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rheumatoid arthritis mimic

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https://www.readbyqxmd.com/read/29751523/annexin-a1-and-autoimmunity-from-basic-science-to-clinical-applications
#1
REVIEW
Maurizio Bruschi, Andrea Petretto, Augusto Vaglio, Laura Santucci, Giovanni Candiano, Gian Marco Ghiggeri
Annexin A1 is a protein with multifunctional roles in innate and adaptive immunity mainly devoted to the regulation of inflammatory cells and the resolution of inflammation. Most of the data regarding Annexin A1 roles in immunity derive from cell studies and from mice models lacking Annexin A1 for genetic manipulation (Annexin A1-/- ); only a few studies sought to define how Annexin A1 is involved in human diseases. High levels of anti-Annexin A1 autoantibodies have been reported in systemic lupus erythematosus (SLE), suggesting this protein is implicated in auto-immunity...
May 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29749497/mir%C3%A2-486%C3%A2-5p-is-upregulated-in-osteoarthritis-and-inhibits-chondrocyte-proliferation-and-migration-by-suppressing-smad2
#2
Junkai Shi, Kansuo Guo, Shile Su, Jun Li, Chunhui Li
Osteoarthritis (OA) is the most common form of arthritis and is caused by the breakdown of joint cartilage. The present study aimed to investigate an effective method for the treatment of OA. It was demonstrated that, compared with other patients, patients with OA exhibited lower mRNA expression levels of SMAD family member 2 (SMAD2). MicroRNA (miR)‑486‑5p was predicted to bind with SMAD2, which was verified by dual‑luciferase reporter assay. Compared withcontrol patients who had no known history of OA or rheumatoid arthritis, patients with OA exhibited higher miR‑486‑5p expression level...
April 26, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29712771/igg-immunocomplexes-sensitize-human-monocytes-for-inflammatory-hyperactivity-via-transcriptomic-and-epigenetic-reprogramming-in-rheumatoid-arthritis
#3
Qiao Zhong, Fang-Yuan Gong, Zheng Gong, Sheng-Hao Hua, Ke-Qin Zeng, Xiao-Ming Gao
Prevalence of circulating immunocomplexes (ICs) strongly correlates with rheumatoid arthritis (RA) in humans. Deposits of IgG-ICs are abundant in affected joints of patients, yet molecular mechanisms for the pathogenic roles of such ICs are not fully understood. In this study, we present evidence that IgG-ICs precipitated from RA sera sensitized human monocytes for a long-lasting inflammatory functional state, characterized by a strong TNF-α response to cellular proteins representing damage-associated molecular patterns and microbe-derived pathogen-associated molecular patterns...
April 30, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29692623/nephritis-cerebritis-and-myositis-after-adalimumab-therapy-in-a-patient-with-rheumatoid-arthritis-a-case-report
#4
Narges E Omran, Abdulsalam A Noorwali
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease that mainly affects the joints, therefore, may cause deformities and disability if untreated. The first line of treatment is disease-modifying antirheumatic drugs (DMARDs). When the patient fails to respond to DMARDs, mainly methotrexate, then second-line therapy is required. Tumor necrosis factor α (TNFα) plays an important role in the pathogenesis of RA; however, the treatment with anti-TNFα medications is challenging. It may trigger the autoimmune system and result in producing antibodies that induce symptoms and signs mimic to systemic lupus erythematosus (SLE), and in rare situations can affect vital organs with severe and life-threatening complications...
2018: International Journal of General Medicine
https://www.readbyqxmd.com/read/29691581/-upregulation-of-mir-498-suppresses-th17-cell-differentiation-by-targeting-stat3-in-rheumatoid-arthritis-patients
#5
Hai-Yan Xiang, Feng Pan, Ju-Zhen Yan, Li-Quan Hong, La-Hong Zhang, Yu-Hua Liu, Xiao Feng, Cheng-Song Cai
To investigate the effect and mechanism of miR-498 on Th17 cell differentiation of peripheral blood mononuclear cells (PMBCs) in rheumatoid arthritis (RA) patients, peripheral blood samples were collected from RA patients and healthy controls, respectively. The proportion of CD4+ IL-17+ T cells (Th17 cells) or CD4+ FOXP3+ T cells (Tregs) in T cells and the Th17/Treg ratio were identified by the flow cytometer. The STAT3 and miR-498 expression were measured by Western blot and real-time PCR, respectively. ELISA was used to detect IL-17 concentrations...
