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blood group system antibodies

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https://www.readbyqxmd.com/read/28089577/neutralizing-anti-interleukin-1%C3%AE-antibodies-reduce-ischemia-related-interleukin-1%C3%AE-transport-across-the-blood-brain-barrier-in-fetal-sheep
#1
Aparna Patra, Xiaodi Chen, Grazyna B Sadowska, Jiyong Zhang, Yow-Pin Lim, James F Padbury, William A Banks, Barbara S Stonestreet
Hypoxic ischemic insults predispose to perinatal brain injury. Pro-inflammatory cytokines are important in the evolution of this injury. Interleukin-1β (IL-1β) is a key mediator of inflammatory responses and elevated IL-1β levels in brain correlate with adverse neurodevelopmental outcomes after brain injury. Impaired blood-brain barrier (BBB) function represents an important component of hypoxic-ischemic brain injury in the fetus. In addition, ischemia-reperfusion increases cytokine transport across the BBB of the ovine fetus...
January 9, 2017: Neuroscience
https://www.readbyqxmd.com/read/28077935/development-of-a-microarray-based-method-for-allergen-specific-ige-and-igg4-detection
#2
Guzel Feyzkhanova, Sergei Voloshin, Olga Smoldovskaya, Alla Arefieva, Marina Filippova, Viktor Barsky, Ludmila Pavlushkina, Veronika Butvilovskaya, Alexei Tikhonov, Yuri Reznikov, Alla Rubina
BACKGROUND: sIgE and sIgG4 detection is necessary for more accurate and effective type I hypersensitivity diagnostics and the estimation of disease development. Typically, the analyses of these antibodies are performed separately with the help of various specialized systems. The aim of this study was to develop a microarray-based method for the simultaneous quantitative detection of sIgE and sIgG4 to the most common allergens in a single sample. METHODS: A quantitative method for the simultaneous detection of sIgE and sIgG4 was developed based on the technology of hydrogel microchips previously designed at Engelhardt Institute of Molecular Biology, Russian Academy of Sciences (EIMB RAS)...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28073775/dasatinib-changes-immune-cell-profiles-concomitant-with-reduced-tumor-growth-in-several-murine-solid-tumor-models
#3
Can Hekim, Mette Ilander, Jun Yan, Erin Michaud, Richard Smykla, Markus Vähä-Koskela, Paula Savola, Siri Tähtinen, Leena Saikko, Akseli Hemminki, Panu E Kovanen, Kimmo Porkka, Francis Yf Lee, Satu Mustjoki
Dasatinib, a broad range tyrosine kinase inhibitor (TKI), induces rapid mobilization of lymphocytes and clonal expansion of cytotoxic cells in leukemia patients. Here, we investigated whether dasatinib could induce beneficial immunomodulatory effects in solid tumor models. The effects on tumor growth and on the immune system were studied in four different syngeneic mouse models (B16.OVA melanoma, 1956 sarcoma, MC38 colon, and 4T1 breast carcinoma). Both peripheral blood (PB) and tumor samples were immunophenotyped during treatment...
