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K Soelberg, A C Nilsson, C Nielsen, S Jarius, M Reindl, B Wildemann, S T Lillevang, N Asgari
BACKGROUND: Optic neuritis (ON) is an inflammatory optic neuropathy, where the genetic and autoimmune dependency remains poorly characterized. OBJECTIVE: To investigate autoimmune and immunogenetic aspects of ON. METHOD: In a prospective population-based cohort 51 patients with ON were included. At follow up 20 patients had progressed to multiple sclerosis (MS-ON). All patients were screened for neuronal and systemic autoantibodies. HLA genotypes and allele and genotype frequencies of the PTPN22 C1858T and the PD-1...
March 7, 2018: Multiple Sclerosis and related Disorders
Laurits J Holm, Martin Haupt-Jorgensen, Jesper Larsen, Jano D Giacobini, Mesut Bilgin, Karsten Buschard
Sphingolipids are a diverse group of lipids with important roles in beta-cell biology regulating insulin folding and controlling apoptosis. Sphingolipid biosynthesis begins with the condensation of L-serine and palmitoyl-CoA. Here we tested the effect of L-serine supplementation on autoimmune diabetes development and blood glucose homeostasis in female NOD mice. We found that continuous supplementation of L-serine reduces diabetes incidence and insulitis score. In addition, L-serine treated mice had an improved glucose tolerance test, reduced HOMA-IR, and reduced blood glucose levels...
2018: PloS One
Carmen Scheibenbogen, Madlen Loebel, Helma Freitag, Anne Krueger, Sandra Bauer, Michaela Antelmann, Wolfram Doehner, Nadja Scherbakov, Harald Heidecke, Petra Reinke, Hans-Dieter Volk, Patricia Grabowski
INTRODUCTION: Infection-triggered disease onset, chronic immune activation and autonomic dysregulation in Chronic Fatigue Syndrome/Myalgic Encephalomyelitis (CFS/ME) point to an autoimmune disease directed against neurotransmitter receptors. We had observed elevated autoantibodies against ß2 adrenergic receptors, and muscarinic 3 and 4 acetylcholine receptors in a subset of patients. Immunoadsorption (IA) was shown to be effective in removing autoantibodies and improve outcome in various autoimmune diseases...
2018: PloS One
Allison M Weis, Raymond Soto, June L Round
The commensal microbiota influences many aspects of immune system regulation, including T cells, but molecular details of how this occurs are largely unknown. Here we review our findings that the microbiota regulates Erdr1, a secreted apoptotic factor, to control T cell survival. Erdr1 is highly upregulated in CD4+ T cells from germfree mice and antibiotic treated animals, and our study shows that Erdr1 is suppressed by the microbiota via Toll-like receptor signaling and MyD88 dependent pathways. Erdr1 functions in an autocrine fashion and promotes apoptosis through the FAS/FASL pathway...
March 15, 2018: Gut Microbes
Hadil Ak AlOtair, Abdulaziz H Alzeer, Mohammed A Abdou, Shaden O Qasrawi
Central alveolar hypoventilation is rarely encountered. This case report describes a young woman who was recently diagnosed with hypertension and ischemic heart disease. She presented to the emergency room with hypercapnic respiratory failure, for which she was mechanically ventilated. This was preceded by an acute upper respiratory tract infection. She was initially suspected to have Guillain-Barré syndrome, but further investigations ruled out neuromuscular or autoimmune disorders. Sleep-related hypoventilation was suspected after she experienced recurrent apneas at night that resulted in re-intubation...
March 2018: Saudi Medical Journal
Elizabeth F Redente, Martin A Aguilar, Bart P Black, Benjamin Edelman, Ali Bahadur, Stephen M Humphries, David A Lynch, Lutz Wollin, David W H Riches
Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) develops in approximately 20% of patients with RA. SKG mice, which are genetically prone to developing autoimmune arthritis, develop a pulmonary interstitial pneumonia that resembles human cellular and fibrotic non-specific interstitial pneumonia. Nintedanib, a tyrosine kinase inhibitor approved for the treatment of idiopathic pulmonary fibrosis, has been shown to reduce lung function decline. Therefore, we investigated the effect of nintedanib on the development of pulmonary fibrosis and joint disease in female SKG mice with arthritis induced by intraperitoneal injection of zymosan (5 mg)...
March 15, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
Purva Sharma, Yash Jobanputra, Karen Lewin, Stuart Bagatell, Daniel Lichtstein
BACKGROUND: Diabetic ketoacidosis (DKA) is a serious complication of diabetes seen commonly in autoimmune Type 1 diabetes mellitus (DM), however patients with Type 2 diabetes are also at risk. Diabetic ketoacidosis may be precipitated by the catabolic stress of acute illness such as trauma, surgery, or infections. Recent studies have suggested that sodium glucose cotransporter-2 (SGLT-2) inhibitors precipitate DKA in Type 2 diabetes. We present a case series of four patients on SGLT-2 inhibitors who presented with DKA...
