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Hydroxychloroquine

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https://www.readbyqxmd.com/read/27913551/what-is-the-role-of-hydroxychloroquine-in-reducing-thrombotic-risk-in-patients-with-antiphospholipid-antibodies
#1
Tzu-Fei Wang, Wendy Lim
A 35-year-old man presents with an acute unprovoked deep vein thrombosis of the left lower extremity. He is treated with anticoagulation and elects to discontinue treatment after 6 months. He subsequently develops polyarthralgias, fatigue, and a malar rash, and a diagnosis of systemic lupus erythematosus is made based on laboratory and clinical findings. Additional laboratory testing reveals persistent triple positive antiphospholipid antibodies, including lupus anticoagulant, high titer anticardiolipin antibodies, and anti-β2-glycoprotein I antibodies...
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27909515/myocardial-biopsy-in-idiopathic%C3%A2-atrial-fibrillation-and-other-arrhythmias-nosological-diagnosis-clinical-and-morphological-parallels-and-treatment
#2
O V Blagova, A V Nedostup, E A Kogan, V A Sulimov, S A Abugov, A G Kupriyanova, V A Zaydenov, A E Donnikov, E V Zaklyazminskaya, E A Okisheva
BACKGROUND: The nosological nature of "idiopathic" arrhythmias and the effect of etiotropic and pathogenetic treatment are often unknown. METHODS AND RESULTS: 19 patients (42.6±11.3 years, 9 women) with atrial fibrillation (n = 16), supraventricular (n = 10) and ventricular (n = 4) premature beats, supraventricular (n = 2) and ventricular tachycardia (n = 1), left bundle branch block (n= 2), AV block (n = 2) without structural heart changes. Viruses were identified (polymerase chain reaction, PCR) along with measurement of anti-heart antibodies (AHA) and endomyocardial biopsy (EMB)...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27905330/screening-for-chloroquine-maculopathy-in-populations-with-uncertain-reliability-in-outcomes-of-automatic-visual-field-testing
#3
Paradee Kunavisarut, Pimploy Chavengsaksongkram, Aniki Rothova, Kessara Pathanapitoon
PURPOSE: The purpose of this study was to compare screening methods for the early detection of maculopathy in patients treated with chloroquine (CQ) or hydroxychloroquine (HCQ) and to identify the risk factors for the development of toxic maculopathy. METHODS: We performed a prospective study of all 217 patients taking CQ and/or HCQ and seen in our center between July 2011 and December 2013. All subjects underwent a complete ocular examination, as well as spectral domain optical coherence tomography (SD-OCT), fundus autofluorescence (FAF), and 10-2 Humphrey visual field (10-2 HVF)...
October 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27904832/frontal-fibrosing-alopecia-treatment-options
#4
Raymond Fertig, Antonella Tosti
Frontal fibrosing alopecia (FFA) is a rare dermatologic disease that causes scarring and hair loss and is increasing in prevalence worldwide. FFA patients typically present with hair loss in the frontal scalp region and eyebrows which may be associated with sensations of itching or burning. FFA is a clinically distinct variant of lichen planopilaris (LPP) that affects predominantly postmenopausal women, although men and premenopausal women may also be affected. Early diagnosis and prompt treatment are necessary to prevent definitive scarring and permanent hair loss...
November 2016: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/27903507/hydroxychloroquine-inhibits-proinflammatory-signalling-pathways-by-targeting-endosomal-nadph-oxidase
#5
Nadine Müller-Calleja, Davit Manukyan, Antje Canisius, Dennis Strand, Karl J Lackner
OBJECTIVES: Hydroxychloroquine (HCQ) has been used for decades to treat patients with rheumatic diseases, for example, systemic lupus erythematosus (SLE), rheumatoid arthritis or the antiphospholipid syndrome (APS). We hypothesise that HCQ might target endosomal NADPH oxidase (NOX), which is involved in the signal transduction of cytokines as well as antiphospholipid antibodies (aPL). METHODS: For in vitro experiments, monocytic cells were stimulated with tumour necrosis factor α (TNFα), interleukin-1β (IL-1β) or a human monoclonal aPL and the activity of NOX was determined by flow cytometry...
