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https://www.readbyqxmd.com/read/28230086/classification-of-idiopathic-interstitial-pneumonias-using-anti-myxovirus-resistance-protein-1-autoantibody
#1
Yoshimasa Hamano, Hiroshi Kida, Shoichi Ihara, Akihiro Murakami, Masahiro Yanagawa, Ken Ueda, Osamu Honda, Lokesh P Tripathi, Toru Arai, Masaki Hirose, Toshimitsu Hamasaki, Yukihiro Yano, Tetsuya Kimura, Yasuhiro Kato, Hyota Takamatsu, Tomoyuki Otsuka, Toshiyuki Minami, Haruhiko Hirata, Koji Inoue, Izumi Nagatomo, Yoshito Takeda, Masahide Mori, Hiroyoshi Nishikawa, Kenji Mizuguchi, Takashi Kijima, Masanori Kitaichi, Noriyuki Tomiyama, Yoshikazu Inoue, Atsushi Kumanogoh
Chronic fibrosing idiopathic interstitial pneumonia (IIP) can be divided into two main types: idiopathic pulmonary fibrosis (IPF), a steroid-resistant and progressive disease with a median survival of 2-3 years, and idiopathic non-specific interstitial pneumonia (INSIP), a steroid-sensitive and non-progressive autoimmune disease. Although the clinical courses of these two diseases differ, they may be difficult to distinguish at diagnosis. We performed a comprehensive analysis of serum autoantibodies from patients definitively diagnosed with IPF, INSIP, autoimmune pulmonary alveolar proteinosis, and sarcoidosis...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28229285/topics-on-vitamin-d-in-systemic-lupus-erythematosus-analysis-of-evidence-and-critical-literature-review
#2
António Marinho, Mariana Taveira, Carlos Vasconcelos
Systemic lupus erythematosus (SLE) is a systemic autoimmune disease with multiorgan inflammation, linked to the loss of immune tolerance to self-antigens and the production of a diversity of autoantibodies. The phenotype and progression of SLE have been linked to a combination of environmental, genetic, and hormonal factors. One such environmental factor is vitamin D, a vital hormone with well-established effects on mineral metabolism, skeletal health, and effects on cardiovascular system. The purpose of this article is to make the analysis of evidence and literature review of the pleomorphic effects of Vitamin D in SLE...
February 22, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28228834/anti-collapsing-response-mediating-protein-5-antibody-positive-paraneoplastic-perioptic-neuritis-without-typical-neurological-symptoms
#3
Nozomi Igarashi, Hiromasa Sawamura, Toshikatsu Kaburaki, Makoto Aihara
A 68-year-old male presented with blurred vision in both eyes. Ophthalmoscopy revealed bilateral prominent disc swelling and vitritis. No systematic neurological symptoms were observed. Magnetic resonance imaging revealed bilateral meningeal enhancement of the optic nerve. Small cell carcinoma was found, and antibodies against collapsing response-mediating protein-5 (CRMP-5) were detected in the serum. Ophthalmological manifestations disappeared during a decrease in tumour size with treatment for the malignancy...
February 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28228756/agonistic-anti-pdgf-receptor-autoantibodies-from-patients-with-systemic-sclerosis-impact-human-pulmonary-artery-smooth-muscle-cells-function-in-vitro
#4
Silvia Svegliati, Donatella Amico, Tatiana Spadoni, Colomba Fischetti, Doreen Finke, Gianluca Moroncini, Chiara Paolini, Cecilia Tonnini, Antonella Grieco, Marina Rovinelli, Armando Gabrielli
One of the earliest events in the pathogenesis of systemic sclerosis (SSc) is microvasculature damage with intimal hyperplasia and accumulation of cells expressing PDGF receptor. Stimulatory autoantibodies targeting PDGF receptor have been detected in SSc patients and demonstrated to induce fibrosis in vivo and convert in vitro normal fibroblasts into SSc-like cells. Since there is no evidence of the role of anti-PDGF receptor autoantibodies in the pathogenesis of SSc vascular lesions, we investigated the biologic effect of agonistic anti-PDGF receptor autoantibodies from SSc patients on human pulmonary artery smooth muscle cells and the signaling pathways involved...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28228619/a-case-of-anti-3-hydroxy-3-methylglutaryl-coenzyme-a-reductase-antibody-positive-paraneoplastic-necrotizing-myopathy-associated-with-advanced-gastric-cancer-that-responded-to-intravenous-immunoglobulin-therapy
#5
Tomohisa Yamaguchi, Akiko Matsunaga, Masamichi Ikawa, Norimichi Shirafuji, Ichizo Nishino, Tadanori Hamano
A 49-year-old woman presented with progressive muscle weakness of the limbs and dysphagia. Her past and family medical history were unremarkable and she did not take statins or any other medications. Laboratory tests showed that serum levels of creatine kinase were elevated (13,565 IU/l) and anti-3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR) antibodies were detected in the serum. Other autoantibodies to the nuclear (ANA), RNP, aminoacyl-tRNA synthetases (ARS), and signal recognition particle (SRP) were negative...
