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Serum citrulline

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https://www.readbyqxmd.com/read/29777721/pentraxins-crp-i-and-crp-ii-are-post-translationally-deiminated-and-differ-in-tissue-specificity-in-cod-gadus-morhua-l-ontogeny
#1
Bergljót Magnadóttir, Polly Hayes, Berglind Gísladóttir, Birkir Þór Bragason, Mariya Hristova, Anthony P Nicholas, Sigríður Guðmundsdóttir, Sigrun Lange
Pentraxins are fluid phase pattern recognition molecules that form an important part of the innate immune defence and are conserved between fish and human. In Atlantic cod (Gadus morhua L.), two pentraxin-like proteins have been described, CRP-I and CRP-II. Here we show for the first time that these two CRP forms are post-translationally deiminated (an irreversible conversion of arginine to citrulline) and differ with respect to tissue specific localisation in cod ontogeny from 3 to 84 days post hatching. While both forms are expressed in liver, albeit at temporally differing levels, CRP-I shows a strong association with nervous tissue while CRP-II is strongly associated to mucosal tissues of gut and skin...
May 16, 2018: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/29773079/effects-of-linagliptin-on-endothelial-function-and-postprandial-lipids-in-coronary-artery-disease-patients-with-early-diabetes-a-randomized-placebo-controlled-double-blind-trial
#2
Norbert J Tripolt, Felix Aberer, Regina Riedl, Jasmin Url, Gudrun Dimsity, Andreas Meinitzer, Tatjana Stojakovic, Faisal Aziz, Ronald Hödl, Gabriele Brachtl, Dirk Strunk, Marianne Brodmann, Franz Hafner, Harald Sourij
BACKGROUND: Early glucose lowering intervention in subjects with type 2 diabetes mellitus was demonstrated to be beneficial in terms of micro- and macrovascular risk reduction. However, most of currently ongoing cardiovascular outcome trials are performed in subjects with manifest atherosclerosis and long-standing diabetes. Therefore, the aim of this study is to investigate the effects of the dipeptidylpeptidase-4 inhibitor linagliptin in subjects with coronary artery disease (CAD) but early type 2 diabetes mellitus (T2DM) on a set of cardiovascular surrogate measurements...
May 17, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29765702/is-radiographic-progression-in-radiographic-axial-spondyloarthritis-related-to-matrix-metalloproteinase-degradation-of-extracellular-matrix
#3
Anne Sofie Siebuhr, Desirée van der Heijde, Anne-C Bay-Jensen, Morten Asser Karsdal, Robert Landewé, Astrid van Tubergen, Sofia Ramiro
Background: Radiographic axial spondyloarthritis (r-axSpA) is associated with extracellular matrix (ECM) remodelling of affected tissues. We investigated whether there was a relationship between biomarkers of ECM remodelling and 2-year radiographic progression in r-axSpA. Methods: Patients from the Outcome in Ankylosing Spondylitis International Study (OASIS) were included if they had serum, clinical and spinal radiographic assessments available at baseline and 2 years later...
2018: RMD Open
https://www.readbyqxmd.com/read/29751523/annexin-a1-and-autoimmunity-from-basic-science-to-clinical-applications
#4
REVIEW
Maurizio Bruschi, Andrea Petretto, Augusto Vaglio, Laura Santucci, Giovanni Candiano, Gian Marco Ghiggeri
Annexin A1 is a protein with multifunctional roles in innate and adaptive immunity mainly devoted to the regulation of inflammatory cells and the resolution of inflammation. Most of the data regarding Annexin A1 roles in immunity derive from cell studies and from mice models lacking Annexin A1 for genetic manipulation (Annexin A1-/- ); only a few studies sought to define how Annexin A1 is involved in human diseases. High levels of anti-Annexin A1 autoantibodies have been reported in systemic lupus erythematosus (SLE), suggesting this protein is implicated in auto-immunity...
May 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29740359/profiling-of-amino-acids-and-their-derivatives-biogenic-amines-before-and-after-antipsychotic-treatment-in-first-episode-psychosis
#5
Liisa Leppik, Kärt Kriisa, Kati Koido, Kadri Koch, Kärolin Kajalaid, Liina Haring, Eero Vasar, Mihkel Zilmer
Schizophrenia (SCH) is a heterogeneous disorder, deriving from a potential multitude of etiopathogenetic factors. During the past few years there has been an increasing interest in the role of circulating amino acids (AAs) and biogenic amines (BAs) in the pathophysiology of SCH. In the present study, we aimed to provide an insight into the potential role of alterations in levels of AAs and BAs as well as examine their more specific metabolic shifts in relation to early stage of SCH. We measured 21 AAs and 17 BAs in serum samples of patients with first-episode psychosis (FEP) before and after 7-month antipsychotic treatment in comparison to control subjects (CSs)...
