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Autoimmunity

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https://www.readbyqxmd.com/read/28647950/turner-syndrome-care-of-the-patient-birth-to-late-adolescence
#1
Denise Gruccio Paolucci, Vaneeta Bamba
Turner syndrome (TS) is a genetic condition occurring in females resulting from the loss of part or all of one of the X chromosomes. The two hallmark features of Turner syndrome include short stature and primary ovarian insufficiency. In addition, Turner syndrome can involve multiple healthcare issues including cardiac and renal anomalies, autoimmune disorders, hearing loss, ophthalmologic issues, bone anomalies, dermatologic issues and psychosocial and educational concerns. The presenting signs of Turner syndrome can vary markedly, leading to delayed or even missed diagnosis...
June 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28647912/chemiluminescent-immunoassay-technology-what-does-it-change-in-autoantibody-detection
#2
Luigi Cinquanta, Desré Ethel Fontana, Nicola Bizzaro
Diagnostic technology is rapidly evolving, and over the last decade, substantial progress has been made even for the identification of antibodies, increasingly approaching this type of diagnostic to that of automated clinical chemistry laboratory. In this review, we describe the analytical and diagnostic characteristics of chemiluminescence technology in its strength and in its applicability for a more rapid and accurate diagnosis of autoimmune diseases. The wide dynamic range, greater than that of immunoenzymatic methods, the high sensitivity and specificity of the results expressed in quantitative form, the high degree of automation and the clinical implications related to the reduction in the turnaround time, and the ability to run a large number of antibody tests (even of different isotypes), directed towards large antigenic panels in random access mode, make this technology the most advanced in the clinical laboratory, with enormous repercussions on the workflow and on the autoimmunology laboratory organisation...
December 2017: Auto- Immunity Highlights
https://www.readbyqxmd.com/read/28647490/sex-biased-eicosanoid-biology-impact-for-sex-differences-in-inflammation-and-consequences-for-pharmacotherapy
#3
REVIEW
Simona Pace, Lidia Sautebin, Oliver Werz
The incidence, severity and progression of autoimmune diseases (e.g. scleroderma, multiple sclerosis, rheumatoid arthritis) and certain inflammatory diseases (e.g. asthma) are sex-biased where these pathologies dominate in women. However, other immune disorders such as sepsis, post-surgery infections and gout display higher incidence and severity in men. The molecular and cellular basis underlying this sex dimorphism remains incompletely elucidated but may provide important insights for sex-specific pharmacotherapy...
June 21, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28647488/autoreactivity-to-malondialdehyde-modifications-in-rheumatoid-arthritis-is-linked-to-disease-activity-and-synovial-pathogenesis
#4
Caroline Grönwall, Khaled Amara, Uta Hardt, Akilan Krishnamurthy, Johanna Steen, Marianne Engström, Meng Sun, A Jimmy Ytterberg, Roman A Zubarev, Dagmar Scheel-Toellner, Jeffrey D Greenberg, Lars Klareskog, Anca I Catrina, Vivianne Malmström, Gregg J Silverman
Oxidation-associated malondialdehyde (MDA) modification of proteins can generate immunogenic neo-epitopes that are recognized by autoantibodies. In health, IgM antibodies to MDA-adducts are part of the natural antibody pool, while elevated levels of IgG anti-MDA antibodies are associated with inflammatory and autoimmune conditions. Yet, in human autoimmune disease IgG anti-MDA responses have not been well characterized and their potential contribution to disease pathogenesis is not known. Here, we investigate MDA-modifications and anti-MDA-modified protein autoreactivity in rheumatoid arthritis (RA)...
June 21, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28647454/elevated-serum-met-5-enkephalin-levels-correlate-with-improved-clinical-and-behavioral-outcomes-in-experimental-autoimmune-encephalomyelitis
#5
Michael D Ludwig, Ian S Zagon, Patricia J McLaughlin
Methionine enkephalin ([Met(5)]-enkephalin, Opioid growth factor (OGF)) is a small neuropeptide with growth-related as well as immunomodulatory properties. OGF is distributed widely throughout the body, is both autocrine and paracrine produced, and has a very short half-life in serum. In addition to its neurotransmitter functions, OGF inhibits cell replication of a wide variety of cells involved in the autoimmune process. In this preclinical study, mice were immunized with myelin oligodendrocytic glycoprotein (MOG35-55) to establish a chronic progressive form of autoimmune encephalomyelitis (EAE), and serum enkephalin levels were assessed throughout the disease as well as in response to OGF therapy in order to determine whether OGF may be a biological marker for EAE and multiple sclerosis...
