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https://www.readbyqxmd.com/read/28094589/leucine-rich-%C3%AE-2-glycoprotein-as-the-acute-phase-reactant-to-detect-systemic-juvenile-idiopathic-arthritis-disease-activity-during-anti-interleukin-6-blockade-therapy-a-case-series
#1
Masaki Shimizu, Yasuo Nakagishi, Natsumi Inoue, Mao Mizuta, Akihiro Yachie
OBJECTIVES: To assess the role of leucine-rich α2-glycoprotein (LRG) as a biomarker for monitoring systemic juvenile idiopathic arthritis (s-JIA) disease activity during interleukin (IL)-6 blockade treatment. METHODS: We serially measured serum LRG levels in four s-JIA patients treated with the anti-IL-6 receptor antibody tocilizumab and determined the correlation between clinical symptoms and other inflammatory biomarkers and proinflammatory cytokines, including IL-18, IL-6, neopterin, and tumor necrosis factor-α receptor type I and II...
January 17, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28024933/a-preoperative-multimarker-approach-to-evaluate-acute-kidney-injury-after-cardiac-surgery
#2
Tone B Enger, Hilde Pleym, Roar Stenseth, Guri Greiff, Alexander Wahba, Vibeke Videm
OBJECTIVE: To investigate whether a multimarker strategy combining preoperative biomarkers representing distinct pathophysiologic pathways enhances preoperative risk assessment of acute kidney injury after cardiac surgery (CSA-AKI) and increases knowledge of underlying pathogenesis. DESIGN: Prospective, cohort study. SETTING: Single-center tertiary referral hospital. PARTICIPANTS: The study comprised 1,015 adults undergoing cardiac surgery with cardiopulmonary bypass...
October 11, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28005163/intratumoral-th2-predisposition-combines-with-an-increased-th1-functional-phenotype-in-clinical-response-to-intravesical-bcg-in-bladder-cancer
#3
Renate Pichler, Georg Gruenbacher, Zoran Culig, Andrea Brunner, Dietmar Fuchs, Josef Fritz, Hubert Gander, Andrea Rahm, Martin Thurnher
Th1-type immunity is considered to be required for efficient response to BCG in bladder cancer, although Th2 predisposition of BCG responders has recently been reported. The aim was to evaluate the relationship of Th1 and Th2 components in 23 patients undergoing BCG treatment. Peripheral blood, serum and urine samples were prospectively collected at baseline, during and after BCG. Th1 (neopterin, tryptophan, kynurenine, kynurenine-to-tryptophan ratio (KTR), IL-12, IFN-γ, soluble TNF-R75 and IL-2Rα) and Th2 (IL-4, IL-10) biomarkers as well as CD4 expression in T helper (Th), effector and regulatory T cells were determined...
December 22, 2016: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/27994110/dynamics-and-trends-in-fecal-biomarkers-of-gut-function-in-children-from-1-24-months-in-the-mal-ed-study
#4
Benjamin J J McCormick, Gwenyth O Lee, Jessica C Seidman, Rashidul Haque, Dinesh Mondal, Josiane Quetz, Aldo A M Lima, Sudhir Babji, Gagandeep Kang, Sanjaya K Shrestha, Carl J Mason, Shahida Qureshi, Zulfiqar A Bhutta, Maribel Paredes Olortegui, Pablo Peñataro Yori, Amidou Samie, Pascal Bessong, Caroline Amour, Estomih Mduma, Crystal L Patil, Richard L Guerrantl, Dennis R Lang, Michael Gottlieb, Laura E Caulfield, Margaret N Kosek
Growth and development shortfalls that are disproportionately prevalent in children living in poor environmental conditions are postulated to result, at least in part, from abnormal gut function. Using data from The Etiology, Risk Factors, and Interactions of Enteric Infections and Malnutrition and the Consequences for Child Health and Development (MAL-ED) longitudinal cohort study, we examine biomarkers of gut inflammation and permeability in relation to environmental exposures and feeding practices. Trends in the concentrations of three biomarkers, myeloperoxidase (MPO), neopterin (NEO), and α-1-antitrypsin (AAT), are described from an unparalleled number of fecal samples collected during the first 2 years of each child's life...
