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https://www.readbyqxmd.com/read/28340077/idiopathic-non-lupus-full-house-nephropathy-is-associated-with-poor-renal-outcome
#1
Emilie C Rijnink, Y K Onno Teng, Tineke Kraaij, Ron Wolterbeek, Jan A Bruijn, Ingeborg M Bajema
Background.: Full-house immunofluorescence in combination with various histopathologic lesions in the renal biopsies of patients without overt systemic lupus erythematosus (SLE) poses a diagnostic challenge. In this setting, the biopsy findings are sometimes termed non-lupus 'full-house nephropathy' (FHN). It is presently unknown whether idiopathic non-lupus FHN is clinicopathologically and prognostically distinct from lupus FHN. Methods.: We included non-lupus FHN patients and lupus FHN controls (four or more American College of Rheumatology or Systemic Lupus International Collaborating Clinics criteria) who were biopsied between 1968 and 2014 at the Leiden University Medical Centre...
March 13, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339952/value-of-multidisciplinary-reassessment-in-attribution-of-neuropsychiatric-events-to-systemic-lupus-erythematosus-prospective-data-from-the-leiden-npsle-cohort
#2
César Magro-Checa, Els J Zirkzee, Liesbeth J J Beaart-van de Voorde, Huub A Middelkoop, Nic J van der Wee, Menno V Huisman, Jeroen Eikenboom, Nyika D Kruyt, Mark A van Buchem, Tom W J Huizinga, Gerda M Steup-Beekman
Objective.: To determine the contribution of reassessment in the attribution process of neuropsychiatric (NP) events to SLE or other aetiologies in a large, prospective and multidisciplinary assessed NPSLE cohort and to compare these results with other available attribution models for NP events occurring in SLE. Methods.: Three hundred and four consecutive SLE patients presenting NP events were evaluated. All subjects underwent standardized multidisciplinary medical, neuropsychological, laboratory and radiological examination on the inclusion and reassessment dates...
February 28, 2017: Rheumatology
https://www.readbyqxmd.com/read/28339366/jaccoud-s-arthropathy-in-systemic-lupus-erythematosus-clinical-laboratory-and-ultrasonographic-features
#3
Fulvia Ceccarelli, Laura Massaro, Carlo Perricone, Monica Pendolino, Enrica Cipriano, Simona Truglia, Francesca Miranda, Francesca Romana Spinelli, Cristiano Alessandri, Guido Valesini, Fabrizio Conti
OBJECTIVES: Jaccoud's arthropathy (JA) is a deforming, non-erosive arthritis, occurring in 2-35% of systemic lupus erythematosus (SLE) patients. We aimed to evaluate JA patients in a wide monocentric SLE cohort in terms of clinical, serological and ultrasonographic features. METHODS: Consecutive SLE patients (ACR criteria 1997) were evaluated. The JA index was applied for patients with reducible deformities. Patients with a JA index ≥5 underwent physical examination, blood testing and ultrasound (US) assessment...
March 23, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28331627/topical-drug-induced-subacute-cutaneous-lupus-erythematosus-isolated-to-the-hands
#4
Sarika M Ramachandran, Jonathan S Leventhal, Loren G Franco, Adnan Mir, Ruth F Walters, Andrew G Franks
Subacute cutaneous lupus erythematosus (SCLE) is a well-defined subtype of lupus erythematosus, characterised by photosensitivity, annular and/or psoriasiform lesions, variable systemic involvement and presence of circulating SSA/anti-Ro antibodies. SCLE may be idiopathic or drug-induced. Both the idiopathic and drug-induced forms of SCLE are analogous in their clinical, serological and histological features. Drug-induced SCLE has been reported with various oral agents, but to our knowledge this is the first reported case due to a topical medication...
2017: Lupus Science & Medicine
https://www.readbyqxmd.com/read/28329014/prediction-of-chronic-damage-in-systemic-lupus-erythematosus-by-using-machine-learning-models
#5
Fulvia Ceccarelli, Marco Sciandrone, Carlo Perricone, Giulio Galvan, Francesco Morelli, Luis Nunes Vicente, Ilaria Leccese, Laura Massaro, Enrica Cipriano, Francesca Romana Spinelli, Cristiano Alessandri, Guido Valesini, Fabrizio Conti
OBJECTIVE: The increased survival in Systemic Lupus Erythematosus (SLE) patients implies the development of chronic damage, occurring in up to 50% of cases. Its prevention is a major goal in the SLE management. We aimed at predicting chronic damage in a large monocentric SLE cohort by using neural networks. METHODS: We enrolled 413 SLE patients (M/F 30/383; mean age ± SD 46.3±11.9 years; mean disease duration ± SD 174.6 ± 112.1 months). Chronic damage was assessed by the SLICC/ACR Damage Index (SDI)...
