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Immunoglobulins

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https://www.readbyqxmd.com/read/28527239/the-structure-of-a-lair1-containing-human-antibody-reveals-a-novel-mechanism-of-antigen-recognition
#1
Fu-Lien Hsieh, Matthew K Higgins
Antibodies are critical components of the human adaptive immune system, providing versatile scaffolds to display diverse antigen binding surfaces. Nevertheless, most antibodies have similar architectures, with the variable immunoglobulin domains of the heavy and light chain each providing three hypervariable loops, which are varied to generate diversity. The recent identification of a novel class of antibody in humans from malaria endemic regions of Africa was therefore surprising as one hypervariable loop contains the entire collagen-binding domain of human LAIR1...
May 20, 2017: ELife
https://www.readbyqxmd.com/read/28526805/evaluation-of-crescent-formation-as-a-predictive-marker-in-immunoglobulin-a-nephropathy-a-systematic-review-and-meta-analysis
#2
Xue Shao, Bingjue Li, Luxi Cao, Ludan Liang, Jingjuan Yang, Yucheng Wang, Shi Feng, Cuili Wang, Chunhua Weng, Xiujin Shen, Hong Jiang, Jianghua Chen
The 2009 Oxford Classification of immunoglobulin A (IgA) nephropathy (IgAN) identifies four histological features as predictors of renal prognosis: mesangial hypercellularity (M), endocapillary hypercellularity (E), segmental glomerulosclerosis (S), and tubular atrophy/interstitial fibrosis (T). However, the clinical and prognostic significance of crescent formation still remains controversial. Therefore, we performed a meta-analysis to evaluate the association between crescents and kidney outcome in IgAN. A total of 20 studies published from January 2009 to July 2016 involving 5,285 patients were included after systematic searches of PubMed and EMBASE databases...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28526622/9-cis-retinoic-acid-modulates-the-type-i-allergic-immune-response
#3
Guido Heine, Tim Hollstein, Sandra Treptow, Andreas Radbruch, Margitta Worm
BACKGROUND: Vitamin A is a potent regulator of adaptive immunity. The impact of the endogenous metabolite 9-cis retinoic acid (9cRA) on allergic sensitization is unknown. OBJECTIVE: To investigate whether and to what extent 9cRA modulates the humoral immune response. METHODS: BALB/c mice were sensitized and challenged with ovalbumin (OVA). 9cRA was applied repeatedly together with the antigen. Immunoglobulin production and cellular analysis were performed by ELISA, ELISPOTs and flow-cytometry...
May 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28526535/tnf-%C3%AE-is-superior-to-conventional-inflammatory-mediators-in-forecasting-ivig-nonresponse-and-coronary-arteritis-in-chinese-children-with-kawasaki-disease
#4
Peng Hu, Guang Mei Jiang, Yue Wu, Bao Yu Huang, Si Yan Liu, Dong Dong Zhang, Yao Xu, Yang Fang Wu, Xun Xia, Wei Wei, Bo Hu
BACKGROUND: Tumor necrosis factor (TNF) -α is of inflammatory cytokines produced chiefly by activated monocyte/macrophages, and has been implicated in the pathogenesis of Kawasaki disease (KD). We elucidated the relationship of plasma TNF-α with conventional inflammatory mediators, clinical classification, intravenous immunoglobulin (IVIG) response and coronary arteritis in the course of KD. METHODS: Seventy Chinese children with KD were enrolled and divided into 6 subgroups, including complete KD, incomplete KD, IVIG-responsive KD, IVIG-nonresponsive KD, coronary artery (CA) -noninvolvement KD and CA-involvement KD...
May 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28525829/epidemiology-and-management-of-primary-immune-thrombocytopenia-a-nationwide-population-based-study-in-korea
#5
Ji Yun Lee, Ju-Hyun Lee, Heeyoung Lee, Beodeul Kang, Ji-Won Kim, Se Hyun Kim, Jeong-Ok Lee, Jin Won Kim, Yu Jung Kim, Keun-Wook Lee, Jee Hyun Kim, Hyoung Soo Choi, Jong Seok Lee, Soo-Mee Bang
INTRODUCTION: The epidemiology of immune thrombocytopenia (ITP) is not well characterized in an Asian population. MATERIALS AND METHODS: From July 2010 to June 2014, ITP patients were identified using the Korean Health Insurance Review and Assessment Service database. RESULTS: The overall incidence rate of ITP was 5.3 per 100,000 person-years (95% CI: 5.1-5.5). The overall incidence rate ratios of children under 15years old to adults and females to males were 3...
