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https://www.readbyqxmd.com/read/28550190/patient-derived-anti-%C3%AE-2gp1-antibodies-recognize-a-peptide-motif-pattern-and-not-a-specific-sequence-of-residues
#1
Philippe de Moerloose, Céline Fickentscher, Françoise Boehlen, Jean-Marie Tiercy, Egbert K O Kruithof, Karim J Brandt
Antiphospholipid antibody syndrome is an autoimmune disease characterized by the presence of so-called antiphospholipid antibodies and clinical manifestations such as recurrent thromboembolic or pregnancy complications. Although the main antigenic determinant for antiphospholipid antibodies has been identified as the beta-2-glycoprotein 1 (β2GP1), the precise epitope recognized by antiphospholipid antibodies still remains largely unknown. In the present study, we wanted to identify a sequence in the domain I of β2GP1 able to induce the proliferation of CD4+ T cells isolated from antiphospholipid antibody syndrome patients but not from healthy donors and to interact with antiphospholipid antibodies...
May 26, 2017: Haematologica
https://www.readbyqxmd.com/read/28549386/newly-developed-dilute-russell-s-viper-venom-reagents-for-lupus-anticoagulant-detection-with-improved-specificity
#2
G W Moore, M Peyrafitte, C Dunois, J Amiral
Background Dilute Russell's viper venom time (dRVVT) is indispensible in lupus anticoagulant (LA) detection yet commercial reagents from different suppliers perform variably, no gold standard assays exist and therapeutic anticoagulation interference is problematic. Objective The objective of this study was to compare a new formulation dRVVT with two currently available dRVVTs. Materials and methods Life Diagnostics (LD) dRVVT and Stago PTT-LA were routinely used for lupus anticoagulant detection, plus Taipan snake venom time/ecarin time (TSVT/ET) for patients on warfarin or rivaroxaban...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28546102/after-failure-with-acenocoumarol-rivaroxaban-in-antiphospholipid-syndrome-a-report-of-2-cases
#3
Javier José Mateos Rodríguez, David Bellido, David Castro, José Portillo Sánchez, Raúl Vanegas, Alicia Núñez García
Antiphospholipid syndrome is characterized by abortions or thrombotic phenomena associated with specific antibodies. Anticoagulant therapy is based on vitamin K antagonists. We present two cases in which the use of rivaroxaban achieved control of the disease after the failure of acenocoumarol.
May 22, 2017: Reumatología Clinica
https://www.readbyqxmd.com/read/28538012/antiphospholipid-syndrome-an-update-for-clinicians-and-scientists
#4
Andrew P Vreede, Paula L Bockenstedt, Jason S Knight
PURPOSE OF REVIEW: Antiphospholipid syndrome (APS) is a leading acquired cause of thrombosis and pregnancy loss. Upon diagnosis (which is unlikely to be made until at least one morbid event has occurred), anticoagulant medications are typically prescribed in an attempt to prevent future events. This approach is not uniformly effective and does not prevent associated autoimmune and inflammatory complications. The goal of this review is to update clinicians and scientists on mechanistic and clinically relevant studies from the past 18 months, which have especially focused on inflammatory aspects of APS pathophysiology...
May 22, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28534460/flail-anterior-tricuspid-valve-leaflet-in-a-neonate-association-with-maternal-antiphospholipid-syndrome
#5
Adrian J Tarca, Luke Eckersley, Darshan Kothari
This brief report describes a case of flail anterior tricuspid valve leaflet in a neonate associated with maternal antiphospholipid syndrome. Fetal echocardiography at 27 weeks of gestation showed competent atrioventricular valves with biventricular echogenic chordae. Fetal distress was noted at delivery, and echocardiography showed a flail anterior leaflet of the tricuspid valve with severe regurgitation. Possible causation and implications of maternal antiphospholipid syndrome are discussed.
May 23, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28532221/antiphospholipid-antibodies-are-associated-with-positive-screening-for-common-mental-disorders-in-women-with-previous-pregnancy-loss-the-noha-psy-observational-study
#6
Jean-Christophe Gris, Fabienne Cyprien, Sylvie Bouvier, Eva Cochery-Nouvellon, Géraldine Lavigne-Lissalde, Erick Mercier, Jean-Pierre Balducchi
OBJECTIVE: Case reports describe neuropsychiatric manifestations associated with antiphospholipid antibodies (aPlAbs). In patients sharing the same symptoms fulfilling the antiphospholipid syndrome (APS) clinical criteria, the prevalence of common mental disorders has however never been studied. METHOD: We observed women with three consecutive abortions before the 10(th) week of gestation or one fetal loss at or beyond the 10(th) week. We compared the prevalence of common psychiatric disorders detected through screening using the Mini International Neuropsychiatric Interview, 10 years after inclusion, in women with APS (n = 506), women negative for aPlAbs but carrying the F5rs6025 or F2rs1799963 thrombogenic polymorphism (n = 269), and women with negative thrombophilia screening results as controls (n = 764)...
