial enhancement, has been correlated with plaque neovascularization and inflammation. This study sought to clarify the clinical implications of K(trans) by evaluating its relationship with documented cardiovascular events (CVE). METHODS: Seventy patients with carotid plaque at clinical ultrasound examination were recruited and imaged with a previously-described bright-blood DCE-MRI protocol (spatial resolution: 0...
June 3, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28639820/adolescent-sympathetic-activity-and-salivary-c-reactive-protein-the-effects-of-parental-behavior
#5
Benjamin W Nelson, Michelle L Byrne, Julian G Simmons, Sarah Whittle, Orli S Schwartz, Eric C Reynolds, Neil M O'Brien-Simpson, Lisa Sheeber, Nicholas B Allen
OBJECTIVE: This study utilized a novel multisystem approach to investigate the effect of observed parental behavior on the relationship between biological mechanisms associated with disease processes (i.e., autonomic physiology and immune response) among their adolescent children. METHOD: Thirty-three adolescents (23 males), aged 11-13, and their parents participated in a laboratory session in which adolescents provided baseline measures of autonomic (sympathetic) activity, and adolescents and 1 parent participated in a laboratory based dyadic conflict resolution interaction task...
June 22, 2017: Health Psychology: Official Journal of the Division of Health Psychology, American Psychological Association
https://www.readbyqxmd.com/read/28638221/prevalence-of-ifnl3-rs4803217-single-nucleotide-polymorphism-and-clinical-course-of-chronic-hepatitis-c
#6
Bogna Świątek-Kościelna, Ewelina Kałużna, Ewa Strauss, Jerzy Nowak, Iwona Bereszyńska, Ewelina Gowin, Jacek Wysocki, Jolanta Rembowska, Dominika Barcińska, Iwona Mozer-Lisewska, Danuta Januszkiewicz-Lewandowska
AIM: To evaluate the association of IFNL3 (IL28B) SNP rs4803217 with severity of disease and treatment outcome in chronic hepatitis C (CHC). METHODS: The study enrolled 196 CHC Polish patients (82 women and 114 men in age 20-64) infected with hepatitis C virus (HCV) genotype 1. They were treatment naïve and qualified to pegylated interferon alpha (PEG-IFN-α) and ribavirin (RBV) therapy. The analyzed baseline parameters included: degree of inflammation, stage of fibrosis, viral load as well as alanine aminotransferase (ALT), asparagine aminotransferase (AST) and total bilirubin (TBIL)...
June 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28636123/sem-imaging-of-the-stimulatory-response-of-raw264-7-cells-against-porphyromonas-gingivalis-using-a-simple-technique-employing-new-conductive-materials
#7
Chisato Takahashi, Yoshiki Umemura, Ayako Naka, Hiromitsu Yamamoto
In the medical biology, it is essential to understand not only biological morphology but also the interaction between biological materials and agents. To study these, electron microscopy (EM) is often utilized. However, sample preparation techniques for EM require a high level of skill and a considerable time. Here, we conducted EM using a simple technique employing a conductive liquid, BEL-1, and compared the results with another simple technique employing an ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4 ])...
June 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28630109/macrophage-mediated-inflammation-in-normal-and-diabetic-wound-healing
#8
REVIEW
Anna E Boniakowski, Andrew S Kimball, Benjamin N Jacobs, Steven L Kunkel, Katherine A Gallagher
The healing of cutaneous wounds is dependent on the progression through distinct, yet overlapping phases of wound healing, including hemostasis, inflammation, proliferation, and resolution/remodeling. The failure of these phases to occur in a timely, progressive fashion promotes pathologic wound healing. The macrophage (MΦ) has been demonstrated to play a critical role in the inflammatory phase of tissue repair, where its dynamic plasticity allows this cell to mediate both tissue-destructive and -reparative functions...
July 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28630010/borrelia-burgdorferi-infection-induces-lipid-mediator-production-during-lyme-arthritis
#9
Charles R Brown, Edward A Dennis
Experimental Lyme arthritis provides a mouse model for exploring the development of pathology following infection of C3H mice with Borrelia burgdorferi. Infected mice develop a reliable inflammatory arthritis of the ankle joint with severity that typically peaks around two to three weeks post-infection and then undergoes spontaneous resolution. This makes experimental Lyme arthritis an excellent model for investigating the mechanisms that drive both the development and resolution phases of inflammatory disease...
