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https://www.readbyqxmd.com/read/26915609/potential-risk-factors-associated-with-vascular-diseases-in-patients-receiving-treatment-for-hypertension
#1
Hyunjung Kim, Joonhong Park, Hyojin Chae, Gun Dong Lee, Sang Yoon Lee, Jong Min Lee, Yong Seog Oh, Myungshin Kim, Yonggoo Kim
BACKGROUND: Currently, the hypertension (HTN) patients undergo appropriate medical treatment, and traditional risk factors are highly controlled. Therefore, potential risk factors of atherosclerotic vascular diseases (AVD) and venous thromboembolisms (VTE) in HTN should be reconsidered. We investigated thrombophilic genetic mutations and existing biomarkers for AVD or VTE in HTN patients receiving treatment. METHODS: A total of 183 patients were enrolled: AVD with HTN (group A, n=45), VTE with HTN (group B, n=62), and HTN patients without any vascular diseases (group C, n=76)...
May 2016: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/26732006/thrombophilia-markers-in-patients-with-recurrent-early-miscarriage
#2
Ying Wang, Xianghua Lin, Qiuju Wu, Mingpeng Zhao, Shiyao Xian, Dijin Lin, Longqiaozi Sun, Jian He, Yunwen Bao, Chaohui Duan
BACKGROUND: This study was to investigate the association between thrombophilia and REM by the change of thrombophilia markers and to evaluate their contribution in diagnosis and treatment of REM. METHODS: 199 women with REM history were divided into two groups within the study group: 151 pregnant (REM-P) and 48 nonpregnant (REM-NP). In addition, 121 healthy age-matched women without REM history were divided into two groups of the control group: 75 pregnant (Control-P) and 46 nonpregnant (Control-NP)...
2015: Clinical Laboratory
https://www.readbyqxmd.com/read/26646388/an-anti-dna-antibody-prefers-damaged-dsdna-over-native
#3
N I Akberova, A A Zhmurov, T A Nevzorova, R I Litvinov
DNA-protein interactions, including DNA-antibody complexes, have both fundamental and practical significance. In particular, antibodies against double-stranded DNA play an important role in the pathogenesis of autoimmune diseases. Elucidation of structural mechanisms of an antigen recognition and interaction of anti-DNA antibodies provides a basis for understanding the role of DNA-containing immune complexes in human pathologies and for new treatments. Here we used Molecular Dynamic simulations of bimolecular complexes of a segment of dsDNA with a monoclonal anti-DNA antibody's Fab-fragment to obtain detailed structural and physical characteristics of the dynamic intermolecular interactions...
December 8, 2015: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/26239326/-usefulness-of-studies-looking-for-autoimmunity-in-patients-with-spontaneous-chronic-urticaria
#4
María Isabel Rojo-Gutiérrez, Christian Nataly Flores-Ruvalcaba, Jaime Mellado-Ábrego, Gloria Castillo-Narváez, Danika Pammela Ramírez-Rojo
BACKGROUND: Chronic spontaneous urticaria (CSU) is a common condition in adults, especially among women; this entity is frequently associated with autoimmune diseases. Our goal is to assess through laboratory studies whether patients with autoimmune CSU presented data. MATERIAL AND METHOD: A cross-sectional study of 35 patients was done in the area of Allergy and Immunology at Hospital Juarez de Mexico diagnosed with CSU. We performed the following tests: complete blood count, thyroid antibodies (antiperoxidase and thyroglobulin), antinuclear antibodies, rheumatoid factor, lupus anticoagulant, LE cells Autologous Serum Skin Test (ASST), add (C3 and C4)...
July 2015: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/26217617/the-laterality-of-deep-vein-thrombosis-in-the-pelvic-and-lower-extremity-veins
#5
Ha Song Shin, Jong Kwon Park
PURPOSE: This study aimed to determine whether deep vein thrombosis (DVT) predominantly occurred on a particular side in the pelvic and lower extremity veins. MATERIALS AND METHODS: Among 259 consecutive patients with leg swelling, 65 were confirmed to have DVT in the pelvis and lower extremities, and enrolled in this study. The serum levels of initial D-dimer, antithrombin III, tissue plasminogen activator, factor VIII, proteins C and S, anticardiolipin antibodies immunoglobulin (Ig) G and IgM and lupus anticoagulant were measured and analyzed retrospectively...