February 22, 2017: Rinshō Shinkeigaku, Clinical Neurology
https://www.readbyqxmd.com/read/28228602/a-divergent-population-of-autoantigen-responsive-cd4-t-cells-in-infants-prior-to-%C3%AE-cell-autoimmunity
#6
Anne-Kristin Heninger, Anne Eugster, Denise Kuehn, Florian Buettner, Matthias Kuhn, Annett Lindner, Sevina Dietz, Sibille Jergens, Carmen Wilhelm, Andreas Beyerlein, Anette-G Ziegler, Ezio Bonifacio
Autoimmune diabetes is marked by sensitization to β cell self-antigens in childhood. We longitudinally followed at-risk children from infancy and performed single-cell gene expression in β cell antigen-responsive CD4(+) T cells through pre- and established autoimmune phases. A striking divergence in the gene signature of β cell antigen-responsive naïve CD4(+) T cells from children who developed β cell autoimmunity was found in infancy, well before the appearance of β cell antigen-specific memory T cells or autoantibodies...
February 22, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28228278/immunopathogenesis-of-rheumatoid-arthritis
#7
REVIEW
Gary S Firestein, Iain B McInnes
Rheumatoid arthritis (RA) is the most common inflammatory arthropathy. The majority of evidence, derived from genetics, tissue analyses, models, and clinical studies, points to an immune-mediated etiology associated with stromal tissue dysregulation that together propogate chronic inflammation and articular destruction. A pre-RA phase lasting months to years may be characterized by the presence of circulating autoantibodies, increasing concentration and range of inflammatory cytokines and chemokines, and altered metabolism...
February 21, 2017: Immunity
https://www.readbyqxmd.com/read/28226181/use-of-self-collected-capillary-blood-samples-for-islet-autoantibody-screening-in-relatives-a-feasibility-and-acceptability-study
#8
Y Liu, L E Rafkin, D Matheson, C Henderson, D Boulware, R E J Besser, C Ferrara, L Yu, A K Steck, P J Bingley
AIMS: To evaluate the feasibility of using self-collected capillary blood samples for islet autoantibody testing to identify risk in relatives of people with Type 1 diabetes. METHODS: Participants were recruited via the observational TrialNet Pathway to Prevention study, which screens and monitors relatives of people with Type 1 diabetes for islet autoantibodies. Relatives were sent kits for capillary blood collection, with written instructions, an online instructional video link and a questionnaire...
February 22, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/28225995/clinical-impact-of-thyroglobulin-tg-and-tg-autoantibody-tgab-measurements-in-needle-washouts-of-neck-lymph-node-biopsies-in-the-management-of-patients-with-papillary-thyroid-carcinoma
#9
M Cecilia Martins-Costa, Rui M B Maciel, Teresa S Kasamatsu, Claudia C D Nakabashi, Cleber P Camacho, Felipe Crispim, Elza S Ikejiri, M Conceição O Mamone, Danielle M Andreoni, Rosa Paula M Biscolla
Objectives: The presence of thyroglobulin (Tg) in needle washouts of fine needle aspiration biopsy (Tg-FNAB) in neck lymph nodes (LNs) suspected of metastasis has become a cornerstone in the follow-up of patients with papillary thyroid carcinoma (PTC). However, there are limited data regarding the measurement of anti-Tg antibodies in these washouts (TgAb-FNAB), and it is not clear whether these antibodies interfere with the assessment of Tg-FNAB or whether there are other factors that would more consistently justify the finding of low Tg-FNAB in metastatic LNs...
February 13, 2017: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28225960/skin-symptoms-as-diagnostic-clue-for-autoinflammatory-diseases
#10
Alvaro Moreira, Barbara Torres, Juliano Peruzzo, Alberto Mota, Kilian Eyerich, Johannes Ring
Autoinflammatory disorders are immune-mediated diseases with increased production of inflammatory cytokines and absence of detectable autoantibodies. They course with recurrent episodes of systemic inflammation and fever is the most common symptom. Cutaneous manifestations are prevalent and important to diagnosis and early treatment of the syndromes. The purpose of this review is to emphasize to dermatologists the skin symptoms present in these syndromes in order to provide their early diagnosis.