December 19, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27977553/the-association-between-fecal-biomarkers-of-environmental-enteropathy-and-rotavirus-vaccine-response-in-nicaraguan-infants
#5
Sylvia Becker-Dreps, Samuel Vilchez, Filemon Bucardo, Erica Twitchell, Wan Suk Choi, Michael G Hudgens, Johan Perez, Lijuan Yuan
BACKGROUND: Environmental enteropathy (EE) is a common intestinal condition among children living in low and middle income countries and is associated with diminished enteric immunity to gastrointestinal pathogens, and possibly, to oral vaccine antigens. The goal of this study was to examine associations between biomarkers of EE and immunogenicity to the pentavalent rotavirus vaccine (RV5). METHODS: Infants were recruited one day before their first RV5 immunization in León, Nicaragua, from public health rosters...
December 12, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/27941966/metabolomics-identifies-multiple-candidate-biomarkers-to-diagnose-and-stage-human-african-trypanosomiasis
#6
Isabel M Vincent, Rónán Daly, Bertrand Courtioux, Amy M Cattanach, Sylvain Biéler, Joseph M Ndung'u, Sylvie Bisser, Michael P Barrett
Treatment for human African trypanosomiasis is dependent on the species of trypanosome causing the disease and the stage of the disease (stage 1 defined by parasites being present in blood and lymphatics whilst for stage 2, parasites are found beyond the blood-brain barrier in the cerebrospinal fluid (CSF)). Currently, staging relies upon detecting the very low number of parasites or elevated white blood cell numbers in CSF. Improved staging is desirable, as is the elimination of the need for lumbar puncture...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27923408/pharmacokinetic-and-pharmacodynamic-characterization-of-a-novel-formulation-containing-co-formulated-interferons-alpha-2b-and-gamma-in-healthy-male-volunteers
#7
Idrian García-García, Ignacio Hernández-González, Alina Díaz-Machado, Carlos A González-Delgado, Sonia Pérez-Rodríguez, Yanelda García-Vega, Rosario Campos-Mojena, Ángela D Tuero-Iglesias, Carmen M Valenzuela-Silva, Alieski Cruz-Ramírez, Alis Martín-Trujillo, Héctor Santana-Milián, Pedro A López-Saura, Iraldo Bello-Rivero
BACKGROUND: More potent antitumor activity is desired in Interferon (IFN)-treated cancer patients. This could be achieved by combining IFN alpha and IFN gamma. The aim of this work was to characterize the pharmacokinetics and pharmacodynamics of a novel formulation containing a co-formulated combination of IFNs alpha-2b and gamma (CIGB-128-A). METHODS: A group of nine healthy male subjects received intramuscularly 24.5 × 10(6) IU of CIGB-128-A. IFN concentrations were evaluated for 48 h...
December 7, 2016: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/27921220/increased-cell-free-mitochondrial-dna-is-a-marker-of-ongoing-inflammation-and-better-neurocognitive-function-in-virologically-suppressed-hiv-infected-individuals
#8
Josué Pérez-Santiago, Michelli F De Oliveira, Susanna R Var, Tyler R C Day, Steven P Woods, Sara Gianella, Sanjay R Mehta
Cell-free mitochondrial DNA (mtDNA) is a highly immunogenic molecule that is associated with several inflammatory conditions and with neurocognitive impairment during untreated HIV infection. Here, we investigate how cell-free mtDNA in cerebrospinal fluid (CSF) is associated with inflammation, neuronal damage, and neurocognitive functioning in the context of long-term suppressive antiretroviral therapy (ART). We quantified the levels of cell-free mtDNA in the CSF from 41 HIV-infected individuals with completely suppressed HIV RNA levels in blood plasma (<50 copies/mL) by droplet digital PCR...
