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Acute inflammatory response

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https://www.readbyqxmd.com/read/28645823/recombinant-human-soluble-thrombomodulin-prevents-acute-lung-injury-in-a-rat-cardiopulmonary-bypass-model
#1
Shingo Hirao, Kenji Minakata, Hidetoshi Masumoto, Kazuhiro Yamazaki, Tadashi Ikeda, Kenji Minatoya, Ryuzo Sakata
BACKGROUND: Cardiopulmonary bypass (CPB) may induce systemic inflammatory responses causing acute lung injury. Recombinant human soluble thrombomodulin (rTM) is reported to attenuate the secretion of inflammatory cytokines and the high-mobility group box 1 (HMGB1) protein, which is critical in controlling systemic inflammation and apoptosis. We investigated the protective effects of rTM on CPB-induced lung injury in a rat model. METHODS: Eighteen male Sprague-Dawley rats were divided into 3 groups: sham, control (CPB alone), and rTM (CPB + rTM)...
May 30, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28645309/herpes-simplex-virus-1-infects-the-olfactory-bulb-shortly-following-ocular-infection-and-exhibits-a-long-term-inflammatory-profile-in-the-form-of-effector-and-hsv-1-specific-t-cells
#2
Chandra M Menendez, Daniel J J Carr
BACKGROUND: Herpes simplex virus 1 (HSV-1) infection can result in a life-threatening condition known as herpes simplex encephalitis (HSE). Trafficking patterns by which the virus reaches the central nervous system (CNS) following ocular infection are unresolved. We evaluated early viral dissemination pathways following ocular infection that involve trafficking to the olfactory bulb (OB). Additionally, we have characterized the capacity of HSV-1 to establish latency within OB tissue and profiled the local T lymphocyte response over the course of the acute infection into latency...
June 23, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28645296/myd88-dependent-pro-interleukin-1%C3%AE-induction-in-dendritic-cells-exposed-to-food-grade-synthetic-amorphous-silica
#3
Hans Christian Winkler, Julian Kornprobst, Peter Wick, Lea Maria von Moos, Ioannis Trantakis, Elisabeth Maria Schraner, Barbara Bathke, Hubertus Hochrein, Mark Suter, Hanspeter Naegeli
BACKGROUND: Dendritic cells (DCs) are specialized first-line sensors of foreign materials invading the organism. These sentinel cells rely on pattern recognition receptors such as Nod-like or Toll-like receptors (TLRs) to launch immune reactions against pathogens, but also to mediate tolerance to self-antigens and, in the intestinal milieu, to nutrients and commensals. Since inappropriate DC activation contributes to inflammatory diseases and immunopathologies, a key question in the evaluation of orally ingested nanomaterials is whether their contact with DCs in the intestinal mucosa disrupts this delicate homeostatic balance between pathogen defense and tolerance...
June 23, 2017: Particle and Fibre Toxicology
https://www.readbyqxmd.com/read/28643132/integrated-inflammatory-stress-itis-model
#4
Elisabeth O Bangsgaard, Poul G Hjorth, Mette S Olufsen, Jesper Mehlsen, Johnny T Ottesen
During the last decade, there has been an increasing interest in the coupling between the acute inflammatory response and the Hypothalamic-Pituitary-Adrenal (HPA) axis. The inflammatory response is activated acutely by pathogen- or damage-related molecular patterns, whereas the HPA axis maintains a long-term level of the stress hormone cortisol which is also anti-inflammatory. A new integrated model of the interaction between these two subsystems of the inflammatory system is proposed and coined the integrated inflammatory stress (ITIS) model...
June 22, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28642887/dynamic-regulation-of-serum-aryl-hydrocarbon-receptor-agonists-in-ms
#5
Veit Rothhammer, Davis M Borucki, Maria Isabel Garcia Sanchez, Maria Antonietta Mazzola, Christopher C Hemond, Keren Regev, Anu Paul, Pia Kivisäkk, Rohit Bakshi, Guillermo Izquierdo, Howard L Weiner, Francisco J Quintana
OBJECTIVE: Several factors influence the clinical course of autoimmune inflammatory diseases such as MS and inflammatory bowel disease. Only recently, the complex interaction between the gut microbiome, dietary factors, and metabolism has started to be appreciated with regard to its potential to modulate acute and chronic inflammation. One of the molecular sensors that mediates the effects of these environmental signals on the immune response is the aryl hydrocarbon receptor (AHR), a ligand-activated transcription factor with key functions in immune cells...
