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https://www.readbyqxmd.com/read/28545554/whipple-s-disease-mimicking-rheumatoid-arthritis-can-cause-misdiagnosis-and-treatment-failure
#1
Cornelia Glaser, Siegbert Rieg, Thorsten Wiech, Christine Scholz, Dominique Endres, Oliver Stich, Peter Hasselblatt, Walter Geißdörfer, Christian Bogdan, Annerose Serr, Georg Häcker, Reinhard E Voll, Jens Thiel, Nils Venhoff
BACKGROUND: Whipple's disease, a rare chronic infectious disorder caused by Tropheryma whipplei, may present with predominant joint manifestations mimicking rheumatoid arthritis (RA). METHODS: A retrospective single-center cohort study of seven patients was performed. Clinical symptoms were assessed by review of medical charts and Whipple's disease was diagnosed by periodic-acid-Schiff-stain and/or Tropheryma whipplei-specific polymerase-chain-reaction. RESULTS: Median age at disease onset was 54 years, six patients were male...
May 25, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28540416/breastfeeding-initiation-duration-and-reasons-for-weaning-in-patients-with-systemic-lupus-erythematosus
#2
Magdalena Acevedo, Julia Pretini, Marina Micelli, Gabriel Sequeira, Eduardo Kerzberg
To assess breastfeeding in patients with systemic lupus erythematosus (SLE), a cross-sectional study of patients with SLE compared to a non-SLE sample was performed. Patients who had pregnancies subsequent to their diagnosis of SLE and who were followed up in the hospital were interviewed. The group of non-SLE mothers consisted of patients who had no known rheumatic disease at the time of their pregnancy, and who were approached at the hospital paediatrics service waiting room. Thirty-six pregnancies in 31 patients with SLE and the same number of non-SLE mothers were studied...
May 24, 2017: Rheumatology International
https://www.readbyqxmd.com/read/28538012/antiphospholipid-syndrome-an-update-for-clinicians-and-scientists
#3
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/28528883/dilated-cardiomyopathy-and-hydroxychloroquine-induced-phospholipidosis-from-curvilinear-bodies-to-clinical-suspicion
#4
Francisco Di Girolamo, Eduard Claver, Montse Olivé, Joel Salazar-Mendiguchía, Nicolás Manito, Ángel Cequier
No abstract text is available yet for this article.
May 18, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28528615/chronic-tender-ulcers-on-the-calf-and-both-forearms
#5
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/28526123/-direct-mechanism-of-action-in-toxic-myopathies
#6
REVIEW
A Khelfi, M Azzouz, R Abtroun, M Reggabi, B Alamir
Toxic myopathies are a large group of disorders generated by surrounding agents and characterized by structural and/or functional disturbances of muscles. The most recurrent are those induced by commonly used medications. Illicit drugs, environmental toxins from animals, vegetables, or produced by micro-organisms as well as chemical products commonly used are significant causes of such disorders. The muscle toxicity results from multiple mechanisms at different biological levels. Many agents can induce myotoxicity through a direct mechanism in which statins, glucocorticoids and ethyl alcohol are the most representative...
May 16, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28525589/bone-marrow-involvement-in-systemic-lupus-erythematosus
#7
Emilie Chalayer, Nathalie Costedoat-Chalumeau, Odile Beyne-Rauzy, Jacques Ninet, Stephane Durupt, Jacques Tebib, Bouchra Asli, Olivier Lambotte, Martine Ffrench, Christian Vasselon, Pascal Cathébras
BACKGROUND: Besides peripheral cytopenias, bone marrow abnormalities, such as fibrosis, pure red cell aplasia, and aplastic anemia have been reported in patients with systemic lupus erythematosus (SLE), suggesting that bone marrow may be a target organ in SLE. Our objective was to describe this bone marrow involvement. METHODS: This registry is a nationwide retrospective study. Centers provided data concerning medical history, SLE manifestations, type of hematologic disorder, treatments and outcome...
