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https://www.readbyqxmd.com/read/27933584/matrine-treatment-blocks-nogoa-induced-neural-inhibitory-signaling-pathway-in-ongoing-experimental-autoimmune-encephalomyelitis
#1
Quan-Cheng Kan, Hui-Jun Zhang, Yuan Zhang, Xing Li, Yu-Ming Xu, Rodolfo Thome, Ming-Liang Zhang, Nan Liu, Yao-Juan Chu, Guang-Xian Zhang, Li Zhu
Myelin-associated inhibitors, such as NogoA, myelin-associated glycoprotein (MAG), and oligodendrocyte myelin glycoprotein (OMgp), play a pivotal role in the lack of neuroregeneration in multiple sclerosis, an inflammatory demyelinating disease of the central nervous system (CNS). Matrine (MAT), a monomer that is used in traditional Chinese medicine as an anti-inflammatory agent, has shown beneficial effects in experimental autoimmune encephalomyelitis (EAE), an animal model of MS. However, the underlying mechanisms of MAT-induced EAE amelioration are not fully understood...
December 9, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27933432/lupus-pathobiology-based-on-genomics
#2
REVIEW
Mohammad Saeed
Systemic lupus erythematosus (SLE) is an autoimmune disorder with complex genetic underpinnings. This review attempts to assemble the myriad of genomic findings to build a clearer picture of the pathobiology of SLE to serve as a guide for therapeutics. Over 100 genes are now known for SLE, and several more penetrant ones have led to the emergence of more defined lupus phenotypes. Also discussed here are the targeted therapies that have come up on the horizon and the specific biologic mechanisms of more traditional therapies which have only recently been explored...
December 8, 2016: Immunogenetics
https://www.readbyqxmd.com/read/27933384/thyroid-autoimmunity-is-really-associated-with-papillary-thyroid-carcinoma
#3
Alev Selek, Berrin Cetinarslan, Ilhan Tarkun, Zeynep Canturk, Berna Ustuner, Zeynep Akyay
The incidence of thyroid cancer has been greatly increasing. Several studies aimed to investigate biomarkers for prediction of thyroid cancer. Some of these studies have suggested that thyroid autoantibodies (TAb) could be used as predictors of thyroid cancer risk, but the correlation between TAb and PTC is still a matter of debate. The aim of this study is to evaluate thyroid autoimmunity and TAbs in patients with PTC and benign multinodular goiter (MNG) to investigate if TAbs and autoimmune thyroid disease (ATD) could predict thyroid malignancy...
December 8, 2016: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/27933175/hyperinsulinemic-hypoglycemia-associated-with-insulin-antibodies-caused-by-exogenous-insulin-analog
#4
Chih-Ting Su, Yi-Chun Lin
: Insulin antibodies (IA) associated with exogenous insulin administration seldom caused hypoglycemia and had different characteristics from insulin autoantibodies (IAA) found in insulin autoimmune syndrome (IAS), which was first described by Dr Hirata in 1970. The characteristic of IAS is the presence of insulin-binding autoantibodies and related fasting or late postprandial hypoglycemia. Here, we report a patient with type 1 diabetes mellitus under insulin glargine and insulin aspart treatment who developed recurrent spontaneous post-absorptive hyperinsulinemic hypoglycemia with the cause probably being insulin antibodies induced by exogenous injected insulin...