July 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/28642332/morphine-worsens-the-severity-and-prevents-pancreatic-regeneration-in-mouse-models-of-acute-pancreatitis
#6
Usman Barlass, Raini Dutta, Hassam Cheema, John George, Archana Sareen, Ajay Dixit, Zuobiao Yuan, Bhuwan Giri, Jingjing Meng, Santanu Banerjee, Sulagna Banerjee, Vikas Dudeja, Rajinder K Dawra, Sabita Roy, Ashok K Saluja
BACKGROUND: Opioids such as morphine are widely used for the management of pain associated with acute pancreatitis. Interestingly, opioids are also known to affect the immune system and modulate inflammatory pathways in non-pancreatic diseases. However, the impact of morphine on the progression of acute pancreatitis has never been evaluated. In the current study, we evaluated the impact of morphine on the progression and severity of acute pancreatitis. METHODS: Effect of morphine treatment on acute pancreatitis in caerulein, L-arginine and ethanol-palmitoleic acid models was evaluated after induction of the disease...
June 22, 2017: Gut
https://www.readbyqxmd.com/read/28642328/leukocyte-diversity-in-resolving-and-nonresolving-mechanisms-of-cardiac-remodeling
#7
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/28642288/ferumoxytol-enhanced-magnetic-resonance-imaging-assessing-inflammation-after-myocardial-infarction
#8
Colin G Stirrat, Shirjel R Alam, Thomas J MacGillivray, Calum D Gray, Marc R Dweck, Jennifer Raftis, William Sa Jenkins, William A Wallace, Renzo Pessotto, Kelvin Hh Lim, Saeed Mirsadraee, Peter A Henriksen, Scott Ik Semple, David E Newby
OBJECTIVES: Macrophages play a central role in the cellular inflammatory response to myocardial infarction (MI) and predict subsequent clinical outcomes. We aimed to assess temporal changes in cellular inflammation and tissue oedema in patients with acute MI using ultrasmallsuperparamagnetic particles of iron oxide (USPIO)-enhanced MRI. METHODS: Thirty-one patients were recruited following acute MI and followed up for 3 months with repeated T2 and USPIO-enhanced T2*-mapping MRI...
June 22, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28642096/pine-needle-extract-prevents-hippocampal-memory-impairment-in-acute-restraint-stress-mouse-model
#9
Jin-Seok Lee, Hyeong-Geug Kim, Hye-Won Lee, Won-Yong Kim, Yo-Chan Ahn, Chang-Gue Son
ETHNOPHARMACOLOGICAL RELEVANCE: The Pinus densiflora leaf has been traditionally used to treat mental health disorders as a traditional Chinese medicine. Here we examined the ethnopharmacological relevance of pine needle on memory impairment caused by stress. AIM OF THE STUDY: To elucidate the possible modulatory actions of 30% ethanolic pine needle extract (PNE) on stress-induced hippocampal excitotoxicity, we adopted an acute restraint stress mouse model. MATERIALS AND METHODS: Mice were orally administered with PNE (25, 50, or 100mg/kg) or ascorbic acid (100mg/kg) for 9 days, and were then subjected to restraint stress (6h/day) for 3 days (from experimental day 7 to 9)...
June 19, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28641650/-changes-of-thrombopoietin-levels-in-patients-with-acute-inflammatory-disease-and-its-significance
#10
Lei Liu, Wan-Hua Xu, Li-Xia Zhou, Mo Yang
OBJECTIVE: To investigate the changes of TPO levels in patients with acute inflammatory response disease of different etiologies. METHODS: In the case -control study, 65 patients with acute inflammatory response disease were enrolled in the case group (15 patients with acute myocardial infarction, 15 patients with acute cerebral infarction, 25 patients with acute trauma and 10 patients with acute pneumonia), and 42 healthy subjects were selected as the control group...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28641548/pediatric-cutaneous-graft-versus-host-disease-a-review
#11
Connie R Shi, Jennifer T Huang, Vinod E Nambudiri
BACKGROUND: Graft versus host disease (GVHD) is a significant complication following hematopoietic stem cell transplantation in the pediatric population. The most common clinical manifestation of GVHD is in the skin. This article will present a review of key concepts related to pediatric cutaneous GVHD, including pathophysiology, clinical epidemiology, diagnosis, and treatment options. GVHD is an immune-mediated process characterized by an inflammatory immune response in acute GVHD and mixed inflammatory and fibrotic states in chronic GVHD...