2018: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29740348/could-sodium-chloride-be-an-environmental-trigger-for-immune-mediated-diseases-an-overview-of-the-experimental-and-clinical-evidence
#6
REVIEW
Eric Toussirot, Matthieu Béreau, Charline Vauchy, Philippe Saas
Immune mediated diseases (IMDs) are complex chronic inflammatory diseases involving genetic and environmental factors. Salt intake has been proposed as a diet factor that can influence the immune response. Indeed, experimental data report the influence of sodium chloride on the differentiation of naive CD4+ T cells into IL-17 secreting T helper (Th) cells (Th17 cells), by a mechanism involving the serum glucocorticoid kinase-1 (SGK1) that promotes the expression of the IL-23 receptor (IL-23R). The IL-23/IL-23R is critical for pathogenic inflammatory Th17 cell differentiation...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29735168/image-analysis-of-fibrosis-in-labial-salivary-glands-of-patients-with-systemic-autoimmune-diseases-close-correlation-of-lobular-fibrosis-to-seropositive-rheumatoid-arthritis-and-increased-anti-ccp-and-rf-titres-in-the-serum
#7
Krisztián Katona, Nelli Farkas, Mária Kneif, Gábor SütŐ, Tímea Berki, Balázs Balatonyi, Tamás Tornóczky
Lobular fibrosis in labial salivary glands of patients with systemic autoimmune disease is a rarely examined and rather neglected histological change. Its significance and disease association is poorly understood. Our aim was to explore the clinical correlations of fibrosis in labial salivary gland samples using objective methods and laboratory parameters. Labial salivary gland samples from more than 300 patients over a 3-year period were selected from the archives of the pathology department, histologically examined, digitised, image analysed and statistically evaluated to identify the presence and intensity of lobular fibrosis, its relation to age, clinical diagnoses of systemic autoimmune disease and the presence of rheumatoid factor (RF), anti-cyclic citrullinated peptide (CCP), antinuclear antibodies (ANAs), and anti-dsDNA serum markers...
May 4, 2018: Pathology
https://www.readbyqxmd.com/read/29713794/comparison-of-the-diagnostic-potential-of-three-anti-citrullinated-protein-antibodies-as-adjuncts-to-rheumatoid-factor-and-ccp-in-a-cohort-of-south-african-rheumatoid-arthritis-patients
#8
Pieter W A Meyer, Mahmood T M Ally, Bridget Hodkinson, Ronald Anderson, Mohammed Tikly
PURPOSE: A retrospective comparison of the prevalence and diagnostic value of anti-Sa, anti-CEP-1, and anti-MCV autoantibodies relative to those of the established autoantibodies, composite RF and anti-CCP-IgG used routinely for RA diagnosis as a component of the ACR 2010 criteria, in a cohort of disease-modifying anti-rheumatic drug naïve African RA patients (n = 75). METHODS: Serum concentrations of anti-Sa, anti-CEP-1 and anti-MCV autoantibodies were measured using ELISA procedures, while anti-CCP-IgG antibodies were determined by fluorescence enzyme immunoassay, and composite RF by latex-enhanced laser nephelometry...
April 30, 2018: Rheumatology International
https://www.readbyqxmd.com/read/29698861/lc-ms-based-urinary-metabolomics-study-of-the-intervention-effect-of-aloe-emodin-on-hyperlipidemia-rats
#9
Hongyu Ji, Yu Liu, Fang He, Ran An, Zhimin Du
Hyperlipidemia has been highlighted to be one of the most prominent and global chronic condition nowadays. Daming capsule (DMC), a traditional Chinese medicine (TCM) preparation, has treated hyperlipidemia on clinic in China for decades. Our recent study showed that aloe-emodin (AE) is one of the main bioactive components in DMC. Therefore, the present study aims to further investigate the lipid-lowering effect by serum biochemistry and histopathological examination, and reveal the underlying mechanisms by urinary metabolomics approach...
April 16, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29668445/pathobiochemical-mechanisms-relating-iron-homeostasis-with-parameters-of-inflammatory-activity-and-autoimmune-disorders-in-rheumatoid-arthritis
#10
Katya I Stefanova, Ginka T Delcheva, Ana I Maneva, Anastas Z Batalov, Mariela G Geneva-Popova, Rositza V Karalilova, Kiril K Simitchiev
AIM: To find the correlations between the parameters of iron homeostasis, inflammatory activity and autoimmune disorders in rheumatoid arthritis (RA). MATERIALS AND METHODS: The present study included 114 patients with RA and 42 healthy controls. We determined the parameters of iron homeostasis: serum iron, total iron binding capacity (TIBC), ferritin and soluble transferrin receptor (sTfR), the parameters of inflammatory activity: C-reactive protein (CRP), interleukin-6 (IL-6) and prohepcidin, and the parameters of autoimmune disorders: rheumatoid factor (RF), anti-cyclic citrullinated peptide (antiCCP) antibodies and DAS 28...