May 19, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28520682/progress-in-the-pathogenesis-and-treatment-of-cardiac-manifestations-of-neonatal-lupus
#8
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/28507328/pro-inflammatory-ca-activated-k-channels-are-inhibited-by-hydroxychloroquine
#9
María Eugenia Schroeder, Sofía Russo, Carlos Costa, Juliana Hori, Inés Tiscornia, Mariela Bollati-Fogolín, Darío S Zamboni, Gonzalo Ferreira, Ernesto Cairoli, Marcelo Hill
Antimalarials have demonstrated beneficial effects in Systemic Lupus Erithematosus and Rheumatoid Arthritis. However, the mechanisms and the molecular players targeted by these drugs remain obscure. Although hydroxychloroquine (HCQ) is a known ion channel inhibitor, this property has not been linked to its anti-inflammatory effects. We aimed to study whether HCQ inhibits pro-inflammatory ion channels. Electrophysiology experiments demonstrated that HCQ inhibited Ca(++)-activated K(+) conductance in THP-1 macrophages in a dose-dependent manner...
May 15, 2017: Scientific Reports
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
#10
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/28501799/high-maternal-expression-of-siglec1-on-monocytes-as-a-surrogate-marker-of-a-type-i-interferon-signature-is-a-risk-factor-for-the-development-of-autoimmune-congenital-heart-block
#11
Anna R Lisney, Franziska Szelinski, Karin Reiter, Gerd R Burmester, Thomas Rose, Thomas Dörner
OBJECTIVES: Autoimmune congenital heart block (CHB) is associated with placental transcytosis of maternal autoantibodies directed against Ro/SS-A and La/SS-B. However, only about 2% of children born to mothers with the respective antibodies are affected, indicating that further risk factors exist, which are not yet fully understood. In this study, we investigated whether a maternal type I interferon (IFN) signature represents a risk factor for the development of CHB. METHODS: Blood samples, clinical data and serological parameters from 9 women with CHB pregnancies, 14 pregnant women with antibodies against Ro/SS-A but without a CHB complication and another 30 healthy pregnant women as controls were studied...
May 13, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28500073/fc%C3%AE-riiia-signaling-modulates-endosomal-tlr-responses-in-human-cd4-t-cells
#12
Anil K Chauhan
Recognition of Ab-opsonized pathogens by immune cells triggers both TLR and Fc receptor signaling. Fc receptors endocytose modified nucleic acids bound to Abs and deliver them to endosomes, where they are recognized by nucleic acid-sensing TLRs (NA-TLRs). We show that in CD4(+) T cells, NA-TLRs, TLR3, TLR8, and TLR9 are upregulated by FcγRIIIa-pSyk cosignaling and localize with FcγRIIIa on the cell surface. TLR9 accumulates on the cell surface, where it recognizes CpG oligonucleotide 2006. Subcellular location of NA-TLRs is a key determinant in discriminating self versus viral nucleic acid...
May 12, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28499424/ultrastructural-deposits-appearing-as-zebra-bodies-in-renal-biopsy-fabry-disease-comparative-case-reports
#13
Precil Diego Miranda de Menezes Neves, Juliana Reis Machado, Fabiano Bichuette Custódio, Maria Luíza Gonçalves Dos Reis Monteiro, Shigueo Iwamoto, Marlene Freire, Marisa França Ferreira, Marlene Antônia Dos Reis
BACKGROUND: Fabry Disease (FD) is a genetic disorder caused by alpha-galactosidase A deficiency. Certain drugs, such as hydroxychloroquine, can produce renal deposits that mimic morphological findings seen in FD, characterizing a type of drug-induced renal phospholipidosis. CASE PRESENTATION: Case 1: A 28-year-old female patient with systemic lupus erythematosus who had been using hydroxychloroquine for 14 months presented subnephrotic proteinuria. Renal biopsy showed deposits compatible with FD...
May 12, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28499370/is-hydroxychloroquine-effective-in-treating-primary-sjogren-s-syndrome-a-systematic-review-and-meta-analysis
#14
Shi-Qin Wang, Li-Wei Zhang, Pan Wei, Hong Hua
BACKGROUND: To systematically review and assess the efficacy and safety of hydroxychloroquine (HCQ) for treating primary Sjogren's syndrome (pSS). METHODS: Five electronic databases (Pubmed, EMBASE, Web of science, Ovid, Cochrane Library) were searched for randomized controlled trials and retrospective or prospective studies published in English that reported the effect of HCQ on pSS. The subjective symptoms (sicca symptoms, fatigue and pain) and the objective indexes (erythrocyte sedimentation rate and Schirmer test) were assessed as main outcome measures...