December 5, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27916904/impact-of-pre-pregnancy-bmi-on-b-vitamin-and-inflammatory-status-in-early-pregnancy-an-observational-cohort-study
#9
Anne-Lise Bjørke-Monsen, Arve Ulvik, Roy M Nilsen, Øivind Midttun, Christine Roth, Per Magnus, Camilla Stoltenberg, Stein Emil Vollset, Ted Reichborn-Kjennerud, Per Magne Ueland
Maternal nutrition and inflammation have been suggested as mediators in the development of various adverse pregnancy outcomes associated with maternal obesity. We have investigated the relation between pre-pregnancy BMI, B vitamin status, and inflammatory markers in a group of healthy pregnant women. Cobalamin, folate, pyridoxal 5'-phosphate, and riboflavin; and the metabolic markers homocysteine, methylmalonic acid, and 3-hydroxykynurenine/xanthurenic acid ratio (HK/XA); and markers of cellular inflammation, neopterin and kynurenine/tryptophan ratio (KTR) were determined in pregnancy week 18 and related to pre-pregnancy body mass index (BMI), in 2797 women from the Norwegian Mother and Child Cohort Study (MoBa)...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27894401/association-between-the-cytotoxic-t-lymphocyte-antigen-4-mutations-and-the-susceptibility-to-systemic-lupus-erythematosus-contribution-markers-of-inflammation-and-oxidative-stress
#10
M Tanhapour, A Vaisi-Raygani, F Bahrehmand, M Khazaei, A Kiani, Z Rahimi, H Nomani, H Tavilani, T Pourmotabbed
: The cytotoxic T lymphocyte antigen-4 (CTLA-4) also known as CD152 (cluster of differentiation 152) is a crucial negative regulator of the immune system. This protein receptor provides negative signals in order to suppress T-cell activation and immune attack against self-antigens, although its role is unclear.  The ability of CTLA-4 to limit T cell-mediated immune response has made it a major target in treatment of tumors and autoimmune diseases such as systemic lupus erythematosus (SLE)...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27886064/probiotic-supplements-beneficially-affect-tryptophan-kynurenine-metabolism-and-reduce-the-incidence-of-upper-respiratory-tract-infections-in-trained-athletes-a-randomized-double-blinded-placebo-controlled-trial
#11
Barbara Strasser, Daniela Geiger, Markus Schauer, Johanna M Gostner, Hannes Gatterer, Martin Burtscher, Dietmar Fuchs
BACKGROUND: Prolonged intense exercise has been associated with transient suppression of immune function and an increased risk of infections. In this context, the catabolism of amino acid tryptophan via kynurenine may play an important role. The present study examined the effect of a probiotic supplement on the incidence of upper respiratory tract infections (URTI) and the metabolism of aromatic amino acids after exhaustive aerobic exercise in trained athletes during three months of winter training...
November 23, 2016: Nutrients
https://www.readbyqxmd.com/read/27882497/soluble-tlr2-and-4-concentrations-in-cerebrospinal-fluid-in-hiv-siv-related-neuropathological-conditions
#12
Khutso M Mothapo, J Ten Oever, P Koopmans, F F Stelma, S Burm, J Bajramovic, M M Verbeek, M G Olde Rikkert, M G Netea, G Koopman, A J van der Ven
HIV in the central nervous system (CNS) mainly infects microglial cells which are known to express toll-like receptors (TLRs). This paper aimed to study the role of soluble TLR2 (sTLR2), sTLR4, and other inflammatory markers in cerebrospinal fluid (CSF) in HIV/Simian immunodeficiency virus (SIV)-related neurological sequelae. We determined sTLR2 and sTLR4 levels in CSF and serum/plasma of SIV-infected rhesus macaques with and without neurological sequelae, as well as in HIV-infected patients with and without cognitive impairments and Alzheimer's disease (AD) patients and matched controls...
