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https://www.readbyqxmd.com/read/29662677/auto-antibodies-against-p-q-and-n-type-voltage-dependent-calcium-channels-mimicking-frontotemporal-dementia
#1
Kyan Younes, Lauren A Lepow, Cynthia Estrada, Paul E Schulz
The behavioral variant of frontotemporal dementia is usually a sporadic and progressive neurodegenerative disorder. Here, we report the subacute onset of a frontotemporal dementia phenotype with a treatable etiology. The patient has a history of rheumatoid arthritis, episcleritis, and thyroid eye disease on immunosuppressive therapy. He experienced a rapid personality change, including inappropriate behavior, which suggested frontotemporal dementia. Results of imaging and neuropsychological testing also suggested frontotemporal dementia...
2018: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29563614/a-critical-epitope-in-cd147-facilitates-memory-cd4-t-cell-hyper-activation-in-rheumatoid-arthritis
#2
Na Guo, Sheng Ye, Kui Zhang, Xiaoling Yu, Hongyong Cui, Xiangmin Yang, Peng Lin, Minghua Lv, Jinlin Miao, Yang Zhang, Qing Han, Rongguang Zhang, Zhinan Chen, Ping Zhu
The abnormal activation of CD4+ CD45RO+ memory T (Tm) cells plays an important role in the pathogenesis of rheumatoid arthritis (RA). Previous studies have shown that CD147 participates in T-cell activation. However, it remains unclear whether CD147 is involved in abnormal Tm-cell activation in RA patients. In this study, we demonstrated that CD147 was predominantly upregulated in Tm cells derived from RA patients. The anti-CD147 mAb 5A12 specifically inhibited Tm-cell activation and proliferation and further restrained osteoclastogenesis...
March 21, 2018: Cellular & Molecular Immunology
https://www.readbyqxmd.com/read/29491659/multiple-asymptomatic-juxta-articular-nodules-mimicking-tuberous-xanthoma-a-unusual-presentation-of-tophaceous-gout
#3
Sidharth Tandon, Kabir Sardana, Purnima Malhotra, Jasmeet Singh
Asymptomatic, juxta-articular nodules are an uncommon morphology, which is usually diagnosed as xanthomas, calcinosis cutis or rheumatoid nodules. This study was represented as a case of gout, which is a disorder of purine metabolism resulting in elevation of serum uric acid and deposition of monosodium urate crystals within and around joints and manifests clinically as inflammatory arthritis. Urate crystal deposits have also been found in tendons, ligaments, viscera, and the skin, with the term "tophi" being used for the non-articular deposits...
October 2017: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/29421221/folate-conjugated-superoxide-dismutase-adsorbed-over-antioxidant-mimicking-nanomatrix-frameworks-for-treatment-of-rheumatoid-arthritis
#4
Shikha Srivastava, Deependra Singh, Manju R Singh
Rheumatoid arthritis (RA) is an autoimmune disease occurring in larger population, characterized by synovial inflammation followed by destruction of joint. Major concerned factor for cause of Rheumatoid arthritis (RA) has been related to oxidative stress due to environmental toxicity and immune imbalance. Reactive oxygen species (ROS) generated from macrophages commune series of oxidation at cellular and genetic level and leads to generation of inflammatory cytokines for provoking inflammation in RA. Superoxide Dismutase (SOD) and catalase (CAT) are supposed to be potential antioxidant enzymes to scavange free radicals...
February 5, 2018: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29390551/xanthomatosis-in-bilateral-hands-mimicking-rheumatoid-arthritis-a-case-report
#5
Dan Li, Longfei You, Songqing Fan, Lihua Tan
RATIONALE: Xanthomatosis often accompanies familial hypercholesterolemia. This disease usually occurs in tendons, most commonly located in the Achilles tendon; occasionally it can also be seen in other systems. Although there are previous reports for bilateral hand extensor tendon involvement, to our knowledge there is no report in English literature regarding bilateral hands with small joint synovium presenting as rheumatoid arthritis. Therefore, the case that is presented in this report is unique...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29282397/swan-neck-deformity-mimicking-claw-hand-caused-by-arthritis-in-leprosy
#6
Hendra Gunawan, Nia Srie Haryati, Oki Suwarsa
Swan neck deformity is a hyperextension of the proximal interphalangeal (PIP) joints and flexion of the distal interphalangeal (DIP) joints. Claw hand is a hyperextension of the metacarpal joints and flexion of the PIP joints, accompanied by reduced motor strength. A 23-year-old female, who was released from leprosy treatment, presented with a bend of the second to fifth fingers of both hands. There was hyperextension of the PIP joints and flexion of the DIP joints from the second to fifth fingers of both hands, thickening of the ulnar nerves, and hypoesthesia without motor impairment of the fourth and fifth fingers of both hands...