June 2014: Vascular Specialist International
https://www.readbyqxmd.com/read/25986329/mcconnell-s-sign-is-not-specific-for-pulmonary-embolism-case-report-and-review-of-the-literature
#6
REVIEW
Brooks M Walsh, Christopher L Moore
BACKGROUND: McConnell's sign (right ventricular [RV] free wall hypokinesis with apical sparing on echocardiography) is often described as very specific for the diagnosis of pulmonary embolism (PE). We present the case of a patient who, despite manifesting a classic McConnell's sign, was not found to have a PE. CASE REPORT: A 58-year-old woman presented to the emergency department with a cough, dyspnea, and leg swelling. A bedside focused cardiac ultrasound revealed hypokinesis of the RV free wall, with apical sparing, in the apical four-chamber view...
September 2015: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25940537/rivaroxaban-in-antiphospholipid-syndrome-raps-protocol-a-prospective-randomized-controlled-phase-ii-iii-clinical-trial-of-rivaroxaban-versus-warfarin-in-patients-with-thrombotic-antiphospholipid-syndrome-with-or-without-sle
#7
RANDOMIZED CONTROLLED TRIAL
H Cohen, C J Doré, S Clawson, B J Hunt, D Isenberg, M Khamashta, N Muirhead
INTRODUCTION: The current mainstay of the treatment of thrombotic antiphospholipid syndrome (APS) is long-term anticoagulation with vitamin K antagonists (VKAs) such as warfarin. Non-VKA oral anticoagulants (NOACs), which include rivaroxaban, have been shown to be effective and safe compared with warfarin for the treatment of venous thromboembolism (VTE) in major phase III prospective, randomized controlled trials (RCTs), but the results may not be directly generalizable to patients with APS...
September 2015: Lupus
https://www.readbyqxmd.com/read/25766006/effects-of-storage-and-thawing-conditions-on-coagulation-testing
#8
R C Gosselin, K Honeychurch, H J Kang, D M Dwyre
INTRODUCTION: Current recommendations for coagulation testing storage and thawing are based on historical studies that were performed using unbuffered 3.8% sodium citrate. We sought to measure the effects of freezing and thawing conditions 3.2% buffered sodium citrate plasma samples that have been stored in vials with either snap or sealed screw tops, frozen in -70 °C freezer or dry ice and thawed either capped or uncapped. METHODS: Shed blood samples were pooled and then aliquoted into four snap top and four screw tops vials...
August 2015: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/25500883/defective-removal-of-ribonucleotides-from-dna-promotes-systemic-autoimmunity
#9
Claudia Günther, Barbara Kind, Martin A M Reijns, Nicole Berndt, Manuel Martinez-Bueno, Christine Wolf, Victoria Tüngler, Osvaldo Chara, Young Ae Lee, Norbert Hübner, Louise Bicknell, Sophia Blum, Claudia Krug, Franziska Schmidt, Stefanie Kretschmer, Sarah Koss, Katy R Astell, Georgia Ramantani, Anja Bauerfeind, David L Morris, Deborah S Cunninghame Graham, Doryen Bubeck, Andrea Leitch, Stuart H Ralston, Elizabeth A Blackburn, Manfred Gahr, Torsten Witte, Timothy J Vyse, Inga Melchers, Elisabeth Mangold, Markus M Nöthen, Martin Aringer, Annegret Kuhn, Kirsten Lüthke, Leonore Unger, Annette Bley, Alice Lorenzi, John D Isaacs, Dimitra Alexopoulou, Karsten Conrad, Andreas Dahl, Axel Roers, Marta E Alarcon-Riquelme, Andrew P Jackson, Min Ae Lee-Kirsch
Genome integrity is continuously challenged by the DNA damage that arises during normal cell metabolism. Biallelic mutations in the genes encoding the genome surveillance enzyme ribonuclease H2 (RNase H2) cause Aicardi-Goutières syndrome (AGS), a pediatric disorder that shares features with the autoimmune disease systemic lupus erythematosus (SLE). Here we determined that heterozygous parents of AGS patients exhibit an intermediate autoimmune phenotype and demonstrated a genetic association between rare RNASEH2 sequence variants and SLE...
January 2015: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/25500879/ags-sle-and-rnaseh2-mutations-translating-insights-into-therapeutic-advances
#10
COMMENT
William F Pendergraft, Terry K Means
Systemic lupus erythematosus (SLE) is a severe autoimmune disease characterized by the presence of nucleic acid- and protein-targeting autoantibodies and an aberrant type I IFN expression signature. Aicardi-Goutières syndrome (AGS) is an autosomal-recessive encephalopathy in children that is characterized by mutations in numerous nucleic acid repair enzymes and elevated IFN levels. Phenotypically, patients with AGS and SLE share many similarities. Ribonuclease H2 (RNase H2) is a nucleic acid repair enzyme that removes unwanted ribonucleotides from DNA...
