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sepsis AND anti-inflammatory

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https://www.readbyqxmd.com/read/28087409/thioredoxin-a-novel-biomarker-of-post-injury-sepsis
#1
Jesper Eriksson, Andreas Gidlöf, Mikael Eriksson, Emma Larsson, Olof Brattström, Anders Oldner
BACKGROUND: Thioredoxin (TRX), an endogenous anti-oxidant protein induced in inflammatory conditions, has been shown to increase in plasma and to be associated with outcome in septic patients. This biomarker has never been studied in a trauma setting. We hypothesized that TRX would be increased after trauma and associated with post-injury sepsis. METHODS: Single-centre prospective observational study conducted at the intensive care unit (ICU) at the Karolinska University Hospital, Stockholm, Sweden, a level-1 trauma centre...
January 10, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28078348/the-fifth-epidermal-growth-factor-like-region-of-thrombomodulin-alleviates-lps-induced-sepsis-through-interacting-with-g-protein-coupled-receptor-15
#2
Bin Pan, Xiangmin Wang, Shinsuke Kojima, Chie Nishioka, Akihito Yokoyama, Goichi Honda, Kailin Xu, Takayuki Ikezoe
Thrombomodulin (TM) exerts cytoprotection via the fifth region of epidermal growth factor (EGF)-like domain of TM (TME5) by interacting with G-protein coupled receptor 15 (GPR15) expressed on cell surface of vascular endothelial cells. TM is also implied to mediate anti-inflammatory functions by unknown mechanism. By applying a lipopolysaccharide (LPS)-induced murine sepsis model, we assessed the role of TME5 in septic inflammation and coagulation. We found that TME5 treatment protected mice in association with ameliorating inflammation and coagulopathy in LPS-induced sepsis...
January 12, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28072760/pentoxifylline-inhibits-tlr-and-inflammasome-mediated-in-vitro-inflammatory-cytokine-production-in-human-blood-with-greater-efficacy-and-potency-in-newborns
#3
Esther M Speer, David J Dowling, Lukasz S Ozog, Jianjin Xu, Jie Yang, Geetika Kennady, Ofer Levy
BACKGROUND: Toll-like receptor (TLR)-mediated inflammation may contribute to neonatal sepsis, for which pentoxifylline (PTX), a phosphodiesterase inhibitor that raises intracellular cAMP, is a candidate adjunctive therapy. We characterized the anti-inflammatory effects of PTX towards TLR-mediated production of inflammatory (TNF, IL-1ß) and pro-resolution (IL-6, IL- 10) cytokines in human newborn and adult blood. METHODS: Newborn cord and adult blood were treated with PTX (50 - 400 μM) before, during or after stimulation with LPS (TLR4 agonist), R848 (TLR7/8 agonist) or LPS/ATP (inflammasome activation)...
January 10, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28067837/kaempferol-and-chrysin-synergies-to-improve-septic-mice-survival
#4
Omar A Harasstani, Chau Ling Tham, Daud A Israf
Previously, we reported the role of synergy between two flavonoids-namely, chrysin and kaempferol-in inhibiting the secretion of a few major proinflammatory mediators such as tumor necrosis factor-alpha (TNF-α), prostaglandin E₂ (PGE₂), and nitric oxide (NO) from lipopolysaccharide (LPS)-induced RAW 264.7 cells. The present study aims to evaluate the effects of this combination on a murine model of polymicrobial sepsis induced by cecal ligation and puncture (CLP). Severe sepsis was induced in male ICR mice (n = 7) via the CLP procedure...
January 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28063472/the-effect-of-free-and-carrier-bound-cortisol-on-equine-neutrophil-function
#5
Melanie A Fratto, Kelsey A Hart, Natalie A Norton, Michelle H Barton, Steeve Giguère, David J Hurley
Cortisol is a key anti-inflammatory hormone that increases in bacterial sepsis and circulates predominantly bound to cortisol binding globulin (CBG). Only unbound cortisol was believed to be biologically active, but recent evidence suggests that CBG-bound cortisol also regulates inflammation. The objective of this study was to evaluate the effects of free and CBG-bound cortisol on equine neutrophil function ex vivo. We hypothesized that CBG would enhance cortisol-mediated suppression of neutrophil pro-inflammatory responses...
