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https://www.readbyqxmd.com/read/28750498/emerging-clinical-issues-and-multivariate-analyses-in-pet-investigations
#1
Javier Arbizu, Alessandro Giuliani, Jaime G Perez-Larraya, Mario Riverol, Cathrine Jonsson, Berta García-García, Maribel Morales, Laura Imaz, Marco Pagani
PET using 18F-2-fluoro-2-deoxy-D-glucose (FDG-PET) has been gradually introduced in the diagnostic clinical criteria of the most prevalent neurodegenerative diseases. Moreover, an increasing amount of literature have shown that the information provided by FDG-PET enhances the sensitivity of standard imaging biomarkers in less frequent disorders in which an early differential diagnosis can be of paramount relevance for patient management and outcome. Therefore emerging uses of FDG-PET may be important in prion diseases, autoimmune encephalitis and amyotrophic lateral sclerosis...
July 27, 2017: Quarterly Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28750305/progressive-hippocampal-sclerosis-after-viral-encephalitis-potential-role-of-nmda-receptor-antibodies
#2
Stoyan Popkirov, Fatme Seval Ismail, Wenke Grönheit, Monika Kapauer, Jörg Wellmer, Christian G Bien
PURPOSE: Survivors of viral encephalitis can develop refractory epilepsy and hippocampal sclerosis. Both the initial infectious insult and the secondary effects of recurrent seizures have been implicated in chronic disease progression. Recently, post-infectious autoimmunity, involved in acute relapses, has also been proposed as a pathomechanism for chronic disease progression. Our case series suggests a potential role of antibodies against the N-methyl-d-aspartate receptor (NMDAR) in chronic inflammatory disease beyond acute manifestations...
July 19, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28750255/effect-of-anti-muscarinic-autoantibodies-on-leukocyte-function-in-sj%C3%A3-gren-s-syndrome
#3
Eun Namkoong, Sang-Woo Lee, Nahyun Kim, Youngnim Choi, Kyungpyo Park
Patients with primary Sjögren's syndrome, a systemic autoimmune disease, have been shown to have serum autoantibodies that react with the muscarinic acetylcholine type 3 receptor (M3R).Primary Sjögren's syndrome is a systemic autoimmune disease. Patients with primary Sjögren's syndrome have been shown to have serum autoantibodies that react with the muscarinic acetylcholine type 3 receptor (M3R). Leukopenia has been reported to be significantly more common in primary Sjögren's syndrome patients who have anti-M3R-autoantibodies in their sera...
July 24, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28749951/vitamin-d-deficient-mice-have-more-invasive-urinary-tract-infection
#4
Olof Hertting, Petra Lüthje, Devin Sullivan, Pontus Aspenström, Annelie Brauner
Vitamin D deficiency is a common health problem with consequences not limited to bone and calcium hemostasis. Low levels have also been linked to tuberculosis and other respiratory infections as well as autoimmune diseases. We have previously shown that supplementation with vitamin D can induce the antimicrobial peptide cathelicidin during ex vivo infection of human urinary bladder. In rodents, however, cathelicidin expression is not linked to vitamin D and therefore this vitamin D-related effect fighting bacterial invasion is not relevant...
2017: PloS One
https://www.readbyqxmd.com/read/28749487/autoimmune-conditions-and-comorbid-depression-in-pregnancy-examining-the-risk-of-preterm-birth-and-preeclampsia
#5
G Bandoli, C D Chambers
OBJECTIVE: The objective of this study was to determine whether prenatal depression interacts with autoimmune conditions to further increase the risk of preterm birth or preeclampsia. STUDY DESIGN: Our sample included 3034 pregnant women with rheumatoid arthritis (RA), Crohn's disease (CD) or psoriasis, or controls that were prospectively enrolled into MothertoBaby pregnancy studies. We estimated the independent and joint effects of the three autoimmune conditions and depression on the select outcomes...
July 27, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28749465/acid-sphingomyelinase-mediates-human-cd4-t-cell-signaling-potential-roles-in-t-cell-responses-and-diseases
#6
REVIEW
Aiping Bai, Yuan Guo
Acid sphingomyelinase (ASM) is a lipid hydrolase. By generating ceramide, ASM had been reported to have an important role in regulating immune cell functions inclusive of macrophages, NK cells, and CD8(+) T cells, whereas the role of ASM bioactivity in regulation of human CD4(+) T-cell functions remained uncertain. Recent studies have provided novel findings in this field. Upon stimulation of CD3 and/or CD28, ASM-dependent ceramide signaling mediates intracellular downstream signal cascades of CD3 and CD28, and regulates CD4(+) T-cell activation and proliferation...
