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Different types of lupus

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https://www.readbyqxmd.com/read/28334051/dissecting-the-relationships-of-igg-subclasses-and-complements-in-membranous-lupus-nephritis-and-idiopathic-membranous-nephropathy
#1
Woong Na, Kijong Yi, Young Soo Song, Moon Hyang Park
Membranous lupus nephritis (MLN) and idiopathic membranous nephropathy (IMN) are kidney diseases with similar morphology, but distinct etiologies, both producing glomeruli with immune deposits. Immunoglobulins and complements, the main components of the deposits, can be detected by immunofluorescence (IF) microscopy. Previous researches characterized the immune deposits only individually, but not the interactions between them. To study these relationships we analyzed an IF profile of IgG subclasses and complements (IgG1, IgG2, IgG3, IgG4, C3, C1q, and C4) in 53 and 95 cases of biopsy-confirmed MLNs and IMNs, respectively, mainly using information theory and Bayesian networks...
2017: PloS One
https://www.readbyqxmd.com/read/28302338/-laboratory-diagnosis-of-antiphospholipid-syndrome-from-criteria-to-practice
#2
V Joste, M-A Dragon-Durey, L Darnige
The antiphospholipid syndrome is a bioclinical entity defined by thrombosis and/or obstetrical complications in the presence, at least 12 weeks apart, of antiphospholipid antibodies detected by coagulation test (lupus anticoagulant) or immunological assays (anticardiolipin, anti-β2-glycoprotein I antibodies). Biological markers' improvement such as anti-phosphatidylserine/prothrombin and biological score should allow better patients' management and preventive therapeutic for thrombosis and obstetrical complications...
March 14, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28284231/support-for-phosphoinositol-3-kinase-and-mtor-inhibitors-as-treatment-for-lupus-using-in-silico-drug-repurposing-analysis
#3
Daniel Toro-Domínguez, Pedro Carmona-Sáez, Marta E Alarcón-Riquelme
BACKGROUND: Systemic lupus erythematosus (SLE) is an autoimmune disease with few treatment options. Current therapies are not fully effective and show highly variable responses. In this regard, large efforts have focused on developing more effective therapeutic strategies. Drug repurposing based on the comparison of gene expression signatures is an effective technique for the identification of new therapeutic approaches. Here we present a drug-repurposing exploratory analysis using gene expression signatures from SLE patients to discover potential new drug candidates and target genes...
March 11, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28283766/autoantibodies-to-types-i-and-iv-collagen-and-heart-valve-disease-in-systemic-lupus-erythematosus-antiphospholipid-syndrome
#4
José Pardos-Gea, Josefina Cortés-Hernández, Jesus Castro-Marrero, Eva Balada, José Ordi-Ros
Introduction/objectives autoantibodies to types I and IV collagen have been described in rheumatic fever and infective endocarditis. We tried to elucidate if an autoimmune response against collagens I and IV exists, associated with heart valve disease in systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS). A cohort of 172 patients with SLE (n = 79), primary APS (PAPS, n = 83), and secondary APS (n = 10) were assessed for valvulopathy by transthoracic echocardiograms. Autoantibodies to types I and IV collagen were assessed in patients and 50 controls, setting autoantibody positivity at two standard deviations above the mean antibody level of controls...
March 10, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28274360/the-red-face-not-always-rosacea
#5
Clio Dessinioti, Christina Antoniou
Facial erythema (the "red face") is a straightforward clinical finding, and it is evident even to the untrained eye; however, a red face does not represent a single cutaneous entity. It may be due to a plethora of distinct underlying conditions of varying severity, including rosacea, demodicosis, dermatomyositis, lupus erythematosus, allergic contact dermatitis, drug-induced erythema, and emotional blushing. In clinical practice, dermatologists do not encounter only one type of facial erythema but rather a number of different shades of red...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28243457/disease-activity-patterns-over-time-in-patients-with-sle-analysis-of-the-hopkins-lupus-cohort
#6
Noémi Györi, Ioanna Giannakou, Katerina Chatzidionysiou, Laurence Magder, Ronald F van Vollenhoven, Michelle Petri
OBJECTIVE: To describe SLE disease activity patterns in the Hopkins Lupus Cohort. METHODS: Disease activity was studied in 1886 patients followed-up for 1-28 years. Disease activity patterns were defined using (1) Physician Global Assessment (PGA) and (2) modified SLE Disease Activity Index (M-SLEDAI) as follows: long quiescent (LQ), M-SLEDAI=0/PGA=0 at all visits; relapsing-remitting (RR), periods of activity (M-SLEDAI>0/PGA>0) interspersed with inactivity (M-SLEDAI=0/PGA=0); chronic active (CA), M-SLEDAI>0/PGA>0 at all visits...