June 14, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28641125/an-altered-redox-environment-assisted-by-over-expression-of-fetal-hemoglobins-protects-from-inflammatory-colitis-and-reduces-inflammatory-cytokine-expression
#12
R M Gorczynski, C Alexander, K Brandenburg, Z Chen, A Heini, D Neumann, J P Mach, E T Rietschel, A Tersikh, A J Ulmer, Kai Yu, U Zahringer, I Khatri
C5BL/6 female mice receiving dextran sodium sulfate in their drinking water develop an acute inflammatory colitis within 7d, with weight loss, histopathologic signs of inflammation, and colonic expression of inflammatory cytokines. In previous studies we have reported that increased inflammatory cytokine expression in aged mice can be attenuated by oral gavage of a crude fetal extract containing glutathione (GSH), MPLA and fetal hemoglobin, or more specifically by injection of a combination of these purified reagents...
June 19, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28640516/damp-molecular-il-33-augments-monocytic-inflammatory-storm-in-hepatitis-b-precipitated-acute-on-chronic-liver-failure
#13
Xiaoxing Du, Yu Shi, Ying Yang, Ye Yu, Guohua Lou, Fangfang Lv, Zhi Chen, Qiao Yang
BACKGROUND & AIMS: Patients with acute-on-chronic liver failure (ACLF) usually exhibit defective monocyte function and excessive systemic inflammatory response. Interleukin-33 (IL-33) acts as a danger-associated molecular pattern (DAMP) to modulate immune response. However, the role of IL-33 in regulating monocyte function during hepatitis B-precipitated ACLF (HB-ACLF) in response to lipopolisaccharide (LPS) has not been clear. METHODS: In the present study, the levels of IL-33/ST2 in blood and liver samples collected from patients with HB-ACLF, chronic hepatitis B (CHB) and normal controls and the associated of those findings with disease severity were analyzed...
June 22, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28640199/the-role-of-peripheral-cns-directed-antibodies-in-promoting-inflammatory-cns-demyelination
#14
REVIEW
Silke Kinzel, Martin S Weber
In central nervous system (CNS) demyelinating disorders, such as multiple sclerosis (MS), neuromyelitis optica (NMO) and related NMO-spectrum disorders (NMO-SD), a pathogenic role for antibodies is primarily projected into enhancing ongoing CNS inflammation by directly binding to target antigens within the CNS. This scenario is supported at least in part, by antibodies in conjunction with complement activation in the majority of MS lesions and by deposition of anti-aquaporin-4 (AQP-4) antibodies in areas of astrocyte loss in patients with classical NMO...
June 22, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28638725/administration-of-a-vasoactive-intestinal-peptide-antagonist-enhances-the-autologous-anti-leukemia-t-cell-response-in-murine-models-of-acute-leukemia
#15
Christopher T Petersen, Jian-Ming Li, Edmund K Waller
Vasoactive intestinal peptide (VIP) is a neuroendocrine peptide hormone that has potent anti-inflammatory activities. VIP signaling through its receptor VPAC1 on T cells leads to reduced proliferation and a reduction in pro-inflammatory cytokine secretion. We report here that inhibition of the VIP pathway with a peptide antagonist significantly enhances a T-cell-dependent, autologous anti-leukemia response in murine models of acute myeloid leukemia and T lymphoblastic leukemia. Subcutaneous administration of the VIP antagonist, VIPhyb, resulted in reduced tumor burden and significantly enhanced survival (30-50% survival) over vehicle-treated controls (0-20% survival)...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28638684/the-new-acr-eular-criteria-for-rheumatoid-arthritis-can-identify-patients-with-same-disease-activity-but-less-damage-by-ultrasound
#16
Sibel Zehra Aydın, Concepcion Castillo-Gallego, Jackie Nam, Jane Freeston, Sarah Horton, Richard J Wakefield, Paul Emery
OBJECTIVE: We aimed to compare the ultrasound findings of patients fulfilling the 1987 ACR [OLD-rheumatoid arthritis (RA)] and the new ACR/EULAR (NEW-RA) classification criteria to examine the impact of the new criteria on disease characteristics, particularly disease duration. MATERIAL AND METHODS: A total of 2730 hands, wrists, elbows, knees, ankles, and foot joints of 105 consecutive patients with inflammatory arthritis, i.e., 82 patients fulfilling the RA criteria (60 patients, OLD-RA; 22 patients, NEW-RA alone) and 23 patients with undifferentiated arthritis, were scanned using ultrasound...