January 2017: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/28225753/complement-drives-glucosylceramide-accumulation-and-tissue-inflammation-in-gaucher-disease
#11
Manoj K Pandey, Thomas A Burrow, Reena Rani, Lisa J Martin, David Witte, Kenneth D Setchell, Mary A Mckay, Albert F Magnusen, Wujuan Zhang, Benjamin Liou, Jörg Köhl, Gregory A Grabowski
Gaucher disease is caused by mutations in GBA1, which encodes the lysosomal enzyme glucocerebrosidase (GCase). GBA1 mutations drive extensive accumulation of glucosylceramide (GC) in multiple innate and adaptive immune cells in the spleen, liver, lung and bone marrow, often leading to chronic inflammation. The mechanisms that connect excess GC to tissue inflammation remain unknown. Here we show that activation of complement C5a and C5a receptor 1 (C5aR1) controls GC accumulation and the inflammatory response in experimental and clinical Gaucher disease...
February 22, 2017: Nature
https://www.readbyqxmd.com/read/28224137/hmgb1-anti-hmgb1-antibodies-define-a-molecular-signature-of-early-stages-of-hiv-associated-neurocognitive-isorders-hand
#12
Marie-Lise Gougeon, Béatrice Poirier-Beaudouin, Jacques Durant, Christine Lebrun-Frenay, Héla Saïdi, Valérie Seffer, Michel Ticchioni, Stephane Chanalet, Helene Carsenti, Alexandra Harvey-Langton, Muriel Laffon, Jacqueline Cottalorda, Christian Pradier, Pierre Dellamonica, Matteo Vassallo
BACKGROUND: HIV-associated neurocognitive disorders (HAND) persist in the post-HAART era, characterized by asymptomatic neurocognitive impairment (ANI) and mild neurocognitive disorders (MND). High mobility group box 1 (HMGB1) is a non-histone chromosomal protein widely expressed in the nucleus of all eukaryotic cells, including brain cells, which acts as a potent proinflammatory cytokine when actively secreted from immune cells. Recent reports suggested that HMGB1 acts on microglial cells to promote neuroinflammation...
February 2017: Heliyon
https://www.readbyqxmd.com/read/28223071/therapeutic-antibody-targeting-of-indoleamine-2-3-dioxygenase-ido2-inhibits-autoimmune-arthritis
#13
Lauren M F Merlo, Samantha Grabler, James B DuHadaway, Elizabeth Pigott, Kaylend Manley, George C Prendergast, Lisa D Laury-Kleintop, Laura Mandik-Nayak
Rheumatoid arthritis (RA) is a debilitating inflammatory autoimmune disease with no known cure. Recently, we identified the immunomodulatory enzyme indoleamine-2,3-dioxygenase 2 (IDO2) as an essential mediator of autoreactive B and T cell responses driving RA. However, therapeutically targeting IDO2 has been challenging given the lack of small molecules that specifically inhibit IDO2 without also affecting the closely related IDO1. In this study, we develop a novel monoclonal antibody (mAb)-based approach to therapeutically target IDO2...
February 18, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28222195/autoantibodies-against-mono-and-tri-methylated-lysine-display-similar-but-also-distinctive-characteristics
#14
Zhiqiang Wang, Younan Ma, Fan Liu, Linjie Chen, Ruitong Gao, Wei Zhang
Autoantibodies can be either harmful or beneficial to the body. The beneficial autoantibodies play important roles in immunosurveillance, clearance of body waste and maintenance of immune homeostasis. Despite their importance, however, people's knowledge on the protective autoantibodies is still very limited. In the current study, we examined two autoantibodies that recognized epitopes with only one amino acid. One was against mono-methylated lysine (Kme) and the other was against tri-methylated lysine (Kme3)...
2017: PloS One
https://www.readbyqxmd.com/read/28222023/factors-associated-with-increased-irisin-levels-in-the-type-1-diabetes-mellitus
#15
I Ates, M F Arikan, K Erdogan, M Kaplan, M Yuksel, C Topcuoglu, N Yilmaz, S Guler
OBJECTIVE: The aim of the present study was to determine the irisin levels in patients with the type 1 diabetes mellitus (T1DM) and to examine the relation of irisin levels with the inflammation and autoimmunity. METHODS: This study included 35 cases diagnosed with T1DM and 36 healthy volunteers. Antiglutamic acid decarboxylase (anti-GAD), islet cell antibody (ICA), and insulin autoantibody levels were measured in patients at the time when they were included into the study and recorded from the patient files...