November 23, 2016: Journal of Neurovirology
https://www.readbyqxmd.com/read/27879161/neopterin-and-oxidative-stress-markers-in-the-diagnosis-of-extrapulmonary-tuberculosis
#13
Nisha Goyal, Bineeta Kashyap, N P Singh, Iqbal R Kaur
BACKGROUND: Extrapulmonary tuberculosis (EPTB) often presents with nonspecific signs and symptoms. Further the paucibacillary nature of extrapulmonary specimens and irregular distribution of bacilli lower the sensitivity of conventional diagnostic methods making EPTB, a diagnostic dilemma. OBJECTIVE: To study neopterin, protein carbonyl and malondialdehyde (MDA) in EPTB. METHODS: Sixty nine clinically confirmed cases with an equal number of age and sex matched healthy controls were enrolled...
December 8, 2016: Biomarkers: Biochemical Indicators of Exposure, Response, and Susceptibility to Chemicals
https://www.readbyqxmd.com/read/27876593/intact-interferon-%C3%AE-response-against-coxiella-burnetii-by-peripheral-blood-mononuclear-cells-in-chronic-q-fever
#14
T Schoffelen, J Textoris, C P Bleeker-Rovers, A Ben Amara, J W M van der Meer, M G Netea, J-L Mege, M van Deuren, E van de Vosse
OBJECTIVES: Q fever is caused by Coxiella burnetii, an intracellular bacterium that infects phagocytes. The aim of the present study was to investigate whether the C. burnetii-induced IFN-γ response is defective in chronic Q fever patients. METHODS: IFN-γ was measured in supernatants of C. burnetii-stimulated peripheral blood mononuclear cells (PBMCs) of 17 chronic Q fever patients and 17 healthy individuals. To assess IFN-γ responses, expression profiles of IFN-γ-induced genes in C...
November 20, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27868081/blood-brain-barrier-integrity-intrathecal-immunoactivation-and-neuronal-injury-in-hiv
#15
Birgitta Anesten, Aylin Yilmaz, Lars Hagberg, Henrik Zetterberg, Staffan Nilsson, Bruce J Brew, Dietmar Fuchs, Richard W Price, Magnus Gisslén
OBJECTIVE: Although blood-brain barrier (BBB) impairment has been reported in HIV-infected individuals, characterization of this impairment has not been clearly defined. METHODS: BBB integrity was measured by CSF/plasma albumin ratio in this cross-sectional study of 631 HIV-infected individuals and 71 controls. We also analyzed CSF and blood HIV RNA and neopterin, CSF leukocyte count, and neurofilament light chain protein (NFL) concentrations. The HIV-infected participants included untreated neuroasymptomatic patients, patients with untreated HIV-associated dementia (HAD), and participants on suppressive antiretroviral treatment (ART)...
December 2016: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/27861525/elevated-neopterin-levels-are-associated-with-increased-tuberculosis-risk-in-rheumatoid-arthritis-patients-with-quantiferon-conversion-during-biologic-therapy
#16
Der-Yuan Chen, Ju-Pi Li, Yi-Ming Chen, Tsai-Ling Liao, Hsin-Hua Chen, Chia-Wei Hsieh, Yea-Wen Yeh, Joung-Liang Lan
QuantiFERON-TB-Gold (QFT-G) conversion is frequently observed in rheumatoid arthritis (RA) patients receiving biologic therapy. However, there have not been any known biomarkers available for detecting tuberculosis (TB) in QFT-G converters. We aimed to evaluate clinical utility of cytokines/chemokines for detecting TB in patients with QFT-G conversion. Among a total of 227 RA patients who underwent QFT-G assay, 187 QFT-G-negative patients received biologic therapy without isoniazid prophylaxis. QFT-G assay was repeated at week 52 of biologic therapy or at the time of TB diagnosis...
