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https://www.readbyqxmd.com/read/28650775/urine-interleukin-18-il-18-as-a-biomarker-of-total-body-irradiation-a-preliminary-study-in-nonhuman-primates
#1
Mang Xiao, David L Bolduc, XiangHong Li, Wanchang Cui, Kevin P Hieber, Rolf Bünger, Natalia I Ossetrova
We have reported that circulating IL-18 can be used as a radiation biomarker in mice, minipigs and nonhuman primates (NHPs, Macaca mulatta). Here, we report the levels of IL-18 in individual NHP's urine before and at 6 h-7 days after 5.0, 6.5 and 8.5 Gy (60)Co total-body irradiation (TBI) using enzyme linked immunosorbent assay (ELISA). Six animals (3.5-5.5 kg, 3-4 years old) per radiation dose were investigated. Correlation values between urine IL-18 and blood cell counts and serum chemistry parameters including lactate dehydrogenase (LDH), lipase, and serum total protein (TP), as well as between urine IL-18 and 60-day survival, were analyzed...
June 26, 2017: Radiation Research
https://www.readbyqxmd.com/read/28646861/c-terminal-fragment-of-agrin-caf-levels-predict-acute-kidney-injury-after-acute-myocardial-infarction
#2
Spyridon Arampatzis, Georgios Chalikias, Vasilios Devetzis, Stavros Konstantinides, Uyen Huynh-Do, Dimitrios Tziakas
BACKGROUND: Patients with acute myocardial infarction are at high risk for acute kidney injury. Novel biomarkers that can predict acute kidney injury in AMI may allow timely interventions. C-terminal fragment of agrin (CAF), a proteoglycan of the glomerular and tubular basement membrane, have been recently associated with rapid renal function deterioration and proximal tubular dysfunction. It is unknown whether elevated CAF levels may serve as a novel AKI biomarker in patients presenting with AMI...
June 24, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28646209/upregulation-of-circulating-microrna-134-in-adult-onset-still-s-disease-and-its-use-as-potential-biomarker
#3
Tsai-Ling Liao, Yi-Ming Chen, Chia-Wei Hsieh, Hsin-Hua Chen, Hsiu-Chin Lee, Wei-Ting Hung, Kuo-Tung Tang, Der-Yuan Chen
Adult-onset Still's disease (AOSD) is a multi-systemic inflammatory disorder of unknown etiology. To date, no single diagnostic test is available for AOSD. Herein, we investigated the pathogenic role of microRNAs in AOSD. MicroRNA profiles in plasma from AOSD patients and healthy controls were analyzed by microarray analysis, followed by quantitative reverse transcription PCR validation. The biological functions of microRNAs were evaluated using in vitro cell-based assay. Among the differentially expressed microRNAs, microRNA-134 (miR-134) expression was positively correlated with AOSD activity scores and significantly decreased after effective treatment...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28644973/il-18-il-15-il-12-synergy-induces-elevated-and-prolonged-ifn-%C3%AE-production-by-ex-vivo-expanded-nk-cells-which-is-not-due-to-enhanced-stat4-activation
#4
Evan Lusty, Sophie M Poznanski, Karen Kwofie, Talveer S Mandur, Dean A Lee, Carl D Richards, Ali A Ashkar
The synergistic effect of IL-18/IL-15/IL-12 stimulation potently activates NK cells, inducing high levels of IFN-γ production. As a result of this potent stimulatory effect, NK cell pre-activation with IL-18/IL-15/IL-12 is being developed as a cancer immunotherapy. Ex vivo expansion of NK cells enables the efficient generation of large numbers of NK cells for wide-scale and repeated therapeutic use, and is thus an important source of NK cells for clinical application. However, the effects of IL-18/IL-15/IL-12 stimulation on ex vivo expanded NK cells have not yet been assessed...
June 20, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28643232/caffeine-protects-against-anticonvulsant-induced-neurotoxicity-in-the-developing-rat-brain
#5
Stefanie Endesfelder, Ulrike Weichelt, Cornelia Schiller, Marco Sifringer, Ivo Bendix, Christoph Bührer
Phenobarbital is the most commonly used drug for the treatment of neonatal seizures but may induce neurodegeneration in the developing brain. Methylxanthine caffeine is used for the treatment of apnea in newborn infants and appears to be neuroprotective, as shown by antiapoptotic and anti-inflammatory effects in oxidative stress models in newborn rodents and reduced rates of cerebral palsy in human infants treated with caffeine. We hypothesized that caffeine may counteract the proapoptotic effects of phenobarbital in newborn rats...
