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https://www.readbyqxmd.com/read/28737857/seroprevalence-of-bordetella-pertussis-among-vaccinated-and-unvaccinated-pregnant-women-and-newborn-infants-in-a-university-hospital-of-buenos-aires
#1
Juan J Bosch, Hilaria Fernández, Fernando P Polak, Gabriel Musante, Romina Libster, Manuel Rocca Rivarola
INTRODUCTION: Pertussis is a highly contagious disease caused by Bordetella pertussis. It poses a high morbidity and mortality rate, especially among infants younger than 6 months old. In Argentina, pertussis incidence and mortality have increased over the past three decades. OBJETIVE: To establish Bordetella pertussisantibody titers among pregnant women in their third trimester and among newborn infants, as measured in cord blood. METHODS: This was an observational, cross-sectional study...
August 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28737625/a-national-seroepidemiologic-survey-of-pertussis-among-school-children-in-taiwan
#2
Chun-Yi Lu, Hsing-Chen Tsai, Yhu-Chering Huang, Daniel Tsung-Ning Huang, Ching-Chuan Liu, Li-Min Huang
BACKGROUND: In 2009, a booster dose of acellular pertussis vaccine for children at or before entry to elementary school was added to the national immunization program in Taiwan, which includes pertussis vaccination at 2, 4, 6, and 18 months of age. In 2013, a study to assess the level of humoral immunity against pertussis in elementary and junior high school children and adolescents was conducted. METHODS: A multistage stratified systematic sampling method was applied to randomly selected grade 1 to 9 school children for testing...
July 20, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28736941/in-vivo-neutralization-of-%C3%AE-4-and-%C3%AE-7-integrins-inhibits-eosinophil-trafficking-and-prevents-lung-injury-during-tropical-pulmonary-eosinophilia-in-mice
#3
Pankaj Sharma, Aditi Sharma, Mrigank Srivastava
Integrins regulate leukocyte trafficking during homeostasis and inflammatory conditions. However, the role of α4 and β7 integrins in guiding eosinophil transmigration into the lungs during filarial manifestation of Tropical Pulmonary Eosinophilia (TPE) has not been explored. In this study, mice exhibiting TPE manifestations were administered with in vivo neutralizing antibodies against integrins α4 and β7 or their combination and immuno-pathological parameters were evaluated. Results show an intact lung barrier, significantly lower lung inflammation and reduced eosinophil counts in the Bronchoalveolar lavage fluid and lungs of mice receiving anti-α4(+) β7 treatment...
July 24, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28736824/evaluation-of-lumazine-synthase-from-bacillus-anthracis-as-a-presentation-platform-for-polyvalent-antigen-display
#4
Yangjie Wei, Newton Wahome, Greta VanSlyke, Neal Whitaker, Prashant Kumar, Michael L Barta, Wendy L Picking, David B Volkin, Nicholas J Mantis, C Russell Middaugh
Polyvalent antigen display is an effective strategy to enhance the immunogenicity of subunit vaccines by clustering them in an array-like manner on a scaffold system. This strategy results in a higher local density of antigens, increased high avidity interactions with B cells and other antigen presenting cells, and therefore a more effective presentation of vaccine antigens. In the present study, we used lumazine synthase (LS), an icosahedral symmetry capsid derived from Bacillus anthracis, as a scaffold to present 60 copies of a linear B cell epitope (PB10) from the ricin toxin fused to the C terminus of LS via four different linkers...
July 24, 2017: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/28736027/suppression-of-delayed-xenograft-rejection-by-resveratrol-in-a-hamster-to-rat-cardiac-transplantation-model
#5
Y Lian, C Gao, Y Wu, J Xia, Y Leng, Y Liu, M Zhu, J Chen, Z Qi
BACKGROUND: Delayed xenograft rejection (DXR) is an insurmountable barrier for xenotransplantation. Previous studies reported that hamster hearts transplanted into rats undergo DXR and stop functioning after the cessation of immunosuppression. Herein, we investigated the effects of resveratrol on preventing DXR in a hamster-to-rat vascularized cardiac xenograft model. METHODS: Hamster hearts were engrafted into Lewis rat recipients. Recipient rats received a graft acceptance-inducing treatment of leflunomide and FK506 for 2 weeks to prevent acute xenograft rejection (AXR)...