2016: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/27933063/aire-downregulation-is-associated-with-changes-in-the-posttranscriptional-control-of-peripheral-tissue-antigens-in-medullary-thymic-epithelial-cells
#5
Ernna H Oliveira, Claudia Macedo, Cristhianna V Collares, Ana Carolina Freitas, Paula Barbim Donate, Elza T Sakamoto-Hojo, Eduardo A Donadi, Geraldo A Passos
Autoimmune regulator (Aire) is a transcriptional regulator of peripheral tissue antigens (PTAs) and microRNAs (miRNAs) in medullary thymic epithelial cells (mTECs). In this study, we tested the hypothesis that Aire also played a role as an upstream posttranscriptional controller in these cells and that variation in its expression might be associated with changes in the interactions between miRNAs and the mRNAs encoding PTAs. We demonstrated that downregulation of Aire in vivo in the thymuses of BALB/c mice imbalanced the large-scale expression of these two RNA species and consequently their interactions...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27933060/regulators-of-tfh-cell-differentiation
#6
REVIEW
Gajendra M Jogdand, Suchitra Mohanty, Satish Devadas
The follicular helper T (Tfh) cells help is critical for activation of B cells, antibody class switching, and germinal center (GC) formation. The Tfh cells are characterized by the expression of CXC chemokine receptor 5 (CXCR5), ICOS, programed death 1 (PD-1), B cell lymphoma 6 (BCL-6), and IL-21. They are involved in clearing infections and are adversely linked with autoimmune diseases and also have a role in viral replication as well as clearance. On the one hand, Tfh cells are generated from naive CD4(+) T cells with sequential steps involving cytokine signaling (IL-21, IL-6, IL-12, activin A), migration, and positioning in the GC by CXCR5, surface receptors (ICOS/ICOSL, signaling lymphocyte activation molecule-associated protein/signaling lymphocyte activation molecule) as well as transcription factor (BCL-6, c-Maf, and signal transducer and activator of transcription 3) signaling and repressor miR155...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27932857/vogt-koyanagi-harada-syndrome-current-perspectives
#7
REVIEW
Abeir Baltmr, Sue Lightman, Oren Tomkins-Netzer
Vogt-Koyanagi-Harada syndrome is a cause of noninfectious panuveitis, leading to significant vision loss in many patients. It is an autoimmune disease occurring in genetically susceptible individuals and clinically presents as bilateral panuveitis with serous retinal detachments and hyperemic, swollen optic discs, which are associated with neurological and auditory manifestations. Early diagnosis and prompt and adequate treatment with immunosuppressive agents (corticosteroids and other immunosuppressive drugs) may halt disease progression and prevent recurrences and vision loss...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27932698/identification-of-inhibitors-of-the-association-of-zap-70-with-the-t-cell-receptor-by-high-throughput-screen
#8
Patrick R Visperas, Christopher G Wilson, Jonathan A Winger, Qingrong Yan, Kevin Lin, Michelle R Arkin, Arthur Weiss, John Kuriyan
ZAP-70 is a critical molecule in the transduction of T cell antigen receptor signaling and the activation of T cells. Upon activation of the T cell antigen receptor, ZAP-70 is recruited to the intracellular ζ-chains of the T cell receptor, where ZAP-70 is activated and colocalized with its substrates. Inhibitors of ZAP-70 could potentially function as treatments for autoimmune diseases or organ transplantation. In this work, we present the design, optimization, and implementation of a screen for inhibitors that would disrupt the interaction between ZAP-70 and the T cell antigen receptor...
December 8, 2016: Journal of Biomolecular Screening
https://www.readbyqxmd.com/read/27932335/multicentre-randomised-placebo-controlled-trial-of-oral-anticoagulation-with-apixaban-in-systemic-sclerosis-related-pulmonary-arterial-hypertension-the-sphinx-study-protocol
#9
Alicia Calderone, Wendy Stevens, David Prior, Harshal Nandurkar, Eli Gabbay, Susanna M Proudman, Trevor Williams, David Celermajer, Joanne Sahhar, Peter K K Wong, Vivek Thakkar, Nathan Dwyer, Jeremy Wrobel, Weng Chin, Danny Liew, Margaret Staples, Rachelle Buchbinder, Mandana Nikpour
INTRODUCTION: Systemic sclerosis (SSc) is a severe and costly multiorgan autoimmune connective tissue disease characterised by vasculopathy and fibrosis. One of the major causes of SSc-related death is pulmonary arterial hypertension (PAH), which develops in 12-15% of patients with SSc and accounts for 30-40% of deaths. In situ thrombosis in the small calibre peripheral pulmonary vessels resulting from endothelial dysfunction and an imbalance of anticoagulant and prothrombotic mediators has been implicated in the complex pathophysiology of SSc-related PAH (SSc-PAH), with international clinical guidelines recommending the use of anticoagulants for some types of PAH, such as idiopathic PAH...
December 8, 2016: BMJ Open
https://www.readbyqxmd.com/read/27932211/a-novel-class-of-somatic-mutations-in-blood-detected-preferentially-in-cd8-cells
#10
Miko Valori, Lilja Jansson, Anna Kiviharju, Pekka Ellonen, Hanna Rajala, Shady Adnan Awad, Satu Mustjoki, Pentti J Tienari
Somatic mutations have a central role in cancer but their role in other diseases such as autoimmune disorders is poorly understood. Earlier work has provided indirect evidence of rare somatic mutations in autoreactive T-lymphocytes in multiple sclerosis (MS) patients but such mutations have not been identified thus far. We analysed somatic mutations in blood in 16 patients with relapsing MS and 4 with other neurological autoimmune disease. To facilitate the detection of somatic mutations CD4+, CD8+, CD19+ and CD4-/CD8-/CD19- cell subpopulations were separated...
