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https://www.readbyqxmd.com/read/28937502/type-iii-interferons-in-systemic-lupus-erythematosus-association-between-interferon-%C3%AE-3-disease-activity-and-anti-ro-ssa-antibodies
#1
Luis M Amezcua-Guerra, Ricardo Márquez-Velasco, Adriana K Chávez-Rueda, Diana Castillo-Martínez, Felipe Massó, Araceli Páez, Juan Colín-Fuentes, Rafael Bojalil
OBJECTIVE: The aim of this study was to assess associations between serum type III (λ) interferons (IFN-λ) and disease activity in systemic lupus erythematosus (SLE). METHODS: Serum levels of IFN-λ1, IFN-λ2, and IFN-λ3 were measured in 93 SLE patients and 67 healthy individuals. The associations with overall disease activity, organ-specific damage, and SLE-related antibodies were assessed. RESULTS: Median IFN-λ1 levels were 0 pg/mL (range, 0-510 pg/mL) and 0 pg/mL (0-171 pg/mL; P = 0...
September 21, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28937472/type-iii-interferons-in-systemic-lupus-erythematosus-association-between-interferon-%C3%AE-3-disease-activity-and-anti-ro-ssa-antibodies
#2
Luis M Amezcua-Guerra, Ricardo Márquez-Velasco, Adriana K Chávez-Rueda, Diana Castillo-Martínez, Felipe Massó, Araceli Páez, Juan Colín-Fuentes, Rafael Bojalil
OBJECTIVE: The aim of this study was to assess associations between serum type III (λ) interferons (IFN-λ) and disease activity in systemic lupus erythematosus (SLE). METHODS: Serum levels of IFN-λ1, IFN-λ2, and IFN-λ3 were measured in 93 SLE patients and 67 healthy individuals. The associations with overall disease activity, organ-specific damage, and SLE-related antibodies were assessed. RESULTS: Median IFN-λ1 levels were 0 pg/mL (range, 0-510 pg/mL) and 0 pg/mL (0-171 pg/mL; P = 0...
October 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/28925103/autoimmune-diseases-involving-skin-and-intestinal-mucosa-are-more-frequent-in-adolescents-and-young-adults-suffering-from-atopic-dermatitis
#3
REVIEW
Francesca Cipriani, Alice Marzatico, Giampaolo Ricci
Evidence has emerged about the relationship between atopic dermatitis (AD) and autoimmune diseases, but the underlying mechanism of this association is complex and still unclear. Recent epidemiological data from the published work suggest a positive correlation. The aim of this review is to analyze the frequency of co-occurrence of AD and autoimmune diseases. Our systematic review included 22 articles from PubMed describing the reciprocal association between AD and autoimmune diseases. Although not all the studies achieved statistically significant results, patients suffering from autoimmune diseases involving skin and intestinal mucosa, such as vitiligo, alopecia areata, celiac disease and inflammatory bowel diseases, showed a higher risk to have AD as comorbidity...
September 19, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28919362/a-homozygote-trex1-mutation-in-two-siblings-with-different-phenotypes-chilblains-and-cerebral-vasculitis
#4
Rabia Miray Kisla Ekinci, Sibel Balci, Atil Bisgin, Derya Ufuk Altintas, Mustafa Yılmaz
Three prime repair exonuclease 1 degrades single and double stranded DNA with 3'-5' nuclease activity and its mutations are related to type 1 IFN mediated autoinflammation due to accumulated intracellular nucleic acids. To date, several cases of systemic lupus erythematosus, Aicardi-Goutieres syndrome, familial chilblain lupus, retinal vasculopathy-cerebral leukodystrophy have been reported with TREX1 mutations. Chilblain lupus is a skin disease characterized by blue-reddish coloring, swelling or ulcers on acral regions of body such as fingertips, heels, nose and auricles...
September 12, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28916114/-scleritis-and-episcleritis
#5
REVIEW
E Héron, T Bourcier
Episcleritis is generally a benign disease with a self-limited course, while scleritis is a severe ocular condition due to a risk of impaired vision in one-fifth of patients and its association with systemic diseases in one third of them. Infectious scleritis, representing 8 % of the etiologies, is mainly of herpetic origin (varicella zoster and herpes simplex viruses). A systemic autoimmune disease is observed in roughly 30 % of scleritis patients: inflammatory rheumatisms (15 %), firstly rheumatoid polyarthritis, systemic vasculitides (8 %), mainly granulomatosis with polyangiitis (Wegener's) and polychondritis, and less often inflammatory bowel disease and systemic lupus erythematosus...