July 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28735965/safety-profile-and-immunologic-responses-of-a-novel-vaccine-against-shigella-sonnei-administered-intramuscularly-intradermally-and-intranasally-results-from-two-parallel-randomized-phase-1-clinical-studies-in-healthy-adult-volunteers-in-europe
#6
Odile Launay, David J M Lewis, Alessandra Anemona, Pierre Loulergue, Jo Leahy, Antonella Silvia Sciré, Anaïs Maugard, Elisa Marchetti, Stefano Zancan, Zhiming Huo, Simona Rondini, Rachid Marhaba, Oretta Finco, Laura B Martin, Jochen Auerbach, Daniel Cohen, Allan Saul, Christiane Gerke, Audino Podda
BACKGROUND: Approximately 164,000 deaths yearly are due to shigellosis, primarily in developing countries. Thus, a safe and affordable Shigella vaccine is an important public health priority. The GSK Vaccines Institute for Global Health (GVGH) developed a candidate Shigella sonnei vaccine (1790GAHB) using the Generalized Modules for Membrane Antigens (GMMA) technology. The paper reports results of 1790GAHB Phase 1 studies in healthy European adults. METHODS: To evaluate the safety and immunogenicity profiles of 1790GAHB, we performed two parallel, phase 1, observer-blind, randomized, placebo-controlled, dose escalation studies in France ("study 1") and the United Kingdom ("study 2") between February 2014 and April 2015 (ClinicalTrials...
July 15, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28735326/high-seroprevalence-of-cmv-among-women-of-childbearing-age-implicates-high-burden-of-congenital-cytomegalovirus-infection-in-poland
#7
Joanna Siennicka, Milena Dunal-Szcepaniak, Agnieszka Trzcińska, Paulina Godzik, Magdalena Rosińska
Cytomegaloviruses are common worldwide, with variable frequency of infections. The infection in pregnancy may lead to pregnancy loss or serious sequelae for the child. To understand the risk posed by CMV in Poland we conducted cross-sectional study on women aged 15-49 basing on existing serum bank. Age dependent incidence, the rates of congenital infection and sequelae were modelled from sero-prevalence, literature and demographic data. The overall anti-CMV IgG prevalence was 81.9% increasing from 74.3% in <30 years old to 94...
January 2, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28735306/the-serological-surveillance-of-hepatitis-e-virus-among-hunters-and-foresters-in-eastern-poland
#8
Marcin Weiner, Małgorzata Tokarska-Rodak, Dorota Plewik, Anna Pańczuk, Adam Szepeluk, Monika Krajewska
The aim of the study was the analysis of the occurrence of specific antibodies against HEV among hunters and foresters who are at risk to be exposed. The study group consisted of 210 hunters (23-80 years old) and 60 foresters (22-64 years old). Anti-HEV IgG were present in 3.81% of the samples of the hunters and in 5% of the samples of the foresters. The statistical analysis shows no significant differences in the results anti-HEV IgG between the groups of hunters and foresters (p = 0.5278). Significantly higher anti-HEV IgG titers were found in the older age group (> 55 years old)...
July 6, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/28735080/recombinant-truncated-e-protein-as-a-new-vaccine-candidate-against-nontypeable-h-influenzae-its-expression-and-immunogenic-evaluation
#9
Ava Behrouzi, Saeid Bouzari, Farzam Vaziri, Abolfazl Fateh, Parviz Afrough, Atefeh Davoudi Vijeh Motlagh, Seyed Davar Siadat
Protein E (PE) is a conserved entity observed in both nontypeable Haemophilus influenzae (NTHi) and encapsulated H. influenzae. This is a small surface lipoprotein, consisting of only 160 amino acids, involved in the adhesion of H. influenzae to various types of epithelial cells. A 384-bp-long fragment from NTHi PE was cloned into the prokaryotic expression vector pBAD-gIIIA. The recombinant protein was expressed with arabinose and then purified by affinity purification on an Ni-NTA agarose matrix. BALB/c mice were immunized by subcutaneous injection with purified recombinant truncated PE mixed with an alum adjuvant...