March 13, 2018: Reviews on Recent Clinical Trials
Francesco Caso, Marco Tasso, Pasquale Ambrosino, Matteo Nicola, Dario Di Minno, Roberta Lupoli, Livio Criscuolo, Paolo Caso, Francesco Ursini, Antonio Del Puente, Raffaele Scarpa, Luisa Costa, Rosario Peluso
BACKGROUND: Psoriatic arthritis is a chronic inflammatory arthropathy that affects 14%-30% of patients with skin and/or nail psoriasis and leading to severe physical limitations and disability. It has been included in the group of spondyloarthropathy with which it shares clinical, radiologic, and serologic features in addition to familial and genetic relationship. Beyond skin and joint involvement, psoriatic arthritis is characterized by a high prevalence of extra-articular manifestation and comorbidities, such as autoimmune, infectious and neoplastic diseases...
March 13, 2018: Reviews on Recent Clinical Trials
Margarita Villar, Lourdes Mateos-Hernandez, Jose de la Fuente
BACKGROUND: Why an autoimmune disease that is the main cause of the acute neuromuscular paralysis worldwide has not yet a well-characterized cause or an effective treatment? The existence of different clinical variants for the Guillain-Barré syndrome (GBS) coupled with the fact that a high number of pathogens can cause an infection that sometimes, but not always, precedes the development of the syndrome, confers a high degree of uncertainty for both prognosis and treatment. In the post-genomic era, the development of omics technologies for the high-throughput analysis of biological molecules is allowing the characterization of biological systems in a degree of depth unimaginable before...
March 14, 2018: Current Medicinal Chemistry
Daniel Geh, Caroline Gordon
Systemic lupus erythematosus (SLE) is a multi-system autoimmune disease. There are three drugs licensed for the treatment of lupus: corticosteroids, hydroxychloroquine and belimumab. Immunosuppressants such as azathioprine, methotrexate and mycophenolate are also used. Despite these treatments there is still considerable morbidity. New treatments are needed for the management of active lupus. Epratuzumab a humanized IgG1 monoclonal antibody that targets CD22 resulting in selective B cell modulation that has been considered a potential treatment for SLE...
March 15, 2018: Expert Review of Clinical Immunology
Mohammad Sajad Emami Aleagha, Mohammad Hossein Harirchian, Shahram Lavasani, Mohammad Javan, Abdolamir Allameh
Recently, we reported a positive correlation between Klotho, as an anti-aging protein, and the total antioxidant capacity (TAC) in cerebrospinal fluid (CSF) of multiple sclerosis (MS) patients. However, there is no information about the Klotho and TAC changes within the central nervous system (CNS). Thus, the current study aimed to employ an experimental autoimmune encephalomyelitis (EAE) model in C57BL/6 mice using MOG35-55 peptide to examine the relationship between Klotho and TAC within the CNS. To this end, the brain and spinal cord were obtained at the onset and peak stages of EAE as well as non-EAE mice (sham/control groups)...
March 14, 2018: Journal of Molecular Neuroscience: MN
Adriano Luís Soares De Souza, Stefan Rudin, Rui Chang, Keith Mitchell, Timothy Crandall, Shuning Huang, Ji-Kyung Choi, Shinji L Okitsu, Danielle L Graham, Blake Tomkinson, Tammy Dellovade
INTRODUCTION: Antigen-specific immunotherapy could provide a targeted approach for the treatment of multiple sclerosis that removes the need for broad-acting immunomodulatory drugs. ATX-MS-1467 is a mixture of four peptides identified as the main immune-dominant disease-associated T-cell epitopes in myelin basic protein (MBP), an autoimmune target for activated autoreactive T cells in multiple sclerosis. Previous animal studies have shown that ATX-MS-1467 treatment prevented the worsening of signs of disease in experimental autoimmune encephalitis (EAE) in the humanized (DR2 × Ob1)F1 mouse in a dose-dependent fashion...
March 14, 2018: Neurology and Therapy
Ya-Mei Zhang, Han-Bo Yang, Jing-Li Shi, He Chen, Xiao-Ming Shu, Xin Lu, Guo-Chun Wang, Qing-Lin Peng
Autoantibodies against poly-U-binding factor 60 kDa protein (PUF60) have been reported in Caucasian dermatomyositis (DM) patients. However, their clinical significance in idiopathic inflammatory myopathy (IIM) remains to be fully clarified. Our objective was to analyze the prevalence and clinical significance of anti-PUF60 antibodies in a large cohort of Chinese IIM patients. In our study, 388 IIM patients, 301 disease controls, and 167 healthy controls (HCs) were involved. An enzyme-linked immunosorbent assay (ELISA) was developed to detect serum anti-PUF60 levels and was validated using immunoblotting methods...