May 11, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28525589/bone-marrow-involvement-in-systemic-lupus-erythematosus
#6
Emilie Chalayer, Nathalie Costedoat-Chalumeau, Odile Beyne-Rauzy, Jacques Ninet, Stephane Durupt, Jacques Tebib, Bouchra Asli, Olivier Lambotte, Martine Ffrench, Christian Vasselon, Pascal Cathébras
BACKGROUND: Besides peripheral cytopenias, bone marrow abnormalities, such as fibrosis, pure red cell aplasia, and aplastic anemia have been reported in patients with systemic lupus erythematosus (SLE), suggesting that bone marrow may be a target organ in SLE. Our objective was to describe this bone marrow involvement. METHODS: This registry is a nationwide retrospective study. Centers provided data concerning medical history, SLE manifestations, type of hematologic disorder, treatments and outcome...
May 19, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28525399/allergen-immunotherapy-for-the-treatment-of-respiratory-allergies-in-the-elderly
#7
Gyu-Young Hur, Ji-Ho Lee, Hae-Sim Park
PURPOSE OF REVIEW: Respiratory allergies, including asthma and allergic rhinitis can also occur in the elderly. Allergen immunotherapy for allergic diseases is the only disease-modifying treatment for patients with allergies available thus far. Here, we review current evidence supporting the use of allergen immunotherapy in the elderly and discuss its efficacy and utility for the treatment of respiratory allergic diseases in this setting. RECENT FINDINGS: Subcutaneous and/or sublingual immunotherapy are effective therapeutic options in not only young but also older patients...
May 17, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28525303/low-level-laser-therapy-after-wisdom-teeth-surgery-evaluation-of-immunologic-markers-secretory-immunoglobulin-a-and-lysozyme-levels-and-thermographic-examination-placebo-controlled-study
#8
Tatjana Dostalova, Veronika Kroulikova, Stepan Podzimek, Helena Jelinková
OBJECTIVE: The goal of this investigation is to analyze the effect of therapeutic low-level laser therapy (LLLT) to have a possibility to check pain and inflammation connected with surgical removal of impacted lower third molars in general anesthesia or even phobia [not accompanied by pain or fear of dental treatment, using immunologic markers-secretory immunoglobulin A (sIgA) and lysozyme]. The healing process was also monitored by infrared thermography. BACKGROUND DATA: LLLT can accelerate the proliferation phase of healing and decrease the inflammatory reaction, but the effect is not really clear...
May 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28524218/-autoimmune-pathology-in-neuropaediatrics-what-aspects-have-really-undergone-a-change
#9
V Cantarin-Extremera
Autoimmune neurological diseases are an important group of pathologies in neuropaediatrics. The central nervous system was considered to be an immunologically privileged organ, as it protects itself from the surroundings by means of the blood-brain barrier. In recent years, however, reports have been published of a growing number of disorders produced by antibodies that react against neuronal or glial proteins and give rise to a wide variety of clinical conditions (epilepsy, encephalopathy, movement disorders, etc...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524083/idiopathic-inflammatory-myopathies-a-review-of-the-classification-and-impact-of-pathogenesis
#10
REVIEW
Dana E Mandel, Charles J Malemud, Ali D Askari
Idiopathic inflammatory myopathies (IIMs) are a group of autoimmune muscle diseases with significant morbidity and mortality. This review details and updates the pathogenesis and emerging importance of myositis-specific antibodies in the development of IIMs. An increase in the understanding of how these myositis-specific antibodies play a role in IIMs has led to the further categorization of IIMs from the traditional polymyositis versus dermatomyositis, to additional subcategories of IIMs such as necrotizing autoimmune myositis (NAM)...
May 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28523957/clinical-case-idelalisib-induced-immunoglobulin-flare
#11
Jan Novak, Martin Havrda, Lubica Gaherova, Jan Spicka, Tomas Kozak
IgM flare is a transient, treatment-induced, increase of monoclonal IgM levels in lymphoplasmacytic lymphoma/Waldenström macroglobulinemia (LPL/WM) patients. Until recently this phenomenon was observed in patients treated with Cladribine and Rituximab. Here we report a case of a heavily pretreated chronic lymphocytic leukemia patient with an atypically high immunoglobulin production who developed clinically significant immunoglobulin flare following Idelalisib treatment.