November 30, 2016: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/27902471/autophagy-autophagy-associated-adaptive-immune-responses-and-its-role-in-hematologic-malignancies
#6
REVIEW
Liangshun You, Shenhe Jin, Li Zhu, Wenbin Qian
Autophagy is a tightly regulated catabolic process that leads to the degradation of cytoplasmatic components such as aggregated/misfolded proteins and organelles through the lysosomal machinery. Recent studies suggest that autophagy plays such a role in the context of the anti-tumor immune response, make it an attractive target for cancer immunotherapy. Defective autophagy in hematopoietic stem cells may contribute to the development of hematologic malignancies, including leukemia, myelodysplastic syndrome, and lymphoproliferative disorder...
November 25, 2016: Oncotarget
https://www.readbyqxmd.com/read/27889812/research-progress-of-hydroxychloroquine-and-autophagy-inhibitors-on-cancer
#7
REVIEW
Ting-Ting Shi, Xiao-Xu Yu, Li-Jun Yan, Hong-Tao Xiao
PURPOSE: Hydroxychloroquine (HCQ), the analog of chloroquine, augments the effect of chemotherapies and radiotherapy on various tumors identified in the current clinical trials. Meanwhile, the toxicity of HCQ retinopathy raises concern worldwide. Thus, the potent autophagy inhibitors are urgently needed. METHODS: A systematic review was related to 'hydroxychloroquine' or 'chloroquine' with 'clinical trials,' 'retinopathy' and 'new autophagy inhibitors.' This led to many cross-references involving HCQ, and these data have been incorporated into the following study...
November 26, 2016: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/27886691/pharmacotherapy-pearls-for-the-geriatrician-focus-on-oral-disease-modifying-antirheumatic-drugs-including-newer-agents
#8
REVIEW
Ann J Biehl, James D Katz
Providing safe and effective pharmacotherapy to the geriatric patients with rheumatological disorders is an ongoing struggle for the rheumatologist and geriatrician alike. Cohesive communication and partnership can improve the care of these patients and subvert adverse outcomes. Disease-modifying antirheumatic drugs, including methotrexate, hydroxychloroquine, sulfasalazine, and leflunomide, and the newest oral agent for treatment of rheumatoid arthritis, tofacitinib, have distinctive monitoring and adverse effect profiles...
February 2017: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/27881580/disruption-of-autophagic-degradation-with-roc-325-antagonizes-renal-cell-carcinoma-pathogenesis
#9
Jennifer S Carew, Claudia M Espitia, Weiguo Zhao, Yingchun Han, Valeria Visconte, James G Phillips, Steffan T Nawrocki
PURPOSE: Although autophagy plays important roles in malignant pathogenesis and drug resistance, there are few clinical agents that disrupt this pathway and the potential therapeutic benefit of autophagy inhibition remains undetermined. We used medicinal chemistry approaches to generate a series of novel agents that inhibit autophagic degradation. EXPERIMENTAL DESIGN: ROC-325 was selected as a lead compound for further evaluation. Comprehensive in vitro and in vivo studies were conducted to evaluate the selectivity, tolerability, and efficacy of ROC-325 in preclinical models of renal cell carcinoma (RCC) with HCQ serving as a comparator...
November 23, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27878437/neurosarcoidosis-a-clinical-approach-to-diagnosis-and-management
#10
Richard T Ibitoye, A Wilkins, N J Scolding
Sarcoidosis is a rare but important cause of neurological morbidity, and neurological symptoms often herald the diagnosis. Our understanding of neurosarcoidosis has evolved from early descriptions of a uveoparotid fever to include presentations involving every part of the neural axis. The diagnosis should be suspected in patients with sarcoidosis who develop new neurological symptoms, those presenting with syndromes highly suggestive of neurosarcoidosis, or neuro-inflammatory disease where more common causes have been excluded...