January 2015: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/25401470/inherited-sting-activating-mutation-underlies-a-familial-inflammatory-syndrome-with-lupus-like-manifestations
#11
Nadia Jeremiah, Bénédicte Neven, Matteo Gentili, Isabelle Callebaut, Sophia Maschalidi, Marie-Claude Stolzenberg, Nicolas Goudin, Marie-Louis Frémond, Patrick Nitschke, Thierry J Molina, Stéphane Blanche, Capucine Picard, Gillian I Rice, Yanick J Crow, Nicolas Manel, Alain Fischer, Brigitte Bader-Meunier, Frédéric Rieux-Laucat
Innate immunity to viral infection involves induction of the type I IFN response; however, dysfunctional regulation of this pathway leads to inappropriate inflammation. Here, we evaluated a nonconsanguineous family of mixed European descent, with 4 members affected by systemic inflammatory and autoimmune conditions, including lupus, with variable clinical expression. We identified a germline dominant gain-of-function mutation in TMEM173, which encodes stimulator of type I IFN gene (STING), in the affected individuals...
December 2014: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/25202883/determining-the-effect-of-freezing-on-coagulation-testing-comparison-of-results-between-fresh-and-once-frozen-thawed-plasma
#12
COMPARATIVE STUDY
Robert C Gosselin, Denis W Dwyre
The accuracy of the results from coagulation testing can be affected by numerous preanalytic and analytic variables including the stability of the citrated sample at room temperature. Samples not tested within 2-4 h of collection should be processed and frozen for later analysis. As limited data exist about the impact of freezing samples on coagulation testing, we sought to evaluate the effect of freezing on coagulation testing. Plasma samples into 3.2% sodium citrate tubes, centrifuged to yield platelet-poor plasma, were evaluated for prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen, D-dimer, antithrombin (AT) activity, factors V, VII, VIII, IX, lupus anticoagulant and anti-Xa measurements for both unfractionated and low-molecular-weight heparins...
January 2015: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/24652596/altered-fibrin-clot-structure-function-in-patients-with-antiphospholipid-syndrome-association-with-thrombotic-manifestation
#13
MULTICENTER STUDY
M Celińska-Lowenhoff, T Iwaniec, A Padjas, J Musiał, A Undas
We tested the hypothesis that plasma fibrin clot structure/function is unfavourably altered in patients with antiphospholipid syndrome (APS). Ex vivo plasma clot permeability, turbidity and susceptibility to lysis were determined in 126 consecutive patients with APS enrolled five months or more since thrombotic event vs 105 controls. Patients with both primary and secondary APS were characterised by 11% lower clot permeability (p<0.001), 4.8% shorter lag phase (p<0.001), 10% longer clot lysis time (p<0...
August 2014: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/24629573/antiphospholipid-antibodies-in-critically-ill-patients-with-cancer-a-prospective-cohort-study
#14
Juliana Vassalo, Nelson Spector, Ernesto de Meis, Lígia S C F Rabello, Maíra M Rosolem, Pedro E A A do Brasil, Jorge I F Salluh, Márcio Soares
PURPOSE: The purpose of this study is to evaluate the prevalence and the prognostic impact of antiphospholipid antibodies (aPL) in critically ill cancer patients. METHODS: This is a prospective cohort study in adult patients admitted to the intensive care unit for more than 48 hours at a cancer center. Clinical and laboratory data including coagulation parameters were obtained. Cox proportional hazard models were used to identify predictors of 6-month mortality...
August 2014: Journal of Critical Care
https://www.readbyqxmd.com/read/24616097/the-arg-62-residues-of-the-trex1-exonuclease-act-across-the-dimer-interface-contributing-to-catalysis-in-the-opposing-protomers
#15
Jason M Fye, Stephanie R Coffin, Clinton D Orebaugh, Thomas Hollis, Fred W Perrino
TREX1 is a 3'-deoxyribonuclease that degrades single- and double-stranded DNA (ssDNA and dsDNA) to prevent inappropriate nucleic acid-mediated immune activation. More than 40 different disease-causing TREX1 mutations have been identified exhibiting dominant and recessive genetic phenotypes in a spectrum of autoimmune disorders. Mutations in TREX1 at positions Asp-18 and Asp-200 to His and Asn exhibit dominant autoimmune phenotypes associated with the clinical disorders familial chilblain lupus and Aicardi-Goutières syndrome...