January 10, 2017: Cancer Immunology Research
https://www.readbyqxmd.com/read/28070204/evaluation-of-lactobacillus-coryniformis-cect5711-strain-as-a-coadjuvant-in-a-vaccination-process-a-randomised-clinical-trial-in-healthy-adults
#4
Noemí Redondo, Esther Nova, Alina Gheorghe, Ligia Esperanza Díaz, Aurora Hernández, Ascensión Marcos
BACKGROUND: Although the effects of probiotics on the immune system have been extensively evaluated under disease states, their role in healthy situations remains unclear, since changes are hardly expected under immunological homeostasis. EFSA indicates that vaccination protocols could be used to evaluate the potential role of probiotics to improve the immune response against antigen challenges. The aim of the study was to evaluate the effect of Lactobacillus coryniformis CECT5711 (Lc) on the specific immunity of healthy volunteers undergoing vaccination with Hepatitis A virus (HAV)...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28065763/the-kidd-jk-blood-group-system
#5
REVIEW
Shaun Lawicki, Randal B Covin, Amy A Powers
The Kidd blood group system was discovered in 1951 and is composed of 2 antithetical antigens, Jk(a) and Jk(b), along with a third high-incidence antigen, Jk3. The Jk3 antigen is expressed in all individuals except those with the rare Kidd-null phenotype. Four Kidd phenotypes are therefore possible: Jk(a+b-), Jk(a-b+), Jk(a+b+), and Jk(a-b-). The glycoprotein carrying the Kidd antigens is a 43-kDa, 389-amino acid protein with 10 membrane-spanning domains which functions as a urea transporter on endothelial cells of the renal vasa recta as well as erythrocytes...
November 9, 2016: Transfusion Medicine Reviews
https://www.readbyqxmd.com/read/28058672/neuroprotective-effects-of-intravenous-immunoglobulin-are-mediated-through-inhibition-of-complement-activation-and-apoptosis-in-a-rat-model-of-sepsis
#6
Figen Esen, Gunseli Orhun, Perihan Ergin Ozcan, Evren Senturk, Melike Kucukerden, Murat Giris, Ugur Akcan, Canan Ugur Yilmaz, Nurcan Orhan, Nadir Arican, Mehmet Kaya, Sema Bilgic Gazioglu, Erdem Tuzun
BACKGROUND: Intravenous (IV) immunoglobulin (Ig) treatment is known to alleviate behavioral deficits and increase survival in the experimentally induced model of sepsis. To delineate the mechanisms by which IVIg treatment prevents neuronal dysfunction, an array of immunological and apoptosis markers was investigated. METHODS: Sepsis was induced by cecal ligation perforation (CLP) in rats. The animals were divided into five groups: sham, control, CLP + saline, CLP + immunoglobulin G (IgG) (250 mg/kg, iv), and CLP + immunoglobulins enriched with immunoglobulin M (IgGAM) (250 mg/kg, iv)...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28056867/risk-factors-and-characteristics-of-blood-stream-infections-in-patients-with-newly-diagnosed-multiple-myeloma
#7
Chun-Teng Huang, Chia-Jen Liu, Po-Shen Ko, Han-Tsung Liu, Yuan-Bin Yu, Liang-Tsai Hsiao, Jyh-Pyng Gau, Cheng-Hwai Tzeng, Tzeon-Jye Chiou, Jin-Hwang Liu, Muh-Hwa Yang, Ling-Ju Huang, Chun-Yu Liu
BACKGROUND: Patients with multiple myeloma are generally immune-compromised either due to pronounced depression in primary antibody responses or because of anti-myeloma therapy. Infection is a major risk factor for early deaths among these patients. The impact of blood stream infections (BSI) on newly diagnosed myeloma patients has been less studied. We aimed to study the incidence and risk factors of BSI within 3 months after diagnosis of multiple myeloma in a tertiary referral center...
January 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28046078/immune-response-in-calves-vaccinated-with-type-three-secretion-system-antigens-and-shiga-toxin-2b-subunit-of-escherichia-coli-o157-h7
#8
Luisina Martorelli, Sergio Garbaccio, Daniel A Vilte, Adriana A Albanese, María P Mejías, Marina S Palermo, Elsa C Mercado, Cristina E Ibarra, Angel A Cataldi
Ruminants are the primary reservoir of Shiga-toxin producing Escherichia coli (STEC) O157:H7 and the main source of infection for humans. The aim of this study was to assess the immunogenic properties of a candidate vaccine consisting on the recombinant proteins of E. coli O157:H7 IntiminC280, the carboxy-terminal fraction of Intimin γ, EspB and the fusion protein between the B subunit of Stx2 and Brucella Lumazine Synthase (BLS)(BLS-Stx2B), in Holstein Fresian calves.To accomplish this goal we vaccinated calves with two doses of different vaccine formulations: 2 antigens (IntiminC280, EspB), 3 antigens (IntiminC280, EspB, BLS-Stx2B), BLS-Stx2B alone and a control non-vaccinated group...