2017: Lupus Science & Medicine
https://www.readbyqxmd.com/read/28237724/the-common-autoimmunity-predisposing-620arg%C3%A2-%C3%A2-trp-variant-of-ptpn22-modulates-macrophage-function-and-morphology
#7
Meihang Li, Hugues Beauchemin, Natalija Popovic, Alan Peterson, Eva d'Hennezel, Ciriaco A Piccirillo, Chao Sun, Constantin Polychronakos
The C1858T single nucleotide polymorphism (SNP) in PTPN22 (protein tyrosine phosphatase nonreceptor 22) leads to the 620 Arg to Trp polymorphism in its encoded human protein LYP. This allelic variant is associated with multiple autoimmune diseases, including type 1 diabetes (T1D), Crohn's disease, rheumatoid arthritis and systemic lupus erythematosus. However, the underlying mechanisms are poorly understood. To study how this polymorphism influences the immune system, we generated a mouse strain with a knock-in of the Trp allele, imitating the human disease-associated variant...
February 22, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28216098/potential-influences-of-complement-factor-h-in-autoimmune-inflammatory-and-thrombotic-disorders
#8
Janez Ferluga, Lubna Kouser, Valarmathy Murugaiah, Robert B Sim, Uday Kishore
Complement system homeostasis is important for host self-protection and anti-microbial immune surveillance, and recent research indicates roles in tissue development and remodelling. Complement also appears to have several points of interaction with the blood coagulation system. Deficiency and altered function due to gene mutations and polymorphisms in complement effectors and regulators, including Factor H, have been associated with familial and sporadic autoimmune inflammatory - thrombotic disorders, in which autoantibodies play a part...
February 16, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28205620/association-between-c4-c4a-and-c4b-copy-number-variations-and-susceptibility-to-autoimmune-diseases-a-meta-analysis
#9
Na Li, Jun Zhang, Dan Liao, Lu Yang, Yingxiong Wang, Shengping Hou
Although several studies have investigated the association between C4, C4A, and C4B gene copy number variations (CNVs) and susceptibility to autoimmune diseases, the results remain inconsistency for those diseases. Thus, in this study, a comprehensive meta-analysis was conducted to assess the role of C4, C4A, and C4B CNVs in autoimmune diseases in different ethnic groups. A total of 16 case-control studies described in 12 articles (8663 cases and 11099 controls) were included in this study. The pooled analyses showed that a low C4 gene copy number (GCN) (<4) was treated as a significant risk factor (odds ratio [OR] = 1...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28192517/neutrophils-and-neutrophil-serine-proteases-are-increased-in-the-spleens-of-estrogen-treated-c57bl-6-mice-and-several-strains-of-spontaneous-lupus-prone-mice
#10
Rujuan Dai, Catharine Cowan, Bettina Heid, Deena Khan, Zhihong Liang, Christine T N Pham, S Ansar Ahmed
Estrogen, a natural immunomodulator, regulates the development and function of diverse immune cell types. There is now renewed attention on neutrophils and neutrophil serine proteases (NSPs) such as neutrophil elastase (NE), proteinase 3 (PR3), and cathepsin G (CG) in inflammation and autoimmunity. In this study, we found that although estrogen treatment significantly reduced total splenocytes number, it markedly increased the splenic neutrophil absolute numbers in estrogen-treated C57BL/6 (B6) mice when compared to placebo controls...