March 15, 2018: Clinical Rheumatology
Tatsuya Seki, Yasushige Shingu, Hiroshi Sugiki, Satoru Wakasa, Hiroki Katoh, Tomonori Ooka, Tsuyoshi Tachibana, Suguru Kubota, Yoshiro Matsui
Antiphospholipid syndrome (APS) is a complex autoimmune disease often related to systemic lupus erythematosus. Although adequate anticoagulation is important for APS patients during cardiopulmonary bypass, clotting tests can be potentially misleading due to antiphospholipid antibodies. We performed cardiac surgery safely in two APS patients under anticoagulation monitoring determined using preoperative heparin titration. We performed heparin titration for activated clotting time to determine the appropriate heparin concentration during cardiac surgery...
March 14, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Ilaria Cavazzana, Laura Andreoli, Maarteen Limper, Franco Franceschini, Angela Tincani
PURPOSE OF REVIEW: This review focuses on new clinical aspects of antiphospholipid syndrome (APS) in the last 5 years. RECENT FINDINGS: The pathogenesis of APS is related to endothelial activation by mechanisms other than autoantibody-mediated massive coagulation. These include Toll-like receptors, the m-TORC pathway, and neutrophil activation, inducing an uncontrolled inflammatory cascade. Given these new pathogenetic hypotheses, the treatment of APS could be directed towards a fine balance between anticoagulation and immunomodulation...
March 15, 2018: Current Rheumatology Reports
Eleuza Rodrigues Machado, Núbia Oliveira Matos, Sinione Morais Rezende, Daniela Carlos, Thauana Cristina Silva, Leônia Rodrigues, Maria Jarlene Rodrigues Almeida, Maria Regina Fernandes de Oliveira, Maria Imaculada Muniz-Junqueira, Rodrigo Gurgel-Gonçalves
Host-parasite interactions in diabetic patients might influence diabetes complications and intestinal parasitosis. The aim was to investigate the occurrence of enteroparasites in individuals with diabetes types 1 and 2. A descriptive study was designed to estimate frequencies of parasites and to compare them in individuals with diabetes types 1 and 2 from two Health Centers and one hospital in the Federal District of Brazil. Patients were allocated to the study by convenience. Three fecal samples of 156 diabetic individuals (120 type 1 and 36 type 2) were analyzed using two parasitological methods...
2018: Journal of Diabetes Research
Ali S Haider, Christopher S Graffeo, Avital Perry, Lucas P Carlstrom, Terry C Burns
Insular gliomas were previously considered inoperable lesions and were typically treated via biopsy, chemotherapy and/or radiation, if not observation alone. Stereotactic biopsies of low grade insular gliomas can underestimate tumor grade or fail to establish malignancy. Moreover, the survival advantages of maximal safe resection for insular lesions are increasingly being recognized. As such, early surgical resection is increasingly being performed. As with most lesions, a differential diagnosis exists for apparent insular gliomas, with definitive diagnosis generally obtained upon resection...
January 11, 2018: Curēus
Jianbo Chen, Yao Zhang, Yunsheng Liang, Ming Zhao, Hai Long, Rong Xiao, Haijing Wu, Jieyue Liao, Shuaihantian Luo, Guiying Zhang, Qianjin Lu
Pemphigus vulgaris is an autoimmune blistering disease characterized by a loss of epidermal cell-cell adhesion caused by anti-desmoglein (Dsg) autoantibodies. The pathogenesis of PV remains unclear. However, abnormal frequency and function of Th2 cells are believed to contribute to PV. We investigated Nr4a2, a transcription factor, which has been found to regulate T cell differentiation, for its association with Th2 cell differentiation and functions in PV. We found significantly decreased mRNA and protein levels of Nr4a2 in CD4+ T cells from patients with PV, compared with healthy control subjects...
February 16, 2018: Oncotarget
Emma L Smith, Mark Peakman
Autoimmune and allergic diseases occur when an individual mounts an inappropriate immune response to a self-antigen or an innocuous environmental antigen. This triggers a pathogenic T-cell response resulting in damage to specific tissues and organs. In type 1 diabetes (T1D), this manifests as destruction of the insulin-secreting β cells, resulting in a life-long dependency on recombinant insulin. Modulation of the pathogenic T-cell response with antigen-specific peptide immunotherapy offers the potential to restore the immune homeostasis and prevent further tissue destruction...
2018: Frontiers in Immunology
Xinhua Yu, Anika Kasprick, Karin Hartmann, Frank Petersen
Skin mast cells (MCs), a resident immune cell type with broad regulatory capacity, play an important role in sensing danger signals as well as in the control of the local immune response. It is conceivable to expect that skin MCs regulate autoimmune response and are thus involved in autoimmune diseases in the skin, e.g., autoimmune bullous dermatoses (AIBD). Therefore, exploring the role of MCs in AIBD will improve our understanding of the disease pathogenesis and the search for novel therapeutic targets. Previously, in clinical studies with AIBD, particularly bullous pemphigoid, patients' samples have demonstrated that MCs are likely involved in the development of the diseases...
2018: Frontiers in Immunology
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