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Immunoglobulins

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https://www.readbyqxmd.com/read/29168888/apparent-seronegative-maternal-shingles-with-post-natal-mother-to-baby-transmission-of-varicella-zoster-virus
#1
Lin Pan, Nitesh Singh, Ruth Cannon, Joe Fawke, Julian W Tang
We present an unusual case of varicella zoster (VZ) virus IgG negative, yet clinically apparent, maternal shingles, which prompted the administration of VZ immunoglobulin to the newborn. The mother had no previous VZ vaccination. Eleven days later the baby developed a primary VZ infection, with only mild disease, likely as a result of the VZ immunoglobulin. The variable sensitivity of VZV IgG-specific assays is well-recognised. Thus, the ability of this particular VZV IgG assay to detect both maternal and infant VZV IgG, post-natally, suggests that the earlier VZV IgG negative results were due to lower circulating levels of maternal antibody...
November 23, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29168582/diagnostic-value-of-trait-antinuclear-antibodies-and-multiple-immunoglobulin-production-in-autoimmune-diseases
#2
Liping Wan, Hong Zhu, Yanan Gu, Hui Liu
BACKGROUND: Our article aims to evaluate the proportion of monospecific antinuclear antibodies (ANA) and polyclonal ANAs in patients with autoimmune diseases based on the results of an ANA panel and to evaluate the efficiency of trait ANAs as a novel diagnostic tool. This study also aims to investigate immunoglobulin production in autoimmune diseases by detecting different antibodies. METHODS: The serum ANA profile of 634 patients with autoimmune diseases was analyzed using the immunoblot method...
November 23, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29167838/yy1-controls-e%C3%AE-3-rr-dna-loop-formation-and-immunoglobulin-heavy-chain-class-switch-recombination
#3
Parul Mehra, Tatiana Gerasimova, Arindam Basu, Vibha Jha, Anupam Banerjee, Vishal Sindhava, Falon Gray, Corbett T Berry, Ranjan Sen, Michael L Atchison
No abstract text is available yet for this article.
November 29, 2016: Blood Advances
https://www.readbyqxmd.com/read/29167658/atypical-electrophysiological-findings-in-a-patient-with-acute-motor-and-sensory-axonal-neuropathy
#4
Viviana Versace, Stefania Campostrini, Frediano Tezzon, Sara Martignago, Markus Kofler, Leopold Saltuari, Luca Sebastianelli, Raffaele Nardone
Guillain-Barré syndrome (GBS) is an immune-mediated polyradiculoneuropathy with acute onset and rapid clinical worsening; early diagnosis and immunomodulating therapy can ameliorate the course of disease. During the first days, however, nerve conduction studies (NCSs) are not always conclusive. Here, we describe a 73-year-old man presenting with progressive muscular weakness of the lower limbs, ascending to the upper limbs, accompanied by distal sensory disturbances. Neuroimaging of brain and spine and NCSs were unremarkable; cerebrospinal fluid analysis revealed no albuminocytologic dissociation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29166977/analysis-of-pre-weaning-feeding-policies-and-other-risk-factors-influencing-growth-rates-in-calves-on-11-commercial-dairy-farms
#5
K F Johnson, N Chancellor, C C Burn, D C Wathes
Growth rates in pre-weaned calves influence their health, age at first calving and lifetime productivity. Many farms restrict milk rations to encourage solid feed intake and facilitate early weaning, but this can compromise growth. This study determined the milk feeding policies and associated growth rates on 11 commercial dairy farms in South East England, each following their normal management regime. Between 26 and 54 heifers were recruited per farm, providing a final cohort of 492, of which 71% were pure Holstein...
November 23, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29166939/acute-cerebellitis-in-adults-a-case-report-and-review-of-the-literature
#6
A Van Samkar, M N F Poulsen, H P Bienfait, R B Van Leeuwen
BACKGROUND: Acute cerebellitis is a rare disease with the majority of cases described in children. Little is known about the clinical characteristics and outcome in adults. CASE PRESENTATION: A 37-year-old Caucasian woman presented with headache, nausea, and photophobia, and was diagnosed as having a migraine attack. Two days later, she subsequently returned with aggravated headache, dysarthria and horizontal nystagmus. Magnetic resonance imaging (MRI) showed a swollen cerebellum and hydrocephalus and the patient was diagnosed with acute cerebellitis...