May 12, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28496328/association-between-use-of-disease-modifying-antirheumatic-drugs-and-diabetes-in-patients-with-ankylosing-spondylitis-rheumatoid-arthritis-or-psoriasis-psoriatic-arthritis-a-nationwide-population-based-cohort-study-of-84-989-patients
#15
Hsin-Hua Chen, Der-Yuan Chen, Chi-Chen Lin, Yi-Ming Chen, Kuo-Lung Lai, Ching-Heng Lin
PURPOSE: The aim of this study is to investigate the association between the use of disease-modifying antirheumatic drugs (DMARDs) and diabetes mellitus (DM) in patients with ankylosing spondylitis (AS), rheumatoid arthritis (RA), or psoriasis/psoriatic arthritis (PS/PSA). PATIENTS AND METHODS: This retrospective cohort study used a nationwide, population-based administrative database to enroll 84,989 cases with AS, RA, or PS/PSA who initiated treatment with anti-tumor necrosis factor (anti-TNF) drugs or nonbiologic DMARDs...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28495086/cell-line-studies-and-analytical-measurements-of-three-paclitaxel-complex-variations
#16
Thomas Manning, Sydney Plummer, Rechelle Woods, Greg Wylie, Dennis Phillips, Logan Krajewski
The copper(II) cation, sucrose, and hydroxychloroquine were complexed with the chemotherapy agent paclitaxel and studied for medicinal activity. Data (GI50, LD50) from single dose and five dose National Cancer Institute sixty cell line panels are presented. Analytical measurements of different complexes were made using Nuclear Magnetic Resonance ((1)H NMR), Matrix Assisted Laser Desorption Ionization-Time of Flight-Mass Spectrometry (MALDI-TOF-MS) and Fourier Transform-Ion Cyclotron Resonance (FT-ICR). Molecular modeling is utilized to better understand the impact that species could have on physical parameters associated with Lipinski's Rule of Five, such as logP and TPSA...
April 22, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28478759/-young-patient-diagnosed-with-hydroxychloroquine-intoxication
#17
Cristóbal Gallego Muñoz, Luis Olmos Gutiérrez, Nieves Guerrero Navarro, Elisa Parra Alonso
No abstract text is available yet for this article.
May 1, 2017: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/28476075/drugs-for-discoid-lupus-erythematosus
#18
REVIEW
Sue Jessop, David A Whitelaw, Matthew J Grainge, Prativa Jayasekera
BACKGROUND: Discoid lupus erythematosus (DLE) is a chronic form of cutaneous lupus, which can cause scarring. Many drugs have been used to treat this disease and some (such as thalidomide, cyclophosphamide and azathioprine) are potentially toxic. This is an update of a Cochrane Review first published in 2000, and previously updated in 2009. We wanted to update the review to assess whether any new information was available to treat DLE, as we were still unsure of the effectiveness of available drugs and how to select the most appropriate treatment for an individual with DLE...
May 5, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28473677/antithrombotic-effects-of-hydroxychloroquine-in-a-pregnant-patient-with-antiphospholipid-syndrome-and-recurrent-venous-thromboembolism
#19
S P Gan, S G Ong
A pregnant woman with antiphospholipid syndrome presented with repeated venous thromboembolism (VTE) in the first and second trimesters of pregnancy despite receiving combination therapy with low-molecular-weight heparin and aspirin. The addition of hydroxychloroquine prevented further VTE recurrence, thus demonstrating its potential antithrombotic effects.
April 2017: Medical Journal of Malaysia
https://www.readbyqxmd.com/read/28458440/hydroxychloroquine-induced-erythroderma
#20
Sunil B Pai, Bhuvaneshwari Sudershan, Maria Kuruvilla, Ashwin Kamath, Pooja K Suresh
Erythroderma is characterized by diffuse erythema and scaling of the skin involving more than 90% of the total body skin surface area. Drug-induced erythroderma has rarely been reported with hydroxychloroquine. We report a case of a 50-year-old female patient, with systemic lupus erythematosus, who developed itchy lesions all over the body 1 month after starting treatment with hydroxychloroquine. Drug-induced erythroderma was suspected. Hydroxychloroquine was withdrawn and the patient was treated with emollients, mid-potency corticosteroids, and oral antihistamines...
January 2017: Indian Journal of Pharmacology
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