May 22, 2017: World Journal of Biological Psychiatry
https://www.readbyqxmd.com/read/28532196/fetal-and-neonatal-involvement-in-maternal-rheumatologic-disease
#7
Shigeo Iijima
A pregnancy complicated with rheumatologic diseases can have various influences on the fetus and/or neonate. Maternal systemic lupus erythematosus (SLE) may cause preterm and/or small for gestational age (SGA) delivery and neonatal lupus (NL). Some neonates with NL have congenital heart block (CHB) with increased morbidity and mortality, even requiring pacemakers. Antiphospholipid syndrome may occur with SLE and affect fetal and/or neonatal outcomes. Pregnancy involving primary Sjögren syndrome (pSS) tends to result in preterm delivery and low birthweight infants...
May 22, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28530465/antiphospholipid-antibodies-negativization-time-for-testing-for-non-criteria-apl
#8
M Radin, I Cecchi, C Pérez-Sánchez
No abstract text is available yet for this article.
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28528615/chronic-tender-ulcers-on-the-calf-and-both-forearms
#9
Michael C Cameron, Mitsuya Katayama, Nishit S Patel, Philip D Shenefelt, Charurut Somboonwit
An elderly woman presented with a 3-month history of nonhealing, tender ulcers involving the right calf and both forearms. She denied any history of similar lesions or trauma. Two trials of oral antibiotics had led to no improvement. Her medical history was significant for rheumatoid arthritis treated with methotrexate, hydroxychloroquine, and prednisone. A review of clinical manifestations was otherwise negative for disease. Physical examination of the patient's right calf revealed two punched-out ulcers with central necrotic black eschars, underlying retiform purpuric pattern, and mild fibrinopurulent drainage (Figure 1)...
2017: Skinmed
https://www.readbyqxmd.com/read/28528521/myeloid-populations-in-systemic-autoimmune-diseases
#10
REVIEW
María Morell, Nieves Varela, Concepción Marañón
Systemic autoimmune diseases (SADs) encompass a wide spectrum of clinical signs as a reflection of their complex physiopathology. A variety of mechanisms related with the innate immune system are in the origin of the loss of self-tolerance in these diseases, and for most of them, the myeloid leukocytes are key actors. Monocytes, macrophages, dendritic cells, and neutrophils are first-line immune effectors located in the interface between innate and adaptive immunity. They are crucial in the organization of the local and systemic responses to damage-associated molecular patterns (DAMPs) and determine the intensity, orientation, and duration of the local immune response through the expression of chemokines, costimulatory or protolerogenic factors...
May 20, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28525532/the-effects-of-indirect-and-direct-acting-anticoagulants-on-lupus-anticoagulant-assays-a-large-retrospective-study-at-a-coagulation-reference-laboratory
#11
Jansen N Seheult, Michael P Meyer, Franklin A Bontempo, Irina Chibisov
Objectives: To investigate the effects of indirect- and direct-acting anticoagulants on the interpretation of lupus anticoagulant (LAC) assays. Methods: A retrospective database review was performed to identify all LAC panels from November 2012 to November 2015. The positivity rates for three LAC tests were compared among various anticoagulant medications. Results: This analysis included 7,721 LAC panels. Direct oral anticoagulants, warfarin, and unfractionated heparin (UFH) were associated with higher LAC positivity rates compared with patients not receiving documented anticoagulation (83% for argatroban, 58% for dabigatran, 72% for rivaroxaban, 53% for apixaban, 56% for warfarin, and 36% for UFH vs 29% for no anticoagulation, P < ...
May 19, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28520321/-multifocal-osteonecrosis-revealing-an-antiphospholipid-syndrome-case-report
#12
S Legrève, G Brands
This article illustrates the case of a 30-year-old woman presenting with multifocal osteonecrosis as the first symptom of a primary antiphospholipid syndrome. The association of multifocal osteonecrosis and primary antiphospholipid syndrome without any medical history of vascular thrombosis or pregnancy complications remains rare.
May 2017: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28516871/diagnosis-of-catastrophic-anti-phospholipid-syndrome-in-a-patient-tested-negative-for-conventional-tests
#13
Fabrizio Conti, Roberta Priori, Cristiano Alessandri, Roberta Misasi, Antonella Capozzi, Monica Pendolino, Simona Truglia, Silvia Frisenda, Maurizio Sorice, Guido Valesini
Catastrophic antiphospholipid syndrome (CAPS) is a severe variant of APS, characterised by clinical evidence of multiple organ involvement developing over a very short period of time, histopathological evidence of multiple small vessel occlusions and laboratory confirmation of the presence of aPL (lupus anticoagulant and/or anticardiolipin antibodies and/or anti-Beta2-glcyoprotein I antibodies). Here we report a case of a 39-year-old woman patient who developed a CAPS which was negative to the conventional aPL but positive for aPL in thin layer chromatography immunostaining and vimentin/cardiolipin antibodies by ELISA test...