June 22, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28642110/pedf-plus-dha-modulate-inflammation-and-stimulate-nerve-regeneration-after-hsv-1-infection
#6
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/28638741/innate-%C3%AE-%C3%AE-t17-cells-play-a-protective-role-in-dss-induced-colitis-via-recruitment-of-gr-1-cd11b-myeloid-suppressor-cells
#7
Xuan Sun, Yihua Cai, Chris Fleming, Zan Tong, Zhenglong Wang, Chuanlin Ding, Minye Qu, Huang-Ge Zhang, Jian Suo, Jun Yan
Innate γδ T cells play critical roles in mucosal immunity such as regulating intestinal epithelial homeostasis. In addition, γδ T cells are significantly increased in the inflamed mucosa of patients with ulcerative colitis. However, γδ T cells are a heterogeneous population. IL-17-producing versus IFNγ-producing γδ T cells play differential roles in different disease settings. Therefore, dissecting the exact role of different subsets of γδ T cells in colitis is essential for understanding colitis immunopathogenesis...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28637471/enhanced-humoural-and-cellular-immune-responses-to-influenza-h7n9-antigen-ha1-2-fused-with-flagellin-in-chickens
#8
Li Song, Dan Xiong, Maozhi Hu, Xilong Kang, Zhiming Pan, Xinan Jiao
BACKGROUND: Sudden increases in the number of human A (H7N9) cases reported during December and January have been observed in previous years. Most reported infection cases are due to prior exposure to live poultry or potentially contaminated environments. Low pathogenicity of influenza A (H7N9) virus in avian species complicates timely discovery of infected birds. Therefore, there is a pressing need to develop safe and effective anti-H7N9 vaccines for poultry to reduce the risk of human infection and prevent the emergence of novel mutated strains...
June 21, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28636613/in-vivo-immune-signatures-of-healthy-human-pregnancy-inherently-inflammatory-or-anti-inflammatory
#9
Caroline Graham, Rishma Chooniedass, William P Stefura, Allan B Becker, Malcolm R Sears, Stuart E Turvey, Piush J Mandhane, Padmaja Subbarao, Kent T HayGlass
Changes in maternal innate immunity during healthy human pregnancy are not well understood. Whether basal immune status in vivo is largely unaffected by pregnancy, is constitutively biased towards an inflammatory phenotype (transiently enhancing host defense) or exhibits anti-inflammatory bias (reducing potential responsiveness to the fetus) is unclear. Here, in a longitudinal study of healthy women who gave birth to healthy infants following uncomplicated pregnancies within the Canadian Healthy Infant Longitudinal Development (CHILD) cohort, we test the hypothesis that a progressively altered bias in resting innate immune status develops...
2017: PloS One
https://www.readbyqxmd.com/read/28636595/nlrp9b-inflammasome-restricts-rotavirus-infection-in-intestinal-epithelial-cells
#10
Shu Zhu, Siyuan Ding, Penghua Wang, Zheng Wei, Wen Pan, Noah W Palm, Yi Yang, Hua Yu, Hua-Bing Li, Geng Wang, Xuqiu Lei, Marcel R de Zoete, Jun Zhao, Yunjiang Zheng, Haiwei Chen, Yujiao Zhao, Kellie A Jurado, Ningguo Feng, Liang Shan, Yuval Kluger, Jun Lu, Clara Abraham, Erol Fikrig, Harry B Greenberg, Richard A Flavell
Rotavirus, a leading cause of severe gastroenteritis and diarrhoea in young children, accounts for around 215,000 deaths annually worldwide. Rotavirus specifically infects the intestinal epithelial cells in the host small intestine and has evolved strategies to antagonize interferon and NF-κB signalling, raising the question as to whether other host factors participate in antiviral responses in intestinal mucosa. The mechanism by which enteric viruses are sensed and restricted in vivo, especially by NOD-like receptor (NLR) inflammasomes, is largely unknown...