September 12, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28915657/the-prevalence-subtypes-and-associated-factors-of-hyperuricemia-in-lupus-nephritis-patients-at-chronic-kidney-disease-stages-1-3
#6
Simeng Liu, Yijun Gong, Hong Ren, Wen Zhang, Xiaonong Chen, Tong Zhou, Xiao Li, Nan Chen
There is a high prevalence of hyperuricemia (HUA) in the chronic kidney disease (CKD) population. However, there's a dearth of research on HUA's prevalence, subtypes, early detection, and treatment strategies of HUA in lupus nephritis (LN) patients. The aim of this study is to address these knowledge gaps. LN patients presenting to the Department of Nephrology at Shanghai Rui Jin Hospital from January 2011 to January 2016 were recruited. The effective sample size was derived using the power analysis. The demographic, clinical and laboratory characteristics of the LN patients with HUA were compared with those of patients without HUA...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914273/patterns-and-appropriateness-of-thrombophilia-testing-in-an-academic-medical-center
#7
Nicholas Cox, Stacy A Johnson, Sara Vazquez, Ryan P Fleming, Matthew T Rondina, David Kaplan, Stephanie Chauv, Gabriel V Fontaine, Scott M Stevens, Scott Woller, Daniel M Witt
BACKGROUND: Clinical guidelines recommend against routine use of thrombophilia testing in patients with acute thromboembolism. Thrombophilia testing rarely changes acute management of a thrombotic event. OBJECTIVE: To determine appropriateness of thrombophilia testing in a teaching hospital. DESIGN: Retrospective cohort study. SETTING: One academic medical center in Utah. PARTICIPANTS: All patients who received thrombophilia testing between July 1, 2014, and December 31, 2014...
September 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28904124/cutting-edge-endogenous-ifn-%C3%AE-regulates-survival-and-development-of-transitional-b-cells
#8
Jennie A Hamilton, Qi Wu, PingAr Yang, Bao Luo, Shanrun Liu, Huixian Hong, Jun Li, Mark R Walter, Eleanor N Fish, Hui-Chen Hsu, John D Mountz
The transitional stage of B cell development is a formative stage in the spleen where autoreactive specificities are censored as B cells gain immune competence, but the intrinsic and extrinsic factors regulating survival of transitional stage 1 (T1) B cells are unknown. We report that B cell expression of IFN-β is required for optimal survival and TLR7 responses of transitional B cells in the spleen and was overexpressed in T1 B cells from BXD2 lupus-prone mice. Single-cell gene expression analysis of B6 Ifnb(+/+) versus B6 Ifnb(-⁄-) T1 B cells revealed heterogeneous expression of Ifnb in wild-type B cells and distinct gene expression patterns associated with endogenous IFN-β...
September 13, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28901387/triptolide-blocks-the-stat3-signaling-pathway-through-induction-of-protein-tyrosine-phosphatase-shp-1-in-multiple-myeloma-cells
#9
Ji-Hun Kim, Byoungduck Park
Triptolide, an active component extracted from the medicinal plant Tripterygium wilfordii Hook F., has been used to treat various diseases, including lupus, cancer, rheumatoid arthritis and nephritic syndrome. The present study investigated the effects of triptolide on multiple myeloma using western blotting and an electrophoretic mobility shift assay. Triptolide was found to suppress the inducible and constitutive activation of signal transducer and activator of transcription 3 (STAT3), which is closely associated with inflammation and tumorigenesis...
September 6, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28901270/reappraisal-of-antimalarials-in-interferonopathies-new-perspectives-for-old-drugs
#10
Elisa Piscianz, Eva Cuzzoni, Rajan Sharma, Alessandra Tesser, Pooja Sapra, Alberto Tommasini
The story of antimalarials as antinflammatory drugs dates back several centuries. Chinin, the extract of the Cinchona bark, has been exploited since the 18th century for its antimalarial and antifebrile properties. Later, during the Second World War, the broad use of antimalarials allowed arguing their antirheumatic effect on soldiers. Since then, these drugs have been broadly used to treat Systemic Lupus Erythematosus, but, only recently, have the molecular mechanisms of action been partly clarified. Inhibitory action on vacuole function and trafficking has been considered for decades the main mechanism of the action of antimalarials, affecting the activation of phagocytes and dendritic cells...
