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https://www.readbyqxmd.com/read/29665817/elevated-il-17-levels-in-semi-immune-anaemic-mice-infected-with-plasmodium-berghei-anka
#1
Gideon Kofi Helegbe, Nguyen Tien Huy, Tetsuo Yanagi, Mohammed Nasir Shuaibu, Mihoko Kikuchi, Mahamoud Sama Cherif, Kenji Hirayama
BACKGROUND: Alterations in inflammatory cytokines and genetic background of the host contribute to the outcome of malaria infection. Despite the promising protective role of IL-17 in infections, little attention is given to further understand its importance in the pathogenesis of severe malaria anaemia in chronic/endemic situations. The objective of this study, therefore, was to evaluate IL-17 levels in anaemic condition and its association with host genetic factors. METHODS: Two mice strains (Balb/c and CBA) were crossed to get the F1 progeny, and were (F1, Balb/c, CBA) taken through 6 cycles of Plasmodium berghei (ANKA strain) infection and chloroquine/pyrimethamine treatment to generate semi-immune status...
April 17, 2018: Malaria Journal
https://www.readbyqxmd.com/read/29665816/selective-localization-of-igg-from-cerebrospinal-fluid-to-brain-parenchyma
#2
Marlene Thorsen Mørch, Sofie Forsberg Sørensen, Reza Khorooshi, Nasrin Asgari, Trevor Owens
BACKGROUND: Encounter of autoantibodies with specific antigens can lead to hypersensitivity reactions and pathology. In multiple sclerosis and neuromyelitis optica spectrum disease (NMOSD), immunoglobulin-G (IgG) deposition has been observed in pathological lesions in the central nervous system. The paradigmatic autoantibodies in NMOSD are specific for the water channel aquaporin-4, localized to astrocytic end-feet at the blood-brain barrier and ependymal cells at the cerebrospinal fluid-brain barrier...
April 17, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29665238/cp-25-alleviates-experimental-sj%C3%A3-gren-s-syndrome-features-in-nod-ltj-mice-and-modulates-t-lymphocyte-subsets
#3
Fang Gu, Shixia Xu, Pengying Zhang, Xiaoyun Chen, Yujing Wu, Chun Wang, Mei Gao, Min Si, Xinming Wang, Korner Heinrich, Huaxun Wu, Wei Wei
Primary Sjögren's syndrome (pSS) is a chronic inflammatory autoimmune illness of the moisture-producing glands such as salivary glands that is characterized by various immune abnormalities. The aetiology of pSS remains unclear and there is no curative agent. In this study, we investigated the putative therapeutic effects on a NOD/Ltj mouse model of Sjögren's syndrome-like disorders of an ester derivative of paeoniflorin, Paeoniflorin-6'O-benzene (termed CP-25). Our study showed that CP-25 alleviated effectively clinical manifestations in NOD/Ltj mice resulting for example in increased salivary flow and reduced histopathological scores...
April 17, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29665046/intrathecal-igm-production-a-promising-high-risk-marker-in-cis-patients
#4
André Huss, Ahmed Abdelhak, Steffen Halbgebauer, Benjamin Mayer, Makbule Senel, Markus Otto, Hayrettin Tumani
Markers predicting the course of patients with clinically isolated syndrome (CIS) towards multiple sclerosis (MS) are urgently needed. We evaluated the predictive values of an intrathecal IgG and IgM production with different methods towards conversion to definite MS according to revised McDonald 2010 criteria in a cohort of 126 CIS patients. An intrathecal IgM production showed the highest likelihood ratio for the conversion of CIS patients to definite MS of 6.3, whereas it was 1.4 for oligoclonal IgG bands...
April 17, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29663448/seroprevalence-molecular-epidemiology-and-quantitation-of-parvovirus-b19-dna-levels-in-iranian-blood-donors
#5
Maryam Zadsar, Arezoo Aghakhani, Mohammad Banifazl, Monireh Kazemimanesh, Seyed Morteza Tabatabaei Yazdi, Setareh Mamishi, Anahita Bavand, Mona Sadat Larijani, Amitis Ramezani
Human parvovirus B19 (B19) infection is common among blood donors, and healthy blood donors can transmit virus via transfusion. Due to resistance of B19 to viral inactivation methods, there is a potential concern regarding transfusion safety in blood products. We aimed to determine the seroprevalence, molecular epidemiology and quantitation of B19 DNA levels in blood donors in Tehran, Iran. 500 blood donors from Blood Transfusion Research Center were studied. ELISA was used for detection of B19 IgG and IgM and nested PCR was carried out for detection of B19 DNA...