March 1, 2018: Folia Medica
https://www.readbyqxmd.com/read/29663515/determining-optimal-therapy-of-dogs-with-chronic-enteropathy-by-measurement-of-serum-citrulline
#11
Magda Gerou-Ferriani, Rhiannon Allen, Peter-John M Noble, Alexander J German, Marco Caldin, Daniel J Batchelor
BACKGROUND: Serum concentration of citrulline is a useful biomarker in human intestinal disease and indicates globally reduced enterocyte mass and absorptive function in various disease states. OBJECTIVES: To determine whether serum citrulline concentration is a biomarker in chronic enteropathy (CE) in dogs, to provide useful information regarding optimal treatment or to predict outcome. ANIMALS: Seventy-four dogs with CE and 83 breed- and age-matched hospital controls with no clinical signs of intestinal disease...
April 16, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29606664/rheumatoid-arthritis-magnetic-resonance-imaging-score-predicts-therapy-response-results-of-the-german-arthromark-cohort
#12
Philipp Sewerin, Lien Le, Stefan Vordenbäumen, Christoph Schleich, Ruben Sengewein, Ralph Brinks, Georg Pongratz, Ellen Bleck, Juliane Lesch, Ulrich Mansmann, Matthias Schneider, Benedikt Ostendorf
OBJECTIVE: Markers for treatment response in rheumatoid arthritis (RA) are lacking. The aim of the study was to assess the performance of the RA magnetic resonance imaging (MRI) scoring system (RAMRIS) in combination with serum biomarkers to predict response to methotrexate (MTX) treatment in therapy-naive patients with early RA by using high-field MRI. METHODS: Twenty-eight patients with RA were prospectively assessed with baseline 3-T MRI of the clinical dominant hand, 3 and 6 months after MTX...
April 1, 2018: Journal of Rheumatology
https://www.readbyqxmd.com/read/29584756/transcriptional-signature-associated-with-early-rheumatoid-arthritis-and-healthy-individuals-at-high-risk-to-develop-the-disease
#13
N Macías-Segura, J E Castañeda-Delgado, Y Bastian, D Santiago-Algarra, J D Castillo-Ortiz, A L Alemán-Navarro, E Jaime-Sánchez, M Gomez-Moreno, C A Saucedo-Toral, Edgar E Lara-Ramírez, M Zapata-Zuñiga, L Enciso-Moreno, R González-Amaro, C Ramos-Remus, J A Enciso-Moreno
BACKGROUND: Little is known regarding the mechanisms underlying the loss of tolerance in the early and preclinical stages of autoimmune diseases. The aim of this work was to identify the transcriptional profile and signaling pathways associated to non-treated early rheumatoid arthritis (RA) and subjects at high risk. Several biomarker candidates for early RA are proposed. METHODS: Whole blood total RNA was obtained from non-treated early RA patients with <1 year of evolution as well as from healthy first-degree relatives of patients with RA (FDR) classified as ACCP+ and ACCP- according to their antibodies serum levels against cyclic citrullinated peptides...
2018: PloS One
https://www.readbyqxmd.com/read/29582894/sex-differences-in-the-associations-between-l-arginine-pathway-metabolites-skeletal-muscle-mass-and-function-and-their-responses-to-resistance-exercise-in-old-age
#14
M Da Boit, S Tommasi, D Elliot, A Zinellu, S Sotgia, R Sibson, J R Meakin, R M Aspden, C Carru, A A Mangoni, S R Gray
OBJECTIVES: The current study was designed to explore the associations between L-arginine metabolites and muscle mass and function in old age, which are largely unknown. DESIGN: The study used a randomised, double-blind, placebo-controlled design. SETTING: The study was carried out in a laboratory setting. PARTICIPANTS: 50 healthy older adults [median age 70 years (IQR 67-73); 27 males]. INTERVENTION: Participants undertook an 18-week resistance exercise program, and a nutritional intervention (fish oil vs...
2018: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29551532/effect-of-ginger-paullinia-cupana-muira-puama-and-l-citrulline-singly-or-in-combination-on-modulation-of-the-inducible-nitric-oxide-no-cgmp-pathway-in-rat-penile-smooth-muscle-cells
#15
Monica G Ferrini, Eduardo Garcia, Andrea Abraham, Jorge N Artaza, Sabine Nguyen, Jacob Rajfer
INTRODUCTION: COMP-4 is a natural compound-based dietary supplement consisting of the combination of ginger, Paullinia cupana, muira puama and l-citrulline, which when given long-term has been shown in the aged rat to a) upregulate iNOS in the penile smooth muscle cells (SMC), b) reverse the corporal SMC apoptosis and fibrosis associated with corporal veno-occlusive dysfunction (CVOD), and c) improve resulting erectile function. To elucidate the mechanism of how COMP-4 and its individual components modulate the iNOS-cGMP pathway, an in vitro study was conducted using a rat corporal primary SMC culture to determine its effect on NOS, soluble guanylate cyclase (sGC), cGMP and the phosphodiesterase 5 enzyme (PDE5)...