2017: PloS One
https://www.readbyqxmd.com/read/28325905/evidence-for-c1q-mediated-crosslinking-of-cd33-lair-1-inhibitory-immunoreceptors-and-biological-control-of-cd33-lair-1-expression
#6
Myoungsun Son, Betty Diamond, Bruce T Volpe, Cynthia B Aranow, Meggan C Mackay, Frances Santiago-Schwarz
C1q collagen-like region (CLR) engaging and activating the LAIR-1 inhibitory immunoreceptor represents a non-complement mechanism for maintaining immune quiescence. Given the binding promiscuity of C1q's globular region (gC1q), we hypothesized that C1q concurrently associates with distinct inhibitory immunoreceptors to produce C1q-mediated modulatory networking. Like LAIR-1, CD33 inhibitory immunoreceptors are highly expressed on monocytes. Binding CD33 restricts cell activation/differentiation; however, natural ligands for CD33 remain elusive...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28320458/b-cell-epitope-of-human-cytomegalovirus-phosphoprotein-65-hcmv-pp65-induced-anti-dsdna-antibody-in-balb-c-mice
#7
Ao HoHsieh, Chin Man Wang, Yeong-Jian Jan Wu, Albert Chen, Ming-I Chang, Ji-Yih Chen
BACKGROUND: HCMV phosphoprotein 65 (HCMVpp65) is a putative immunogen that acts as an accelerator, inducing autoantibody and exacerbating autoimmune response in susceptible animals. The immunity to pp65336-439 instigates autoimmunity, suggesting that pp65336-439 contains crucial B cell epitope(s) for the development of nephritis. This study narrowed down the target epitope to pp65422-439 for immunization of BALB/c mice and mapping of B cell epitope. METHODS: The target epitope pp65422-439 reactivity and B cell epitope mapping was examined in serum from pp65422-439-immunized mice and patients with systemic lupus erythematosus (SLE)...
March 21, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28320046/increased-insulin-resistance-and-glucagon-levels-in-mild-inactive-systemic-lupus-patients-despite-normal-glucose-tolerance
#8
Cíntia Nh Miyake, Bruno Gualano, Wagner S Dantas, Renato T Pereira, William Neves, Vanessa O Zambelli, Samuel K Shinjo, Rosa M Pereira, Elizabeth R Silva, Ana Lúcia Sá-Pinto, Eduardo Borba, Hamilton Roschel, Eloisa Bonfá, Fabiana B Benatti
OBJECTIVE: To assess insulin sensitivity in patients with systemic lupus erythematosus (SLE) in response to a meal tolerance test (MTT). METHODS: In this cross-sectional study, 33 adult females mild/inactive SLE and 16 age- and body mass index (BMI)-matched female healthy controls (CTRL) underwent a MTT and were assessed for insulin sensitivity and beta-cell function. Skeletal muscle protein expressions of total and membrane GLUT-4 were also evaluated (SLE, n=10; CTRL, n=5); muscle biopsies were performed after MTT...
March 20, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28319545/systemic-lupus-erythematosus-is-associated-with-increased-adverse-postoperative-renal-outcomes-and-mortality-a-historical-cohort-study-using-administrative-health-data
#9
Rovnat Babazade, Huseyin Oguz Yilmaz, Steve M Leung, Nicole M Zimmerman, Alparslan Turan
BACKGROUND: Systemic lupus erythematosus (SLE) is a common autoimmune connective tissue disease that mainly harms kidneys, heart, lungs, and nervous system. Effects of surgical stimulus and anesthesia combined with SLE-related pathologies may increase morbidity and mortality. Therefore, we aimed to evaluate the association between SLE (versus none) and postoperative renal, cardiac, and in-hospital mortality complications among patients undergoing major surgeries. METHODS: We obtained censuses of 2009 to 2011 inpatient hospital discharges across 7 states and conducted a retrospective cohort study by using International Classification of Diseases and Injuries, Version 9, diagnosis codes, procedure codes, and present-on-admission indicators...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28299919/spontaneous-soft-tissue-haemorrhage-in-systemic-lupus-erythematosus
#10
M C Abdulla
Diversity in clinical presentations and complications of systemic lupus erythematosus (SLE) make the diagnosis and management challenging. The mechanisms of haemorrhagic manifestations in SLE have not been well elucidated. A 47-year-old woman with no comorbidities was admitted after suffering fatigue and low grade fever for six months. She had bilateral soft tissue haemorrhage over the forearm and intra retinal haemorrhages. She was assessed and diagnosed as having SLE based on positive antinuclear antibody, strongly positive anti double stranded DNA, thrombocytopenia and low C3 and C4 levels...