June 16, 2017: Biochimie
https://www.readbyqxmd.com/read/28629782/tnf-phase-iii-signalling-in-tolerant-cells-is-tightly-controlled-by-a20-and-cyld
#10
Rolf Bikker, Martin Christmann, Katharina Preuß, Bastian Welz, Judith Friesenhagen, Oliver Dittrich-Breiholz, René Huber, Korbinian Brand
Following the acute phase of an inflammatory reaction, a strictly controlled resolution of inflammation is necessary. A dysregulation of this process leads to hyperinflammation, chronic inflammatory disease, or immune paralysis. Different mechanisms participate in the coordinated termination of the inflammatory process, e.g. the expression of antiinflammatory molecules and different forms of tolerance. To better understand the processes which mediate resolution of TNF-dependent inflammation and induce tolerance, it is necessary to characterize the signal transduction quality during TNF long-term (pre)incubation...
June 16, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28628490/comparison-of-efficacy-of-difluprednate-0-05-and-loteprednol-gel-0-5-after-cataract-surgery
#11
Bryan Abessi, Lauren Brooksby, Robert L Schultze
PURPOSE: To compare the outcomes and complications of topical difluprednate 0.05% and loteprednol gel 0.5% after routine cataract surgery. METHODS: Subjects received either difluprednate emulsion 0.05% (n=30 eyes) or loteprednol gel 0.5% (n=30 eyes) after routine cataract surgery. Topical steroid drops were initiated 3 days before cataract surgery and continued for 2 weeks postoperatively. Anterior chamber (AC) cell grade, corneal edema, corneal pachymetry, visual acuity, ocular surface quality (Oxford scale), and intraocular pressure (IOP) were evaluated at 1 day, 1 week, and 1 month postoperatively...
June 16, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28627389/association-of-genetic-variation-in-b-cell-activating-factor-with-chronic-hepatitis-b-virus-infection
#12
Qunying Han, Cuiling Yang, Na Li, Fang Li, Jiao Sang, Yi Lv, Wenxuan Zhao, Chunyan Li, Zhengwen Liu
The outcome of hepatitis B virus (HBV) infection is considered to be related to the host immunogenetic susceptibility. B cell activating factor (BAFF) is involved in both B cell and T cell mediated immunity and its circulating levels were shown to be significantly elevated in HBV-related liver diseases. This study examined BAFF rs9514828 and rs12583006 polymorphisms in 386 patients with various liver diseases related to chronic HBV infection, 69 HBV infection resolvers, and 191 healthy controls. Both rs9514828 and rs12583006 polymorphisms and serum BAFF levels were determined in 232 patients with chronic HBV infection, and 61 healthy controls...
June 13, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28622363/acyloxyacyl-hydrolase-promotes-the-resolution-of-lipopolysaccharide-induced-acute-lung-injury
#13
Benkun Zou, Wei Jiang, Han Han, Jing Li, Weiying Mao, Zihui Tang, Qian Yang, Guojun Qian, Jing Qian, Wenjiao Zeng, Jie Gu, Tianqing Chu, Ning Zhu, Wenhong Zhang, Dapeng Yan, Rui He, Yiwei Chu, Mingfang Lu
Pulmonary infection is the most common risk factor for acute lung injury (ALI). Innate immune responses induced by Microbe-Associated Molecular Pattern (MAMP) molecules are essential for lung defense but can lead to tissue injury. Little is known about how MAMP molecules are degraded in the lung or how MAMP degradation/inactivation helps prevent or ameliorate the harmful inflammation that produces ALI. Acyloxyacyl hydrolase (AOAH) is a host lipase that inactivates Gram-negative bacterial endotoxin (lipopolysaccharide, or LPS)...
June 16, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28620599/dysmotility-in-esophageal-atresia-pathophysiology-characterization-and-treatment
#14
REVIEW
Christophe Faure, Franziska Righini Grunder
Esophageal dysmotility is almost universal after esophageal atresia (EA) repair and is mainly related to the developmental anomaly of the esophagus. Esophageal dysmotility is involved in the pathophysiology of numerous symptoms and comorbidities associated with EA such as gastroesophageal reflux disease, aspiration and respiratory complications, and symptoms of dysphagia and feeding disorders. High-resolution esophageal manometry (HREM) has facilitated the characterization of the dysmotility, but there is an incomplete correlation between symptoms and manometrical patterns...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28620081/re-examining-neutrophil-participation-in-gn
#15
Dawn J Caster, David W Powell, Irina Miralda, Richard A Ward, Kenneth R McLeish
Significant advances in understanding the pathogenesis of GN have occurred in recent decades. Among those advances is the finding that both innate and adaptive immune cells contribute to the development of GN. Neutrophils were recognized as key contributors in early animal models of GN, at a time when the prevailing view considered neutrophils to function as nonspecific effector cells that die quickly after performing antimicrobial functions. However, advances over the past two decades have shown that neutrophil functions are more complex and sophisticated...