April 25, 2018: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/29653213/neutrophilic-dermatoses-part-ii-pyoderma-gangrenosum-and-other-bowel-and-arthritis-associated-neutrophilic-dermatoses
#6
REVIEW
Hovik J Ashchyan, Caroline A Nelson, Sasha Stephen, William D James, Robert G Micheletti, Misha Rosenbach
Neutrophilic dermatoses are a heterogeneous group of inflammatory skin disorders that present with unique clinical features, but are unified by the presence of a sterile, predominantly neutrophilic infiltrate on histopathology. The morphology of cutaneous lesions associated with these disorders is heterogeneous, which renders diagnosis challenging. Moreover, a thorough evaluation is required to exclude diseases that mimic these disorders and to diagnose potential associated infectious, inflammatory, and neoplastic processes...
April 10, 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29626254/cul4b-promotes-the-pathology-of-adjuvant-induced-arthritis-in-rats-through-the-canonical-wnt-signaling
#7
Chenggui Miao, Jun Chang, Guoxue Zhang, Hao Yu, Lili Zhou, Guoliang Zhou, Chuanlei Zhao
This work aims to discuss the possibility that disordered CUL4B was involved in the pathogenesis of adjuvant-induced arthritis (AIA) in rats. Synovium and FLS from AIA rats both showed increased CUL4B and β-catenin, and up-regulated CUL4B enhanced the canonical Wnt signaling by targeting the GSK3β. Increased CUL4B promoted the FLS abnormal proliferation, activated the secretion of IL-1β and IL-8, and promoted the production of AIA pathology gene MMP3 and fibronectin. Furthermore, miR-101-3p was significantly down-regulated in AIA rats compared with controls, and transfection of AIA FLS with miR-101-3p mimics significantly down-regulated the CUL4B expression, whereas transfection with miR-101-3p inhibitors resulted in an opposite observation...
April 6, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29545315/down-regulation-of-mir-10a-5p-promotes-proliferation-and-restricts-apoptosis-via-targeting-t-box-transcription-factor-5-in-inflamed-synoviocytes
#8
Nazim Hussain, Wenhua Zhu, Congshan Jiang, Jing Xu, Manman Geng, Xiaoying Wu, Safdar Hussain, Bo Wang, Muhammad Shahid Riaz Rajoka, Yue Li, Juan Tian, Liesu Meng, Shemin Lu
Synoviocytes from rheumatoid arthritis (RA) patients share certain features with tumor cells, such as over proliferation and invasion. Anomalous microRNA (miRNA) expression may participate in the pathogenesis of RA in different ways. The objective of the present study was to observe the role of miR-10a-5p targeting T-box transcription factor 5 (TBX5) gene on synoviocyte proliferation and apoptosis in RA. Human synovial sarcoma cell line, SW982 cells stimulating with interleukin-1β (IL-1β) were transfected with miR-10a-5p mimic and siRNA of TBX5...
April 27, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29536378/a-case-report-of-chikungunya-fever-rheumatoid-arthritis-and-felty-s-syndrome
#9
José Kennedy Amaral, Robert T Schoen
INTRODUCTION: Chronic chikungunya (CHIK) arthritis, an inflammatory arthritis, often follows acute CHIK fever (CHIKF), a viral infection. The pathogenesis of chronic CHIK arthritis is poorly characterized, but may resemble other forms of inflammatory arthritis. Clinically, chronic CHIK arthritis sometimes mimics rheumatoid arthritis (RA). CASE REPORT: We report a patient with well-characterized CHIKF followed 2 months later by chronic CHIK arthritis not only resembling RA clinically, but also associated with RA biomarkers and extra-articular features, including Felty's syndrome (FS)...