April 16, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29662676/-toxoplasma-gondii-exposure-and-epilepsy-a-matched-case-control-study-in-a-public-hospital-in-northern-mexico
#6
Cosme Alvarado-Esquivel, Yazmin Del Rosario Rico-Almochantaf, Jesús Hernández-Tinoco, Gerardo Quiñones-Canales, Luis Francisco Sánchez-Anguiano, Jorge Torres-González, Eda Guadalupe Ramírez-Valles, Andrea Minjarez-Veloz
Objectives: This study aimed to determine the association between infection with Toxoplasma gondii and epilepsy in patients attended to in a public hospital in the northern Mexican city of Durango. Methods: We performed an age- and gender-matched case-control study of 99 patients suffering from epilepsy and 99 without epilepsy. Sera of participants were analyzed for anti- T. gondii IgG and IgM antibodies using commercially available enzyme-linked immunoassays. Seropositive samples to T...
2018: SAGE Open Medicine
https://www.readbyqxmd.com/read/29660259/hepatitis-e-seroprevalence-in-the-americas-a-systematic-review-and-meta-analysis
#7
Thomas Horvatits, Ann-Kathrin Ozga, Dirk Westhoelter, Johannes Hartl, Carolin Manthey, Marc Lütgehetmann, Geraldine Rauch, Levente Kriston, Ansgar W Lohse, Richard Bendall, Heiner Wedemeyer, Harry R Dalton, Sven Pischke
BACKGROUND & AIMS: While hepatitis E virus (HEV) infections are a relevant topic in Europe, knowledge about epidemiology of HEV infections in the USA and Latin America is still limited. Aim of this study was to estimate anti-HEV IgG seroprevalence in the Americas and to assess whether low socioeconomic status is associated with HEV exposure. METHODS: We performed a systematic review and meta-analysis. Literature search was performed in PubMed for articles published 01/1994-12/2016...
April 16, 2018: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/29660060/dietary-effects-of-bacillus-subtilis-fmbj-on-growth-performance-small-intestinal-morphology-and-its-antioxidant-capacity-of-broilers
#8
Kaiwen Bai, Chengcheng Feng, Luyi Jiang, Ligen Zhang, Jingfei Zhang, Lili Zhang, Tian Wang
This paper aimed to study the dietary effects of Bacillus subtilis fmbj (BS fmbj) on growth performance, small intestinal histomorphology, and its antioxidant capacity of broilers at 21 d of raising. A total of 300 1-d old male Arbor Acres broilers were randomly assigned to 5 groups: broilers fed the basal diets with 0 g/kg BS fmbj (CON), 0.2 g/kg BS fmbj (BS-1), 0.3 g/kg BS fmbj (BS-2), 0.4 g/kg BS fmbj (BS-3), and 0.5 g/kg BS fmbj (BS-4). The results showed that there were no differences in the growth performance among treatments during the trail...
April 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29659924/evaluation-of-a-booster-dose-of-pentavalent-rotavirus-vaccine-co-administered-with-measles-yellow-fever-and-meningitis-a-vaccines-in-9-month-old-malian-infants
#9
Fadima C Haidara, Milagritos D Tapia, Samba O Sow, Moussa Doumbia, Flanon Coulibaly, Fatoumata Diallo, Awa Traoré, Mamoudou Kodio, Corey L Kelly, Meagan Fitzpatrick, Karen Kotloff, John C Victor, Kathleen Neuzil
Background: Rotavirus vaccines given to infants are safe and efficacious. A booster dose of rotavirus vaccine could extend protection into the second year of life in low resource countries. Methods: We conducted an open-label, individual-randomized trial in Bamako, Mali. We assigned 600 9- to 11-month old infants to measles (MV), yellow fever (YFV), and meningococcal A conjugate vaccines with or without pentavalent rotavirus vaccine (PRV). We assessed non-inferiority of seroconversion and seroresponse rates (<10% difference) to MV, YFV and MenAV...