November 22, 2016: Journal of Neurology
https://www.readbyqxmd.com/read/27862892/lupus-anticoagulant-hypoprothrombinemia-syndrome-associated-with-severe-thrombocytopenia-in-a-child
#11
Aimee Foord, Nicole Baca, David Buchbinder, Arash Mahajerin
Lupus anticoagulant hypoprothrombinemia syndrome (LAHPS) comprises lupus anticoagulant, acquired hypoprothrombinemia, and often mild thrombocytopenia or normal platelets. It is usually associated with autoimmunity or postviral illness. We describe a case of a 10-year-old boy with oral bleeding and severe thrombocytopenia initially suggestive of immune thrombocytopenia. Secondary to bleeding, evaluation demonstrated prolonged coagulation tests and subsequently revealed the presence of lupus anticoagulant and hypoprothrombinemia, along with marked autoimmunity, suggestive of LAHPS...
November 15, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/27854095/cerebral-venous-sinus-thrombosis-in-a-patient-with-sj%C3%A3-gren-s-syndrome-with-atypical-antibodies-a-case-report
#12
Tsung-Han Ho, Yu-Wei Hsu, Chih-Wei Wang, Jiunn-Tay Lee, Chi-Hsin Ting, Fu-Chi Yang
BACKGROUND: Although Sjögren's syndrome has been known to complicate with white matter lesions, encephalopathy, or stroke, reports of cerebral venous sinus thrombosis due to Sjögren's syndrome with atypical antibodies are rare. CASE REPORT: A 50-year-old woman was admitted to our neurological ward with nausea and vomiting following acute onset of severe headache in the left occipital region. Brain computed tomography revealed no abnormalities. The patient was fully conscious, with normal cognitive functioning, but exhibited unsteady tandem gait...
June 15, 2016: Acta Neurologica Taiwanica
https://www.readbyqxmd.com/read/27847636/expanded-spectral-domain-oct-findings-in-the-early-detection-of-hydroxychloroquine-retinopathy-and-changes-following-drug-cessation
#13
David R Lally, Jeffrey S Heier, Caroline Baumal, Andre J Witkin, Steven Maler, Chirag P Shah, Elias Reichel, Nadia K Waheed, Igor Bussel, Adam Rogers, Jay S Duker
PURPOSE: To report expanded SD-OCT findings of HCQ retinopathy that may assist the clinician in earlier diagnosis. To characterize structural changes of HCQ retinopathy with SD-OCT after drug cessation. METHODS: Setting: Private practice and academic institution. Patient Population: Patients at New England Eye Center and Ophthalmic Consultants of Boston in Boston, MA diagnosed with HCQ retinopathy and followed after drug cessation. Retrospective clinical data review by the Boston Image Reading Center...
2016: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/27846885/autophagy-is-associated-with-chemoresistance-in-neuroblastoma
#14
Assila Belounis, Carine Nyalendo, Roxane Le Gall, Tina V Imbriglio, Mohamed Mahma, Pierre Teira, Mona Beaunoyer, Sonia Cournoyer, Elie Haddad, Gilles Vassal, Hervé Sartelet
BACKGROUND: Neuroblastoma (NB) is a frequent pediatric tumor characterized by a poor prognosis where a majority of tumors progress despite intensive multimodality treatments. Autophagy, a self-degradative process in cells, could be induced by chemotherapy and be associated with chemoresistance. The aim of this study was to determine whether: 1) autophagy is present in NB, 2) chemotherapy modified its levels, and 3) its inhibition decreased chemoresistance. METHODS: Immunohistochemical stainings were performed on samples from 184 NB patients in order to verify the expression of LC3B, a specific marker for autophagy, and Beclin 1, a positive regulator of autophagy...
November 15, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27846298/damage-in-the-multiethnic-malaysian-systemic-lupus-erythematosus-sle-cohort-comparison-with-other-cohorts-worldwide
#15
Syahrul Sazliyana Shaharir, Heselynn Hussein, Sakthiswary Rajalingham, Mohd Shahrir Mohamed Said, Abdul Halim Abdul Gafor, Rozita Mohd, Ruslinda Mustafar
Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease and despite the improvement in the survival in the past few decades, the morbidity due to disease damage remains significant. The objectives of this study were to investigate the disease damagepattern and determine the associated factors of damage in the multi-ethnic Malaysian SLE patients. We consecutively 424SLE patients who attended a consistent follow-up at the National University of Malaysia Medical Centre and Putrajaya Hospital were recruited...