November 22, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29166869/multimodal-imaging-of-retinal-pigment-epithelial-detachments-in-patients-with-c3-glomerulopathy-case-report-and-review-of-the-literature
#7
Valeria Kheir, Ali Dirani, Matthieu Halfon, Jean-Pierre Venetz, Georges Halabi, Yan Guex-Crosier
BACKGROUND: To describe the optical coherence tomography angiograhy (OCTA) of drusenoid pigment epithelial detachments (PEDs) in a woman affected by Complement 3 (C3) glomerulopathy, which represents a spectrum of glomerular diseases characterized on fluorescent microscopy by C3 accumulation with absent, or scanty, immunoglobulin deposits. It is due to acquired or genetically defective alternative pathway control and is generally associated with drusen-like deposits in Bruch's membrane, as well as choriocapillaris...
November 22, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29165802/treatment-of-severe-drug-reactions-by-hemodialysis
#8
Rokea A El-Azhary, Michael Z Wang, Ashley B Wentworth, LaTonya J Hickson
BACKGROUND: Extracorporeal treatments such as hemodialysis and plasma exchange are lifesaving measures in the treatment of drug poisoning. This treatment method generally is not used for severe cutaneous and systemic drug reactions. METHODS: Here, we describe three cases wherein hemodialysis therapy was instrumental in reversing the adverse drug reaction. RESULTS: In the cases of severe cutaneous drug reactions reviewed, patients presented with linear immunoglobulin A bullous dermatosis, acute generalized exanthematous pustulosis, and toxic epidermal necrolysis...
November 22, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29165625/evidence-of-chikungunya-virus-circulation-in-the-terai-region-of-nepal-in-2014-and-2015
#9
Kishor Pandey, Basu Dev Pandey, Ram Rekha Chaurasiya, Mahesh Thakur, Biswas Neupane, Yogendra Shah, Mya Myat Ngwe Tun, Kouichi Morita
Background: Chikungunya virus (CHIKV) infection is an emerging viral disease in Nepal, with the reported by our laboratories in 2013. Because of the similarity in signs and symptoms to dengue virus (DENV) and misdiagnosis, the under-reporting of CHIKV infection in DENV-endemic areas of Nepal is very common. The aim of the present study is to identify CHIKV infection among patients with febrile illness during the 2014-2015 outbreaks. Methods: A total of 219 serum samples were tested for CHIKV and DENV by using enzyme-linked immunosorbent assays (ELISAs) to detect immunoglobulin M (IgM) and IgG antibodies, with confirmation by a 50% focal reduction neutralization test (FRNT50)...
November 20, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29165569/preferential-usage-of-specific-immunoglobulin-heavy-chain-variable-region-genes-with-unmutated-profile-and-advanced-stage-at-presentation-are-common-features-in-patients-with-chronic-lymphocytic-leukemia-from-senegal
#10
Teresa Amato, Abibatou Sall, Tandakha NDiaye Dièye, Alessandro Gozzetti, Michele Iacono, Maria Raffaella Ambrosio, Massimo Granai, Serena Somma, Saliou Diop, Awa Oumar Touré, Evelyne May, Charles Henry Gattiollat, Joëlle Wiels, Yonis Ahmed, Martine Raphael, Lorenzo Leoncini, Cristiana Bellan, Pier Paolo Piccaluga
Objectives: Chronic lymphocytic leukemia (CLL) is the most common type of leukemia in Western populations, being rarer in Asian and African people. It has been suggested that patients with CLL from Africa might have a more aggressive disease compared with white patients. In this study, we aimed to identify genetic factors that may account for this difference. Methods: We analyzed immunoglobulin heavy chain (IGH) genes' mutational status by performing next-generation sequencing in 25 Senegalese and 50 Italian patients with CLL...
November 20, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29164966/minimal-residual-disease-detected-by-immunoglobulin-sequencing-predicts-cll-relapse-more-effectively-than-flow-cytometry
#11
Andrew Aw, Haesook T Kim, Stacey M Fernandes, Kevin Hoang, Siddha Kasar, Malek Faham, Jennifer R Brown
No abstract text is available yet for this article.
