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https://www.readbyqxmd.com/read/28541299/antinuclear-antibody-testing-misunderstood-or-misbegotten
#1
REVIEW
David S Pisetsky
Antinuclear antibodies (ANAs) are a diverse group of autoantibodies that recognize nuclear macromolecules and their complexes. ANAs represent key biomarkers in the evaluation of rheumatic diseases, most prominently systemic lupus erythematosus (SLE), and ANA testing is commonly performed in the clinical setting. In addition, ANA testing is now used to assess eligibility for participation in clinical trials of new therapeutic agents for SLE. ANAs can be assayed by various techniques, with the fluorescent ANA assay often viewed as the gold standard...
May 25, 2017: Nature Reviews. Rheumatology
https://www.readbyqxmd.com/read/28520682/progress-in-the-pathogenesis-and-treatment-of-cardiac-manifestations-of-neonatal-lupus
#2
Peter Izmirly, Amit Saxena, Jill P Buyon
PURPOSE OF REVIEW: To provide new insights into pathogenesis, prevention and management of cardiac manifestations of neonatal lupus (cardiac neonatal lupus) and issues pertinent to all anti-SSA/Ro positive individuals of childbearing age. RECENT FINDINGS: Antibody specificity with high risk for cardiac neonatal lupus remains elusive, but high titers of Ro60, Ro52 or Ro52p200 antibodies appear to be required. Varying antibody specificities to the p200 region of Ro52 can induce first-degree block in a rodent model...
May 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28508528/competing-risks-model-in-screening-for-preeclampsia-in-twin-pregnancies-by-maternal-characteristics-and-medical-history
#3
Carla Francisco, David Wright, Zsófia Benkő, Argyro Syngelaki, Kypros H Nicolaides
OBJECTIVE: A survival-time regression model for the gestational age at delivery with preeclampsia (PE) in singleton pregnancies using maternal demographic characteristics and medical history was previously reported. The objective of this paper is to extend this model for dichorionic (DC) and monochorionic (MC) twin pregnancies. METHODS: The study population included 1,789 DC and 430 MC twin pregnancies and 93,297 singleton pregnancies. A survival-time model for the gestational age at delivery with PE was developed from variables of maternal characteristics and history...
May 15, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28474961/urine-peptidomic-biomarkers-for-diagnosis-of-patients-with-systematic-lupus-erythematosus
#4
M Pejchinovski, J Siwy, W Mullen, H Mischak, M A Petri, L C Burkly, R Wei
Background Systematic lupus erythematosus (SLE) is characterized with various complications which can cause serious organ damage in the human body. Despite the significant improvements in disease management of SLE patients, the non-invasive diagnosis is entirely missing. In this study, we used urinary peptidomic biomarkers for early diagnosis of disease onset to improve patient risk stratification, vital for effective drug treatment. Methods Urine samples from patients with SLE, lupus nephritis (LN) and healthy controls (HCs) were analyzed using capillary electrophoresis coupled to mass spectrometry (CE-MS) for state-of-the-art biomarker discovery...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28470479/epigenetic-variability-in-systemic-lupus-erythematosus-what-we-learned-from-genome-wide-dna-methylation-studies
#5
REVIEW
Maria Teruel, Amr H Sawalha
PURPOSE OF REVIEW: DNA methylation has emerged as an important contributing factor in the pathogenesis of systemic lupus erythematosus (SLE). Here, we describe the DNA methylation patterns identified in SLE and how these epigenetic changes can influence disease susceptibility, clinical heterogeneity, and disease flares. RECENT FINDINGS: Several genome-wide DNA methylation studies have been recently completed in SLE. Important observations include robust demethylation of interferon-regulated genes, which is consistent across all cell types studied to date, and is independent of disease activity...