June 15, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28618186/therapeutic-efficacy-of-fresh-allogeneic-mesenchymal-stem-cells-for-severe-refractory-feline-chronic-gingivostomatitis
#16
Boaz Arzi, Kaitlin C Clark, Ayswarya Sundaram, Mathieu Spriet, Frank J M Verstraete, Naomi J Walker, Megan R Loscar, Nasim Fazel, William J Murphy, Natalia Vapniarsky, Dori L Borjesson
Mesenchymal stem cells (MSCs) have potent immunomodulatory functions and are a promising therapy for immune-mediated inflammatory disorders. We previously demonstrated the efficacy of fresh, autologous, adipose-derived MSCs (ASCs) to treat feline chronic gingivostomatitis (FCGS), a chronic oral mucosal inflammatory disease similar to human oral lichen planus. Here, we investigate the use of fresh allogeneic ASCs for treatment of FCGS in seven cats. Radiolabeled ASCs were also tracked systemically. Each cat received two intravenous injections of 20 million ASCs, 1 month apart...
June 15, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28616244/macrophages-and-fibroblasts-during-inflammation-and-tissue-repair-in-models-of-organ-regeneration
#17
REVIEW
Anthony L Mescher
This review provides a concise summary of the changing phenotypes of macrophages and fibroblastic cells during the local inflammatory response, the onset of tissue repair, and the resolution of inflammation which follow injury to an organ. Both cell populations respond directly to damage and present coordinated sequences of activation states which determine the reparative outcome, ranging from true regeneration of the organ to fibrosis and variable functional deficits. Recent work with mammalian models of organ regeneration, including regeneration of full-thickness skin, hair follicles, ear punch tissues, and digit tips, is summarized and the roles of local immune cells in these systems are discussed...
April 2017: Regeneration
https://www.readbyqxmd.com/read/28615302/ccr2-dependent-monocyte-derived-macrophages-resolve-inflammation-and-restore-gut-motility-in-postoperative-ileus
#18
Giovanna Farro, Michelle Stakenborg, Pedro J Gomez-Pinilla, Evelien Labeeuw, Gera Goverse, Martina Di Giovangiulio, Nathalie Stakenborg, Elisa Meroni, Francesca D'Errico, Yvon Elkrim, Damya Laoui, Zofia M Lisowski, Kristin A Sauter, David A Hume, Jo A Van Ginderachter, Guy E Boeckxstaens, Gianluca Matteoli
OBJECTIVE: Postoperative ileus (POI) is assumed to result from myeloid cells infiltrating the intestinal muscularis externa (ME) in patients undergoing abdominal surgery. In the current study, we investigated the role of infiltrating monocytes in a murine model of intestinal manipulation (IM)-induced POI in order to clarify whether monocytes mediate tissue damage and intestinal dysfunction or they are rather involved in the recovery of gastrointestinal (GI) motility. DESIGN: IM was performed in mice with defective monocyte migration to tissues (C-C motif chemokine receptor 2, Ccr2(-/ (-)) mice) and wild-type (WT) mice to study the role of monocytes and monocyte-derived macrophages (MΦs) during onset and resolution of ME inflammation...
June 14, 2017: Gut
https://www.readbyqxmd.com/read/28614412/differential-effects-of-losartan-and-atorvastatin-in-partial-and-full-thickness-burn-wounds
#19
Johanneke J Akershoek, Katrien M Brouwer, Marcel Vlig, Bouke K H L Boekema, Rob H J Beelen, Esther Middelkoop, Magda M W Ulrich
Healing of burn wounds is often associated with scar formation due to excessive inflammation and delayed wound closure. To date, no effective treatment is available to prevent the fibrotic process. The Renin Angiotensin System (RAS) was shown to be involved in fibrosis in various organs. Statins (e.g. Atorvastatin), Angiotensin receptor antagonists (e.g. Losartan) and the combination of these drugs are able to reduce the local RAS activation, and reduced fibrosis in other organs. We investigated whether inhibition of the RAS could improve healing of burn wounds by treatment with Atorvastatin, Losartan or the combination of both drugs...
2017: PloS One
https://www.readbyqxmd.com/read/28611569/bacterial-ulcerative-esophagitis-in-an-immunocompetent-patient
#20
Jung A Shin, Young Bae Lee, In Cheol Yoon, Hyeon Ju Jeong, Taejung Kwon, Hong Sub Lee
Bacterial esophagitis is a very rare condition usually occurring in patients with immunosuppression. To our best knowledge, bacterial esophagitis without underlying immunosuppressive disease has not been reported. We report an immunocompetent patient with bacterial esophagitis caused by B-hemolytic Streptococcus which resulted in an esophageal stricture. A 68-year-old female was admitted for odynophagia which had developed several days before. Upper endoscopy revealed extensive ulceration covered by whitish exudates with submucosal edema at the proximal esophagus...
January 2017: Case Reports in Gastroenterology
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