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https://www.readbyqxmd.com/read/28811240/changes-in-mucosal-and-serum-immunoglobulin-levels-of-california-sea-lions-during-early-development
#1
W Espinosa-de Aquino, M Bailey, K Acevedo-Whitehouse
To date, most studies on pinniped immunoglobulins have focused on circulating antibodies. However, systemic and local immune activities differ in terms of maturation, intensity, and types of effectors that participate. Here, we examined levels of three immunoglobulin isotypes, IgG, IgM and IgA, in the blood and mucosal membranes of free-living California sea lion pups. We investigated whether age, body condition and sex influenced their concentration. Isotype levels varied among tissues, with age-related patterns that could be indicative of differential regulation along development...
August 12, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28807767/a-new-clinico-biological-scoring-system-for-the-prediction-of-infection-related-mortality-and-survival-after-allogeneic-hematopoietic-stem-cell-transplantation
#2
Alessandra Forcina, Paola M V Rancoita, Magda Marcatti, Raffaella Greco, Maria Teresa Lupo-Stanghellini, Matteo Carrabba, Vincenzo Marasco, Clelia Di Serio, Massimo Bernardi, Jacopo Peccatori, Consuelo Corti, Attilio Bondanza, Fabio Ciceri
Infection-related mortality (IRM) accounts for a substantial component of non-relapse mortality (NRM) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). No scores have been developed to predict IRM before transplant. Pre-transplant clinical and biochemical data were collected in a study cohort of 607 adult patients receiving allo-HSCT from January 2009 to February 2017. In a training set of 273 patients, multivariate analysis revealed that age >60 years (P=0.003), CMV host/donor serostatus different from negative/negative (P<0...
August 11, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28807307/significance-of-anti-carla-salivary-iga-antibody-in-first-grazing-season-cattle-naturally-infected-with-gastrointestinal-nematodes
#3
Aurélie Merlin, Richard Shaw, Alain Chauvin, Nathalie Bareille, Christophe Chartier
A carbohydrate larval surface antigen (CarLA) present on infective larvae of all trichostrongylid nematodes is a target antigen for host immunoglobulins (Ig). Levels of anti-CarLA salivary IgA antibody (CarLA-IgA) have been shown to be correlated to the level of protective immunity to GIN in sheep and deer but no information is available in cattle. The first objective of this study was to assess the pattern of CarLA-IgA response in 7 groups (G1-G7) of first grazing season cattle (FGSC) naturally infected with gastrointestinal nematodes...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28804830/solid-phase-immunoassay-for-the-detection-of-anticardiolipin-antibodies
#4
Rohan Willis, Elizabeth Papalardo, E Nigel Harris
The anticardiolipin (aCL) test was first developed in the 1980s and proved to be a valuable addition to the lupus anticoagulant assay for identifying patients with a disorder that came to be later known as the antiphospholipid syndrome (APS). Although the test has relatively poor specificity for APS diagnosis, particularly at low positive levels, it has continued to play a major role in the identification and management of these patients because of its high sensitivity and ability to be measured in both serum and plasma, and despite concomitant presence of anticoagulants normally given to APS patients...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28804549/treatment-effect-of-low-intensity-pulsed-ultrasound-on-leukopenia-induced-by-cyclophosphamide-in-rabbits
#5
Baoru Liu, Yueping Luo, Dong Luo, Weichen Zhou, Yu Zhang, Ruixin He, Junshu Li, Yong Wang, Yan Wang, Wenzhi Chen
OBJECTIVE: This study aims to examine the effects of low intensity pulsed ultrasound (LIPUS) on leukopenia induced by cyclophosphamide in a rabbit model. METHODS: The leukopenia model in New Zealand rabbit was established by injecting cyclophosphamide into the ear vein. Forty leukopenia model rabbits were randomly allocated to control group (n = 20) and LIPUS group (n = 20). LIPUS group underwent 20 minutes of daily ultrasound treatment at femoral metaphysis for 7 days while control group received sham treatment...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28768852/septic-episodes-in-a-premature-infant-after-in-utero-exposure-to-rituximab
#6
Susanne Hay, Sandra Burchett, Oreofe Odejide, Sule Cataltepe
Rituximab is an increasingly used immunotherapeutic agent for women of reproductive age for treatment of autoimmune diseases, leukemias, and lymphomas. Rituximab is a chimeric monoclonal antibody that targets B-cell surface antigen CD20 and can cross the placenta. Current evidence of the impact of this medication on the developing fetus is limited, but there is little to suggest that fetal exposure to this medication places an infant at increased risk of immunosuppression and subsequent infection. Here we report a case of in utero rituximab exposure that was associated with 2 severe septic episodes with Enterococcus faecalis, in a premature infant of 29 weeks' gestational age with a birth weight of 820 g...