November 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29164823/immunoglobulin-g-structure-and-functional-implications-of-different-subclass-modifications-in-initiation-and-resolution-of-allergy
#12
REVIEW
Timothy H Scott-Taylor, Stefan-Claudiu Axinia, Sumeya Amin, Ruth Pettengell
IgE and not IgG is usually associated with allergy. IgE lodged on mast cells in skin or gut and basophils in the blood allows for the prolonged duration of allergy through the persistent expression of high affinity IgE receptors. However, many allergic reactions are not dependent on IgE and are generated in the absence of allergen specific and even total IgE. Instead, IgG plasma cells are involved in induction of, and for much of the pathogenesis of, allergic diseases. The pattern of IgG producing plasma cells in atopic children and the tendency for direct or further class switching to IgE are the principle factors responsible for long-lasting sensitization of mast cells in allergic children...
November 21, 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/29164608/the-absolute-percent-deviation-of-ighv-mutation-rather-than-a-98-cut-off-predicts-survival-of-chronic-lymphocytic-leukaemia-patients-treated-with-fludarabine-cyclophosphamide-and-rituximab
#13
Preetesh Jain, Graciela M Nogueras González, Rashmi Kanagal-Shamanna, Uri Rozovski, Nawid Sarwari, Constantine Tam, William G Wierda, Philip A Thompson, Nitin Jain, Rajyalakshmi Luthra, Andres Quesada, Gabriela Sanchez-Petitto, Alessandra Ferrajoli, Jan Burger, Hagop Kantarjian, Jorge Cortes, Susan O'Brien, Michael J Keating, Zeev Estrov
The degree of somatic hypermutation, determined as percent deviation of immunoglobulin heavy chain gene variable region sequence from the germline (IGHV%), is an important prognostic factor in chronic lymphocytic leukaemia (CLL). Currently, a cut-off of 2% deviation or 98% sequence identity to germline in IGHV sequence is routinely used to dichotomize CLL patients into mutated and unmutated groups. Because dissimilar IGHV% cut-offs of 1-5% were identified in different studies, we wondered whether no cut-off should be applied and IGHV% treated as a continuous variable...
November 21, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29164145/aspergillus-fumigatus-specific-immunoglobulin-levels-in-balf-of-cf-patients
#14
Mia Goña-Höpler, Birgit Pfaller, Jonathan Argeny, Stefan Kanolzer, Saskia Gruber, Klara Schmidthaler, Sabine Renner, Edith Nachbaur, Petra Fucik, Andreas G Glaser, Markus Debiasi, Zsolt Szépfalusi, Reto Crameri, Claudio Rhyner, Thomas Eiwegger
IgE responses to Aspergillus fumigatus in cystic fibrosis lungs http://ow.ly/XXwv30furqs.
October 2017: ERJ Open Research
https://www.readbyqxmd.com/read/29164089/pulmonary-hypoplasia-caused-by-fetal-ascites-in-congenital-cytomegalovirus-infection-despite-fetal-therapy
#15
Kazumichi Fujioka, Ichiro Morioka, Kosuke Nishida, Mayumi Morizane, Kenji Tanimura, Masashi Deguchi, Kazumoto Iijima, Hideto Yamada
We report two cases of pulmonary hypoplasia due to fetal ascites in symptomatic congenital cytomegalovirus (CMV) infections despite fetal therapy. The patients died soon after birth. The pathogenesis of pulmonary hypoplasia in our cases might be thoracic compression due to massive fetal ascites as a result of liver insufficiency. Despite aggressive fetal treatment, including multiple immunoglobulin administration, which was supposed to diminish the pathogenic effects of CMV either by neutralization or immunomodulatory effects, the fetal ascites was uncontrollable...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29164005/study-of-systemic-disease-igg4-usefulness-of-2-18f-fluoro-2-deoxy-d-glucose-positron-emission-tomography-computed-tomography-for-staging-selection-of-biopsy-site-evaluation-of-treatment-response-and-follow-up
#16
Guillermo Martinez-Pimienta, Edel Noriega-Álvarez, Marc Simó-Perdigó
Immunoglobulin G4-related systemic disease (IgG4-RSD) is a recently emerging disorder characterized by swelling lesions with storiform fibrosis and lymphoplasmacytic infiltration enriched with IgG4-positive plasma cells. IgG4-RSD has been found in multiple organs/tissues. The diagnosis requires the integration of clinical, serological, imaging, histopathological, and immunohistological features. The 2-[18F]-fluoro-2-deoxy-D-glucose-positron emission tomography/computed tomography (18F-FDG PET/CT) enables the acquisition of whole-body images and provides functional information about disease activity...