January 1, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/28220235/successful-discontinuation-of-eculizumab-under-immunosuppressive-therapy-in-deap-hus
#16
Agnes Hackl, Rasmus Ehren, Michael Kirschfink, Peter F Zipfel, Bodo B Beck, Lutz T Weber, Sandra Habbig
BACKGROUND: Deficiency of complement factor H-related plasma proteins and complement factor H autoantibody-positive hemolytic uremic syndrome (DEAP-HUS), which is characterized by the deficiency of complement-factor H-related (CFHR) plasma proteins and the subsequent formation of autoantibodies against complement factor H (CFH), has been reported to have an adverse outcome in one third of patients. Therapy options include prompt removal of antibodies by plasma exchange and immunosuppressive therapy...
February 20, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28220082/synaptic-and-neuronal-autoantibody-associated-psychiatric-syndromes-controversies-and-hypotheses
#17
Adam Al-Diwani, Thomas A Pollak, Alexander E Langford, Belinda R Lennox
Autoimmune encephalitis (AE) mediated by antibodies against synaptic and neuronal surface targets frequently presents with a psychiatric syndrome. In these patients, removal of autoantibodies treats the disease and outcomes are closely linked to early intervention. The discovery of these autoantibodies in isolated psychiatric syndromes has raised the possibility that these patients may derive similar benefits from immunotherapy, a potentially transformational approach to the treatment of mental illness. Although open-label case series suggest impressive therapeutic outcomes, the pathological relevance of these autoantibodies outside of canonical presentations is debated...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28219962/psychological-manifestations-of-celiac-disease-autoimmunity-in-young-children
#18
Laura B Smith, Kristian F Lynch, Kalle Kurppa, Sibylle Koletzko, Jeffrey Krischer, Edwin Liu, Suzanne Bennett Johnson, Daniel Agardh
BACKGROUND AND OBJECTIVES: Psychological symptoms can be associated with celiac disease; however, this association has not been studied prospectively in a pediatric cohort. We examined mother report of psychological functioning in children persistently positive for tissue transglutaminase autoantibodies (tTGA), defined as celiac disease autoimmunity (CDA), compared with children without CDA in a screening population of genetically at-risk children. We also investigated differences in psychological symptoms based on mothers' awareness of their child's CDA status...
February 20, 2017: Pediatrics
https://www.readbyqxmd.com/read/28219888/cd74-deficiency-mitigates-systemic-lupus-erythematosus-like-autoimmunity-and-pathological-findings-in-mice
#19
Yi Zhou, Huimei Chen, Li Liu, Xueqing Yu, Galina K Sukhova, Min Yang, Lijun Zhang, Vasileios C Kyttaris, George C Tsokos, Isaac E Stillman, Takaharu Ichimura, Joseph V Bonventre, Peter Libby, Guo-Ping Shi
CD74 mediates MHC class-II antigenic peptide loading and presentation and plays an important role in the pathogenesis of autoimmune diseases, including systemic lupus erythematosus. C57BL/6 Fas(lpr) mice that develop spontaneous lupus-like autoimmunity and pathology showed elevated CD74 expression in the inflammatory cell infiltrates and the adjacent tubular epithelial cells (TECs) in kidneys affected by lupus nephritis but negligible levels in kidneys from age-matched wild-type mice. The inflammatory cytokine IFN-γ or IL-6 induced CD74 expression in kidney TECs in vitro...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28219887/disruption-of-pathogenic-cellular-networks-by-il-21-blockade-leads-to-disease-amelioration-in-murine-lupus
#20
Jin-Young Choi, Abhinav Seth, Michael Kashgarian, Sonia Terrillon, Emma Fung, Lili Huang, Li Chun Wang, Joe Craft
Systemic lupus erythematosus (lupus) is characterized by autoantibody-mediated organ injury. Follicular Th (Tfh) cells orchestrate physiological germinal center (GC) B cell responses, whereas in lupus they promote aberrant GC responses with autoreactive memory B cell development and plasma cell-derived autoantibody production. IL-21, a Tfh cell-derived cytokine, provides instructional cues for GC B cell maturation, with disruption of IL-21 signaling representing a potential therapeutic strategy for autoantibody-driven diseases such as systemic lupus erythematosus...
February 20, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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