July 27, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28749386/epidermolysis-bullosa-acquisita-and-anti-p200-pemphigoid-as-major-subepidermal-autoimmune-bullous-diseases-diagnosed-by-floor-binding-on-indirect-immunofluorescence-microscopy-using-human-salt-split-skin
#7
Nupur Goyal, Raghavendra Rao, Shrutakirthi D Shenoi, Sathish Pai, Pramod Kumar, Balbir S Bhogal, Enno Schmidt, Detlef Zillikens
BACKGROUND: Subepidermal autoimmune bullous diseases are a diverse group of diseases with overlapping clinical and immunopathological features. Indirect immunofluorescence microscopy on artificially split skin helps to classify these conditions into those with staining on the epidermal side of the split ("roof-binding") and those with staining on the dermal side ("floor-binding"). Epidermolysis bullosa acquisita is the prototype of "floor-binding" subepidermal autoimmune bullous diseases...
July 27, 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/28749245/advances-in-our-understanding-of-immunization-and-vaccines-for-patients-with-systemic-lupus-erythematosus
#8
Nicola Luigi Bragazzi, Abdulla Watad, Kassem Sharif, Mohammad Adawi, Gali Aljadeff, Howard Amital, Yehuda Shoenfeld
INTRODUCTION: Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune disease. In SLE, immune system dysfunction is postulated to result by virtue of the disease itself as well as by the impact of treatment modalities employed. A myriad of immune dysregulations occur including complement system dysfunction among others. Infectious agents are known to complicate the disease course in close to 25-45 % of SLE patients. METHODS: In this review a discussion of the immunogenicity and safety of viral and bacterial vaccinations in SLE was performed...
July 27, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28748901/renal-manifestations-in-hypocomplementic-urticarial-vasculitis-syndrome-is-it-a-distinct-pathology
#9
Badriya AlHermi, Zakiya Al Mosawi, Deena Mohammed
Hypocomplementic urticarial vasculitis syndrome (HUVS) is an autoimmune disease characterized by recurrent urticaria, arthritis, and glomerulonephritis (GN). Anti-C1q antibody is the marker of HUVS together with low levels of classical pathway complements which are C2, C3, C4, and C1q. We report a case of a 6-year-old boy who presented with episodes of rashes, injected conjunctiva, abdominal pain, and arthritis, diagnosed as HUVS. He had low C3, low CH50, normal C4, and positive C1q antibody. His urinalysis showed intermittent microscopic hematuria only...
July 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28748767/electrochemical-immunosensors-for-disease-detection-and-diagnosis
#10
Oana Hosu, Giulia Selvolini, Cecilia Cristea, Giovanna Marrazza
The detection of biological molecules referred as biomarkers in biological fluids is fundamental in clinical analysis because it permits to discriminate between healthy and ill individuals and to evaluate the progress of a disease. The ability to identify a disease at an early stage and/or with high precision is a primary element of successful therapeutic treatment, resulting in an improved life quality for individuals and in less social impact or cost of the health system. The development of immunosensors for the detection and monitoring of biomarkers is currently a major area of research and, as more markers are discovered and their role in disease becomes better understood, this will continue to grow...
July 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28748541/reliable-assessment-of-the-incidence-of-childhood-autoimmune-hemolytic-anemia
#11
Nathalie Aladjidi, Marthe-Aline Jutand, Cyrielle Beaubois, Helder Fernandes, Julien Jeanpetit, Gaelle Coureau, Véronique Gilleron, Aude Kostrzewa, Pierre Lauroua, Michel Jeanne, Rodolphe Thiébaut, Thierry Leblanc, Guy Leverger, Yves Perel
BACKGROUND: Childhood autoimmune hemolytic anemia (AIHA) is a rare and severe disease characterized by hemolysis and positive direct antiglobulin test (DAT). Few epidemiologic indicators are available for the pediatric population. The objective of our study was to reliably estimate the number of AIHA cases in the French Aquitaine region and the incidence of AIHA in patients under 18 years old. PROCEDURE: In this retrospective study, the capture-recapture method and log-linear model were used for the period 2000-2008 in the Aquitaine region from the following three data sources for the diagnosis of AIHA: the OBS'CEREVANCE database cohort, positive DAT collected from the regional blood bank database, and the French medico-economic information system...