September 2017: European Journal of Rheumatology
https://www.readbyqxmd.com/read/29163507/impact-of-chronic-viral-infection-on-t-cell-dependent-humoral-immune-response
#17
REVIEW
Stéphane Rodriguez, Mikaël Roussel, Karin Tarte, Patricia Amé-Thomas
During the last decades, considerable efforts have been done to decipher mechanisms supported by microorganisms or viruses involved in the development, differentiation, and function of immune cells. Pathogens and their associated secretome as well as the continuous inflammation observed in chronic infection are shaping both innate and adaptive immunity. Secondary lymphoid organs are functional structures ensuring the mounting of adaptive immune response against microorganisms and viruses. Inside these organs, germinal centers (GCs) are the specialized sites where mature B-cell differentiation occurs leading to the release of high-affinity immunoglobulin (Ig)-secreting cells...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163494/reproducibility-and-reuse-of-adaptive-immune-receptor-repertoire-data
#18
Felix Breden, Eline T Luning Prak, Bjoern Peters, Florian Rubelt, Chaim A Schramm, Christian E Busse, Jason A Vander Heiden, Scott Christley, Syed Ahmad Chan Bukhari, Adrian Thorogood, Frederick A Matsen Iv, Yariv Wine, Uri Laserson, David Klatzmann, Daniel C Douek, Marie-Paule Lefranc, Andrew M Collins, Tania Bubela, Steven H Kleinstein, Corey T Watson, Lindsay G Cowell, Jamie K Scott, Thomas B Kepler
High-throughput sequencing (HTS) of immunoglobulin (B-cell receptor, antibody) and T-cell receptor repertoires has increased dramatically since the technique was introduced in 2009 (1-3). This experimental approach explores the maturation of the adaptive immune system and its response to antigens, pathogens, and disease conditions in exquisite detail. It holds significant promise for diagnostic and therapy-guiding applications. New technology often spreads rapidly, sometimes more rapidly than the understanding of how to make the products of that technology reliable, reproducible, or usable by others...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163486/structure-and-diversity-of-the-rhesus-macaque-immunoglobulin-loci-through-multiple-de-novo-genome-assemblies
#19
Akshaya Ramesh, Sam Darko, Axin Hua, Glenn Overman, Amy Ransier, Joseph R Francica, Ashley Trama, Georgia D Tomaras, Barton F Haynes, Daniel C Douek, Thomas B Kepler
The rhesus macaque is a critically important animal model in biomedical research, most recently playing a key role in the development of vaccines against human immunodeficiency virus-1. Nevertheless, the immunoglobulin (Ig) loci of macaques are as yet incompletely determined and our understanding of differences between human and macaque humoral immunity remains deficient. We completed a high-coverage, high-quality whole genome sequencing and assembly project with a single rhesus macaque of Indian origin, and partial genome assemblies using genomic molecular targeting of the Ig loci in nine other rhesus macaques of Indian origin...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163471/innate-b-1-b-cells-are-not-enriched-in-red-blood-cell-autoimmune-mice-importance-of-b-cell-receptor-transgenic-selection
#20
Amanda L Richards, Heather L Howie, Linda M Kapp, Jeanne E Hendrickson, James C Zimring, Krystalyn E Hudson
Autoimmune hemolytic anemia (AIHA) results from breakdown of humoral tolerance to RBC antigens. Past analyses of B-cell receptor transgenic (BCR-Tg) mice that recognize RBC autoantigens led to a paradigm in which autoreactive conventional B-2 B cells are deleted whereas extramedullary B-1 B cells escape deletion due to lack of exposure to RBCs. However, BCR-Tg mice utilized to shape the current paradigm were unable to undergo receptor editing or class-switching. Given the importance of receptor editing as mechanism to tolerize autoreactive B cells during central tolerance, we hypothesized that expansion of autoreactive B-1 B cells is a consequence of the inability of the autoreactive BCR to receptor edit...
2017: Frontiers in Immunology
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