January 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28060523/anti-inflammatory-effects-of-pelargonidin-on-tgfbip-induced-responses
#6
Seongdo Jeong, Sae-Kwang Ku, Jong-Sup Bae
Transforming growth factor β induced protein (TGFBIp) is an extracellular matrix protein expressed in several cell types in response to TGF-β. TGFBIp is released by human umbilical vein endothelial cells (HUVECs) and functions as a mediator of experimental sepsis. Pelargonidin (PEL) is a well-known red pigment found in plants, and has been reported as having important biological activities that are potentially beneficial for human health. This study was undertaken to investigate whether PEL can modulate TGFBIp-mediated inflammatory responses in HUVECs and in mice...
November 1, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28056977/corilagin-ameliorates-the-extreme-inflammatory-status-in-sepsis-through-tlr4-signaling-pathways
#7
Hua-Rong Li, Jie Liu, Shu-Ling Zhang, Tao Luo, Fei Wu, Ji-Hua Dong, Yuan-Jin Guo, Lei Zhao
BACKGROUND: Sepsis is one of the serious disorders in clinical practice. Recent studies found toll-like receptors 4 (TLR4) played an important role in sepsis. In this study, we tried to find the influence of Corilagin on TLR4 signal pathways in vitro and in vivo. METHODS: The cellular and animal models of sepsis were established by LPS and then interfered with Corilagin. Real-time PCR and western blot were employed to detect the mRNA and protein expressions of TLR4, MyD88, TRIF and TRAF6...
January 5, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28054660/antimicrobial-and-anti-inflammatory-activities-of-three-chensinin-1-peptides-containing-mutation-of-glycine-and-histidine-residues
#8
Weibing Dong, Xiaoman Mao, Yue Guan, Yao Kang, Dejing Shang
The natural peptide chensinin-1 doesnot exhibit its desired biological properties. In this study, the mutant MC1-1 was designed by replacing Gly in the chensinin-1 sequence with Trp. Mutants MC1-2 and MC1-3 were designed based on the MC1-1 sequence to investigate the specific role of His residues. The mutated peptides presented α-helicity in a membrane-mimetic environment and exhibited broad-spectrum antimicrobial activities; in contrast to Trp residues, His residues were dispensable for interacting with the cell membrane...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28052995/rage-mediated-suppression-of-il-10-results-in-enhanced-mortality-in-a-murine-model-of-acinetobacter-baumannii-sepsis
#9
Michael J Noto, Kyle W Becker, Kelli L Boyd, Ann Marie Schmidt, Eric P Skaar
The receptor for advanced glycation end products (RAGE) is a pattern recognition receptor capable of recognizing multiple pathogen-associated and danger-associated molecular patterns that contributes to the initiation and potentiation of inflammation in many disease processes. During infection, RAGE functions to either exacerbate disease severity or enhance pathogen clearance depending on the pathogen studied. Acinetobacter baumannii is an opportunistic human pathogen capable of causing severe infections, including pneumonia and sepsis, in impaired hosts...
January 4, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28051160/lipopolysaccharide-induced-neutrophil-dysfunction-following-transjugular-intrahepatic-portosystemic-stent-shunt-tipss-insertion-is-associated-with-organ-failure-and-mortality
#10
Jane Macnaughtan, Rajeshwar P Mookerjee, Rajiv Jalan
Systemic lipopolysaccharide (LPS) is implicated in increasing mortality in patients with alcoholic hepatitis but the underlying mechanisms are not well characterised. The objective of this study was to characterise neutrophil function, LPS and cytokine concentrations within the splanchnic circulation of alcoholic cirrhotic patients undergoing TIPSS insertion for variceal haemorrhage and correlate this with outcome. 26 patients with alcoholic cirrhosis and variceal haemorrhage were studied prior to and 1-hour after TIPSS insertion...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28035464/the-lipoxin-a4-agonist-bml-111-attenuates-acute-hepatic-dysfunction-induced-by-cecal-ligation-and-puncture-in-rats
#11
Ghada S El-Tanbouly, Mohammed S El-Awady, Nermeen A Megahed, Hassan A El-Kashef, Hatem A Salem
Sepsis is a systemic inflammatory response associating severe infection leading to multi-organ failure, such as hepatic dysfunction. This study investigates the possible hepatoprotective effect of the lipoxin A4 agonist (BML-111) in cecal ligation and puncture (CLP) model in rats. Pretreatment with BML-111 (1 mg/kg, i.p., 1 h before CLP) protected against CLP-induced mortality after 24 h. BML-111 prevented marked inflammatory cells in liver tissues and decreased elevation in serum hepatic biomarkers [alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TB), gamma-glutamyl transferase (γ-GT)] induced by CLP...