June 1, 2018: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29530998/clinical-significance-of-myeloid-related-protein-8-14-as-a-predictor-for-biological-treatment-and-disease-activity-in-rheumatoid-arthritis
#16
Li Yunchun, Wang Yue, Fang Zhong Jun, Su Qizhu, Ding Liumei
OBJECTIVES: To investigate the serum level of Myeloid-Related Protein 8/14 complex (MRP8/14) and to predict and monitor the response to biologic treatment in rheumatoid arthritis (RA) patients. METHODS: Each patient underwent clinical examination and blood sampling for assessment of serum high-sensitivity C-reactive protein (hs-CRP) levels, erythrocyte sedimentation rate (ESR), rheumatoid factors (RF), anti-cyclic citrullinated protein antibodies (anti-CCP), and serum concentrations of MRP8/14 protein complexes (myeloid-related proteins, MRP8/14) were measured at baseline, and weeks 4 and 12 (after initiation of treatment)...
January 2018: Annals of Clinical and Laboratory Science
https://www.readbyqxmd.com/read/29520957/quantification-of-nets-associated-markers-by-flow-cytometry-and-serum-assays-in-patients-with-thrombosis-and-sepsis
#17
K H Lee, L Cavanaugh, H Leung, F Yan, Z Ahmadi, B H Chong, F Passam
INTRODUCTION: Neutrophil extracellular traps (NETs) are networks of extracellular fibres produced from neutrophil DNA with a pathogenic role in infection, thrombosis and other conditions. Reliable assays for measuring NETs are desirable as novel treatments targeting NETs are being explored for the treatment of these conditions. We compare a whole blood flow cytometry method with serum assays to measure NETs-associated markers in patients with sepsis and thrombosis. METHODS: Patients with deep venous thrombosis (n = 25), sepsis (n = 21) and healthy controls (n = 23) were included in the study...
March 9, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29512371/th1-th17-ratio-as-a-new-insight-in-rheumatoid-arthritis-disease
#18
Hadi Bazzazi, Mehrdad Aghaei, Ali Memarian, Hossein Asgarian-Omran, Nasser Behnampour, Yaghoub Yazdani
The Th17, Th1 and dual Th17/Th1 cells are important players in rheumatoid arthritis (RA) disease. To assess their roles, the frequency and impact of these cells were investigated in patients with different disease activity. In 14 new cases and 41 established RA patients in comparison with 22 healthy controls, the percentages of Th17, Th1 and dual Th17/Th1 cells were determined by flow-cytometry and their correlations were investigated with disease activity score (DAS28). Moreover, serum levels of IL-6 and IL-17 as inducer and functional cytokines for Th17 were investigated...
February 2018: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29505141/high-rates-of-positive-severe-combined-immunodeficiency-screening-among-newborns-with-severe-intestinal-failure
#19
Brenna S Fullerton, Cristine S Velazco, Charles R Hong, Alexandra N Carey, Tom Jaksic
PURPOSE: Severe combined immunodeficiency (SCID) screening by T-cell receptor excision circles (TREC) has been part of Massachusetts routine newborn screening since 2009. Tetratricopeptide repeat domain 7A gene (TTC7A) mutations responsible for hereditary multiple intestinal atresia with combined immunodeficiency (MIA-CID) were also recently identified. We reviewed newborn SCID screening among infants with intestinal failure and correlated results with patient characteristics and outcomes...
January 2018: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29502227/decreased-igg4-acpa-levels-in-responders-and-increased-cd1c-classical-dendritic-cells-in-non-responders-of-patients-with-rheumatoid-arthritis-under-therapy
#20
Robby Engelmann, Sven Nekarda, Daniela Kuthning, Christian Kneitz, Brigitte Müller-Hilke
The treatment options for patients suffering from rheumatoid arthritis expanded over the last years. However, reliable biomarkers to guide therapy decisions are still warranted. Therefore, we here evaluated the value of antibodies against citrullinated peptide antigens (ACPA) IgG subclasses and peripheral blood antigen presenting cells as biomarkers to monitor and predict therapy response of patients with rheumatoid arthritis. Thirty-four ACPA-positive RA patients were enrolled and monitored for 3 months after therapy begin...
March 3, 2018: Clinical Rheumatology
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