September 11, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28886937/studies-of-drug-interactions-with-alpha1-acid-glycoprotein-by-using-on-line-immunoextraction-and-high-performance-affinity-chromatography
#11
Cong Bi, Ryan Matsuda, Chenhua Zhang, Zitha Isingizwe, William Clarke, David S Hage
A method that combined on-line immunoextraction with high-performance affinity chromatography was developed to examine the binding of drugs with α1-acid glycoprotein (AGP). Affinity microcolumns containing immobilized polyclonal anti-AGP antibodies were developed that had a capture efficiency of up to 98.4% for AGP and a binding capacity of 0.72nmol AGP when using a 20mm×2.1mm i.d. microcolumn. These microcolumns were employed in various formats to examine the binding of drugs to normal AGP and AGP that had been adsorbed from serum samples for patients with systemic lupus erythematosus (SLE)...
August 31, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28884609/impact-of-classical-risk-factors-for-arterial-or-venous-thrombosis-in-patients-with-antiphospholipid-syndrome
#12
Daniel Navarro-Carpentieri, Maria Del Carmen Castillo-Hernandez, Karim Majluf-Cruz, Guillermo Espejo-Godinez, Paola Carmona-Olvera, Manuel Moreno-Hernandez, Yolanda Lugo-García, Jesús Hernandez-Juarez, Luis Loarca-Piña, Irma Isordia-Salas, Abraham Majluf-Cruz
There are classical risk factors associated with arterial thrombosis (AT) or venous thromboembolic disease (VTD). However, less is known about these risk factors and AT or VTD episodes in patients with antiphospholipid syndrome (APS). Our aim was to elucidate whether APS-related thrombotic episodes are associated with the same risk factors as the non-APS population. We gathered demographics, medical history, complications, and causes of death associated with the risk factors for AT or VTD in patients with APS...
January 1, 2017: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/28875729/role-of-cardiac-pacing-in-congenital-complete-heart-block
#13
Stephanie F Chandler, Francis Fynn-Thompson, Douglas Y Mah
Congenital complete heart block affects 1/15,000 live-born infants, predominantly due to atrioventricular nodal injury from maternal antibodies of mothers with systemic lupus erythermatosus or Sjogren's syndrome. The majority of these children will need a pacemaker implanted prior to becoming young adults. This article will review the various patient and technical factors that influence the type of pacemaker implanted, and the current literature on optimal pacing practices. Areas covered: A literature search was performed using PubMed, Embase and Web of Science...
September 6, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28872085/-manifestations-of-the-connective-tissue-associated-interstitial-lung-disease-under-high-resolution-computed-tomography
#14
Hailan Li, Zeng Xiong, Jinkang Liu, Yisha Li, Bin Zhou
To analyze the features of the connective tissue associated interstitial lung disease (CTD-ILD) by high resolution computed tomography (HRCT).
 Methods: A total of 127 patients with CTD-ILD, who were diagnosed by clinic laboratory examination and pathology in Xiangya Hospital of Central South University form September 2013 to September 2015, were enrolled for this study. Their lung features of HRCT imaging were retrospectively analyzed.
 Results: The classifications for 127 patients were as follows: 36 cases of rheumatoid arthritis (28...
August 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28859258/lupus-associated-functional-polymorphism-in-pnp-causes-cell-cycle-abnormalities-and-interferon-pathway-activation-in-human-immune-cells
#15
Yogita Ghodke-Puranik, Jessica M Dorschner, Danielle M Vsetecka, Shreyasee Amin, Ashima Makol, Floranne Ernste, Thomas Osborn, Kevin Moder, Vaidehi Chowdhary, Elias Eliopoulos, Maria I Zervou, George N Goulielmos, Mark A Jensen, Timothy B Niewold
BACKGROUND: Systemic lupus erythematosus (SLE) is frequently characterized by type I interferon (IFN) pathway activation. We previously found a missense SNP in the purine nucleoside phosphorylase (PNP) gene was associated with high IFN in SLE (rs1049564, P=1.24 x10(-7) ). PNP is a key enzyme in purine metabolism. In this study, we perform functional follow-up of this polymorphism in human cells. METHODS: Type I IFN was measured in patient sera using a reporter cell assay...