July 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28734952/potential-predictive-role-of-lipid-peroxidation-markers-for-type-2-diabetes-in-the-tunisian-population
#10
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/28734795/monoclonal-antibodies-in-multiple-myeloma-a-new-wave-of-the-future
#11
REVIEW
Daniel W Sherbenou, Tomer M Mark, Peter Forsberg
In 2015, 2 monoclonal antibodies were approved for the treatment of relapsed or refractory multiple myeloma (RRMM), elotuzumab and daratumumab. Elotuzumab is a monoclonal IgG-κ antibody directed against SLAMF7 (signaling lymphocytic activation molecule F7), a cell surface receptor involved in natural killer cell activation. Daratumumab is a monoclonal IgG-κ antibody that binds to CD38, a transmembrane protein found on the surface of myeloma cells and responsible for cellular adhesion and ectoenzymatic activity...
June 27, 2017: Clinical Lymphoma, Myeloma & Leukemia
https://www.readbyqxmd.com/read/28734227/continuous-delivery-of-neutralizing-antibodies-elevate-ccl2-levels-in-mice-bearing-mcf10ca1d-breast-tumor-xenografts
#12
Min Yao, Curtis Smart, Qingting Hu, Nikki Cheng
Chemokines are small soluble molecules that play critical roles in wound healing, infection, and cancer progression. In particular, overexpression of the C-C motif chemokine ligand 2 (CCL2) in multiple cancer types correlates with poor patient prognosis. Animal studies have shown that CCL2 signals to macrophages and breast cancer cells to promote tumor growth, invasion, and metastasis, indicating that CCL2 is a promising therapeutic target. However, the effectiveness of human-specific neutralizing antibodies has not been fully evaluated...
July 19, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28734155/activation-of-mtor-is-involved-in-anti-%C3%AE-2gpi-%C3%AE-2gpi-induced-expression-of-tissue-factor-and-il-8-in-monocytes
#13
Longfei Xia, Hong Zhou, Ting Wang, Yachao Xie, Ting Wang, Xiaoyan Wang, Jinchuan Yan
Previous study has demonstrated that activation of the mammalian target of rapamycin (mTOR) pathway in endothelial cells (ECs) results in the formation of chronic vascular lesions associated with antiphospholipid syndrome (APS). In addition, it has been shown that stimulation of monocytes and ECs by antiphospholipid antibodies (aPL) leads to a prothrombotic and proinflammatory state and up-regulated expression of tissue factor (TF) and inflammatory cytokines. However, the role of mTOR in pathogenic mechanisms of APS remains largely unexplored...
June 1, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28734096/association-of-toxoplasma-gondii-infection-with-schizophrenia-and-its-relationship-with-suicide-attempts-in-these-patients
#14
Maryam Ansari-Lari, Hassan Farashbandi, Fahimeh Mohammadi
OBJECTIVES: To investigate the association of schizophrenia and T. gondii, and to assess the association of infection with suicide attempts and age of onset of schizophrenia in these patients. METHODS: Case-control study Fars Province, southern Iran. Cases were individuals with psychiatric diagnosis of schizophrenia as per Diagnostic and Statistical Manual of Mental Disorders (DSM-IV) criteria. Controls were healthy blood donors, frequency matched with patients according to age and sex...
July 22, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28734074/association-of-clinical-and-serological-parameters-of-systemic-lupus-erythematosus-patients-with-epstein-barr-virus-antibody-profile
#15
Chougule D, Nadkar M, Rajadhyaksha A, Pandit P, Surve P, Dawkar N, Khadilkar P, Patwardhan M, Kaveri Sv, Ghosh K, Pradhan V
Epstein-Barr viral infection is one of the known environmental factors involved in development of Systemic Lupus Erythematous (SLE). Though not much is known about the exact role of EBV in SLE pathogenesis, the theory of switching of lytic and lysogenic cycles of Epstein-Barr virus in memory B-cells fits well with the periods of waning disease activity and intermittent flares in SLE patients. In this study, we investigate the association of EBV antibody profile with clinical and serological parameters in SLE...
July 22, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28733891/consequences-of-bisphenol-a-perinatal-exposure-on-immune-responses-and-gut-barrier-function-in-mice
#16
Yann Malaisé, Sandrine Ménard, Christel Cartier, Corinne Lencina, Caroline Sommer, Eric Gaultier, Eric Houdeau, Laurence Guzylack-Piriou
The potent immunomodulatory effect of the endocrine disruptor bisphenol A during development and consequences during life span are of increasing concern. Particular interests have been raised from animal studies regarding the risk of developing food intolerance and infection. We aimed to identify immune disorders in mice triggered by perinatal exposure to bisphenol A. Gravid mice were orally exposed to bisphenol (50 μg/kg body weight/day) from day 15 of pregnancy until weaning. Gut barrier function, local and systemic immunity were assessed in adult female offspring...