July 27, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28748510/clinical-characteristics-of-autoimmune-rheumatic-disease-related-organizing-pneumonia
#12
Xin Dong, Yi Zheng, Li Wang, Wen-Hui Chen, Yun-Gang Zhang, Qiang Fu
To study the clinical characteristics of autoimmune rheumatic disease-related organizing pneumonia (AIRD-OP), the clinical presentation, radiological findings, treatment, and outcome of AIRD-OP patients were analyzed, in comparison with patients with cryptogenic organizing pneumonia (COP). A total of 131 OP patients were identified, including 57 cases of AIRD-OP, 35 cases of COP, and 39 cases of other disease-related OPs. Among AIRD-OP patients, 36 (63%) presented the symptoms of OP at onset. The primary disease of AIRDs included Sjogren's syndrome (38%), polymyositis/dermatomyositis (23%), rheumatoid arthritis (23%), and undifferentiated AIRD...
July 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28748509/clinical-characteristics-and-thrombosis-outcomes-of-paediatric-antiphospholipid-syndrome-analysis-of-58-patients
#13
Jingran Ma, Hongmei Song, Min Wei, Yanyan He
The study aims to analyse the clinical and immunological manifestations of paediatric antiphospholipid syndrome (APS) in patients, based on the 2006 revised classification criteria of definite APS. Fifty-eight paediatric patients with APS were enrolled and analysed retrospectively. A total of 37 female and 21 male patients with a mean age of 14 ± 3 years at disease onset were included. Fourteen (24%) cases were primary APS, and 40 (69%) cases were secondary to systemic lupus erythaematosus (SLE). Anti-nuclear antibody (ANA) positivity and hypocomplementemia were more common in secondary APS than in primary APS...
July 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28748449/first-report-of-persistent-dengue-1-associated-autoimmune-neurological-disturbance-neuromyelitis-optica-spectrum-disorder
#14
Marzia Puccioni-Sohler, Alice M M Ornelas, Andrea S de Souza, Mauro Jorge Cabral-Castro, Jessyca T M A Ramos, Carolina Rosadas, Maria Cecilia F Salgado, Alexandre A Castiglione, Fernando Ferry, Jose Mauro Peralta, Carolina Moreira Voloch, Amilcar Tanuri, Fernanda Tovar-Moll, Renato Santana Aguiar
Dengue virus (DENV) causes immune-mediated diseases. Neurological involvement represents a severe condition that is rarely observed in DENV-1 infection. Neuromyelitis optica (NMO)/NMO spectrum disorders (NMOSD) are idiopathic immune-mediated demyelinating syndromes of the central nervous system. We report a 17-year-old female with oligosymptomatic DENV-1 viremia, diagnosed as NMOSD. Magnetic resonance imaging showed spinal cord and brainstem lesions. Antibody for aquaporin 4 was negative. DENV-1 RNA infection was detected by serial RT-PCR and confirmed by phylogenetic analysis in serum...
July 26, 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/28748365/urticaria-and-angioedema-an-update-on-classification-and-pathogenesis
#15
REVIEW
Susanne Radonjic-Hoesli, Kathrin Scherer Hofmeier, Sara Micaletto, Peter Schmid-Grendelmeier, Andreas Bircher, Dagmar Simon
Urticaria is a common, mast cell-driven disease presenting with wheals or angioedema or both. In the last years, urticaria has increasingly attracted notice to clinicians and researchers, last but not least inspired by the approval of omalizumab, an anti-IgE antibody, for urticaria treatment. There is wide consensus on the clinical classification based on duration and elicitation. However, the pathogenesis is incompletely understood. This review summarizes current guidelines for the management and novel insights in the pathogenesis of urticaria with special focus on their impact on clinical praxis...