2017: PloS One
https://www.readbyqxmd.com/read/28045585/immunogenicity-and-safety-of-purified-vero-cell-rabies-vaccine-pvrv-under-zagreb-2-1-1-or-5-dose-essen-regimen-in-chinese-adults-aged-50-and-above
#9
Jing Wang, FengJi Luo, ZiJian Feng, Li Li, YunHua Bai, Xing Ai, JianXin Ma, Zheng Zhang, NianMin Shi
BACKGROUND: Two kinds of regimens (2-1-1 and 1-1-1-1-1) can be selected after Zagreb regimen(2-1-1)of PVRV was officially approved in Beijing in January 2015. Up to now, the subjects for most studies about the comparison between Zagreb and Essen regimen are under 50 years old, rarely at and above. Aging of the immune system may result in decreasing efficacy of vaccination, especially for adults aged above 65-70 years. This study compared the safety and immunogenicity of the Zagreb and Essen regimen in Chinese adults aged 50 and above with the goal to provide a supplemental data for this age group...
January 3, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28035261/cellular-and-humoral-immunity-in-a-wild-mammal-variation-with-age-sex-and-association-with-overwinter-survival
#10
Rebecca L Watson, Tom N McNeilly, Kathryn A Watt, Josephine M Pemberton, Jill G Pilkington, Martin Waterfall, Phoebe R T Hopper, Daniel Cooney, Rose Zamoyska, Daniel H Nussey
Immune defenses are expected to be crucial for survival under the considerable parasite pressures experienced by wild animals. However, our understanding of the association between immunity and fitness in nature remains limited due to both the complexity of the vertebrate immune system and the often-limited availability of immune reagents in nonmodel organisms. Here, we use methods and reagents developed by veterinary researchers for domestic ungulates on blood samples collected from a wild Soay sheep population, to evaluate an unusually broad panel of immune parameters...
December 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28008331/a-meningococcal-outer-membrane-vesicle-vaccine-incorporating-genetically-attenuated-endotoxin-dissociates-inflammation-from-immunogenicity
#11
David J Dowling, Holly Sanders, Wing Ki Cheng, Sweta Joshi, Spencer Brightman, Ilana Bergelson, Carlo Pietrasanta, Simon D van Haren, Sandra van Amsterdam, Jeffrey Fernandez, Germie P J M van den Dobbelsteen, Ofer Levy
BACKGROUND: Group B Neisseria meningitidis, an endotoxin-producing Gram-negative bacterium, causes the highest incidence of group B meningococcus (MenB) disease in the first year of life. The Bexsero vaccine is indicated in Europe from 8 weeks of age. Endotoxin components of outer membrane vesicles (OMVs) or soluble lipopolysaccharide (LPS) represent a potential source of inflammation and residual reactogenicity. The purpose of this study was to compare novel candidate MenB vaccine formulations with licensed vaccines, including Bexsero, using age-specific human in vitro culture systems...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/28007780/ficin-treated-red-cells-help-identify-clinically-significant-alloantibodies-masked-as-reactions-of-undetermined-specificity-in-gel-microtubes
#12
Ben C Hill, Courtney A Hanna, Jill Adamski, Huy P Pham, Marisa B Marques, Lance A Williams
Non-specific antibodies or antibodies of undetermined significance (AUS) often pose problems for a blood bank technologist and physician. It is well known that antibodies can weaken and evanesce over time, thus eluding detection by routine blood bank techniques. Special enhancement techniques exist (eg, ficin treatment); however, they are often underutilized due to concerns over expense. Ficin is known to enhance reactivity caused by antibodies in the ABO, Rh, Kidd, Lewis, I, and P blood group systems, while destroying reactivity of antibodies in the Duffy, and MNS blood group systems...