June 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28469080/single-cell-rna-sequencing-to-dissect-the-molecular-heterogeneity-in-lupus-nephritis
#6
Evan Der, Saritha Ranabothu, Hemant Suryawanshi, Kemal M Akat, Robert Clancy, Pavel Morozov, Manjunath Kustagi, Mareike Czuppa, Peter Izmirly, H Michael Belmont, Tao Wang, Nicole Jordan, Nicole Bornkamp, Janet Nwaukoni, July Martinez, Beatrice Goilav, Jill P Buyon, Thomas Tuschl, Chaim Putterman
Lupus nephritis is a leading cause of mortality among systemic lupus erythematosus (SLE) patients, and its heterogeneous nature poses a significant challenge to the development of effective diagnostics and treatments. Single cell RNA sequencing (scRNA-seq) offers a potential solution to dissect the heterogeneity of the disease and enables the study of similar cell types distant from the site of renal injury to identify novel biomarkers. We applied scRNA-seq to human renal and skin biopsy tissues and demonstrated that scRNA-seq can be performed on samples obtained during routine care...
May 4, 2017: JCI Insight
https://www.readbyqxmd.com/read/28467291/clinical-associations-of-proinflammatory-cytokines-oxidative-biomarkers-and-vitamin-d-levels-in-systemic-lupus-erythematosus
#7
R Willis, M Smikle, K DeCeulaer, Z Romay-Penabad, E Papalardo, P Jajoria, B Harper, V Murthy, M Petri, E B Gonzalez
Background The abnormal biological activity of cytokines plays an important role in the pathophysiology of both systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS). Several studies have highlighted the association of vitamin D and certain pro-inflammatory cytokines with disease activity in SLE. However, there are limited data on the association of vitamin D and antiphospholipid antibodies (aPL) with various proinflammatory biomarkers in these patients and their relative impact on clinical outcomes...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28465078/joint-involvement-in-systemic-lupus-erythematosus-from-pathogenesis-to-clinical-assessment
#8
REVIEW
Fulvia Ceccarelli, Carlo Perricone, Enrica Cipriano, Laura Massaro, Francesco Natalucci, Giuseppe Capalbo, Ilaria Leccese, Dimitrios Bogdanos, Francesca Romana Spinelli, Cristiano Alessandri, Guido Valesini, Fabrizio Conti
OBJECTIVE: In the present review, the different phenotypes, clinimetric and imaging tools able to assess joint involvement in patients affected by Systemic Lupus Erythematosus (SLE) have been described and summarized. Furthermore, the current knowledge about the pathogenic mechanism and the potential biomarkers of this feature is reported. METHODS: A literature search was done in PubMed, accessed via the National Library of Medicine PubMed interface (http://www...
April 4, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/28428030/complement-inhibition-with-eculizumab-for-thrombotic-microangiopathy-rescues-a-living-donor-kidney-transplant-in-a-patient-with-antiphospholipid-antibody-syndrome
#9
Praveen Ramakrishnan Geethakumari, Patrick Mille, Rakesh Gulati, Srikanth Nagalla
Antiphospholipid antibody syndrome (APS) is an enigmatic heterogeneous disorder despite several revelations in its pathobiology. Renal transplantation in patients with APS has been notoriously difficult due to the high risk of development of thrombotic microangiopathy (TMA), which is often refractory to conventional treatment modalities such as aggressive anticoagulation and plasmapheresis. We describe a case of a 58-year-old male with secondary APS undergoing living unrelated renal transplantation for end-stage renal disease from lupus nephritis...