July 21, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28733756/glial-and-neuronal-antibodies-in-patients-with-idiopathic-intracranial-hypertension
#17
Güneş Altıokka-Uzun, Ece Erdağ, Betül Baykan, John Tzartos, Duygu Gezen-Ak, Bedia Samancı, Erdinç Dursun, Paraskevi Zisimopoulou, Katerina Karagiorgou, Christos Stergiou, Erdi Şahin, Esme Ekizoğlu, Murat Kürtüncü, Erdem Tüzün
Headache and visual disturbances are the main presenting symptoms of idiopathic intracranial hypertension (IIH) characterized by increased intracranial pressure (ICP) with an unknown cause. We aimed to investigate the antibodies against optic neuritis-associated glial antigens, aquaporin-4 (AQP4) and myelin oligodendrocyte glycoprotein (MOG) and uncharacterized neuronal membrane antigens in IIH patients. Consecutive patients diagnosed according to Friedman revised diagnostic criteria and control subjects were included after their consent...
July 21, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28733081/synapsin-antibodies-in-psychiatric-and-neurological-disorders-prevalence-and-clinical-findings
#18
Markus Höltje, Robert Mertens, Morten Brix Schou, Sverre Georg Saether, Elena Kochova, Sven Jarius, Harald Prüss, Lars Komorowski, Christian Probst, Friedemann Paul, Judith Bellmann-Strobl, Daniel Gitler, Fabio Benfenati, Johannes Piepgras, Gudrun Ahnert-Hilger, Klemens Ruprecht
OBJECTIVE: To study the prevalence of autoantibodies to synapsin in patients with psychiatric and neurological disorders and to describe clinical findings in synapsin antibody positive patients. METHODS: Sera of 375 patients with different psychiatric and neurological disorders and sera of 97 healthy controls were screened (dilution 1:320) for anti-synapsin IgG using HEK293 cells transfected with rat synapsin Ia. Positive sera were further analyzed by immunoblots with brain tissue from wild type and synapsin knock out mice and with HEK293 cells transfected with human synapsin Ia and Ib...
July 18, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28732781/immunoglobulin-and-b-cell-disturbances-in-patients-with-chronic-idiopathic-neutropenia
#19
Irene Mavroudi, Aristides G Eliopoulos, Charalampos Pontikoglou, Katerina Pyrovolaki, Athina Damianaki, Helen Koutala, Maria I Zervou, Maria Ximeri, Semeli Mastrodemou, Peggy Kanellou, George N Goulielmos, Helen A Papadaki
Chronic idiopathic neutropenia (CIN) is a granulocytic disorder associated with presence of activated, myelosuppressive T-lymphocytes. In the present study we have evaluated constituents of humoral immunity in CIN patients (n=48) compared to healthy controls (n=52). CIN patients displayed lower serum IgG levels due to a reduction in IgG1, IgG3, IgG4 but not IgG2, lower IgA and increased IgM levels compared to controls. The proportion of CD19(+) cells did not differ between patients and controls; however the proportion of the naïve IgD(+)/CD27(-) B-cells was increased and the proportion of class-switched memory IgD(-)/CD27(+) B-cells was decreased in the patients...
July 18, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28732540/rubella-sero-prevalence-among-children-in-kilimanjaro-region-a-community-based-study-prior-to-the-introduction-of-rubella-vaccine-in-tanzania
#20
Nikolas A S Chotta, Melina Mgongo, Jacqueline G Uriyo, Sia E Msuya, Babill Stray-Pedersen, Arne Stray-Pedersen
BACKGROUND: Childhood rubella infection is a mild, self-limiting illness. Rubella infection among pregnant women however, is a major public health concern. Depending on gestation age, it may result in fetal death, stillbirth or a new-born with congenital rubella syndrome (CRS). Maternal antibodies protect young infants from rubella infection and lifelong immunity is acquired by vaccination or post-rubella infection. This study aims at characterizing rubella infection and its epidemiology in the Kilimanjaro region, prior to the introduction of the rubella vaccine in Tanzania...
July 21, 2017: Italian Journal of Pediatrics
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