September 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29242702/proliferative-synovitis-of-the-shoulder-bursae-is-a-key-feature-for-discriminating-elderly-onset-rheumatoid-arthritis-mimicking-polymyalgia-rheumatica-from-polymyalgia-rheumatica
#7
Takeshi Suzuki, Ryochi Yoshida, Yuka Hidaka, Yu Seri
Semiquantitative scoring for subacromial bursa (SAB), subdeltoid bursa (SDB), and subcoracoid bursa by both gray-scale (GS) and power Doppler (PD) ultrasonography was performed in 15 patients with polymyalgia rheumatica (PMR) (72.6 ± 7.7 years old) and 15 patients with elderly onset rheumatoid arthritis with PMR-like onset (pm-EORA) (70.7 ± 7.0 years old) before starting treatment. The GS grades of SAB were significantly higher in the shoulders with pm-EORA than in the shoulders with PMR. The GS and PD scores of SAB and the PD scores of SDB were significantly higher in pm-EORA than in PMR cases...
2017: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29225245/oral-methotrexate-related-lymphoproliferative-disease-presenting-with-severe-osteonecrosis-of-the-jaw-a-case-report-and-literature-review
#8
Sachiko Furukawa, Kazunari Oobu, Masafumi Moriyama, Shintaro Kawano, Saori Sako, Jun-Nosuke Hayashida, Ryota Matsubara, Ken-Ichi Ogata, Tamotsu Kiyoshima, Seiji Nakamura
Long-term methotrexate (MTX) treatment can cause MTX-related lymphoproliferative disorder (MTX-LPD). We experienced a case of MTX-LPD that was associated with severe osteonecrosis of the jaw mimicking medication-related osteonecrosis of the jaw. The patient was an 81-year-old woman with rheumatoid arthritis (RA) who was treated with MTX and bisphosphonate. After 7 years, she was referred to our department for the assessment of giant ulcer and exposure of the alveolar bone of the left maxilla. Histopathological and immunological analyses confirmed a diagnosis of MTX-LPD...
February 15, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29218754/cutaneous-leishmaniasis-mimicking-dactylitis-in-a-patient-with-rheumatoid-arthritis-treated-with-certolizumab
#9
J Herrerias-Moreno, V Expósito-Serrano, E Agut-Busquet, M Corbacho, E Sáez, J Luelmo
No abstract text is available yet for this article.
December 8, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29181179/efficacy-of-bendamustine-on-thrombocytopenia-and-hemolytic-anemia-secondary-to-cd5-positive-b-cell-lymphoma-with-massive-splenomegaly-in-a-patient-with-rheumatoid-arthritis
#10
Yuzuru Hosoda, Hiroshi Hagino, Norihiko Hino, Toru Motokura
Chemotherapy for lymphoma may be avoided in the presence of coincident cytopenia. In case of immune cytopenia secondary to lymphoma, treatment of cytopenia is the same for primary cases, however, chemotherapy for lymphoma may be effective at the cost of severe hematological toxicity. The present study reports a complex case of thrombocytopenia and direct antiglobulin test-negative hemolytic anemia, thus mimicking Evans syndrome, secondary to cluster of differentiation 5-positive B-cell lymphoma with massive splenomegaly, in a patient suffering from rheumatoid arthritis for two decades...
November 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/29166574/altered-tnf-%C3%AE-response-by-aconibal%C3%A2-and-methotrexate-in-a-lipopolysaccharide-induced-setting-of-inflammatory-conditions-potential-on-a-synergistic-combination
#11
Gunhyuk Park, Seung Hoon Lee, Ji-Ye Han, Dal-Seok Oh
ETHNOPHARMACOLOGICAL RELEVANCE: Aconitum carmichaelii (AC) is a common herbal medicine used as anti-inflammatory and analgesic agent in Eastern Asia. In Korea, a commercial processed AC (Aconibal®) is traditionally used to treat the symptoms of spondylosis deformans and rheumatic pain. AIM OF STUDY: Rheumatoid arthritis (RA) is systemic and autoimmune disease characterized by chronic inflammation. Methotrexate (MTX) is often the first-line therapy for RA. If MTX monotherapy is ineffective or RA is initially severe, adding a tumor necrosis factor alpha (TNF-α) inhibitor to the treatment can be beneficial...