March 10, 2017: Transfusion and Apheresis Science
https://www.readbyqxmd.com/read/28423570/identification-of-long-non-coding-rnas-gas5-linc0597-and-lnc-dc-in-plasma-as-novel-biomarkers-for-systemic-lupus-erythematosus
#10
Guo-Cui Wu, Jun Li, Rui-Xue Leng, Xiang-Pei Li, Xiao-Mei Li, De-Guang Wang, Hai-Feng Pan, Dong-Qing Ye
Despite increasing evidence that long non-coding RNAs (lncRNAs) widely take part in human diseases, the role of lncRNAs in systemic lupus erythematosus (SLE) is largely unknown. In this study, we performed a two-stage study to explore the plasma levels of five lncRNAs (GAS5, linc0949, linc0597, HOTAIRM1 and lnc-DC) and their potential as SLE biomarkers. Compared with healthy controls, plasma levels of GAS5 and lnc-DC were significantly decreased (P < 0.001 and P = 0.002, respectively) while linc0597 were overexpressed in SLE patients (P < 0...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420072/reduction-of-nitric-oxide-and-dna-rna-oxidation-products-are-associated-with-active-disease-in-systemic-lupus-erythematosus-patients
#11
T M V Iriyoda, N Stadtlober, M A B Lozovoy, F Delongui, N T Costa, E M V Reiche, I Dichi, A N C Simão
The aims of the present study were to evaluate biomarkers of oxidative and nitrosative stress in systemic lupus erythematosus (SLE) patients, in particular products of DNA/RNA oxidative damage and their correlation with disease activity. This study included 188 controls and 203 patients; 153 with inactive SLE (SLEDAI < 6) and 50 with active SLE (SLEDAI ≥ 6) without renal impairment. Oxidative stress was assessed by tert-butyl hydroperoxide-initiated by chemiluminescence, advanced oxidation protein products (AOPP), total radical-trapping antioxidant parameter (TRAP), nitric oxide metabolites (NOx), and DNA/RNA oxidation products...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28420061/metabolic-profiling-reveals-new-serum-biomarkers-of-lupus-nephritis
#12
J Li, X-W Xie, H Zhou, B Wang, M-J Zhang, F-Y Tang
Metabolomics has been applied to explore altered metabolite profiles in disease and identify unique metabolic signatures specific to certain pathologies. The aim of the current study is to characterize the metabolic profile of patients diagnosed with lupus nephritis (LN) and explore new insights into underlying disease processes. A metabolomic approach using ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS) was developed in serum samples from 32 LN patients, 30 idiopathic nephrotic syndrome (INS) patients and 28 healthy controls (HCs)...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28417151/a-review-of-the-role-and%C3%A2-clinical-utility-of-anti-ro52-trim21-in-systemic-autoimmunity
#13
REVIEW
Adrian Y S Lee
Anti-Ro52/tripartite motif-containing 21 (TRIM21) is a ubiquitous antibody found in a number of systemic autoimmune conditions including Sjögren's syndrome, systemic lupus erythematosus and systemic sclerosis, appearing in about half of these patients. Once coupled with its closely related antibody, anti-Ro60 as the anti-SSA antibody, anti-Ro52 is emerging as a unique antibody with direct pathogenic disease involvement and distinct clinical properties. As a result, recent attention has turned to this antibody and its clinical associations and utility...
April 17, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28413615/mean-platelet-volume-mpv-as-an-indicator-of-%C3%A2-disease-activity-and-severity-in-lupus
#14
Abidullah Khan, Iqbal Haider, Maimoona Ayub, Salman Khan
Background: Amongst the different clinical and laboratory parameters used to monitor disease activity in systemic lupus erythematosus (SLE), mean platelet volume (MPV) is a novel biomarker. Although MPV has been studied in other rheumatological conditions like rheumatoid arthritis, its role in adult SLE needs to be defined, especially in Pakistan. Methods: The aim of this study was to evaluate the role of MPV as a biomarker of disease activity in SLE. Fifty patients were recruited through a consecutive non-probability sampling technique for this cross-sectional study...
