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Mrp8/14

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https://www.readbyqxmd.com/read/27835952/lipoprotein-cholesterol-fractions-are-related-to-markers-of-inflammation-in-children-and-adolescents-with-juvenile-idiopathic-arthritis-a-cross-sectional-study
#1
Anna-Helene Bohr, Freddy Karup Pedersen, Claus Henrik Nielsen, Klaus Gottlob Müller
BACKGROUND: The purpose of the study is to determine levels of total cholesterol (TC), low-density, and high-density lipoprotein fractions of cholesterol (LDLc and HDLc), in patients with juvenile idiopathic arthritis (JIA), and relate those to disease activity, overweight, and physical activity (PA), testing the hypothesis that the levels of cholesterol fractions are associated with inflammation as well as with overweight and low PA. METHODS: Two hundred ten patients with JIA were included in this descriptive cross-sectional study...
November 11, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27738838/elevated-levels-of-serum-mrp8-14-in-ankylosing-spondylitis-associated-with-peripheral-arthritis-and-active-disease
#2
Latika Gupta, Shruti Bhattacharya, Vikas Agarwal, Amita Aggarwal
Monocytes of patients with ankylosing spondylitis (AS) have toll-like receptor 4 (TLR4) overexpression on their monocytes. Myeloid-related protein (MRP) 8/14 protein complexes are calcium-binding proteins, which act as endogenous ligands to TLR4. Thus, we studied the levels of MRP8/14 in adult AS patients. MRP8/14 levels were assessed in 99 adult AS patients satisfying Assessments in Ankylosing Spondylitis International Society 2010 criteria and 71 healthy controls by ELISA. Patient disease parameters like patient and physician global assessment, Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), swollen and tender joint count, entheseal count by Maastricht enthesitis index, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) were also recorded...
October 13, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27711184/a-plaque-disruption-index-identifies-patients-with-non-ste-type-1-myocardial-infarction-within-24-hours-of-troponin-positivity
#3
Maha A Al-Mohaissen, Ronald G Carere, G B John Mancini, Karin H Humphries, Beth A Whalen, Terry Lee, Frank X Scheuermeyer, Andrew P Ignaszewski
BACKGROUND: Markers of plaque destabilization and disruption may have a role in identifying non-STE- type 1 Myocardial Infarction in patients presenting with troponin elevation. We hypothesized that a plaque disruption index (PDI) derived from multiple biomarkers and measured within 24 hours from the first detectable troponin in patients with acute non-STE- type 1 MI (NSTEMI-A) will confirm the diagnosis and identify these patients with higher specificity when compared to individual markers and coronary angiography...
2016: PloS One
https://www.readbyqxmd.com/read/27660000/potential-of-ca-2-in-mycobacterium-tuberculosis-h37rv-pathogenesis-and-survival
#4
Somya Sharma, Laxman S Meena
The host-pathogen interaction and involvement of calcium (Ca(2+)) signaling in tuberculosis infection is crucial and plays a significant role in pathogenesis. Ca(2+) is known as a ubiquitous second messenger that could control multiple processes and is included in cellular activities like division, motility, stress response, and signaling. However, Ca(2+) is thought to be a regulative molecule in terms of TB infection but its binding relation with proteins/substrates molecules which are influenced with Ca(2+) concentrations in host-pathogen interaction requires attention...
September 22, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27629827/a-novel-turbidimetric-immunoassay-for-fecal-calprotectin-optimized-for-routine-chemistry-analyzers
#5
Tom Nilsen, Kathrin Sunde, Lars-Olof Hansson, Aleksandra Mandic Havelka, Anders Larsson
BACKGROUND: Fecal calprotectin assays are widely used to exclude inflammatory bowel disease (IBD) in patients with suspected IBD. A problem with the fecal calprotectin assays is the rather long test-turnaround times. A particle enhanced turbidimetric immunoassays (PETIA) for fecal calprotectin would reduce test-turnaround times and would permit more laboratories to perform the measurements. The aim of this study was to evaluate a new feces calprotectin PETIA. METHOD: Using routine fecal samples the feces calprotectin PETIA was validated on two chemistry analyzers, Mindray BS-380 and Cobas 501...
September 15, 2016: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/27492899/s100a8-a9-from-basic-science-to-clinical-application
#6
Monika Pruenster, Thomas Vogl, Johannes Roth, Markus Sperandio
Neutrophils and monocytes belong to the first line of immune defence cells and are recruited to sites of inflammation during infection or sterile injury. Both cells contain huge amounts of the heterodimeric protein S100A8/A9 in their cytoplasm. S100A8/A9 belongs to the Ca(2+) binding S100 protein family and has recently gained a lot of interest as a critical alarm in modulating the inflammatory response after its release (extracellular S100A8/A9) from neutrophils and monocytes. Extracellular S100A8/A9 interacts with the pattern recognition receptors Toll-like receptor 4 (TLR4) and Receptor for Advanced Glycation Endproducts (RAGE) promoting cell activation and recruitment...