December 29, 2016: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28029146/protective-effects-of-luteolin-on-lipopolysaccharide-induced-acute-renal-injury-in-mice
#12
Shao-Bin Xin, Hao Yan, Jing Ma, Qiang Sun, Li Shen
BACKGROUND Sepsis can cause serious acute kidney injury in bacterium-infected patients, especially in intensive care patients. Luteolin, a bioactive flavonoid, has renal protection and anti-inflammatory effects. This study aimed to investigate the effect and underlying mechanism of luteolin in attenuating lipopolysaccharide (LPS)-induced renal injury. MATERIAL AND METHODS ICR mice were treated with LPS (25 mg/kg) with or without luteolin pre-treatment (40 mg/kg for three days). The renal function, histological changes, degree of oxidative stress, and tubular apoptosis in these mice were examined...
December 28, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28025500/glucocorticoids-protect-neonatal-rat-brain-in-model-of-hypoxic-ischemic-encephalopathy-hie
#13
Benjamin Harding, Katherine Conception, Yong Li, Lubo Zhang
Hypoxic-ischemic encephalopathy (HIE) resulting from asphyxia in the peripartum period is the most common cause of neonatal brain damage and can result in significant neurologic sequelae, including cerebral palsy. Currently therapeutic hypothermia is the only accepted treatment in addition to supportive care for infants with HIE, however, many additional neuroprotective therapies have been investigated. Of these, glucocorticoids have previously been shown to have neuroprotective effects. HIE is also frequently compounded by infectious inflammatory processes (sepsis) and as such, the infants may be more amenable to treatment with an anti-inflammatory agent...
December 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28024294/celecoxib-administration-reduced-mortality-mesenteric-hypoperfusion-aortic-dysfunction-and-multiple-organ-injury-in-septic-rats
#14
Erdem Kamil Ozer, Mustafa Tugrul Goktas, Ibrahim Kilinc, Hulagu Bariskaner, Ceyhan Ugurluoglu, Alper Bektas Iskit
BACKGROUND: The cyclooxygenase (COX)-2 overexpression is associated with vascular injury and multiple organ failure in sepsis. However, constitutive COX-1 and basal COX-2 expressions have physiological effects. We aimed to investigate the effects of partial and selective COX-2 inhibition without affecting constitutive COX-1 and basal COX-2 activities by celecoxib on mesenteric artery blood flow (MABF), vascular reactivity, oxidative and inflammatory injuries, and survival in septic rats accomplished by cecal ligation and puncture (CLP)...