June 2018: Rheumatology and Therapy
https://www.readbyqxmd.com/read/29518379/cavitary-lung-diseases-a-clinical-radiologic-algorithmic-approach
#10
REVIEW
Khalid Gafoor, Shalin Patel, Francis Girvin, Nishant Gupta, David Naidich, Stephen Machnicki, Kevin K Brown, Atul Mehta, Bryan Husta, Jay H Ryu, George A Sarosi, Tomás Franquet, Johny Verschakelen, Takeshi Johkoh, William Travis, Suhail Raoof
Cavities occasionally are encountered on thoracic images. Their differential diagnosis is large and includes, among others, various infections, autoimmune conditions, and primary and metastatic malignancies. We offer an algorithmic approach to their evaluation by initially excluding mimics of cavities and then broadly classifying them according to the duration of clinical symptoms and radiographic abnormalities. An acute or subacute process (< 12 weeks) suggests common bacterial and uncommon nocardial and fungal causes of pulmonary abscesses, necrotizing pneumonias, and septic emboli...
March 6, 2018: Chest
https://www.readbyqxmd.com/read/29512949/-viral-arthritis
#11
Camille Zambaz, Diana Dan
Arthritis and arthralgia during a viral infection are often polyarticular and symmetric and can mimic rheumatoid arthritis. Depending on germs, others signs and symptoms as fever, cutaneous rash (Parvovirus B19) or jaundice (hepatitis) can be present. Worldwide most common germs are Parvovirus B19, hepatitis B and C, HIV and alphavirus. There are significant differences throughout the world and epidemiology continues to evolve with a progression of vector-borne infections. Diagnosis of viral arthritis is often difficult and is based on epidemiological, clinical and serological data...
March 7, 2018: Revue Médicale Suisse
https://www.readbyqxmd.com/read/29424904/mir-212-3p-reduced-proliferation-and-promoted-apoptosis-of-fibroblast-like-synoviocytes-via-down-regulating-sox5-in-rheumatoid-arthritis
#12
Y Liu, X-L Zhang, X-F Li, Y-C Tang, X Zhao
OBJECTIVE: Several microRNAs have been reported to contribute the progression of rheumatoid arthritis (RA) due to the ectopic expression of miRNAs in fibroblast-like synoviocytes (FLS). However, the function of miR-212-3p in RA still has not been mentioned before. PATIENTS AND METHODS: We obtained serum, synovial tissues, and FLS samples from RA patients and normal donors. Quantitative Real-time polymerase chain reaction (qRT-PCR) was used to analysis the expression level of miR-212-3p...
January 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29361202/treatment-of-chronic-chikungunya-arthritis-with-methotrexate-a-systematic-review
#13
J Kennedy Amaral, Ravi Sutaria, Robert T Schoen
OBJECTIVES: Chikungunya is a rapidly emerging, global viral infection that can cause chronic, debilitating arthritis that in some ways mimics rheumatoid arthritis. This study evaluated the available evidence of the efficacy and safety of methotrexate (MTX), a therapy widely used in rheumatoid arthritis, in the treatment of chronic chikungunya arthritis. METHODS: A systematic literature search was performed to identify all published trials that evaluated MTX as monotherapy or combination therapy in chronic chikungunya arthritis...
January 23, 2018: Arthritis Care & Research
https://www.readbyqxmd.com/read/29357802/conjugates-of-cell-adhesion-peptides-for-therapeutics-and-diagnostics-against-cancer-and-autoimmune-diseases
#14
REVIEW
Mario E G Moral, Teruna J Siahaan
Overexpressed cell-surface receptors are hallmarks of many disease states and are often used as markers for targeting diseased cells over healthy counterparts. Cell adhesion peptides, which are often derived from interacting regions of these receptor-ligand proteins, mimic surfaces of intact proteins and, thus, have been studied as targeting agents for various payloads to certain cell targets for cancers and autoimmune diseases. Because many cytotoxic agents in the free form are often harmful to healthy cells, the use of cell adhesion peptides in targeting their delivery to diseased cells has been studied to potentially reduce required effective doses and associated harmful side-effects...