August 2, 2017: Pediatrics
https://www.readbyqxmd.com/read/28763132/hydrolysed-ovalbumin-offers-more-effective-preventive-and-therapeutic-protection-against-egg-allergy-than-the-intact-protein
#7
D Lozano-Ojalvo, L Pérez-Rodríguez, A Pablos-Tanarro, E Molina, R López-Fandiño
BACKGROUND: The application of specific immunotherapy to stimulate oral tolerance towards food allergens is hampered by the high frequency of adverse side effects and the excessive duration of the treatments. OBJECTIVE: In this work, a hydrolysate of ovalbumin with pepsin (OP), selected for its low IgE reactivity and Th2-stimulating capacity, was assayed for its ability to prevent and treat allergy to egg white (EW). METHODS: As a first step, the safety of OP, in terms of the absence of sensitizing and eliciting potential, was evaluated in BALB/c mice...
August 1, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28754665/multiparametric-detection-of-antibodies-against-different-ebv-antigens-to-predict-risk-for-nasopharyngeal-carcinoma-in-a-high-risk-population-of-china
#8
Hao Chen, Shulin Chen, Jie Lu, Xueping Wang, Jianpei Li, Linfang Li, Jihuan Fu, Thomas Scheper, Wolfgang Meyer, Yu-Hui Peng, Wanli Liu
In this study, we aimed to use the combined detection of multiple antibodies against EBV antigens to develop a model for screening and diagnosis of nasopharyngeal carcinoma (NPC). Samples of 300 NPC patients and 494 controls including 294 healthy subjects (HC), 99 non-NPC cancer patients (NNPC) and 101 patients with benign nasopharyngeal lesions (BNL) were incubated with the EUROLINE Anti-EBV Profile 2, and band intensities were used to establish a risk prediction model. The NPC risk probability analysis based on the panel of VCAgp125 IgA, EBNA-1 IgA, EA-D IgA, EBNA-1 IgG, EAD IgG and VCAp19 IgG displayed the best performance...
July 28, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28739053/glucomannan-consumption-elevates-colonic-alkaline-phosphatase-activity-by-up-regulating-the-expression-of-iap-i-which-is-associated-with-increased-production-of-protective-factors-for-gut-epithelial-homeostasis-in-high-fat-diet-fed-rats
#9
Yukako Okazaki, Tetsuyuki Katayama
We previously reported that consumption of glucomannan-containing food (lily bulb) modulates gut microbiota and increases gut immunoglobulin A (IgA, index of intestinal immune function), mucins (index of intestinal barrier function), and colonic alkaline phosphatase (ALP) activity in rats fed a high-fat (HF) diet. Small intestinal ALP has an established protective effect in inflammatory diseases, whereas little is known about the function of colonic ALP activity. We hypothesized that dietary glucomannan would increase colonic ALP activity and the gene expression in rats fed an HF diet...
July 2017: Nutrition Research
https://www.readbyqxmd.com/read/28735808/autoimmunity-and-its-association-with-regulatory-t-cells-and-b-cell-subsets-in-patients-with-common-variable-immunodeficiency
#10
G Azizi, H Abolhassani, F Kiaee, N Tavakolinia, H Rafiemanesh, R Yazdani, S A Mahdaviani, S Mohammadikhajehdehi, M Tavakol, V Ziaee, B Negahdari, J Mohammadi, A Mirshafiey, A Aghamohammadi
BACKGROUND: Common variable immunodeficiency (CVID) is one of the most prevalent symptomatic primary immunodeficiencies (PIDs), which manifests a wide clinical variability such as autoimmunity, as well as T cell and B cell abnormalities. METHODS: A total of 72 patients with CVID were enrolled in this study. Patients were evaluated for clinical manifestations and classified according to the presence or absence of autoimmune disease. We measured regulatory T cells (Tregs) and B-cell subsets using flow cytometry, as well as specific antibody response (SAR) to pneumococcal vaccine, autoantibodies and anti-IgA in patients...