May 8, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28515823/lupus-negative-libman-sacks-endocarditis-complicated-by-catastrophic-antiphospholipid-syndrome
#14
Ghulam Murtaza, Joy Iskandar, Tara Humphrey, Sujeen Adhikari, Aneesh Kuruvilla
Libman-Sacks endocarditis is characterized by sterile and verrucous lesions that predominantly affect the aortic and mitral valves. In most cases, patients do not have significant valvular dysfunction. However, patients with significant valvular dysfunction may present with serious complications such as cardiac failure, arrhythmias, and thromboembolic events. Recently, association of Libman-Sacks endocarditis with antiphospholipid antibody syndrome (APS) has been made. APS is most commonly defined by venous and arterial thrombosis, recurrent pregnancy loss, and thrombocytopenia...
April 2017: Cardiology Research
https://www.readbyqxmd.com/read/28508963/hemodiafiltration-for-hepatic-encephalopathy-induced-by-budd-chiari-syndrome-in-a-patient-with-end-stage-kidney-disease
#15
Takuya Wakamatsu, Suguru Yamamoto, Kenya Kamimura, Takeshi Nakatsue, Noriaki Iino, Seitaro Iguchi, Yoshikatsu Kaneko, Shin Goto, Junichiro James Kazama, Ichiei Narita
A 36-year-old woman who was undergoing dialysis for end-stage kidney disease (ESKD) was admitted to our hospital with consciousness disorder. She was diagnosed with Budd-Chiari syndrome due to antiphospholipid syndrome at the age of 28 years. Her kidney function and leg edema gradually deteriorated. After initiation of hemodialysis (HD), transient loss of consciousness due to hepatic encephalopathy during HD treatment occurred frequently. Her kidney replacement therapy was changed to online hemodiafiltration (HDF), which dramatically improved her hepatic coma...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28508528/competing-risks-model-in-screening-for-preeclampsia-in-twin-pregnancies-by-maternal-characteristics-and-medical-history
#16
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/28507183/longterm-hydroxychloroquine-therapy-and-low-dose-aspirin-may-have-an-additive-effectiveness-in-the-primary-prevention-of-cardiovascular-events-in-patients-with-systemic-lupus-erythematosus
#17
Serena Fasano, Luciana Pierro, Ilenia Pantano, Michele Iudici, Gabriele Valentini
OBJECTIVE: Systemic lupus erythematosus (SLE) is associated with an increased risk of cardiovascular disease (CVD). Thromboprophylaxis with low-dose aspirin (ASA) and hydroxychloroquine (HCQ) seems promising in SLE. We investigated the effects of HCQ cumulative dosages (c-HCQ) and the possible synergistic efficacy of ASA and HCQ in preventing a first CV event (CVE) in patients with SLE. METHODS: Patients consecutively admitted to our center who, at admission, satisfied the 1997 American College of Rheumatology and/or 2012 Systemic Lupus Collaborating Clinics classification criteria for SLE, and had not experienced any CVE, were enrolled...
May 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28503285/oral-contraceptive-related-transverse-sinus-thrombosis-as-an-initial-manifestation-of-antiphospholipid-syndrome-in-the-absence-of-systemic-lupus-erythematosus
#18
Payam Saadat, Reza Mohseni-Ahangar
BACKGROUND: Cerebral venous sinus thrombosis is a rare and potentially life-threatening neurologic manifestation of antiphospholipid syndrome. Oral contraceptive pills (OCP) may increase the risk of vascular events, even in people without family history of venous thrombosis. CASE PRESENTATION: A 31-year-old woman with four weeks of constant headache and history of taking OCP for one year has been selected for this study. The results of magnetic resonance imaging (MRI) of brain and venography confirmed a diagnosis of cerebral venous sinus thrombosis...
2017: Caspian Journal of Internal Medicine
https://www.readbyqxmd.com/read/28502943/the-development-of-cerebral-venous-thrombosis-after-tadalafil-ingestion-in-a-patient-with-antiphospholipid-syndrome
#19
Kenji Numata, Kouhei Shimoda, Yasushi Shibata, Ayako Shioya, Yasuharu Tokuda
We report a case of cerebral venous thrombosis related to the ingestion of tadalafil. A 45-year-old man presented with posterior headache and was diagnosed with tension headache. Five days later, he was transported to our hospital via ambulance due to a tonic-clonic seizure. Head MRI showed cerebral venous thrombosis (CVT). He confessed to having recently taken a large doses of tadalafil. His anti-cardiolipin antibody and anti-caldiolipin-β2-glycoprotein-I complex antibody levels were elevated. Our case suggests the possibility that tadalafil is related to both cardiovascular complications and CVT in patients with hypercoagulability...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28502938/successful-treatment-of-catastrophic-antiphospholipid-antibody-syndrome-associated-with-malt-lymphoma-by-autologous-hematopoietic-stem-cell-transplantation
#20
Satoko Oka, Kazuo Ono, Masaharu Nohgawa
A 37-year-old woman with extranodal marginal-zone lymphoma was admitted with a fever, hemiplegia, and severe dyspnea after chemotherapy. Catastrophic antiphospholipid antibody syndrome (CAPS) was suspected based on the histopathological confirmation of small-pulmonary vessel occlusion, evidence of the involvement of three organs, and elevated lupus anticoagulant assay results in a short time span. The patient responded to the initial treatment. One month later, the CAPS and lymphoma relapsed, and the patient underwent autologous hematopoietic stem cell transplantation...
2017: Internal Medicine
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