August 31, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28854632/rapid-evolution-of-primate-type-2-immune-response-factors-linked-to-asthma-susceptibility
#16
Matthew F Barber, Elliott M Lee, Hayden Griffin, Nels C Elde
Host immunity pathways evolve rapidly in response to antagonism by pathogens. Microbial infections can also trigger excessive inflammation that contributes to diverse autoimmune disorders including asthma, lupus, diabetes, and arthritis. Definitive links between immune system evolution and human autoimmune disease remain unclear. Here we provide evidence that several components of the type 2 immune response pathway have been subject to recurrent positive selection in the primate lineage. Notably, substitutions in the central immune regulator IL13 correspond to a polymorphism linked to asthma susceptibility in humans...
June 1, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28844299/glycoform-analysis-of-alpha1-acid-glycoprotein-based-on-capillary-electrophoresis-and-electrophoretic-injection
#17
Chenhua Zhang, Cong Bi, William Clarke, David S Hage
A method based on capillary electrophoresis (CE) with electrophoretic injection and absorbance detection was developed for the direct analysis of AGP glycoforms in human serum. Electrophoretic injection of AGP was performed in the reversed-polarity mode of CE with a capillary coated with poly(ethylene oxide) and that had minimal electroosmotic flow. This situation created an essentially stationary interface between the sample and running buffer during injection and sample stacking. This approach allowed an 11,000-fold increase in sample loading for a 5min injection versus hydrodynamic injection and without introducing any significant levels of extra band-broadening...
August 15, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28844088/familial-chilblain-lupus-what-can-we-learn-from-type-i-interferonopathies
#18
REVIEW
Christoph Fiehn
PURPOSE OF REVIEW: Familial chilblain lupus belongs to the group of type I interferonopathies and is characterized by typical skin manifestations and acral ischaemia. This review aims to give an overview of clinical signs and the pathophysiological mechanisms. RECENT FINDINGS: There are several mutations that can lead to this autosomal dominant disease. Most frequent is a mutation of the gene for TREX-1. However, as well cases of families with mutations in the SAMHD1 gene and, recently, with one for the gene that codes for the protein stimulator of interferon genes have been described...
August 26, 2017: Current Rheumatology Reports
https://www.readbyqxmd.com/read/28836661/self-dsdna-in-the-pathogenesis-of-systemic-lupus-erythematosus
#19
REVIEW
Yunqiang Bai, Yanli Tong, Yi Liu, Hongbo Hu
Systemic lupus erythematosus (SLE) is a systemic and polyetiological autoimmune disease characterized by the production of antibodies to autologous double stranded DNA (dsDNA) which serve as the diagnostic and prognostic marker. Defective clearance of apoptotic material, together with neutrophil extracellular traps (NETs), provides abundant chromatin or self-dsDNA to trigger the production of anti-dsDNA antibodies, although the mechanisms remain to be elucidated. In SLE patients, immune complexes (IC) of dsDNA and its autoantibodies, triggers the robust type I interferon (IFN-I) production through intracellular DNA sensors, which drives the adaptive immune system to break down self-tolerance...
August 24, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/28835460/lack-of-trex1-causes-systemic-autoimmunity-despite-the-presence-of-antiretroviral-drugs
#20
Martin Achleitner, Martin Kleefisch, Alexander Hennig, Katrin Peschke, Anastasia Polikarpova, Reinhard Oertel, Benjamin Gabriel, Livia Schulze, Dirk Lindeman, Alexander Gerbaulet, Uwe Fiebig, Min Ae Lee-Kirsch, Axel Roers, Rayk Behrendt
Biallelic mutations of three prime repair exonuclease 1 (TREX1) cause the lupus-like disease Aicardi-Goutières syndrome in which accumulation of a yet unknown endogenous DNA substrate of TREX1 triggers a cyclic GMP-AMP synthase-dependent type I IFN response and systemic autoimmunity. Products of reverse transcription originating from endogenous retroelements have been suggested to be a major substrate for TREX1, and reverse transcriptase inhibitors (RTIs) were proposed as a therapeutic option in autoimmunity ensuing from defects of TREX1...
August 23, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
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