December 22, 2016: Laboratory Medicine
https://www.readbyqxmd.com/read/28002595/matrix-metalloproteinase-gene-polymorphisms-and-susceptibility-to-systemic-sclerosis
#13
T F Rech, S B C Moraes, M Bredemeier, J de Paoli, J C T Brenol, R M Xavier, J A B Chies, D Simon
The major pathological hallmark of the systemic sclerosis (SSc) is skin and internal organ fibrosis, which results from normal tissue architecture alterations and extracellular matrix (ECM) protein deposition. ECM components are degraded by matrix metalloproteinases (MMP). Promoter region polymorphisms in MMP genes may influence gene expression, resulting in an imbalance between ECM protein production and degradation. Here, we analyzed MMP1 -1607 1G/2G (rs1799750), MMP3 -1171 5A/6A (rs3025058), and MMP9 -1562 C/T (rs3918242) polymorphisms in relation to susceptibility to SSc and its clinical features...
December 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27993129/hepatitis-viruses-in-ethiopia-a-systematic-review-and-meta-analysis
#14
Yeshambel Belyhun, Melanie Maier, Andargachew Mulu, Ermias Diro, Uwe Gerd Liebert
BACKGROUND: The existing seroepidemiological data on viral hepatitis in Ethiopia showed a wide variation in prevalence pattern and the clinical and public health burden have been underestimated. The aim of this systematic review and meta-analysis was to provide a clear and comprehensive estimation of viral hepatitis epidemiology and the potential clinical burdens in Ethiopia. METHODS: A comprehensive literature search was carried out from five decades (1968-2015) published studies from biomedical databases; PubMed, Google scholar, Medline and Web of Science...
December 19, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27928002/adjuvanting-an-siv-vaccine-with-tlr-ligands-encapsulated-in-nanoparticles-induces-persistent-antibody-responses-and-enhanced-protection-in-trim5%C3%AE-restrictive-macaques
#15
Sudhir Pai Kasturi, Pamela A Kozlowski, Helder I Nakaya, Matheus C Burger, Pedro Russo, Mathew Pham, Yevgeniy Kovalenkov, Eduardo L V Silveira, Colin Havenar-Daughton, Samantha L Burton, Katie M Kilgore, Mathew J Johnson, Rafiq Nabi, Traci Legere, Zarpheen Jinnah Sher, Xuemin Chen, Rama R Amara, Eric Hunter, Steven E Bosinger, Paul Spearman, Shane Crotty, Francois Villinger, Cynthia A Derdeyn, Jens Wrammert, Bali Pulendran
: Our previous work has shown that antigens adjuvanted with specific ligands for toll-like receptor 4 (TLR4) and TLR7/8 encapsulated in poly (lactic-co-glycolic acid) (PLGA) based nanoparticles (NP), induced robust and durable immune responses in mice and macaques. We investigated the efficacy of these NP adjuvants in inducing protective immunity against simian immunodeficiency virus (SIV). Rhesus macaques (RMs) were immunized with NP containing TLR4 and TLR7/8 agonists mixed with soluble recombinant SIVmac239 derived envelope (Env) gp140 and Gag p55 (Protein), or with virus like particles (VLP) containing SIVmac239 Env and Gag...
December 7, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27914960/aloe-vera-aloe-barbadensis-miller-supplemented-probiotic-lassi-prevents-shigella-infiltration-from-epithelial-barrier-into-systemic-blood-flow-in-mice-model
#16
Shaik Abdul Hussain, Girdhari Ramdas Patil, Srinu Reddi, Vidhu Yadav, Ramesh Pothuraju, Ram Ran Bijoy Singh, Suman Kapila
The aim of present work was to investigate preventive role of orally administered Aloe vera supplemented probiotic lassi (APL) on Shigella dysenteriae infection in mice. At the end of experimental period (2, 5 and 7 days of challenging), different organs such as spleen, liver, small intestine, large intestine, and peritoneal fluid were collected and assessed for Shigella colonization. Secretary IgA was estimated in intestinal fluid. Blood was collected in heparinized tubes for various haematological studies...