2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29276516/myostatin-promotes-interleukin-1%C3%AE-expression-in-rheumatoid-arthritis-synovial-fibroblasts-through-inhibition-of-mir-21-5p
#15
Sung-Lin Hu, An-Chen Chang, Chien-Chung Huang, Chun-Hao Tsai, Cheng-Chieh Lin, Chih-Hsin Tang
Rheumatoid arthritis (RA) is characterized by the infiltration of a number of pro-inflammatory cytokines into synovial fluid and patients with RA often develop joint destruction and deficits in muscle mass. The growth factor myostatin is a key regulator linking muscle mass and bone structure. We sought to determine whether myostatin regulates rheumatoid synovial fibroblast activity and inflammation in RA. We found that levels of myostatin and interleukin (IL)-1β (a key pro-inflammatory cytokine in RA) in synovial fluid from RA patients were overexpressed and positively correlated...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29248883/necrotising-soft-tissue-infection-without-systemic-toxicity-in-a-patient-with-rheumatoid-arthritis-treated-with-tocilizumab
#16
Saki Manabe, Hidetaka Yanagi, Hideki Ozawa, Atsushi Takagi
A Japanese woman aged 76 years with rheumatoid arthritis treated with prednisolone and tocilizumab presented with a 2-day history of redness and pain in her right thigh. She was hospitalised with a primary diagnosis of cellulitis and antimicrobial therapy was initiated. She had been stable until the fourth day of admission, when the swelling of her right thigh rapidly worsened and demonstrated purpura; she was subsequently unable to walk because of the pain. A diagnosis of necrotising soft tissue infection (NSTI) was made and extensive debridement was performed...
December 15, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29208331/autoimmune-and-medication-induced-lymphadenopathies
#17
REVIEW
Alejandro A Gru, Dennis P O'Malley
This article will provide a discussion of some common autoimmune disorders that could affect the lymph nodes and potentially mimic B and T-cell lymphomas. Some of these disorders are more characteristic of individuals in the pediatric age group (autoimmune lymphoproliferative syndrome, Kawasaki disease), while others present in older individuals (rheumatoid arthritis, lupus erythematosus, sarcoidosis). A common finding that groups all of these disorders together is the overall relative preservation of the architecture, a feature that can be particularly helpful to distinguish them from many B and T-cell lymphomas...
January 2018: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29191214/the-role-of-aberrant-expression-of-t-cell-mirnas-affected-by-tnf-%C3%AE-in-the-immunopathogenesis-of-rheumatoid-arthritis
#18
Ning-Sheng Lai, Hui-Chun Yu, Chien-Hsueh Tung, Kuang-Yung Huang, Hsien-Bin Huang, Ming-Chi Lu
BACKGROUND: Tumor necrosis factor-alpha (TNF-α) can cause diverse T cell dysfunctions in patients with rheumatoid arthritis (RA). It is involved in the regulation of microRNAs (miRNAs) expression in different cell types. We hypothesized that the expression of T cell miRNAs would be affected by TNF-α, and these miRNAs could participate in the immunopathogenesis of RA. METHODS: Expression profiles of 270 human miRNAs in Jurkat cells, cultured in the presence or absence of TNF-α for 7 days were analyzed by real-time polymerase chain reaction...
December 1, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29020715/diagnosis-and-management-of-polymyalgia-rheumatica
#19
REVIEW
Olwyn Jones, Fraser Birrell
Polymyalgia rheumatica (PMR) is a common inflammatory condition of unknown aetiology with a prevalence of 1 in 133 in the over 50s, and a female to male ratio of 2:1. Symptoms develop over a matter of weeks; typically bilateral shoulder or pelvic girdle pain and stiffness, that is worse in the mornings. Associated symptoms include low-grade fever, malaise, fatigue, low mood, poor appetite, and weight loss. There is no specific diagnostic test for PMR but the usual pattern is a commensurate rise in CRP and ESR...
December 2016: Practitioner
https://www.readbyqxmd.com/read/28983760/chikungunya-virus-associated-disease
#20
REVIEW
C Hua, B Combe
PURPOSE OF REVIEW: Chikungunya virus (CHIKV) infection has become increasingly prevalent in the last decade not only across the southern hemisphere but also, because of a recently documented viral mutation, in southern Europe and the USA. With the global spread of CHIKV infection, practitioners should know its epidemiology, pathophysiology and clinical features. RECENT FINDINGS: The acute phase of CHIKV disease is characterised by a fever-arthralgia-rash syndrome...
October 5, 2017: Current Rheumatology Reports
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