December 23, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28018358/endothelial-response-to-glucocorticoids-in-inflammatory-diseases
#15
REVIEW
Karolina A Zielińska, Laura Van Moortel, Ghislain Opdenakker, Karolien De Bosscher, Philippe E Van den Steen
The endothelium plays a crucial role in inflammation. A balanced control of inflammation requires the action of glucocorticoids (GCs), steroidal hormones with potent cell-specific anti-inflammatory properties. Besides the classic anti-inflammatory effects of GCs on leukocytes, recent studies confirm that endothelial cells also represent an important target for GCs. GCs regulate different aspects of endothelial physiology including expression of adhesion molecules, production of pro-inflammatory cytokines and chemokines, and maintenance of endothelial barrier integrity...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28013519/anti-inflammatory-properties-of-antimicrobial-peptides-and-peptidomimetics-lps-and-lta-neutralization
#16
Sarah Line Skovbakke, Henrik Franzyk
Lipopolysaccharide (LPS) and lipoteichoic acid (LTA) neutralization constitute potential non-antibiotic treatment strategies for sepsis - a systemic infection-induced inflammatory response. Studies on LPS- and LTA-neutralizing compounds are abundant in literature, and a number of peptides and peptidomimetics appear to display promising activity. However, in this ongoing search for potential antisepsis drug leads, it will be preferable that the assays used by different research groups lead to readily comparable data for the most efficient compounds...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28001381/treatment-of-sepsis-pathogenesis-with-high-mobility-group-box-protein-1-regulating-anti-inflammatory-agents
#17
Wansang Cho, Ja Young Koo, Yeonju Park, Keunhee Oh, Sanghee Lee, Jin-Sook Song, Myung Ae Bae, Donghyun Lim, Dong-Sup Lee, Seung Bum Park
Sepsis is one of the major causes of death worldwide when associated with multiple organ failure. However, there is a critical lack of adequate sepsis therapies because of its diverse patterns of pathogenesis. The pro-inflammatory cytokine cascade mediates sepsis pathogenesis, and high mobility group box proteins (HMGBs) play an important role as late-stage cytokines. We previously reported the small-molecule modulator, inflachromene (1d), which inhibits the release of HMGBs and, thereby, reduces the production of pro-inflammatory cytokines...
December 21, 2016: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/27994910/resveratrol-protects-sepsis-induced-oxidative-dna-damage-in-liver-and-kidney-of-rats
#18
Sevtap Aydın, Tevfik Tolga Şahin, Merve Bacanlı, Gökçe Taner, Arif Ahmet Başaran, Mehtap Aydın, Nurşen Başaran
BACKGROUND: The increases of free radicals have been proposed to be involved in the pathogenesis of sepsis, which leads to multiple-organ dysfunction syndromes. The uses of antioxidants as a complementary tool in the medical care of oxidative stress-related diseases have attracted attention of researchers. Resveratrol (RV) has suggested being antioxidant, anti-proliferative, and anti-inflammatory effects in various experimental models and clinical settings. AIMS: This study was undertaken to evaluate the protective effects of RV on oxidative DNA damage induced by sepsis in the liver and kidney tissues of Wistar albino rats...
November 2016: Balkan Medical Journal
https://www.readbyqxmd.com/read/27993201/antithrombin-iii-improved-neutrophil-extracellular-traps-in-lung-after-the-onset%C3%A2-of%C3%A2-endotoxemia
#19
Michiko Ishikawa, Hayato Yamashita, Nobuki Oka, Takahiro Ueda, Keisuke Kohama, Atsunori Nakao, Joji Kotani
BACKGROUND: Coagulation and inflammation are closely linked during acute inflammatory conditions, such as sepsis. Antithrombin (AT) is an anticoagulant that also has anti-inflammatory activities. The effects of therapeutically administering AT III after the onset of endotoxemia or sepsis were not clear. Here, we studied the effects of administering AT III after inducing lethal endotoxemia in mice. METHODS: Mice were injected intraperitoneally with lipopolysaccharide (LPS) to induce endotoxemia...
February 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/27979692/therapeutic-potential-and-limitations-of-cholinergic-anti-inflammatory-pathway-in-sepsis
#20
REVIEW
Alexandre Kanashiro, Fabiane Sônego, Raphael G Ferreira, Fernanda V S Castanheira, Caio A Leite, Vanessa F Borges, Daniele C Nascimento, David F Cólon, José Carlos Alves-Filho, Luis Ulloa, Fernando Q Cunha
Sepsis is one of the main causes of mortality in hospitalized patients. Despite the recent technical advances and the development of novel generation of antibiotics, severe sepsis remains a major clinical and scientific challenge in modern medicine. Unsuccessful efforts have been dedicated to the search of therapeutic options to treat the deleterious inflammatory components of sepsis. Recent findings on neuronal networks controlling immunity raised expectations for novel therapeutic strategies to promote the regulation of sterile inflammation, such as autoimmune diseases...
December 12, 2016: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
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