April 12, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29658452/-clinical-features-and-gene-mutations-of-primary-immunodeficiency-disease-an-analysis-of-7-cases
#10
Jun-Chao Wang, Xiao-Xue Liu
This research investigated the clinical features of immunodeficiency disease and the features of the mutation of its pathogenic genes. All 7 patients were boys aged 5 months to 4 years and 6 months and had a history of recurrent respiratory infection and pneumonia, low levels of IgM and IgG, and abnormal absolute values or percentages of lymphocyte subsets. High-throughput sequencing showed c.1684C>T mutations in the BTK gene in patient 1 and IVS8+2T>C splice site mutations in the BTK gene in patient 2...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29657407/intranasal-administration-of-inactivated-avian-influenza-virus-of-h5n1-subtype-vaccine-induced-systemic-immune-response-in-chicken-and-mice
#11
I N Suartha, G A A Suartini, I W Wirata, N M A R K Dewi, G N N Putra, G A Y Kencana, G N Mahardika
Aim: The need for non-parenteral administration of inactivated avian influenza virus of H5N1 subtype (AIV-H5N1) vaccine is paramount. Here, we provide preliminary data on the immune response of chicken and mice after intranasal administration of AIV-H5N1-inactivated vaccine with ISCOMS, Inmunair (INM), and combined ISCOMS and INM as an adjuvant. Materials and Methods: The AIV isolate of A/Chicken/Denpasar/01/2004 (H5N1) was cultivated in specific pathogen-free chicken eggs and inactivated with formaldehyde...
February 2018: Veterinary World
https://www.readbyqxmd.com/read/29656787/fifty-year-incidence-of-waldenstr%C3%A3-m-macroglobulinemia-in-olmsted-county-minnesota-from-1961-through-2010-a-population-based-study-with-complete-case-capture-and-hematopathologic-review
#12
Robert A Kyle, Dirk R Larson, Ellen D McPhail, Terry M Therneau, Angela Dispenzieri, Shaji Kumar, Prashant Kapoor, James R Cerhan, S Vincent Rajkumar
OBJECTIVE: To determine the incidence of Waldenström macroglobulinemia (WM) in a strictly defined geographic area over a 50-year period. PATIENTS AND METHODS: All residents of Olmsted County with a diagnosis of WM, consisting of a monoclonal IgM protein of any size and/or 10% or more lymphoplasmacytic infiltration of the bone marrow along with anemia, constitutional symptoms, hyperviscosity, lymphadenopathy, or hepatosplenomegaly requiring therapy, were identified from January 1, 1961, to December 31, 2010...
April 12, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29656134/seroprevalence-and-risk-factors-of-hepatitis-e-virus-infection-in-cancer-patients-in-eastern-china
#13
Meng-Jie Bai, Na Zhou, Wei Dong, Guang-Xing Li, Wei Cong, Xing-Quan Zhu
OBJECTIVES: Hepatitis E virus (HEV) is a single-stranded RNA virus infecting a variety of animals and humans. However, little is known of HEV infection among cancer patients in China. This study provides new epidemiological data for the prevalence of co-infection of HEV in cancer patients, indicating that HEV infection is common in this group. METHODS: We recruited a total of 950 cancer patients and 950 control volunteers from Shandong Province, eastern China, to participate in our investigation...
April 12, 2018: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29655626/a-toddler-pcv-booster-dose-following-3-infancy-priming-doses-increases-circulating-serotype-specific-igg-levels-but-does-not-increase-protection-against-carriage
#14
Ron Dagan, Shalom Ben-Shimol, Birgit Simell, David Greenberg, Nurith Porat, Helena Käyhty, Noga Givon-Lavi
BACKGROUND: We compared PCV7 serological response and protection against carriage in infants receiving 3 doses (2, 4, 6 months; 3+0 schedule) to those receiving a booster (12 months; 3+1). METHODS: A prospective, randomized controlled study, conducted between 2005 and 2008, before PCVs were implemented in Israel. Healthy infants were randomized 1:1:1 to receive 3+1, 3+0 and 0+2 (control group; 12, 18 months doses). Nasopharyngeal/oropharyngeal swabs were obtained at all visits...
April 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29655487/frequency-of-aquaporin-4-immunoglobulin-g-in-longitudinally-extensive-transverse-myelitis-with-antiphospholipid-antibodies
#15
Hilda Guerra, Sean J Pittock, Kevin G Moder, James P Fryer, Avi Gadoth, Eoin P Flanagan
Antiphospholipid (aPL) antibodies have historically been postulated to cause a poorly understood inflammatory myelitis. Neuromyelitis optica spectrum disorder (NMOSD) causes an inflammatory longitudinally extensive transverse myelitis (LETM). In 2004, aquaporin-4 immunoglobulin G (AQP4-IgG) was first reported as a highly specific (>99%) serum diagnostic biomarker of NMOSD, distinguishing it from other disorders (eg, multiple sclerosis). We sought to assess the frequency of AQP4-IgG (and thus NMOSD diagnosis) in LETM with aPL antibodies...