December 31, 2016: Reumatismo
https://www.readbyqxmd.com/read/28297699/value-of-microperimetry-in-detecting-early-retinal-toxicity-of-hydroxychloroquine-in-children-with-juvenile-systemic-lupus-erythematosus
#11
Maha M Youssef, Dina El-Fayoumi, Mohamed Karim Sidky, Ahmed I Hegazy, Huda Marzouk, Rasha M Eltanamly
PURPOSE: To evaluate retinal sensitivity in children who are on hydroxychloroquine (HCQ) for systemic lupus erythematosus using microperimetry and compare the results with those of the Humphrey visual field (HVF) 10-2 and spectral-domain optical coherence tomography (SD-OCT). PROCEDURE: A case-control cross-sectional study including 19 patients (less than 18 years old) on HCQ for at least 5 years. Controls were 21 normal children. Participants underwent a complete ophthalmic examination, then were investigated using HVF 10-2, SD-OCT, and microperimetry...
March 16, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28289186/multiple-signals-at-the-extended-8p23-locus-are-associated-with-susceptibility-to-systemic-lupus-erythematosus
#12
F Yesim Demirci, Xingbin Wang, David L Morris, Eleanor Feingold, Sasha Bernatsky, Christian Pineau, Ann Clarke, Rosalind Ramsey-Goldman, Susan Manzi, Timothy J Vyse, M Ilyas Kamboh
BACKGROUND: A major systemic lupus erythematosus (SLE) susceptibility locus lies within a common inversion polymorphism region (encompassing 3.8 - 4.5  Mb) located at 8p23. Initially implicated genes included FAM167A-BLK and XKR6, of which BLK received major attention due to its known role in B-cell biology. Recently, additional SLE risk carried in non-inverted background was also reported. OBJECTIVE AND METHODS: In this case -control study, we further investigated the 'extended' 8p23 locus (~ 4  Mb) where we observed multiple SLE signals and assessed these signals for their relation to the inversion affecting this region...
March 13, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28283529/targeting-the-rhoa-rock-pathway-to-reverse-t-cell-dysfunction-in-sle
#13
Cristina Rozo, Yurii Chinenov, Reena Khianey Maharaj, Sanjay Gupta, Laura Leuenberger, Kyriakos A Kirou, Vivian P Bykerk, Susan M Goodman, Jane E Salmon, Alessandra B Pernis
OBJECTIVES: Deregulated production of interleukin (IL)-17 and IL-21 contributes to the pathogenesis of autoimmune disorders such as systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). Production of IL-17 and IL-21 can be regulated by ROCK2, one of the two Rho kinases. Increased ROCK activation was previously observed in an SLE cohort. Here, we evaluated ROCK activity in a new SLE cohort, and an RA cohort, and assessed the ability of distinct inhibitors of the ROCK pathway to suppress production of IL-17 and IL-21 by SLE T cells or human Th17 cells...
April 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28282061/hydroxychloroquine-retinopathy
#14
REVIEW
I H Yusuf, S Sharma, R Luqmani, S M Downes
Hydroxychloroquine (HCQ; Plaquenil) is used increasingly in the management of a variety of autoimmune disorders, with well established roles in dermatology and rheumatology and emerging roles in oncology. Hydroxychloroquine has demonstrated a survival benefit in patients with systemic lupus erythematosus; some clinicians advocate its use in all such patients. However, Hydroxychloroquine and chloroquine (CQ) have been associated with irreversible visual loss due to retinal toxicity. Hydroxychloroquine retinal toxicity is far more common than previously considered; an overall prevalence of 7...