June 21, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28647348/pivotal-role-of-lesional-and-perilesional-t-b-lymphocytes-in-pemphigus-pathogenesis
#6
Huijie Yuan, Shengru Zhou, Zhicui Liu, Weiting Cong, Xiaochun Fei, Weihong Zeng, Haiqin Zhu, Renchao Xu, Ying Wang, Jie Zheng, Meng Pan
Pemphigus is a skin and mucosal membrane-targeting autoimmune bullous disease. Previous studies have demonstrated that circulating anti-desmoglein1/3 antibodies are pathogenic and mediate blister formation. However, the role of infiltrated immune cells in the lesional skin has not been fully investigated. In this study we showed that there existed a large number of B, T lymphocytes and plasma cells in the skin lesions by immunohistochemistry and immunofluorescence staining. In addition, a significantly increased number of Dsg1 and Dsg3-specific B cells could be identified by flow cytometric analysis or ELISPOT assay...
June 21, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28647211/tubuloreticular-inclusions-in-peritubular-capillaries-of-renal-allografts
#7
Jee Youn Lee, Seung Hwan Song, Yu Seun Kim, Beom Jin Lim, Soon Il Kim, Myoung Soo Kim, Hyeon Joo Jeong
BACKGROUND: Tubuloreticular inclusions (TRIs) are anastomosing networks of microtubules that are frequently found in autoimmune diseases and viral infections. In renal allografts, TRIs have been reported in glomerular endothelial cells in association with viral infections and donor specific antibodies (DSAs), but their presence in peritubular capillaries has not been explored. METHODS: We collected seven cases with TRIs out of 148 consecutive renal allograft biopsies taken from Dec...
June 6, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28646913/interplay-between-craniofacial-stem-cells-and-immune-stimulus
#8
REVIEW
Ruili Yang, Tingting Yu, Yanheng Zhou
Craniofacial mesenchymal stem cells (MSCs), isolated from an abundant and accessible source of craniofacial tissues, possess self-renewal and multilineage differentiation potential. It has been reported that craniofacial MSCs show elevated proliferation and regeneration capacities compared to bone marrow mesenchymal stem cells (BMMSCs). Furthermore, the immunomodulatory property has generated an emerging multidisciplinary research field that translates MSC-based therapies to the clinic for the treatment of inflammatory and autoimmune diseases...
June 24, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28646890/influence-of-type-i-ifn-signaling-on-anti-mog-antibody-mediated-demyelination
#9
Carsten Tue Berg, Reza Khorooshi, Nasrin Asgari, Trevor Owens
BACKGROUND: Antibodies with specificity for myelin oligodendrocyte glycoprotein (MOG) are implicated in multiple sclerosis and related diseases. The pathogenic importance of anti-MOG antibody in primary demyelinating pathology remains poorly characterized. OBJECTIVE: The objective of this study is to investigate whether administration of anti-MOG antibody would be sufficient for demyelination and to determine if type I interferon (IFN) signaling plays a similar role in anti-MOG antibody-mediated pathology, as has been shown for neuromyelitis optica-like pathology...
June 24, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28646814/nutritional-management-of-metabolic-endotoxemia-a-clinical-review
#10
Benjamin I Brown
Context • Diet-induced, metabolic endotoxemia is emerging as an important contributory factor to the development of a wide range of chronic diseases, including cardiometabolic, autoimmune, psychiatric, and neurodegenerative illnesses. Emerging human clinical studies have demonstrated that diet and dietary components are potent modifiers of circulating endotoxins and can be used to reduce plasma levels significantly and improve metabolic health. Objective • The aim of the current study was to explore briefly the concept of metabolic endotoxemia and its relationship to disease development, to examine the influence of diet and dietary components on circulating endotoxins, and, finally, discuss the clinical relevance of nutritional interventions for management of metabolic endotoxemia...