May 19, 2017: Immunopharmacology and Immunotoxicology
https://www.readbyqxmd.com/read/28523920/expression-of-bovine-rotavirus-vp8-and-preparation-of-igy-antibodies-against-recombinant-vp8
#12
H S Kim, B Lee, S Y Han, Y T Jung
Group A rotavirus is the leading cause of acute gastroenteritis in cattle and swine. Although, vaccination against this virus is an effective strategy for prevention, additional strategy to control disease is necessary. Egg yolk immunoglobulin (IgY)-based passive immunization could be a better option in preventing this disease. Bovine rotavirus (BRV) is group A rotavirus and possesses a genome of 11 segments of double-stranded RNA. The outer layer of capsid is composed of two proteins (VP7 and VP4), which induce virus neutralizing antibodies...
2017: Acta Virologica
https://www.readbyqxmd.com/read/28523429/kir-lilrb-and-their-ligands-genes-as-potential-biomarkers-in-recurrent-implantation-failure
#13
REVIEW
Izabela Nowak, Karolina Wilczyńska, Jacek R Wilczyński, Andrzej Malinowski, Paweł Radwan, Michał Radwan, Piotr Kuśnierczyk
Reproductive failure in humans is a very important social and economic problem, because nowadays women decide to conceive later in life and delay motherhood. Unfortunately, with increasing age they have less chance for natural fertilization and maintenance of pregnancy. Many of them need assisted reproductive technology. Approximately 10% of women after in vitro fertilization-embryo transfers experience recurrent implantation failure (RIF). Multiple factors may contribute to RIF, including oocyte and sperm quality, parental chromosomal anomalies, genetic or metabolic abnormalities of the embryo, poor uterine receptivity, immunological disturbances in the implantation site, and some gynecologic pathologies such as endometriosis, uterine fibroids, hydrosalpinx and endometrial polyps...
May 18, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28522988/multiple-sites-ultrasonography-of-peripheral-nerves-in-differentiating-charcot-marie-tooth-type-1a-from-chronic-inflammatory-demyelinating-polyradiculoneuropathy
#14
Jingwen Niu, Liying Cui, Mingsheng Liu
INTRODUCTION: Multiple sites measurement of cross-sectional areas (CSA) by ultrasound was performed to differentiate Charcot-Marie-Tooth type 1A (CMT1A) and chronic inflammatory demyelinating polyradiculoneuropathy (CIDP). METHODS: Nine patients with CMT1A, 28 patients with CIDP, and 14 healthy controls (HC) were recruited prospectively. Consecutive ultrasonography scanning was performed from wrist to axilla on median and ulnar nerves. CSAs were measured at 10 predetermined sites of each nerve...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28522957/crohn-s-disease-and-smoldering-multiple-myeloma-a-case-report-and-literature-review
#15
So Young Park, Jae Min Kim, Hyun Joon Kang, Minje Kim, Jae Joon Han, Chi Hoon Maeng, Sun Kyung Baek, Hwi-Joong Yoon, Si-Young Kim, Hyo Jong Kim
Crohn's disease (CD) is a chronic inflammatory bowel disease (IBD) that presents with abdominal pain, weight loss, and diarrhea. Although the etiology has not been fully elucidated, both environmental and genetic causes are known to be involved. In chronic inflammatory conditions such as IBD, B lymphocytes are chronically stimulated, and they induce monoclonal expansion of plasma cells, sometimes resulting in monoclonal gammopathy of undetermined significance. Immunomodulators that are commonly used to control inflammation, such as tumor necrosis factor-α (TNF-α) blockers could increase the possibility of hematologic malignancy...
April 2017: Intestinal Research
https://www.readbyqxmd.com/read/28522882/monoclonal-suncus-antibodies-generation-of-fusion-partners-to-produce-suncus-suncus-hybridomas
#16
Yoshikazu Sado, Satoko Inoue, Yasuko Tomono, Makoto Matsuyama, Masaki Fukushima, Toshitaka Oohashi, Takamichi Jogahara, Sen-Ichi Oda
We used suncus (Suncus murinus; house musk shrew) to generate partner cells for cell fusion to produce suncus monoclonal antibodies. Suncus are insectivores that are genetically distant to rodents, and recognize antigens and epitopes that are not immunogenic in mice and rats, which are the animals most commonly used in basic life science research and from which monoclonal antibodies are usually produced. To date, monoclonal antibodies from suncus have not been generated due to the lack of a plasmacytoma fusion partner...