2017: PloS One
https://www.readbyqxmd.com/read/28168661/psoriasis-in-systemic-lupus-erythematosus-a-single-center-experience
#11
Konstantinos Tselios, Kristy Su-Ying Yap, Rattapol Pakchotanon, Ari Polachek, Jiandong Su, Murray B Urowitz, Dafna D Gladman
The coexistence of psoriasis with systemic lupus erythematosus (SLE) has been reported in limited case series, raising hypotheses about shared pathogenetic mechanisms. Nevertheless, important differences regarding treatment do exist. The aim of the present study was to determine the prevalence and characteristics of psoriasis in a defined cohort of lupus patients. Patients with psoriasis were retrieved from the University of Toronto Lupus Clinic from its inception in 1970 up to 2015. Charts were hand-searched to collect information concerning demographic, clinical, and therapeutic variables...
February 6, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28162159/-the-value-of-different-antibodies-detection-in-diagnosis-of-rheumatism-with-uveitis
#12
X F Xu, J Zhang, L Cui, Y H Wang, Y Yue, L Chi, J Bai, H M Li, X X Lu
Objective: To investigate the value of HLA-B27 antigen, antinuclear antibody (ANA), anti-dsDNA and Anti-Neutrophil Cytoplasmic Antibodies (ANCA) detection in diagnosis of rheumatism with uveitis. Methods: Seven hundred and twenty four newly diagnosed patients with non-infection uveitis in Beijing Tongren Hospital from March 2012 to March 2016 who long-term lived in Beijing and its surrounding areas were continuously enrolled. HLA-B27 antigen expressions in peripheral blood lymphocytes and ANA, anti-dsDNA and ANCA levels in serum were tested...
January 24, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28154472/autoantibodies-to-nr2a-peptide-of-the-glutamate-nmda-receptor-in-patients-with-seizure-disorders-in-neuropsychiatric-systemic-lupus-erythematosus
#13
Yan Yang, Chao Yuan, Shu-Qun Shen, Xue-Er Wang, Qing-Hua Mei, Wen-Qing Jiang, Qin Huang
Objective. Seizure disorders are one of the most disabling, life-threatening, and the least understood syndromes associated with neuropsychiatric SLE (NPSLE). N-Methyl-D-aspartate (NMDA) receptors are a subgroup of the glutamate receptor family, whose NR2A subunit was found on neuronal cells (anti-NR2A) in NPSLE patients with different types of epilepsy. The present study was conducted to determine the serum levels of anti-NR2A antibodies in a large group of SLE patients, to investigate the possible correlation between the presence of the NR2A specific antibodies and NPSLE-related seizure disorders...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28143550/spectrum-of-paediatric-rheumatic-diseases-in-nigeria
#14
Babatunde Hakeem Olaosebikan, Olufemi Oladipo Adelowo, Barakat Adeola Animashaun, Richard Oluyinka Akintayo
BACKGROUND: Paediatric rheumatology service in Sub-Sahara African is virtually not available as there is a shortage of paediatric rheumatologists and other rheumatology health professionals. We aim to describe the clinical spectrum and the frequencies of paediatric rheumatic diseases (PRDs) in Lagos State University Teaching Hospital (LASUTH), Lagos, Nigeria. METHODS: This is a retrospective review of patients with PRDs seen over a five year period (March 2010 to February 2016) at the rheumatology clinic and children ward of LASUTH...
January 31, 2017: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/28131186/neuroimaging-features-in-posterior-reversible-encephalopathy-syndrome-a-pictorial-review
#15
REVIEW
Morgan Ollivier, Anne Bertrand, Frédéric Clarençon, Sophie Gerber, Sandrine Deltour, Fanny Domont, Stéphanie Trunet, Didier Dormont, Delphine Leclercq
Posterior reversible encephalopathy syndrome (PRES) is a radioclinical entity associating nonspecific neurological symptoms (headache, seizures, impairment of alertness, visual disturbances…) occurring in evocative clinical condition (hypertension, eclampsia, immunosuppressor agents, systemic lupus erythematosus…). In the acute stage, the typical imaging finding is a vasogenic edema predominant in the subcortical parietal-occipital white matter. The purpose of this pictorial review is to illustrate the different neuroimaging features of PRES and present key radiological elements to assert diagnosis...