July 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646772/prevalence-of-immune-related-systemic-adverse-events-in%C3%A2-patients-treated-with-anti-programmed-cell-death-1-anti-programmed-cell-death-ligand-1-agents-a-single-centre-pharmacovigilance-database-analysis
#11
Sébastien Le Burel, Stéphane Champiat, Christine Mateus, Aurélien Marabelle, Jean-Marie Michot, Caroline Robert, Rakiba Belkhir, Jean-Charles Soria, Salim Laghouati, Anne-Laure Voisin, Olivier Fain, Arsène Mékinian, Laetitia Coutte, Tali-Anne Szwebel, Laetitia Dunogeant, Bertrand Lioger, Cécile Luxembourger, Xavier Mariette, Olivier Lambotte
AIM: The growing use of immune checkpoint inhibitors (ICIs) is associated with the occurrence of immune-related adverse events (irAEs). Few data are published on systemic, immunohaematological and rheumatic irAEs. In a pharmacovigilance database analysis, we screened for these irAEs and calculated their prevalence. PATIENTS AND METHODS: Participants were recruited via Registre des Effets Indésirables Sévères des Anticorps Monoclonaux Immunomodulateurs en Cancérologie (REISAMIC)(1) a French registry of grade ≥2 irAEs occurring in ICI-treated patients...
June 21, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28646635/postprandial-endotoxemia-a-significant-contributor-to-chronic-diseases
#12
Andrew W Campbell
The increase of chronic diseases in the world's population continues unabated. Cardiovascular disease (CVD), type 2 diabetes (T2D), obesity, arthritis, autoimmunity, and gastrointestinal disorders are all too common and costly, and most have as their source inflammation. T2D is now considered a pandemic, and there is one commonality to many of these: They are, for the most part, preventable.
May 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646573/interferon-%C3%AE-regulates-dendritic-cell-activation-and-migration-in-experimental-autoimmune-encephalomyelitis
#13
Leesa M Pennell, Eleanor N Fish
CD11c+ dendritic cells (DCs) exert a critical role as antigen-presenting cells in regulating pathogenic T cells in multiple sclerosis (MS). To determine whether the therapeutic benefit of interferon (IFN)-β treatment for MS is in part influenced by IFN regulation of DC function, we examined the immunophenotype of DCs derived from IFN-β(+/+) and IFN-β(-/-) mice using a myelin oligodendrocyte glycoprotein (MOG) peptide-induced mouse model of MS, experimental autoimmune encephalomyelitis (EAE). Our earlier work identified that IFN-β(-/-) mice exhibit earlier onset and more rapid progression of neurologic impairment compared with IFN-β(+/+) mice...
June 24, 2017: Immunology
https://www.readbyqxmd.com/read/28646511/control-of-autoimmune-inflammation-using-liposomes-to-deliver-positive-allosteric-modulators-of-metabotropic-glutamate-receptors
#14
Joshua M Gammon, Arjun R Adapa, Christopher M Jewell
Multiple sclerosis (MS) is an autoimmune disease where myelin is incorrectly recognized as foreign and attacked by the adaptive immune system. Dendritic cells (DCs) direct adaptive immunity by presenting antigens to T cells, therefore serving as a target for autoimmune therapies. N-Phenyl-7-(hydroxyimino)cyclopropa[b]chromen-1a-carboxamide (PHCCC), a positive allosteric modulator of metabotropic glutamate receptor 4 (mGluR4), can promote regulatory T cells by altering cytokine secretion to bias T cell differentiation...
June 24, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28646409/neuroprotective-effects-of-g-csf-administration-in-microglia-mediated-reactive-t-cell-activation-in-vitro
#15
Wei Peng
G-CSF is a growth factor that has known neuroprotective effects in a variety of experimental brain injury models. As both antigen-presenting microglia and reactive T cells are key components in the development and progression of EAE, the aim of this study is to investigate the neuroprotective effects of recombinant human G-CSF, as administered in microglia-mediated reactive T cell assay in vitro. Our results indicate that G-CSF treatment has no apparent effect for the resting un-activated microglia. G-CSF pre-protection of microglia increased protective cytokine IL-4 production and effectively inhibited the productions of NO and other inflammatory mediators (IFN-γ, TNF-α, IL-1β, IL-17, and chemokine MCP-1) after LPS stimulation...