April 27, 2017: Acta Histochemica et Cytochemica
https://www.readbyqxmd.com/read/28522451/ada2-deficiency-dada2-as-an-unrecognised-cause-of-early-onset-polyarteritis-nodosa-and-stroke-a-multicentre-national-study
#17
Roberta Caorsi, Federica Penco, Alice Grossi, Antonella Insalaco, Alessia Omenetti, Maria Alessio, Giovanni Conti, Federico Marchetti, Paolo Picco, Alberto Tommasini, Silvana Martino, Clara Malattia, Romina Gallizi, Rosa Anna Podda, Annalisa Salis, Fernanda Falcini, Francesca Schena, Francesca Garbarino, Alessia Morreale, Manuela Pardeo, Claudia Ventrici, Chiara Passarelli, Qing Zhou, Mariasavina Severino, Carlo Gandolfo, Gianluca Damonte, Alberto Martini, Angelo Ravelli, Ivona Aksentijevich, Isabella Ceccherini, Marco Gattorno
OBJECTIVES: To analyse the prevalence of CECR1 mutations in patients diagnosed with early onset livedo reticularis and/or haemorrhagic/ischaemic strokes in the context of inflammation or polyarteritis nodosa (PAN). Forty-eight patients from 43 families were included in the study. METHODS: Direct sequencing of CECR1 was performed by Sanger analysis. Adenosine deaminase 2 (ADA2) enzymatic activity was analysed in monocyte isolated from patients and healthy controls incubated with adenosine and with or without an ADA1 inhibitor...
May 18, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28522011/vaccination-with-a-live-attenuated-acinetobacter-baumannii-deficient-in-thioredoxin-provides-protection-against-systemic-acinetobacter-infection
#18
Sarah Ainsworth, Patrick M Ketter, Jieh-Juen Yu, Rose C Grimm, Holly C May, Andrew P Cap, James P Chambers, M Neal Guentzel, Bernard P Arulanandam
Multi-drug resistant Acinetobacter baumannii (MDR-Ab), an opportunistic pathogen associated with nosocomial and combat related infections, has a high mortality due to its virulence and limited treatment options. Deletion of the thioredoxin gene (TrxA) from a clinical isolate of MDR-Ab resulted in a 100-fold increase in 50% lethal dose (LD50) in a systemic challenge murine model. Thus, we investigated the potential use of this attenuated strain as a live vaccine against MDR-Ab. Mice were vaccinated by subcutaneous (s...
May 15, 2017: Vaccine
https://www.readbyqxmd.com/read/28521808/b-cell-repopulation-kinetics-after-rituximab-treatment-in-anca-associated-vasculitides-compared-to-rheumatoid-arthritis-and-connective-tissue-diseases-a-longitudinal-observational-study-on-120-patients
#19
Jens Thiel, Marta Rizzi, Marie Engesser, Ann-Kathrin Dufner, Arianna Troilo, Raquel Lorenzetti, Reinhard E Voll, Nils Venhoff
BACKGROUND: B cell depletion with rituximab (RTX) is approved for treatment of rheumatoid arthritis (RA) and ANCA-associated vasculitides (AAV). Recently, RTX has been shown to be effective in AAV maintenance therapy, but an optimal RTX treatment schedule is unknown and the time to B cell repopulation after RTX has not been studied. METHODS: Retrospective single-center analysis of B cell repopulation in patients with AAV, RA or connective tissue disease (CTD) treated with RTX...
May 18, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28521764/barrier-dysfunction-or-drainage-reduction-differentiating-causes-of-csf-protein-increase
#20
Mahdi Asgari, Diane A de Zélicourt, Vartan Kurtcuoglu
BACKGROUND: Cerebrospinal fluid (CSF) protein analysis is an important element in the diagnostic chain for various central nervous system (CNS) pathologies. Among multiple existing approaches to interpreting measured protein levels, the Reiber diagram is particularly robust with respect to physiologic inter-individual variability, as it uses multiple subject-specific anchoring values. Beyond reliable identification of abnormal protein levels, the Reiber diagram has the potential to elucidate their pathophysiologic origin...
May 18, 2017: Fluids and Barriers of the CNS
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