August 1, 2016: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/27464597/alarming-consequences-autoinflammatory-disease-spectrum-due-to-mutations-in-proline-serine-threonine-phosphatase-interacting-protein-1
#7
Dirk Holzinger, Johannes Roth
PURPOSE OF REVIEW: To give an overview about the expanding spectrum of autoinflammatory diseases due to mutations in proline-serine-threonine phosphatase-interacting protein 1 (PSTPIP1) and new insights into their pathogenesis. RECENT FINDINGS: In addition to classical pyogenic sterile arthritis, pyoderma gangrenosum, and acne (PAPA) syndrome, PSTPIP1-associated myeloid-related proteinemia inflammatory (PAMI) syndrome has been described as a distinct clinical phenotype of PSTPIP1-associated inflammatory diseases (PAID) and other entities are emerging...
September 2016: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/27224926/deficiency-of-myeloid-related-proteins-8-and-14-mrp8-mrp14-does-not-block-inflammaging-but-prevents-steatosis
#8
William R Swindell, Xianying Xing, Yi Fritz, Doina Diaconu, Daniel I Simon, Nicole L Ward, Johann E Gudjonsson
The Mrp8 and Mrp14 proteins (calprotectin) accumulate within tissues during aging and may contribute to chronic inflammation. To address this possibility, we evaluated female calprotectin-deficient Mrp14-KO and wild-type (WT) mice at 5 and 24 months of age. However, there was no evidence that age-related inflammation is blunted in KO mice. Inflammation markers were in fact elevated in livers from old KO mice, and microarray analysis revealed more consistent elevation of genes specifically expressed by B-cells and T-cells...
June 14, 2016: Oncotarget
https://www.readbyqxmd.com/read/27029006/a-personalized-approach-to-biological-therapy-using-prediction-of-clinical-response-based-on-mrp8-14-serum-complex-levels-in-rheumatoid-arthritis-patients
#9
S C Nair, P M J Welsing, I Y K Choi, J Roth, D Holzinger, J W J Bijlsma, J M van Laar, D M Gerlag, F P J G Lafeber, P P Tak
OBJECTIVES: Measurement of MRP8/14 serum levels has shown potential in predicting clinical response to different biological agents in rheumatoid arthritis (RA). We aimed to develop a treatment algorithm based on a prediction score using MRP8/14 measurements and clinical parameters predictive for response to different biological agents. METHODS: Baseline serum levels of MRP8/14 were measured in 170 patients starting treatment with infliximab, adalimumab or rituximab...
2016: PloS One
https://www.readbyqxmd.com/read/27022611/the-correlation-of-serum-myeloid-related-protein-8-14-and-eosinophil-cationic-protein-in-patients-with-coronary-artery-disease
#10
Guo-lian Xia, Yun-kai Wang, Zhao-quan Huang
OBJECTIVE: To investigate the changes in serum Myeloid-Related Protein 8/14 (MRP8/14) and Eosinophil Cationic Protein (ECP) levels in patients with different types of coronary artery diseases (CAD) and assess the value of MRP8/14 and ECP detection in predicting CAD. METHODS: 178 patients were divided into CAD group including unstable angina pectoris (UAP), acute myocardial infarction (AMI), and stable angina pectoris (SAP). Thirty-six individuals with normal coronary artery served as the control group...
2016: BioMed Research International
https://www.readbyqxmd.com/read/26891373/serum-myeloid-related-protein-8-14-level-in-minimal-change-and-glomerulonephritis-related-nephrotic-syndrome
#11
Shinichiro Ohara, Yukihiko Kawasaki, Ryo Maeda, Syuto Kanno, Yuichi Suzuki, Kazuhide Suyama, Mitsuaki Hosoya
BACKGROUND: Myeloid-related protein 8/14 (MRP8/14) forms stable heterodimers and is the major calcium-binding protein secreted by activated granulocytes and monocytes. We evaluated whether serum MRP8/14 level is a useful indicator for the differential diagnosis between glomerulonephritis (GN)- and minimal change disease (MC)- related nephrotic syndrome (NS). METHODS: We evaluated serum MRP8/14 complex levels in 37 NS patients with MC or GN. These patients were divided into two groups...