2016: PloS One
https://www.readbyqxmd.com/read/27851899/cognitive-ability-in-down-syndrome-and-its-relationship-to-urinary-neopterin-a-marker-of-activated-cellular-immunity
#17
Panagiotis Zis, André Strydom, David Buckley, Daniel Adekitan, Patrick C McHugh
BACKGROUND: Neopterin is an unconjugated pteridine that is secreted in large quantities by activated macrophages and can be used as a clinical marker of activated cellular immunity and oxidative stress. We aimed to investigate whether urinary neopterin levels are associated with cognitive function in people with Down syndrome (DS). METHODS: Out of 32 adults with DS who originally participated in a longitudinal study, 25 were followed up at 4 years. Informants rated their adaptive behavior (ABAS) and the adults with DS attempted assessments of language skills and memory at both baseline and follow-up time points (Modified Memory Object Task, MOMT), and receptive vocabulary (British Picture Vocabulary Scale, BPVS)...
January 1, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/27845163/the-effect-of-htlv-1-virulence-factors-hbz-tax-proviral-load-hla-class-i-and-plasma-neopterin-on-manifestation-of-htlv-1-associated-myelopathy-tropical-spastic-paraparesis
#18
Hanieh Tarokhian, Mahdi Taghadosi, Hushang Rafatpanah, Taraneh Rajaei, Mahmoud Reza Azarpazhooh, Narges Valizadeh, S A Rahim Rezaee
BACKGROUND: Previous studies have suggested debatable roles of Tax and HBZ gene expression in the pathogenesis of HTLV-1-associated myelopathy/tropical spastic paraparesis (HAM/TSP). In this study, HTLV-1 and host interactions in the manifestation of HAM/TSP were evaluated. METHODS: A cross-sectional study was conducted on 33 HAM/TSP patients and 38 HTLV-1 asymptomatic carriers (ACs). HTLV-1-Tax, HBZ gene expression, and proviral load (PVL) were assessed using the quantitative real-time PCR (TaqMan), host plasma neopterin level, and HLA-I, and the clinical manifestation were evaluated...
January 15, 2017: Virus Research
https://www.readbyqxmd.com/read/27832762/tryptophan-metabolism-its-relation-to-inflammation-and-stress-markers-and-association-with-psychological-and-cognitive-functioning-tasmanian-chronic-kidney-disease-pilot-study
#19
Naama Karu, Charlotte McKercher, David S Nichols, Noel Davies, Robert A Shellie, Emily F Hilder, Matthew D Jose
BACKGROUND: Adults with chronic kidney disease (CKD) exhibit alterations in tryptophan metabolism, mainly via the kynurenine pathway, due to higher enzymatic activity induced mainly by inflammation. Indoles produced by gut-microflora are another group of tryptophan metabolites related to inflammation and conditions accompanying CKD. Disruptions in tryptophan metabolism have been associated with various neurological and psychological disorders. A high proportion of CKD patients self-report symptoms of depression and/or anxiety and decline in cognitive functioning...
November 10, 2016: BMC Nephrology
https://www.readbyqxmd.com/read/27826896/blood-brain-barrier-impairment-in-hiv-positive-na%C3%A3-ve-and-effectively-treated-patients-immune-activation-versus-astrocytosis
#20
A Calcagno, A Romito, C Atzori, V Ghisetti, C Cardellino, S Audagnotto, E Scarvaglieri, F Lipani, D Imperiale, G Di Perri, S Bonora
Blood brain barrier (BBB) damage is a common feature in central nervous system infections by HIV and it may persist despite effective antiretroviral therapy. Astrocyte involvement has not been studied in this setting. Patients were enrolled in an ongoing prospective study and subjects with central nervous system-affecting disorders were excluded. Patients were divided into two groups: treated subjects with cerebrospinal fluid (CSF) HIV RNA <50 copies/mL (CSF-controllers) and in late-presenters CD4+ T lymphocytes <100/uL...
November 8, 2016: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
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