July 20, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28734952/potential-predictive-role-of-lipid-peroxidation-markers-for-type-2-diabetes-in-the-tunisian-population
#11
Houda Bouhajja, Faten Hadj Kacem, Rania Abdelhedi, Marwa Ncir, Jordan D Dimitrov, Rim Marrakchi, Kamel Jamoussi, Ahmed Rebai, Abdelfattah El Feki, Mohamed Abid, Hammadi Ayadi, Srini V Kaveri, Mouna Mnif-Feki, Noura Bougacha-Elleuch
OBJECTIVES: We evaluated the potential clinical relevance of malondialdehyde (MDA) and autoantibodies to copper oxidized low-density lipoprotein (CuOx-LDL) in type 2 diabetes occurrence. METHODS: This cross-sectional study enrolled 69 normoglycemic subjects, 18 prediabetic patients and 108 type 2 diabetes patients. MDA concentration was assessed spectrophotometrically. Plasma IgG, IgA and IgM levels to CuOx-LDL were determined by ELISA. RESULTS: Plasma MDA levels were considerably higher in obese, prediabetic and type 2 diabetes subjects compared to controls...
July 19, 2017: Canadian Journal of Diabetes
https://www.readbyqxmd.com/read/28730517/selective-igm-deficiency-clinical-and-laboratory-features-of-17-patients-and-a-review-of-the-literature
#12
Zita Chovancova, Pavlina Kralickova, Alena Pejchalova, Marketa Bloomfield, Jana Nechvatalova, Marcela Vlkova, Jiri Litzman
PURPOSE: Primary selective IgM deficiency (sIgMD) is a primary immunodeficiency with unclear pathogenesis and a low number of published cases. METHODS: We reviewed clinical and laboratory manifestations of 17 sIgMD patients. Serum IgM, IgG, and its subclasses, IgA, IgE, antibodies against tetanus toxoid, pneumococcal polysaccharides and Haemophilus influenzae type b, isohemagglutinins, and T and B lymphocyte subsets, expressions of IgM on B cells and B lymphocyte production of IgM were compared with previously reported case reports and a small series of patients, which included 81 subjects in total...
July 21, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28724421/efficacy-and-safety-of-mycophenolate-mofetil-in-patients-with-iga-nephropathy-an-update-meta-analysis
#13
Bing Du, Ye Jia, Wenhua Zhou, Xu Min, Lining Miao, Wenpeng Cui
BACKGROUND: The application of mycophenolate mofetil (MMF) in treating patients with immunoglobulin A nephropathy (IgAN) remains uncertain. This update meta-analysis was performed to re-evaluate the therapeutic potential of MMF in IgAN. METHODS: Articles were obtained by searching the electronic databases without language restriction. Randomized controlled trials studying the role of MMF in treating IgAN were collected. The quality of included studies was critically evaluated...
July 19, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28723905/evolution-of-anti-trypanosoma-cruzi-antibody-production-in-patients-with-chronic-chagas-disease-correlation-between-antibody-titers-and-development-of-cardiac-disease-severity
#14
Ingebourg Georg, Alejandro Marcel Hasslocher-Moreno, Sergio Salles Xavier, Marcelo Teixeira de Holanda, Eric Henrique Roma, Maria da Gloria Bonecini-Almeida
Chagas disease is one of the most important endemic infections in Latin America affecting around 6-7 million people. About 30-50% of patients develop the cardiac form of the disease, which can lead to severe cardiac dysfunction and death. In this scenario, the identification of immunological markers of disease progression would be a valuable tool for early treatment and reduction of death rates. In this observational study, the production of anti-Trypanosoma cruzi antibodies through a retrospective longitudinal follow-up in chronic Chagas disease patients´ cohort and its correlation with disease progression and heart commitment was evaluated...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28690727/-clinical-and-immunological-profile-of-15-moroccan-patients-with-hyper-igm-syndrome
#15
Hind Ouair, Ibtihal Benhsaien, Leila Jeddane, Jalila El Bakkouri, Naima Elhafidi, Noureddine Rada, Jilali Najib, Fatima Ailal, Hanane Salih Alj, Ahmed Aziz Bousfiha
Hyper IgM syndrome is a well known genetic (primary) immunodeficiency disorder which was first described in 1961. It is caused by B lymphocyte deficiency characterized by normal or elevated serum IgM levels and low or zero levels of IgG, IgA, IgE resulting from isotype-switching deficiency. Clinical manifestations are dominated by recurrent infections, especially involving the digestive tube of the ENT sphere and the lungs. This syndrome is caused by B-cell immunoglobulin class switch deficiency and decreased capacity to induce proliferation of T lymphocytes...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28682152/natural-igm-antibodies-in-the-immune-defence-against-neoehrlichiosis
#16
Christine Wennerås, David Goldblatt, Marta Zancolli, Mattias Mattsson, Linda Wass, Sohvi Hörkkö, Anders Rosén
BACKGROUND: Neoehrlichiosis is an infectious disease caused by the tick-borne bacterium "Candidatus Neoehrlichia mikurensis". Splenectomy and rituximab therapies are risk factors for severe neoehrlichiosis. Our aim was to examine if neoehrlichiosis patients had low levels of natural IgM antibodies and/or were hypogammaglobulinemic, and if such deficiencies were associated with asplenia and vascular complications. METHODS: Neoehrlichiosis patients (n = 9) and control subjects (n = 10) were investigated for serum levels of IgG, IgA, and IgM, and for levels of natural IgM antibodies to pneumococcal polysaccharides (6B, 14), and to the malondialdehyde acetaldehyde epitope of oxidized LDL...