February 18, 2016: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/26834220/myeloid-related-protein-8-14-levels-in-rheumatoid-arthritis-marker-of-disease-activity-and-response-to-methotrexate
#12
Pradeepta Sekhar Patro, Ankita Singh, Ramnath Misra, Amita Aggarwal
OBJECTIVE: Myeloid-related proteins (MRP) 8/14 belong to a family of calcium-binding proteins produced by myeloid cells. Baseline serum levels of MRP8/14 have been shown to predict response to biologicals in rheumatoid arthritis (RA). Because methotrexate (MTX) is the first-line therapy in RA, we studied whether MRP8/14 levels can predict response to MTX. METHODS: Patients with active RA disease who were naive to disease-modifying antirheumatic drugs were enrolled...
April 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/26512051/sleep-fragmentation-and-biomarkers-in-juvenile-idiopathic-arthritis
#13
Teresa M Ward, Weichao Yuwen, Joachim Voss, Dirk Foell, Faekah Gohar, Sarah Ringold
OBJECTIVES: (1) To compare sleep (nighttime sleep duration and sleep efficiency) and sleep fragmentation (movement and fragmentation index), as measured by actigraphy, and symptoms (pain and fatigue) in 8- to 14-year-old children with polyarticular and extended oligoarticular juvenile idiopathic arthritis (JIA) and (2) to examine the associations between sleep fragmentation (movement and fragmentation index) and the calcium-binding protein biomarkers S100A12 and myeloid-related protein (MRP8/14)...
May 2016: Biological Research for Nursing
https://www.readbyqxmd.com/read/26472105/the-diagnostic-and-prognostic-value-of-mrp8-mrp14-in-intrahepatic-cholangiocarcinoma
#14
Guang-Zhi Jin, Wei Dong, Hui Dong, Hua Yu, Jia Chen, Wen-Long Yu, Ai-Jun Li, Wen-Ming Cong, Meng-Chao Wu
Myeloid-related protein 8 (MRP8) and 14 (MRP14) are abundantly expressed in several kinds of benign and malignant tumors. However, little is known about their clinicopathological significance in intrahepatic cholangiocarcinoma (ICC), biliary intraepithelial neoplasia (BilIN), intraductal papillary neoplasm of bile duct (IPNB), or inflammatory hepatic biliary ducts epithelium (IHBD). This study aimed to investigate the diagnostic and prognostic values of MRP8 and MRP14 as new biomarkers for ICC. We examined MRP8 and MRP14 expression levels by immunohistochemistry in IHBD (n = 15), BilIN (BilIN1 = 24, BilIN2 = 9, BilIN3 = 5), IPNB (n = 18) and ICC (n = 416)...
November 17, 2015: Oncotarget
https://www.readbyqxmd.com/read/26470711/interaction-of-titanium-zirconia-and-lithium-disilicate-with-peri-implant-soft-tissue-study-protocol-for-a-randomized-controlled-trial
#15
RANDOMIZED CONTROLLED TRIAL
Katharina Kuhn, Heike Rudolph, Michael Graf, Matthias Moldan, Shaoxia Zhou, Martin Udart, Andrea Böhmler, Ralph G Luthardt
BACKGROUND: Against the background of increasing use of dental implants, and thus an increasing prevalence of implant-associated complications, a deeper understanding of the biomolecular mechanisms in the peri-implant tissue is needed. Peri-implant soft tissue is in direct contact with transmucosal dental implant abutments. The aim of this trial is to distinguish the biomolecular and histological interactions of various dental abutment materials with peri-implant soft tissue. METHODS/DESIGN: The study is designed as a prospective, randomized, investigator-initiated clinical pilot trial with blinded assessment...
October 15, 2015: Trials
https://www.readbyqxmd.com/read/26373925/serum-calprotectin-s100a8-9-an-independent-predictor-of-ultrasound-synovitis-in-patients-with-rheumatoid-arthritis
#16
Jana Hurnakova, Jakub Zavada, Petra Hanova, Hana Hulejova, Martin Klein, Herman Mann, Olga Sleglova, Marta Olejarova, Sarka Forejtova, Olga Ruzickova, Martin Komarc, Jiri Vencovsky, Karel Pavelka, Ladislav Senolt
INTRODUCTION: Calprotectin, a heterodimeric complex of S100A8/9 (MRP8/14), has been proposed as an important serum biomarker that reflects disease activity and structural joint damage in rheumatoid arthritis (RA). The objective of this cross-sectional study was to test the hypothesis that calprotectin is associated with clinical and ultrasound-determined disease activity in patients with RA. METHODS: A total of 37 patients with RA (including 24 females, a mean disease duration of 20 months) underwent a clinical examination and 7-joint ultrasound score (German US-7) of the clinically dominant hand and foot to assess synovitis by grey-scale (GS) and synovial vascularity by power Doppler (PD) ultrasound using semiquantitative 0-3 grading...