March 10, 2017: Eye
https://www.readbyqxmd.com/read/28279836/autologous-hematopoietic-stem-cell-transplantation-in-systemic-lupus-erythematosus-and-antiphospholipid-syndrome-a-systematic-review
#15
REVIEW
Alessia Leone, Massimo Radin, Ahlam M Almarzooqi, Jamal Al-Saleh, Dario Roccatello, Savino Sciascia, Munther Khamashta
BACKGROUND: Hematopoietic stem cell transplantation (HSCT) has been proposed as a therapeutic option for patients with Systemic Lupus Erythematosus (SLE) refractory to standard therapy. This therapeutic approach has been applied to other severe autoimmune diseases refractory to standard therapy with promising results. AIM: To systematically review the literature and analyze the available evidence on HSCT therapy in patients with SLE and antiphospholipid syndrome (APS), with a focus on therapy efficacy and occurrence of adverse events...
March 7, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28278279/toll-like-receptor-9-suppresses-lupus-disease-in-fas-sufficient-mrl-mice
#16
Kevin M Nickerson, Yujuan Wang, Sheldon Bastacky, Mark J Shlomchik
Genetic deficiency in TLR9 accelerates pathogenesis in the spontaneous polygenic MRL.Faslpr murine model of systemic lupus erythematosus, despite the absence of anti-nucleosome autoantibodies. However, it could be argued that this result was dependent on Fas-deficiency rather than lupus-promoting genes in the MRL genetic background. Here we report the effects of TLR9 deficiency on autoimmune disease independent of the lpr mutation in Fas by characterizing Tlr9-/- and Tlr9+/+ mice on the Fas-intact MRL/+ genetic background...
2017: PloS One
https://www.readbyqxmd.com/read/28275260/beyond-tnf-tnf-superfamily-cytokines-as-targets-for-the-treatment-of-rheumatic-diseases
#17
REVIEW
Michael Croft, Richard M Siegel
TNF blockers are highly efficacious at dampening inflammation and reducing symptoms in rheumatic diseases such as rheumatoid arthritis, psoriatic arthritis and ankylosing spondylitis, and also in nonrheumatic syndromes such as inflammatory bowel disease. As TNF belongs to a superfamily of 19 structurally related proteins that have both proinflammatory and anti-inflammatory activity, reagents that disrupt the interaction between proinflammatory TNF family cytokines and their receptors, or agonize the anti-inflammatory receptors, are being considered for the treatment of rheumatic diseases...
April 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28274793/pkk-deficiency-in-b-cells-prevents-lupus-development-in-sle-lupus-mice
#18
D Oleksyn, J Zhao, A Vosoughi, J C Zhao, R Misra, A P Pentland, D Ryan, J Anolik, C Ritchlin, J Looney, A P Anandarajah, G Schwartz, L M Calvi, M Georger, C Mohan, I Sanz, L Chen
Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by the production of autoantibodies that can result in damage to multiple organs. It is well documented that B cells play a critical role in the development of the disease. We previously showed that protein kinase C associated kinase (PKK) is required for B1 cell development as well as for the survival of recirculating mature B cells and B-lymphoma cells. Here, we investigated the role of PKK in lupus development in a lupus mouse model...
March 6, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28270202/rheumatology-in-africa-challenges-and-opportunities
#19
EDITORIAL
Girish M Mody
Africa faces many health challenges despite sustained growth and development over the past decade. Contributory factors are the lack of financial resources, an inadequate health professional workforce, a high burden of communicable diseases, and an increasing burden of non-communicable diseases. Rheumatology services are limited or non-existent in many parts of sub-Saharan Africa. Over the past decade, partnerships with international academic institutions have resulted in some progress in the training of rheumatologists and health professionals and development of rheumatology services in countries such as Kenya, Nigeria, and Zambia...
March 7, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28265848/apol1-and-the-immune-response-of-patients-with-systemic-lupus-erythematosus
#20
REVIEW
Ashira D Blazer, Robert M Clancy
PURPOSE OF REVIEW: Systemic lupus erythematosus (SLE) confers up to a 50-fold increased risk of cardiovascular disease (CVD), and African Americans with SLE experience accelerated damage accrual and doubled cardiovascular risk when compared to their European American counterparts. RECENT FINDINGS: Genome-wide association studies have identified a substantial signal at 22q13, now assigned to variation at apolipoprotein L1 (APOL1), which has associated with progressive nondiabetic nephropathy, cardiovascular disease, and many immune-associated renal diseases, including lupus nephritis...
March 2017: Current Rheumatology Reports
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