February 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28130494/oxidized-low-density-lipoprotein-immune-complex-priming-of-the-nlrp3-inflammasome-involves-tlr-and-fc%C3%AE-r-cooperation-and-is-dependent-on-card9
#16
Jillian P Rhoads, John R Lukens, Ashley J Wilhelm, Jared L Moore, Yanice Mendez-Fernandez, Thirumala-Devi Kanneganti, Amy S Major
Oxidized low-density lipoprotein (oxLDL) is known to activate inflammatory responses in a variety of cells, especially macrophages and dendritic cells. Interestingly, much of the oxLDL in circulation is complexed to Abs, and these resulting immune complexes (ICs) are a prominent feature of chronic inflammatory disease, such as atherosclerosis, type-2 diabetes, systemic lupus erythematosus, and rheumatoid arthritis. Levels of oxLDL ICs often correlate with disease severity, and studies demonstrated that oxLDL ICs elicit potent inflammatory responses in macrophages...
March 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28127155/the-histone-modification-code-in-the-pathogenesis-of-autoimmune-diseases
#17
REVIEW
Yasuto Araki, Toshihide Mimura
Autoimmune diseases are chronic inflammatory disorders caused by a loss of self-tolerance, which is characterized by the appearance of autoantibodies and/or autoreactive lymphocytes and the impaired suppressive function of regulatory T cells. The pathogenesis of autoimmune diseases is extremely complex and remains largely unknown. Recent advances indicate that environmental factors trigger autoimmune diseases in genetically predisposed individuals. In addition, accumulating results have indicated a potential role of epigenetic mechanisms, such as histone modifications, in the development of autoimmune diseases...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28116413/using-actigraphy-and-mhealth-systems-for-an-objective-analysis-of%C3%A2-sleep-quality-on-systemic-lupus-erythematous-patients
#18
Sara Balderas-Díaz, M Pilar Martínez, Gabriel Guerrero-Contreras, Elena Miró, Kawtar Benghazi, Ana I Sánchez, José Luis Garrido, Germán Prados
INTRODUCTION: Although sleep alterations can be an important factor contributing to the clinical state of Systemic Lupus Erythematosus, there are no studies to adequately assess sleep quality in this type of disease. OBJECTIVES: The aim of this work is to analyse the sleep quality of Systemic Lupus Erythematous (SLE) patients based on more objective information provided by actigraphy and mobile systems. The idea is to carry out a comprehensive study by analysing how environmental conditions and factors can affect sleep quality...
January 24, 2017: Methods of Information in Medicine
https://www.readbyqxmd.com/read/28074867/the-role-of-macrophages-in-the-susceptibility-of-fc-gamma-receptor-iib-deficient-mice-to-cryptococcus-neoformans
#19
Saowapha Surawut, Thunnicha Ondee, Sujittra Taratummarat, Tanapat Palaga, Prapaporn Pisitkun, Ariya Chindamporn, Asada Leelahavanichkul
Dysfunctional polymorphisms of FcγRIIb, an inhibitory receptor, are associated with Systemic Lupus Erythaematosus (SLE). Cryptococcosis is an invasive fungal infection in SLE, perhaps due to the de novo immune defect. We investigated cryptococcosis in the FcγRIIb-/- mouse-lupus-model. Mortality, after intravenous C. neoformans-induced cryptococcosis, in young (8-week-old) and older (24-week-old) FcγRIIb-/- mice, was higher than in age-matched wild-types. Severe cryptococcosis in the FcγRIIb-/- mice was demonstrated by high fungal burdens in the internal organs with histological cryptococcoma-like lesions and high levels of TNF-α and IL-6, but not IL-10...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28072955/-clinical-analysis-of-12-patients-with-pediatric-antiphospholipid-syndrome-with-pulmonary-embolism
#20
J R Ma, H M Song, J Xiao, X Y Tang, Y Y He, M Wei
Objective: To identify the clinical and immunological characteristics of pediatric antiphospholipid syndrome (APS) patients with pulmonary embolism. Method: Among 47 pediatric APS patients from Peking Union Medical College Hospital during the year of 2000 to 2015, 12 patients were diagnosed of pulmonary embolism, who were investigated and compared with APS patients without pulmonary embolism. Result: Twelve patients (among whom 6 cases were primary and the other 6 were secondary APS)had pulmonary embolism and all of them were non-shock type, which was the first presenting manifestation in 6 of them...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
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