September 15, 2015: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/26329314/myeloid-related-protein-8-induces-self-tolerance-and-cross-tolerance-to-bacterial-infection-via-tlr4-and-tlr2-mediated-signal-pathways
#17
Andrew P Coveney, Wei Wang, Justin Kelly, Jing Hua Liu, Siobhan Blankson, Qiong Di Wu, H Paul Redmond, Jiang Huai Wang
Myeloid-related protein 8 (Mrp8) is the active component of Mrp8/14 protein complex released by phagocytes at the site of infection and stimulates inflammatory responses. However, it is unclear whether Mrp8 could induce self-tolerance and cross-tolerance to bacterial infection. Here we report that Mrp8 triggered TNF-α and IL-6 release via a Toll-like receptor 4 (TLR4)-dependent manner. Pre-stimulation of murine macrophages and human monocytes with Mrp8 induced self-tolerance to Mrp8 re-stimulation and cross-tolerance to lipopolysaccharide (LPS), bacterial lipoprotein (BLP), gram-negative and gram-positive bacterial challenges, with substantially attenuated TNF-α and IL-6 release...
2015: Scientific Reports
https://www.readbyqxmd.com/read/26249667/mrp8-14-serum-levels-as-a-predictor-of-response-to-starting-and-stopping-anti-tnf-treatment-in-juvenile-idiopathic-arthritis
#18
MULTICENTER STUDY
Janneke Anink, Lisette W A Van Suijlekom-Smit, Marieke H Otten, Femke H M Prince, Marion A J van Rossum, Koert M Dolman, Esther P A H Hoppenreijs, Rebecca ten Cate, Simona Ursu, Lucy R Wedderburn, Gerd Horneff, Michael Frosch, Thomas Vogl, Faekah Gohar, Dirk Foell, Johannes Roth, Dirk Holzinger
INTRODUCTION: Approximately 30% of juvenile idiopathic arthritis (JIA) patients fail to respond to anti-TNF treatment. When clinical remission is induced, some patients relapse after treatment has been stopped. We tested the predictive value of MRP8/14 serum levels to identify responders to treatment and relapse after discontinuation of therapy. METHODS: Samples from 88 non-systemic JIA patients who started and 26 patients who discontinued TNF-blockers were analyzed...
2015: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/26248007/gout-is-a-chronic-inflammatory-disease-in-which-high-levels-of-interleukin-8-cxcl8-myeloid-related-protein-8-myeloid-related-protein-14-complex-and-an-altered-proteome-are-associated-with-diabetes-mellitus-and-cardiovascular-disease
#19
Laura B E Kienhorst, Ellen van Lochem, Wietske Kievit, Nicola Dalbeth, Marilyn E Merriman, Amanda Phipps-Green, Arnoud Loof, Waander van Heerde, Sita Vermeulen, Lisa K Stamp, Elly van Koolwijk, Jacqueline de Graaf, Dirk Holzinger, Johannes Roth, Hein J E M Janssens, Tony R Merriman, Jasper C A Broen, Matthijs Janssen, Timothy R D J Radstake
OBJECTIVE: The frequent association of gout with metabolic syndrome and cardiovascular disease (CVD) suggests that it has a systemic component. Our objective was to study whether circulating proinflammatory cytokines are associated with comorbidities in gout patients. METHODS: We studied 330 gout patients from 3 independent cohorts and compared them with 144 healthy individuals and 276 disease controls. We measured circulating levels of interleukin-8 (IL-8)/CXCL8, IL-1β, IL-6, IL-10, IL-12, and tumor necrosis factor, after which we performed proteome-wide analysis in a selection of samples to identify proteins that were possibly prognostic for the development of comorbidities...
December 2015: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/26213499/a-new-turbidimetric-immunoassay-for-serum-calprotectin-for-fully-automatized-clinical-analysers
#20
Tom Nilsen, Kathrin Sunde, Anders Larsson
Serum and plasma calprotectin concentration is shown to be elevated when neutrophils are activated, and may therefore be used as a marker for inflammatory diseases. A serum calprotectin immunoassay was developed based on calprotectin values observed in samples from the intensive care unit. The polyclonal avian antibodies were raised and affinity purified with calprotectin antigens. The performance was tested and it was observed that the assay was linear in the range 0.3-24.7 mg/L, the limit of quantitation was observed to be lower than 0...
2015: Journal of Inflammation
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