2016: PloS One
https://www.readbyqxmd.com/read/27843370/rheumatoid-arthritis-in-patients-with-hiv-management-challenges
#16
REVIEW
Matthew B Carroll, Joshua H Fields, Philip G Clerc
Over the past few decades, HIV has been transformed from a once-uniformly fatal disease to now a manageable but complex multisystem illness. Before highly active antiretroviral therapy (HAART), reports suggested that HIV-infected patients with rheumatoid arthritis (RA) would experience remission of their disease. It has now become clear that RA can develop in HIV-infected patients at any time, independent of HAART. Choosing the right medication to treat symptoms related to RA while avoiding excess weakening of the immune system remains a clinical challenge...
2016: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/27843369/polymyalgia-rheumatica-observations-of-disease-evolution-without-corticosteroid-treatment
#17
Arthur E Brawer
OBJECTIVES: The diagnostic diversity of polymyalgia rheumatica (PMR) can easily be obscured by the widespread use of corticosteroids (CSs) early in the disease course. This study observed the course of PMR without CSs and determined whether alternative medication could be useful. METHODS: Seventy patients with new-onset PMR comprised phase 1. Eight were removed with specific diagnoses (four with giant cell arteritis [GCA]). The remaining 62 were treated with nonsteroidal anti-inflammatory drugs (NSAIDs) alone until enough time had elapsed to ascertain whether their PMR had evolved into another rheumatologic inflammatory condition...
2016: Open Access Rheumatol
https://www.readbyqxmd.com/read/27843287/incidence-of-and-risk-factors-for-chloroquine-and-hydroxychloroquine-retinopathy-in-thai-rheumatologic-patients
#18
Nuanpan Tangtavorn, Yosanan Yospaiboon, Tanapat Ratanapakorn, Suthasinee Sinawat, Thuss Sanguansak, Chavakij Bhoomibunchoo, Wipada Laovirojjanakul
OBJECTIVE: To study the incidences of and risk factors for chloroquine (CQ) and hydroxychloroquine (HCQ) retinopathy in Thai rheumatologic patients. METHODS: A retrospective cohort study of 234 rheumatologic patients receiving either CQ or HCQ was conducted. Patients were divided based on whether or not they developed retinopathy as retinopathy-positive or negative groups. Medical records giving details regarding age, gender, body weight, underlying diseases, daily doses, and cumulative doses of CQ or HCQ were reviewed...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27837195/joint-ultrasound-baseline-abnormalities-predict-a-specific-long-term-clinical-outcome-in-systemic-lupus-erythematosus-patients
#19
P Corzo, T C Salman-Monte, V Torrente-Segarra, L Polino, S Mojal, J Carbonell-Abelló
OBJECTIVE: To describe long-term clinical and serological outcome in all systemic lupus erythematosus (SLE) domains in SLE patients with hand arthralgia (HA) and joint ultrasound (JUS) inflammatory abnormalities, and to compare them with asymptomatic SLE patients with normal JUS. METHODS: SLE patients with HA who presented JUS inflammatory abnormalities ('cases') and SLE patients without HA who did not exhibit JUS abnormalities at baseline ('controls') were included...
November 10, 2016: Lupus
https://www.readbyqxmd.com/read/27836820/risk-of-diabetes-mellitus-associated-with-disease-modifying-antirheumatic-drugs-and-statins-in-rheumatoid-arthritis
#20
Gulsen Ozen, Sofia Pedro, Marie E Holmqvist, Michael Avery, Frederick Wolfe, Kaleb Michaud
OBJECTIVE: To investigate the rate of incident diabetes mellitus (DM) in patients with rheumatoid arthritis (RA) and the impact of disease-modifying antirheumatic drug (DMARD) and statin treatments. METHODS: We studied patients with RA and ≥1 year participation in the National Data Bank for Rheumatic Diseases without baseline DM from 2000 through 2014. DM was determined by self-report or initiating DM medication. DMARDs were categorised into four mutually exclusive groups: (1) methotrexate monotherapy (reference); (2) any abatacept with or without synthetic DMARDs (3) any other DMARDs with methotrexate; (4) all other DMARDs without methotrexate; along with separate statin, glucocorticoid and hydroxychloroquine (yes/no) variables...
November 11, 2016: Annals of the Rheumatic Diseases
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