June 23, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28646392/the-changing-landscape-of-alopecia-areata-the-translational-landscape
#16
REVIEW
Etienne C E Wang, Angela M Christiano
Recent genetic and preclinical studies have increased our understanding of the immunopathogenesis of alopecia areata (AA). This has allowed expedited development of targeted therapies for the treatment of AA, and a paradigm shift in our approach and understanding of autoimmunity and the hair follicle. The synergy between preclinical studies, animal models, and translational studies has led to unprecedented advances in the treatment options for AA, ultimately benefiting patients who have had little recourse...
June 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28646391/the-changing-landscape-of-alopecia-areata-an-introduction
#17
REVIEW
George Han
Alopecia areata is an extremely common autoimmune condition affecting hair. Severe forms of alopecia areata exist, with existing treatments consisting of systemic immunosuppressants with numerous side effects. Recently, breakthroughs have been made in both understanding the pathogenesis of alopecia areata and the treatment thereof, which hold the promise of being able to target severe cases of alopecia areata with more efficacy and better tolerability. This article serves as an introduction to review papers from two of the leading researchers in the field of alopecia areata...
June 23, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28646336/nogo-a-antibodies-enhance-axonal-repair-and-remyelination-in-neuro-inflammatory-and-demyelinating-pathology
#18
Benjamin V Ineichen, Sandra Kapitza, Christiane Bleul, Nicolas Good, Patricia S Plattner, Maryam S Seyedsadr, Julia Kaiser, Marc P Schneider, Björn Zörner, Roland Martin, Michael Linnebank, Martin E Schwab
Two hallmarks of chronic multiple sclerosis lesions are the absence of significant spontaneous remyelination and primary as well as secondary neurodegeneration. Both characteristics may be influenced by the presence of inhibitory factors preventing myelin and neuronal repair. We investigated the potential of antibodies against Nogo-A, a well-known inhibitory protein for neuronal growth and plasticity, to enhance neuronal regeneration and remyelination in two animal models of multiple sclerosis. We induced a targeted experimental autoimmune encephalomyelitis (EAE) lesion in the dorsal funiculus of the cervical spinal cord of adult rats resulting in a large drop of skilled forelimb motor functions...
June 23, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28646118/direct-oral-anticoagulants-for-treatment-of-hit-update-of-hamilton-experience-and-literature-review
#19
Theodore E Warkentin, Menaka Pai, Lori-Ann Linkins
Direct oral anticoagulants (DOACs) are attractive options for treatment of heparin-induced thrombocytopenia (HIT). We report our continuing experience in Hamilton, Canada, since January 1, 2015 (when we completed our prospective rivaroxaban for HIT study) using rivaroxaban for serologically-confirmed HIT (4Ts score ≥4 points, PF4/heparin immunoassay-positive, serotonin-release assay positive). We also performed a literature review of HIT treatment using a DOAC (rivaroxaban, apixaban, dabigatran, edoxaban)...
June 23, 2017: Blood
https://www.readbyqxmd.com/read/28646072/genetic-and-environmental-interactions-modify-the-risk-of-diabetes-related-autoimmunity-by-6-years-of-age-the-teddy-study
#20
Jeffrey P Krischer, Kristian F Lynch, Åke Lernmark, William A Hagopian, Marian J Rewers, Jin-Xiong She, Jorma Toppari, Anette-G Ziegler, Beena Akolkar
OBJECTIVE: We tested the associations between genetic background and selected environmental exposures with respect to islet autoantibodies and type 1 diabetes. RESEARCH DESIGN AND METHODS: Infants with HLA-DR high-risk genotypes were prospectively followed for diabetes-related autoantibodies. SNPs came from the Illumina ImmunoChip and environmental exposure data were by parental report. Children were followed to age 6 years. RESULTS: Insulin autoantibodies occurred earlier than GAD antibody (GADA) and then declined, while GADA incidence rose and remained constant (significant in HLA-DR4 but not in the DR3/3 children)...
June 23, 2017: Diabetes Care
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