June 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/28638383/non-canonical-glucocorticoid-receptor-transactivation-of-gilz-by-alcohol-suppresses-cell-inflammatory-response
#17
Hang Pong Ng, Scott Jennings, Jack Wang, Patricia E Molina, Steve Nelson, Guoshun Wang
Acute alcohol exposure suppresses cell inflammatory response. The underlying mechanism has not been fully defined. Here we report that alcohol was able to activate glucocorticoid receptor (GR) signaling in the absence of glucocorticoids (GCs) and upregulated glucocorticoid-induced leucine zipper (gilz), a prominent GC-responsive gene. Such a non-canonical activation of GR was not blocked by mifepristone, a potent GC competitor. The proximal promoter of gilz, encompassing five GC-responsive elements (GREs), was incorporated and tested in a luciferase reporter system...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28637971/esculentoside-a-ameliorates-cecal-ligation-and-puncture-induced-acute-kidney-injury-in-rats
#18
Guodong Sun, Wei Yang, Yang Zhang, Mingyan Zhao
Esculentoside A (EsA), a saponin isolated from Phytolacca esculenta, can attenuate acute liver and lung injury. However, whether EsA has a protective effect against sepsis-induced acute kidney injury (AKI) has not been reported. In this study, EsA (2.5, 5, or 10 mg/kg) was given to rats with sepsis induced by cecal ligation and puncture (CLP). We found that EsA improved the survival of septic rats in a dose-dependent manner. In addition, EsA lowered the kidney tubular damage score and decreased blood urea nitrogen and creatinine...
June 22, 2017: Experimental Animals
https://www.readbyqxmd.com/read/28637953/synapse-specific-effects-of-il-1%C3%AE-on-long-term-potentiation-in-the-mouse-hippocampus
#19
Koji Hoshino, Kan Hasegawa, Haruyuki Kamiya, Yuji Morimoto
Interleukin-1β (IL-1β) is a key molecule in the inflammatory responses elicited during infection and injury. It exerts local effects on synaptic plasticity by binding to IL-1 receptors that are expressed at high levels in the hippocampus. We examined the effects of IL-1β on synaptic plasticity in different hippocampal regions in acute mouse brain slices by measuring long-term potentiation (LTP). IL-1β (1 ng/mL) was applied for 30 min before LTP was induced with high-frequency stimulation (HFS). LTP was significantly impaired by either IL-1β application to the Schaffer collateral-CA1 synapses or the associational/commissural (A/C) fiber-CA3 synapses, which are both dependent on N-methyl-D-aspartate (NMDA) receptor activation...
2017: Biomedical Research
https://www.readbyqxmd.com/read/28637387/immunopathology-of-chikungunya-virus-infection-lessons-learned-from-patients-and-animal-models
#20
Lisa F P Ng
Chikungunya virus (CHIKV) is an arthropod-borne alphavirus that causes acute and chronic arthritis. The virus reemerged in the Indian Ocean islands in 2005-2006 and is responsible for outbreaks in the Caribbean islands and the Americas since late 2013. Despite the wealth of research over the past 10 years, there are no commercially available antiviral drugs or vaccines. Treatment usually involves analgesics, anti-inflammatory drugs, and supportive care. Most studies have been focused on understanding the pathogenesis of CHIKV infection through clinical observation and with animal models...
June 21, 2017: Annual Review of Virology
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