June 21, 2017: Nature
https://www.readbyqxmd.com/read/28636561/il-18-polymorphisms-contribute-to-hepatitis-b-virus-related-cirrhosis-and-hepatocellular-carcinoma-susceptibility-in-chinese-population-a-case-control-study
#11
Zhi-Jun Dai, Xing-Han Liu, Meng Wang, Yan Guo, Wenge Zhu, Xiao Li, Shuai Lin, Tian Tian, Kang Liu, Yi Zheng, Peng Xu, Tianbo Jin, Xiaopeng Li
IL-18 polymorphisms influence the transcriptional activity of the IL-18 gene and associated with various diseases. However, their relationships with hepatitis B virus-related liver diseases had not reached a consensus. So we conducted this case-control study with a view to clarifying the association. We included four groups: healthy controls, chronic hepatitis B virus (CHB) carriers, liver cirrhosis (LC) and hepatocellular carcinoma (HCC) groups with each group of 250 persons. Odd ratios (ORs) and 95% confidence intervals (95%CIs) with or without adjustment were calculated...
June 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/28633138/combined-stimulation-with-interleukin-18-and-interleukin-12-potently-induces-interleukin-8-production-by-natural-killer-cells
#12
Sophie M Poznanski, Amanda J Lee, Tina Nham, Evan Lusty, Margaret J Larché, Dean A Lee, Ali A Ashkar
The combination of interleukin (IL)-18 and IL-12 (IL-18+IL-12) potently stimulates natural killer (NK) cells, triggering an innate immune response to infections and cancers. Strategies exploiting the effects of IL-18+IL-12 have shown promise for cancer immunotherapy. However, studies have primarily characterized the NK cell response to IL-18+IL-12 in terms of interferon (IFN)-γ production, with little focus on other cytokines produced. IL-8 plays a critical role in activating and recruiting immune cells, but it also has tumor-promoting functions...
June 21, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28632753/mait-cells-launch-a-rapid-robust-and-distinct-hyperinflammatory-response-to-bacterial-superantigens-and-quickly-acquire-an-anergic-phenotype-that-impedes-their-cognate-antimicrobial-function-defining-a-novel-mechanism-of-superantigen-induced-immunopathology
#13
Christopher R Shaler, Joshua Choi, Patrick T Rudak, Arash Memarnejadian, Peter A Szabo, Mauro E Tun-Abraham, Jamie Rossjohn, Alexandra J Corbett, James McCluskey, John K McCormick, Olivier Lantz, Roberto Hernandez-Alejandro, S M Mansour Haeryfar
Superantigens (SAgs) are potent exotoxins secreted by Staphylococcus aureus and Streptococcus pyogenes. They target a large fraction of T cell pools to set in motion a "cytokine storm" with severe and sometimes life-threatening consequences typically encountered in toxic shock syndrome (TSS). Given the rapidity with which TSS develops, designing timely and truly targeted therapies for this syndrome requires identification of key mediators of the cytokine storm's initial wave. Equally important, early host responses to SAgs can be accompanied or followed by a state of immunosuppression, which in turn jeopardizes the host's ability to combat and clear infections...
June 2017: PLoS Biology
https://www.readbyqxmd.com/read/28631997/expression-and-purification-of-a-functional-porcine-soluble-triggering-receptor-expressed-on-myeloid-cells-1
#14
Hui Li, Shuangshuang Guo, Leyan Yan, Chunhua Meng, Yiyi Hu, Kongwang He, Zhendan Shi
Triggering receptor expressed on myeloid cells 1 (TREM-1) plays a vital role in the pathogen-triggered amplification loop required for proinflammatory responses. Blockade of TREM-1 signaling may inhibit expansion of sepsis and prolong survival of animals. In the present study, the gene of porcine soluble TREM-1 was cloned and expressed in E. coli. After purification, the bioactivity of recombinant porcine soluble TREM-1 was tested in vitro on porcine alveolar macrophages. The results showed that supplementation with the recombinant porcine sTREM-1 protein rapidly and dose-dependently attenuated the upregulation of cytokines (IL-1β, IL-2, IL-4, IL-8, IL-10, IL-12, IL-16, IL-18, and TNF-α) caused by LPS stimulation in the cultured porcine alveolar macrophages...
February 10, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28631245/hypoxia-and-inflammation-in-the-release-of-vegf-and-interleukins-from-human-retinal-pigment-epithelial-cells
#15
Olli Arjamaa, Vesa Aaltonen, Niina Piippo, Tamás Csont, Goran Petrovski, Kai Kaarniranta, Anu Kauppinen
PURPOSE: Retinal diseases are closely associated with both decreased oxygenation and increased inflammation. It is not known if hypoxia-induced vascular endothelial growth factor (VEGF) expression in the retina itself evokes inflammation, or whether inflammation is a prerequisite for the development of neovascularization. METHODS: Human ARPE-19 cell line and primary human retinal pigment epithelium (RPE) cells were used. ARPE-19 cells were kept either under normoxic (24 h or 48 h) or hypoxic conditions (1% O2, 24 h)...