April 18, 2014: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/24387216/mononeuritis-multiplex-protein-losing-gastroenteropathy-and-choroidopathy-seen-together-in-a-case-of-systemic-lupus-erythematosus
#16
Yasuhiko Hirabayashi, Shinichiro Saito, Miki Watanabe Takeshita, Takao Kodera, Yasuhiko Munakata, Tomonori Ishii, Hiroshi Fujii, Masahiko Shimura, Takeshi Sasaki
Abstract A 43-year-old woman with systemic lupus erythematosus (SLE) had an episode of mononeuritis multiplex prior to developing protein-losing gastroenteropathy. Four years later, she had another episode of mononeuritis multiplex, followed by choroidopathy. These manifestations are uncommon in SLE, but may be attributed to vasculitis. The laboratory findings indicated that the elevation of D-dimer and thrombin-antithrombin complex levels seen in this case might be useful in evaluating vascular lesions in SLE...
September 2003: Modern Rheumatology
https://www.readbyqxmd.com/read/24385451/d-dimer-levels-over-time-and-the-risk-of-recurrent-venous-thromboembolism-an-update-of-the-vienna-prediction-model
#17
MULTICENTER STUDY
Sabine Eichinger, Georg Heinze, Paul A Kyrle
BACKGROUND: Patients with unprovoked venous thromboembolism (VTE) can be stratified according to their recurrence risk based on their sex, the VTE location, and D-dimer measured 3 weeks after anticoagulation by the Vienna Prediction Model. We aimed to expand the model to also assess the recurrence risk from later points on. METHODS AND RESULTS: Five hundred and fifty-three patients with a first VTE were followed for a median of 68 months. We excluded patients with VTE provoked by a transient risk factor or female hormone intake, with a natural inhibitor deficiency, the lupus anticoagulant, or cancer...
2014: Journal of the American Heart Association
https://www.readbyqxmd.com/read/24187097/clinical-features-and-associated-factors-of-abdominal-pain-in-systemic-lupus-erythematosus
#18
Shiwen Yuan, Fan Lian, Dongying Chen, Hao Li, Qian Qiu, Zhongping Zhan, Yujin Ye, Hanshi Xu, Liuqin Liang, Xiuyan Yang
OBJECTIVE: To evaluate the clinical characteristics of systemic lupus erythematosus (SLE)-induced abdominal pain in a cohort in South China and identify the risk factors for SLE-induced abdominal pain. METHODS: This is a retrospective cohort study of SLE patients with complaint of abdominal pain admitted to the first affiliated university hospital of Sun Yat-sen University between 2002 and 2011. Demographic information, clinical features, laboratory findings, SLE Disease Activity Index, and imaging characteristics were documented...
December 2013: Journal of Rheumatology
https://www.readbyqxmd.com/read/24038836/risk-factors-for-thromboembolism-and-pulmonary-artery-hypertension-following-splenectomy-in-children-with-hereditary-spherocytosis
#19
Anirban Das, Deepak Bansal, Jasmina Ahluwalia, Reena Das, Manoj K Rohit, Savita V Attri, Amita Trehan, Ram K Marwaha
BACKGROUND: The aim was to study risk-factors for vascular thrombosis and incidence of pulmonary artery hypertension (PAH) in splenectomized children with hereditary spherocytosis (HS) at a single center. PROCEDURE: Pre- and post-splenectomy hemoglobin and platelet counts were recorded. Post-splenectomy lipid-profile, fibrinogen, D-dimer, CRP and anti-coagulant-protein levels were compared to established controls. Echo-Doppler was performed for PAH. RESULTS: Twenty-six children with HS had undergone splenectomy; the mean age at surgery was 7...
January 2014: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/23912648/serum-analysis-of-coagulation-factors-in-ipf-and-nsip
#20
E Bargagli, C Madioni, N Bianchi, R M Refini, R Cappelli, P Rottoli
Recent literature and our previous proteomic findings prompted us to study the coagulation system in idiopathic pulmonary fibrosis (IPF), the pathogenesis of which remains unclear. The aim of this study was to compare coagulation factors in idiopathic pulmonary fibrosis and idiopathic nonspecific interstitial pneumonia (NSIP) patients and healthy controls. Thirty-three IPF patients (23 acute exacerbation and 10 stable IPF patients), 7 NSIP patients, and 44 controls were enrolled. Concentrations of D-dimer, homocysteine, functional protein C, protein C antigen, free and total protein S antigen and activity, fibrinogen and factor VIIIc were analyzed in serum of patients and controls...
February 2014: Inflammation
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