December 5, 2016: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/27931982/jak-inhibitor-tofacitinib-suppresses-interferon-alfa-production-by-plasmacytoid-dendritic-cells-and-inhibits-arthrogenic-and-antiviral-effects-of-interferon-alfa
#11
Patrick P C Boor, Petra E de Ruiter, Patrick S Asmawidjaja, Erik Lubberts, Luc J W van der Laan, Jaap Kwekkeboom
Tofacitinib is an oral Janus kinase inhibitor that is effective for the treatment of rheumatoid arthritis and shows encouraging therapeutic effects in several other autoimmune diseases. A prominent adverse effect of tofacitinib therapy is the increased risk of viral infections. Despite its advanced stage of clinical development, the modes of action that mediate the beneficial and adverse effects of tofacitinib in autoimmune diseases remain unclear. Interferon alfa (IFNα) produced by plasmacytoid dendritic cells (PDCs) is critically involved in the pathogenesis of many systemic autoimmune diseases and in immunity to viral infections...
November 20, 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/27931862/new-recommendations-for-pneumococcal-vaccination-in-patients-with-autoimmune-and-inflammatory-diseases
#12
Diana Hernández-Flórez, Roberto González-Benítez, Lara Valor
No abstract text is available yet for this article.
December 5, 2016: Medicina Clínica
https://www.readbyqxmd.com/read/27931300/clinical-and-etiologic-evaluation-of-the-children-with-chronic-urticaria
#13
Dilek Azkur, Ersoy Civelek, Mge Toyran, Emine Dibek Msrlolu, Mustafa Erkoolu, Ayenur Kaya, Emine Vezir, Tayfur Gini, Ayegl Akan, Can Naci Kocaba
BACKGROUND: Chronic urticaria (CU) is a skin disorder defined as daily or almost daily exhibition of pruritic and transient wheals that last for 6 weeks. CU is divided into two subtypes: chronic spontaneous urticaria (CSU) and chronic inducible urticaria (CIndU). OBJECTIVES: To evaluate the clinical features, possible causes, associated findings, and laboratory results of different subtypes of CU in children according to a new classification. METHODS: In this study, we evaluated the clinical features, laboratory investigations, and provocation tests of children with different subtypes of CU according to a new classification...
November 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27931277/american-academy-of-allergy-asthma-immunology-membership-experience-with-allergen-immunotherapy-safety-in-patients-with-specific-medical-conditions
#14
Dsire E S Larenas-Linnemann, David W Hauswirth, Christopher W Calabria, Lawrence D Sher, Matthew A Rank
BACKGROUND: Little data in the literature exist concerning patients with certain underlying medical conditions who receive allergen subcutaneous immunotherapy (SCIT). OBJECTIVE: To survey allergists' experience with SCIT in patients with medical conditions considered to impose an elevated risk for untoward outcomes. METHODS: A Web-based survey was conducted among members of the American Academy of Allergy, Asthma Immunology to query about their experience with SCIT in patients with certain medical conditions...
September 2016: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/27931211/gonadectomy-effects-on-the-risk-of-immune-disorders-in-the-dog-a-retrospective-study
#15
Crystal R Sundburg, Janelle M Belanger, Danika L Bannasch, Thomas R Famula, Anita M Oberbauer
BACKGROUND: Gonadectomy is one of the most common procedures performed on dogs in the United States. Neutering has been shown to reduce the risk for some diseases although recent reports suggest increased prevalence for structural disorders and some neoplasias. The relation between neuter status and autoimmune diseases has not been explored. This study evaluated the prevalence and risk of atopic dermatitis (ATOP), autoimmune hemolytic anemia (AIHA), canine myasthenia gravis (CMG), colitis (COL), hypoadrenocorticism (ADD), hypothyroidism (HYPO), immune-mediated polyarthritis (IMPA), immune-mediated thrombocytopenia (ITP), inflammatory bowel disease (IBD), lupus erythematosus (LUP), and pemphigus complex (PEMC), for intact females, intact males, neutered females, and neutered males...