July 6, 2017: Infectious Diseases
https://www.readbyqxmd.com/read/28678871/the-effect-of-infectious-dose-on-humoral-and-cellular-immune-responses-in-chlamydophila-caviae-primary-ocular-infection
#17
Ana Filipovic, Ehsan Ghasemian, Aleksandra Inic-Kanada, Ivana Lukic, Elisabeth Stein, Emilija Marinkovic, Radmila Djokic, Dejana Kosanovic, Nadine Schuerer, Hadeel Chalabi, Sandra Belij-Rammerstorfer, Marijana Stojanovic, Talin Barisani-Asenbauer
Following infection, the balance between protective immunity and immunopathology often depends on the initial infectious load. Several studies have investigated the effect of infectious dose; however, the mechanism by which infectious dose affects disease outcomes and the development of a protective immune response is not known. The aim of this study was to investigate how the infectious dose modulates the local and systemic humoral and the cellular immune responses during primary ocular chlamydial infection in the guinea pig animal model...
2017: PloS One
https://www.readbyqxmd.com/read/28675262/intravenous-immunoglobulins-for-epilepsy
#18
REVIEW
JinSong Geng, JianCheng Dong, Youping Li, Hengjian Ni, Kui Jiang, Li Li Shi, GuoHua Wang
BACKGROUND: Epilepsy is a common neurological condition, with an estimated incidence of 50 per 100,000 persons. People with epilepsy may present with various types of immunological abnormalities, such as low serum immunoglobulin A (IgA) levels, lack of the immunoglobulin G (IgG) subclass and identification of certain types of antibodies. Intravenous immunoglobulin (IVIg) treatment may represent a valuable approach and its efficacy has important implications for epilepsy management. This is an updated version of the original Cochrane review published in Issue 1, 2011...
July 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28669382/new-wide-dynamic-range-assays-for-quantification-of-anti-leishmania-igg2-and-iga-antibodies-in-canine-serum
#19
Ana Cantos-Barreda, Damián Escribano, Luis J Bernal, Luis Pardo-Marín, José J Cerón, Silvia Martínez-Subiela
The aims of this study were (1) to develop and validate time resolved-immunofluorometric assays for the detection of anti-Leishmania IgG2 and IgA antibodies in canine serum and (2) to evaluate the ability of these assays to quantify different amounts of anti-Leishmania antibodies in Leishmania-seronegative and seropositive dogs, determined by a commercial ELISA assay, and between different clinical stages according to LeishVet guidelines. The analytical validation showed that the assays had a good precision with intra- and inter-assay coefficients of variation lower than 10%...
July 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28668575/meningococcal-serogroup-c-immunogenicity-antibody-persistence-and-memory-b-cells-induced-by-the-monovalent-meningococcal-serogroup-c-versus-quadrivalent-meningococcal-serogroup-acwy-conjugate-booster-vaccine-a-randomized-controlled-trial
#20
Mariëtte B van Ravenhorst, Fiona R M van der Klis, Debbie M van Rooijen, Mirjam J Knol, Susanne P Stoof, Elisabeth A M Sanders, Guy A M Berbers
BACKGROUND: Adolescents are considered the key transmitters of meningococci in the population. Meningococcal serogroup C (MenC) antibody levels wane rapidly after MenC conjugate vaccination in young children, leaving adolescents with low antibody levels. In this study, we compared MenC immune responses after booster vaccination in adolescence with either tetanus toxoid conjugated MenC (MenC-TT) or MenACWY (MenACWY-TT) vaccine, and aimed to establish an optimal age for this booster. METHODS: Healthy 10-, 12-, and 15-year-olds, who received a single dose of MenC-TT vaccine in early childhood, were randomized to receive MenC-TT or MenACWY-TT vaccine...
June 28, 2017: Vaccine
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