June 19, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28630342/autoantibody-profiling-on-a-plasmonic-nano-gold-chip-for-the-early-detection-of-hypertensive-heart-disease
#16
Xiaoyang Li, Tatiana Kuznetsova, Nicholas Cauwenberghs, Matthew Wheeler, Holden Maecker, Joseph C Wu, Francois Haddad, Hongjie Dai
The role of autoimmunity in cardiovascular (CV) diseases has been increasingly recognized. Autoimmunity is most commonly examined by the levels of circulating autoantibodies in clinical practices. Measurement of autoantibodies remains, however, challenging because of the deficiency of reproducible, sensitive, and standardized assays. The lack of multiplexed assays also limits the potential to identify a CV-specific autoantibody profile. To overcome these challenges, we developed a nanotechnology-based plasmonic gold chip for autoantibody profiling...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28630305/multiple-layers-of-heterogeneity-and-subset-diversity-in-human-mait-cell-responses-to-distinct-microorganisms-and-to-innate-cytokines
#17
Joana Dias, Edwin Leeansyah, Johan K Sandberg
Mucosa-associated invariant T (MAIT) cells are a large innate-like T-cell subset in humans defined by invariant TCR Vα7.2 use and expression of CD161. MAIT cells recognize microbial riboflavin metabolites of bacterial or fungal origin presented by the monomorphic MR1 molecule. The extraordinary level of evolutionary conservation of MR1 and the limited known diversity of riboflavin metabolite antigens have suggested that MAIT cells are relatively homogeneous and uniform in responses against diverse microbes carrying the riboflavin biosynthesis pathway...
June 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28625442/the-effect-of-dexmedetomidine-on-renal-function-in-patients-undergoing-cardiac-valve-replacement-under-cardiopulmonary-bypass-a-double-blind-randomized-controlled-trial
#18
Mingyu Zhai, Fang Kang, Mingming Han, Xiang Huang, Juan Li
STUDY OBJECTIVE: We attempted to explore the effect of Dex on renal function in patients with cardiac valve replacement under cardiopulmonary bypass (CPB). DESIGN: We designed a prospective, randomized, placebo-controlled, single-center, parallel-arm double-blind trial. SETTING: Operating room. PATIENTS: Seven-two eligible patients were randomly divided into Dex group and placebo group. INTERVENTIONS: Dexmedetomidine (Dex) (0...
August 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28623707/the-role-of-pon-1-gr-il-18-and-oxldl-in-depression-with-and-without-posttraumatic-stress-disorder
#19
Ewa A Ogłodek
BACKGROUND: Both oxidative stress markers and inflammatory markers are important when diagnosing depression. Oxidative stress occurs due to an imbalance between free radical generation and antioxidant potential. Both adenosine triphosphate and reactive oxygen/nitrogen species are released during oxidative phosphorylation. When neuroinflammation and free radical production are increased, oxidative stress occurs and causes damage to all major cellular macromolecules. The aim of the study was to compare the concentrations of paraoxonase-1 (PON-1), glutathione reductase (GR), interleukin-18 (IL-18), and oxidized low-density lipoproteins (OxLDL) in depressed patients with and without posttraumatic stress disorder (PTSD), and PTSD alone...
March 27, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/28621671/association-study-of-inflammatory-cytokine-and-chemokine-expression-in-hand-foot-and-mouth-disease
#20
Wenzhong Shang, Suying Qian, Lijuan Fang, Yong Han, Cuiping Zheng
OBJECTIVE: To determine the relationship of cytokine/chemokine expression with the clinical presentation of hand, foot and mouth disease (HFMD). RESULTS: All cytokine/chemokine levels were higher in severe HFMD patients than in mild HFMD patients or controls (P < 0.01). RANTES, MCP-1, IL-4, IL-12 and IL-18 levels were higher in mild HFMD patients than in the controls (P < 0.05). In severe HFMD, all levels (except IL-8 and IL-4) were higher in patients with encephalitis plus pulmonary edema than in those with encephalitis alone (P < 0...
June 2, 2017: Oncotarget
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