April 11, 2018: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29652945/clinical-evaluation-and-validation-of-laboratory-methods-for-the-diagnosis-of-bordetella-pertussis-infection-culture-polymerase-chain-reaction-pcr-and-anti-pertussis-toxin-igg-serology-igg-pt
#16
Adria D Lee, Pamela K Cassiday, Lucia C Pawloski, Kathleen M Tatti, Monte D Martin, Elizabeth C Briere, M Lucia Tondella, Stacey W Martin
INTRODUCTION: The appropriate use of clinically accurate diagnostic tests is essential for the detection of pertussis, a poorly controlled vaccine-preventable disease. The purpose of this study was to estimate the sensitivity and specificity of different diagnostic criteria including culture, multi-target polymerase chain reaction (PCR), anti-pertussis toxin IgG (IgG-PT) serology, and the use of a clinical case definition. An additional objective was to describe the optimal timing of specimen collection for the various tests...
2018: PloS One
https://www.readbyqxmd.com/read/29651290/anti-transforming-growth-factor-%C3%AE-igg-elicits-a-dual-effect-on-calcium-oxalate-crystallization-and-progressive-nephrocalcinosis-related-chronic-kidney-disease
#17
Stefanie Steiger, Julia Felicitas Grill, Qiuyue Ma, Tobias Bäuerle, Jutta Jordan, Michaela Smolle, Claudia Böhland, Maciej Lech, Hans-Joachim Anders
Crystallopathies are a heterogeneous group of diseases caused by intrinsic or environmental microparticles or crystals, promoting tissue inflammation and scarring. Certain proteins interfere with crystal formation and growth, e.g., with intrarenal calcium oxalate (CaOx) crystal formation, a common cause of kidney stone disease or nephrocalcinosis-related chronic kidney disease (CKD). We hypothesized that immunoglobulins can modulate CaOx microcrystal formation and crystal growth and that therefore, biological IgG-based drugs designed to specifically target disease modifying proteins would elicit a dual effect on the outcome of CaOx-related crystallopathies...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29649748/rapid-and-selective-sampling-of-igg-from-skin-in-less-than-1-min-using-a-high-surface-area-wearable-immunoassay-patch
#18
Jacob W Coffey, Simon R Corrie, Mark A F Kendall
Microprojection array (MPA) patches are an attractive approach to selectively capture circulating proteins from the skin with minimal invasiveness for diagnostics at the point-of-care or in the home. A key challenge to develop this technology is to extract sufficient quantities of specific proteins from within the skin to enable high diagnostic sensitivity within a convenient amount of time. To achieve this, we investigated the effect of MPA geometry (i.e. projection density, length and array size) on protein capture...
March 22, 2018: Biomaterials
https://www.readbyqxmd.com/read/29645287/seroprevalence-molecular-epidemiology-and-quantitation-of-parvovirus-b19-dna-levels-in-iranian-blood-donors
#19
Maryam Zadsar, Arezoo Aghakhani, Mohammad Banifazl, Monireh Kazemimanesh, Seyed Morteza Tabatabaei Yazdi, Setareh Mamishi, Anahita Bavand, Mona Sadat Larijani, Amitis Ramezani
Human parvovirus B19 (B19) infection is common among blood donors, and healthy blood donors can transmit virus via transfusion. Due to resistance of B19 to viral inactivation methods, there is a potential concern regarding transfusion safety in blood products. We aimed to determine the seroprevalence, molecular epidemiology and quantitation of B19 DNA levels in blood donors in Tehran, Iran. 500 blood donors from Blood Transfusion Research Center were studied. ELISA was used for detection of B19 IgG and IgM and nested PCR was carried out for detection of B19 DNA...
April 12, 2018: Journal of Medical Virology
https://www.readbyqxmd.com/read/29629396/anti-nmda-receptor-encephalitis-and-nonencephalitic-hsv-1-infection
#20
Amy Salovin, Jason Glanzman, Kylie Roslin, Thais Armangue, David R Lynch, Jessica A Panzer
Objective: To determine whether there is an association between nonencephalitic herpes simplex virus 1 (HSV-1) infection and anti-NMDA receptor encephalitis (anti-NMDARE). Methods: Antibody testing was performed using samples from 2 cohorts in a case-control observational study. The cohort "Philadelphia" included 16 serum samples of pediatric anti-NMDARE cases and 42 age-matched controls with other neuroinflammatory disorders studied at the Children's Hospital of Philadelphia and University of Pennsylvania...
July 2018: Neurology® Neuroimmunology & Neuroinflammation
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