January 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27913515/cellular-immune-responses-in-red-blood-cell-alloimmunization
#17
James C Zimring, Krystalyn E Hudson
In excess of 340 blood group antigens have now been described that vary between individuals. Thus, any unit of blood that is nonautologous represents a significant dose of alloantigen. Most blood group antigens are proteins, which differ by a single amino acid between donors and recipients. Approximately 1 out of every 70 individuals are transfused each year (in the United States alone), which leads to antibody responses to red blood cell (RBC) alloantigens in some transfusion recipients. When alloantibodies are formed, in many cases, RBCs expressing the antigen in question can no longer be safely transfused...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27895641/pneumococcal-polysaccharide-vaccination-elicits-igg-anti-a-b-blood-group-antibodies-in-healthy-individuals-and-patients-with-type-i-diabetes-mellitus
#18
Wendelin Wolfram, Kai M T Sauerwein, Christoph J Binder, Nicole Eibl-Musil, Hermann M Wolf, Michael B Fischer
HYPOTHESIS: Blood group antibodies are natural antibodies that develop early in life in response to cross-reactive environmental antigens in the absence of antigen encounter. Even later in life structural similarities in saccharide composition between environmental antigens such as bacterial polysaccharides and blood group A/B antigens could lead to changes in serum levels, IgM/IgG isotype, and affinity maturation of blood group anti-A/B antibodies. We addressed the question whether immunization with pneumococcal polysaccharide (PnP) vaccine Pneumo 23 Vaccine "Pasteur Merieux" (Pn23) could have such an effect in patients with type I diabetes mellitus (DM I), an autoimmune disease where an aberrant immune response to microbial antigens likely plays a role...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27894129/isolated-fetal-ascites-neonatal-outcome-in-51-cases-observed-in-a-tertiary-referral-center
#19
Vincenzo Davide Catania, Alessia Muru, Marcella Pellegrino, Erika Adalgisa De Marco, Filomena Valentina Paradiso, Carlo Manzoni, Lorenzo Nanni, Lucia Masini
Introduction Prenatal detection of isolated ascites is a rare finding on ultrasound, usually suggestive of an underlying pathology that may negatively impact on the pregnancy and neonatal outcome. The purpose of the present study was to evaluate the outcome of primary isolated ascites in relation to gestational age (GA) at diagnosis. Materials and Methods Data were prospectively collected for fetuses with ascites that have been followed in our center of prenatal diagnosis and therapy from 2004 to 2014. Patients have been divided in group I when ascites was detected before the 24th week of GA and group II if it was noticed later...
November 28, 2016: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27893356/single-stranded-dna-aptamer-targeting-and-neutralization-of-anti-d-alloantibody-a-potential-therapeutic-strategy-for-haemolytic-diseases-caused-by-rhesus-alloantibody
#20
Yinze Zhang, Fan Wu, Manni Wang, Naibao Zhuang, Huayou Zhou, Hua Xu
BACKGROUND: Rhesus (Rh) D antigen is the most important antigen in the Rh blood group system because of its strong immunogenicity. When RhD-negative individuals are exposed to RhD-positive blood, they may produce anti-D alloantibody, potentially resulting in delayed haemolytic transfusion reactions and Rh haemolytic disease of the foetus and newborn, which are difficult to treat. Inhibition of the binding of anti-D antibody with RhD antigens on the surface of red blood cells may effectively prevent immune haemolytic diseases...
November 11, 2016: Blood Transfusion, Trasfusione del Sangue
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