July 26, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28748310/long-term-outcome-of-adenosine-deaminase-deficient-patients-a-single-center-experience
#16
Ori Scott, Vy Hong-Diep Kim, Brenda Reid, Anne Pham-Huy, Adelle R Atkinson, Alessandro Aiuti, Eyal Grunebaum
PURPOSE: Inherited defects in the adenosine deaminase (ADA) enzyme can cause severe combined immune deficiency (SCID) and systemic abnormalities. Management options for ADA-deficient patients include enzyme replacement therapy (ERT), hematopoietic stem cell transplantation (HSCT), and gene therapy (GT). Here, we describe the long-term benefits of these treatments. METHODS: Survival, infections, systemic sequelae, and laboratory assessments were recorded for all ADA-deficient SCID patients, managed at a single center since 1985, who survived 5 or more years following treatment...
July 26, 2017: Journal of Clinical Immunology
https://www.readbyqxmd.com/read/28748216/t-cells-targeting-neuromyelitis-optica-autoantigen-aquaporin-4-cause-paralysis-and-visual-system-injury
#17
COMMENT
Andrés Cruz-Herranz, Sharon A Sagan, Raymond A Sobel, Ari J Green, Scott S Zamvil
Aquaporin-4 (AQP4)-specific antibodies are instrumental in promoting central nervous system (CNS) tissue injury in neuromyelitis optica (NMO), yet evidence indicates that AQP4-specific T cells also have a pivotal role in NMO pathogenesis. Although considerable effort has been devoted to creation of animal models to study how AQP4-specific T cells and antibodies may cooperate in development of both clinical and histologic opticospinal inflammatory disease, the initial attempts were unsuccessful. Recently, it was discovered that T cells from AQP4-deficient (AQP4(-/-)) mice recognize distinct AQP4 epitopes that were not identified previously in wild-type (WT) mice, and that donor Th17 cells from AQP4(-/-) mice that target those novel epitopes could cause paralysis and visual system injury associated with opticospinal inflammation in WT recipient mice...
May 2017: Journal of Nature and Science
https://www.readbyqxmd.com/read/28748203/thermal-stability-of-heterotrimeric-pmhc-proteins-as-determined-by-circular-dichroism-spectroscopy
#18
Anna Fuller, Aaron Wall, Michael D Crowther, Angharad Lloyd, Alexei Zhurov, Andrew K Sewell, David K Cole, Konrad Beck
T cell receptor (TCR) recognition of foreign peptide fragments, presented by peptide major histocompatibility complex (pMHC), governs T-cell mediated protection against pathogens and cancer. Many factors govern T-cell sensitivity, including the affinity of the TCR-pMHC interaction and the stability of pMHC on the surface of antigen presenting cells. These factors are particularly relevant for the peptide vaccination field, in which more stable pMHC interactions could enable more effective protection against disease...
July 5, 2017: Bio-protocol
https://www.readbyqxmd.com/read/28748115/physiological-functions-and-pathogenic-potential-of-uric-acid-a-review
#19
REVIEW
Rashika El Ridi, Hatem Tallima
Uric acid is synthesized mainly in the liver, intestines and the vascular endothelium as the end product of an exogenous pool of purines, and endogenously from damaged, dying and dead cells, whereby nucleic acids, adenine and guanine, are degraded into uric acid. Mentioning uric acid generates dread because it is the established etiological agent of the severe, acute and chronic inflammatory arthritis, gout and is implicated in the initiation and progress of the metabolic syndrome. Yet, uric acid is the predominant anti-oxidant molecule in plasma and is necessary and sufficient for induction of type 2 immune responses...
September 2017: Journal of Advanced Research
https://www.readbyqxmd.com/read/28748083/lactadherin-orthologs-inhibit-migration-of-human-porcine-and-murine-intestinal-epithelial-cells
#20
Steffen Nyegaard, Trine Andreasen, Jan Trige Rasmussen
Lactadherin was originally described due to its appearance in milk, but is abundantly expressed especially by professional and nonprofessional phagocytes. The proteins has been shown to have a multitude of bioactive effects, including inhibition of inflammatory phospholipases, induction of effero- and phagocytosis, prevent rotavirus induced gastroenteritis, and modulate intestinal homeostasis by regulating epithelial cell migration. The level of expression seems to be important in a row of serious pathologies linked to the intestinal epithelial barrier function, vascular- and autoimmune disease...
July 2017: Food Science & Nutrition
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