December 8, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27931107/a-diffusely-enlarged-pancreas-the-un-usual-suspect
#16
Pedro Magalhães-Costa, Maria José Brito, Pedro Pinto-Marques
An 81-years-old female presented with obstructive jaundice and a non-specific clinical picture of nausea and appetite loss. Labs demonstrated a conjugated hyperbilirrubinemia (7.7 mg/dL), increased aspartate aminotransferase and alanine aminotransferase (10xULN and 8xULN, respectively), increased lactate dehydrogenase (10xULN) and serum lipase (3xULN). CA 19.9 was 342 U/mL (Ref value < 37 U/mL). There was no evidence of peripheral lymphadenopathy or hepatosplenomegaly. Imaging (Figure 1A and 1B) revealed a marked homogeneous enlargement of the pancreas (without any well-defined mass), dilation of the extra and intra-hepatic bile ducts and ascites...
December 2016: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/27931088/sglt2-inhibitors-a-systematic-review-of-diabetic-ketoacidosis-and-related-risk-factors-in-the-primary-literature
#17
Kelly R Burke, Christine A Schumacher, Spencer E Harpe
STUDY OBJECTIVE: There is currently minimal information regarding risk factors for the development of sodium-glucose cotransporter-2 inhibitor (SGLT2i)-related diabetic ketoacidosis (DKA). We aim to identify individual patient characteristics associated with cases of SGLT2i-related DKA to better describe potential risk factors. DESIGN: Systematic review of primary literature. PATIENTS: 34 case reports of patients with Type 1 and Type 2 Diabetes Mellitus who developed DKA while receiving an SGLT2i...
December 8, 2016: Pharmacotherapy
https://www.readbyqxmd.com/read/27930871/hepatitis-b-virus-infection-status-is-more-prevalent-in-patients-with-type-2-diabetes
#18
Jun Lu, Xuhong Hou, Hong Tu, Zhenghao Tang, Yongbing Xiang, Yuqian Bao, Jianren Gu, Weiping Jia
AIMS/INTRODUCTION: It has not been reported whether chronic hepatitis B virus (HBV) infection (CHB) is associated with a specific type of diabetes. We sought to investigate the prevalence of CHB status in different diabetes subtypes among Chinese population MATERIALS AND METHODS: This is a cross-sectional study. 381 cases with adult-onset autoimmune diabetes,1365 patients with type 2 diabetes, and 1365 non-diabetic controls were recruited from Jun 2005 to Feb 2014.The exclusion criteria included: (1) HCV-antibody positive, (2) hepatic cirrhosis, (3) malignant neoplasm and severe renal dysfunction (serum creatinine > 450 umol/L)...
December 8, 2016: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/27930731/serum-autoantibody-profiling-of-patients-with-paraneoplastic-and-non-paraneoplastic-autoimmune-retinopathy
#19
Josianne C Ten Berge, Joost van Rosmalen, Jacolien Vermeer, Cecilia Hellström, Cecilia Lindskog, Peter Nilsson, Ulrika Qundos, Aniki Rothova, Marco W J Schreurs
PURPOSE: Although multiple serum antiretinal autoantibodies (ARAs) have been reported in patients with paraneoplastic and non-paraneoplastic autoimmune retinopathy ((n)pAIR), not all retinal antigens involved in (n)pAIR are specified. This study aims to serologically identify patients with presumed (n)pAIR through determination of both known and unknown ARAs by autoantibody profiling. METHODS: An antigen suspension bead array using 188 different antigens representing 97 ocular proteins was performed to detect ARAs in serum samples of patients with presumed (n)pAIR (n = 24), uveitis (n = 151) and cataract (n = 21)...
2016: PloS One
https://www.readbyqxmd.com/read/27930715/apparent-hypothalamic-pituitary-adrenal-axis-suppression-via-reduction-of-interleukin-6-by-glucocorticoid-therapy-in-systemic-autoimmune-diseases
#20
Natsuki Fujio, Shotaro Masuoka, Kotaro Shikano, Natsuko Kusunoki, Toshihiro Nanki, Shinichi Kawai
CONTEXT: Suppression of the hypothalamic-pituitary-adrenal (HPA) axis is a serious complication of systemic glucocorticoid therapy. OBJECTIVE: To clarify the influence of proinflammatory cytokines on the HPA axis after onset of glucocorticoid therapy in patients with systemic autoimmune diseases. PATIENTS AND METHODS: Forty-eight glucocorticoid-naïve patients with systemic autoimmune diseases (28 women) who were starting prednisolone therapy according to our standard regimens were prospectively observed...
2016: PloS One
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