2017: F1000Research
https://www.readbyqxmd.com/read/28409522/serological-biomarkers-as-risk-factors-of-sle-associated-pulmonary-arterial-hypertension-a-systematic-review-and-meta-analysis
#15
J Wang, J Qian, Y Wang, J Zhao, Q Wang, Z Tian, M Li, X Zeng
Objective This article aims to determine the serological biomarkers which can be considered as risk factors of systemic lupus erythematosus (SLE)-associated pulmonary arterial hypertension by a systematic review and meta-analysis. Methods This study was conducted in accordance with the PRISMA statement. The search database included MEDLINE, EMBASE, Cochrane Library and Scopus. The Newcastle-Ottawa scale was used for the quality assessment. The odds ratio was the primary measure of effect of the risk factors...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28405179/a-review-of-studies-of-the-proteomes-of-circulating-microparticles-key-roles-for-galectin-3-binding-protein-expressing-microparticles-in-vascular-diseases-and-systemic-lupus-erythematosus
#16
REVIEW
Christoffer T Nielsen, Ole Østergaard, Niclas S Rasmussen, Søren Jacobsen, Niels H H Heegaard
Subcellular microvesicles (MVs) have attracted increasing interest during the past decades. While initially considered as inert cellular debris, several important roles for MVs in physiological homeostasis, cancer, cardiovascular, and autoimmune diseases have been uncovered. Although still poorly understood, MVs are involved in trafficking of information from cell-to-cell, and are implicated in the regulation of immunity, thrombosis, and coagulation. Different subtypes of extracellular MVs exist. This review focuses on the cell membrane-derived shedded MVs (ranging in size from 200 to 1000 nm) typically termed microparticles (MPs)...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28400421/kidney-outcomes-and-risk-factors-for-nephritis-flare-de-novo-in-a-multiethnic-cohort-of-pregnant-patients-with-lupus
#17
Jill P Buyon, Mimi Y Kim, Marta M Guerra, Sifan Lu, Emily Reeves, Michelle Petri, Carl A Laskin, Michael D Lockshin, Lisa R Sammaritano, D Ware Branch, T Flint Porter, Allen Sawitzke, Joan T Merrill, Mary D Stephenson, Elisabeth Cohn, Jane E Salmon
BACKGROUND AND OBJECTIVES: Kidney disease is a critical concern in counseling patients with lupus considering pregnancy. This study sought to assess the risk of renal flares during pregnancy in women with previous lupus nephritis in partial or complete remission, particularly in those with antidouble-stranded DNA antibodies and low complement levels, and the risk of new-onset nephritis in patients with stable/mildly active SLE. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We assessed active nephritis (renal flares and de novo kidney disease) and associated predictors during pregnancy in patients with lupus with urine protein ≤1000 mg and serum creatinine <1...
April 11, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28394235/a-critical-analysis-of-the-tools-to-evaluate-neuropsychiatric-lupus
#18
K E N Clark, C N Clark, A Rahman
Neuropsychiatric symptoms occur commonly in patients with systemic lupus erythematosus, but they are not always due to active disease. It is crucial to identify cases that are due to active systemic lupus erythematosus so that appropriate treatment can be instituted. There is no single serological or imaging test that distinguishes active neuropsychiatric systemic lupus erythematosus from neuropsychiatric manifestations caused by other factors such as infection. Most patients with neuropsychiatric systemic lupus erythematosus have generalised features of disease activity...
April 2017: Lupus
https://www.readbyqxmd.com/read/28394234/s100%C3%AE-is-associated-with-cognitive-impairment-in-childhood-onset-systemic-lupus-erythematosus-patients
#19
A T Lapa, M Postal, N A Sinicato, B S Bellini, P T Fernandes, R Marini, S Appenzeller
Objective To investigate serologic S100β protein levels in childhood-onset SLE patients (cSLE) and to elucidate their association with disease activity and neuropsychiatric (NP) manifestations. Methods We included 71 cSLE patients (67 females; median age 18 years; range 9-37 and 53 (47 females; median age of 20 years; range 6-29) age and sex matched healthy controls. Neurological manifestations were analysed according to the American College of Rheumatology (ACR) criteria. Cognitive evaluation was performed in all participants using Wechsler Intelligence Scale for Children (WISC-III) and Wechsler Adult Intelligence Scale (WAIS), according to age, and validated in Portuguese...
April 2017: Lupus
https://www.readbyqxmd.com/read/28394230/advanced-mri-techniques-biomarkers-in-neuropsychiatric-lupus
#20
N Sarbu, P Toledano, A Calvo, E Roura, M I Sarbu, G Espinosa, X Lladó, R Cervera, N Bargalló
Objectives The objective of this study was to determine whether advanced MRI could provide biomarkers for diagnosis and prognosis in neuropsychiatric systemic lupus erythematosus (NPSLE). Methods Our prospective study included 28 systemic lupus erythematosus (SLE) patients with primary central NPSLE, 22 patients without NPSLE and 20 healthy controls. We used visual scales to evaluate atrophy and white matter hyperintensities, voxel-based morphometry and Freesurfer to measure brain volume, plus diffusion-tensor imaging (DTI) to assess white matter (WM) and gray matter (GM) damage...
April 2017: Lupus
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