March 1, 2018: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/29164284/uncommon-observation-of-bifocal-giant-subchondral-cysts-in-the-hip-diagnostic-role-of-ct-arthrography-and-mri-with-pathological-correlation
#12
Pauline Gonzalez-Espino, Maïté Van Cauter, Louis Gossing, Christine C Galant, Souad Acid, Frederic E Lecouvet
Subchondral cysts (or geodes) are common in osteoarthritis (OA), usually in association with other typical signs, i.e., joint space narrowing, subchondral bone sclerosis, and osteophytosis. However, large lesions without the typical signs of OA or lesions located outside the weight-bearing areas are unusual and may be confused for other conditions, in particular, those of tumoral origin. We report the findings in a 48-year-old man who had been complaining of left buttock pain for 3 years, getting worse over the last year, and an evolutive limited range of motion of the hip...
November 21, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/29146737/rheumatic-disorders-associated-with-immune-checkpoint-inhibitors-in-patients-with-cancer-clinical-aspects-and-relationship-with-tumour-response-a-single-centre-prospective-cohort-study
#13
Marie Kostine, Léa Rouxel, Thomas Barnetche, Rémi Veillon, Florent Martin, Caroline Dutriaux, Léa Dousset, Anne Pham-Ledard, Sorilla Prey, Marie Beylot-Barry, Amaury Daste, Marine Gross-Goupil, Julie Lallier, Alain Ravaud, Edouard Forcade, Bernard Bannwarth, Marie-Elise Truchetet, Christophe Richez, Nadia Mehsen, Thierry Schaeverbeke
OBJECTIVES: To evaluate the prevalence and type of rheumatic immune-related adverse events (irAEs) in patients receiving immune checkpoint inhibitors (ICIs), as well as the correlation with tumour response. METHODS: This was a single-centre prospective observational study including all cancer patients receiving ICIs. The occurrence of irAEs and tumour response was assessed on a regular basis. Patients who experienced musculoskeletal symptoms were referred to the department of rheumatology for clinical evaluation and management...
March 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29133662/a-tiny-tick-can-cause-a-big-health-problem
#14
Manuel John, M Raman, Keith Ryan
Ticks are tiny crawling bugs in the spider family that feed by sucking blood from animals. They are second only to mosquitoes as vectors of human disease, both infectious and toxic. Infected ticks spread over a hundred diseases, some of which are fatal if undetected. They spread the spirochete (which multiplies in the insect's gut) with a subsequent bite to the next host. We describe the only reported cases of peri ocular tick bite from India that presented to us within a span of 3 days and its management. Due suspicion and magnification of the lesions revealed the ticks which otherwise masqueraded as small skin tags/moles on gross examination...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29096690/tlr2-stimulation-impairs-anti-inflammatory-activity-of-m2-like-macrophages-generating-a-chimeric-m1-m2-phenotype
#15
Lilian Quero, Edveena Hanser, Tobias Manigold, André N Tiaden, Diego Kyburz
BACKGROUND: Toll-like receptors (TLRs) and macrophages play an important role in rheumatoid arthritis (RA). Currently, it is not clear whether inflammatory M1 or anti-inflammatory M2 predominate among the resident macrophages in the synovium. In the present study, we set out to investigate the impact of TLR stimulation on monocyte-derived M1 and M2 macrophage function and phenotype by mimicking the exposure to abundant TLR agonists as occurs in the context of RA. The response of macrophage subsets to TLR2 and TLR4 activation was evaluated on cluster of differentiation (CD) marker profile; cytokine secretion; gene expression; and NF-κB, interferon regulatory factors 3 and 7 (IRF3/7), and mitogen-activated protein kinase (MAPK) activation...
November 2, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/29077233/death-effects-of-reveromycin-a-in-normal-and-disease-associated-cells-of-the-joint
#16
Haley Svrcina, Austin Greer, Seth Baker, Morgan Smith, Patricia Martinez, Nathan Granger, Natassja Thomas, Jaylin Miller, Ellen Steinke, Kelsey Davitt, Emily Sloane, Lauren Nugent, Ryan Sabo, Calli Williams, Mark A Lipton, Daniel Jones
Earlier work in our laboratory demonstrated that naturally occurring reveromycin A (Rev A) causes apoptosis in osteoclasts without accompanying necrosis. Rev A death effects in both normal and diseased joint cells were investigated in this study. 10 □M Rev A did not cause apoptosis nor necrosis in monolayer chondrocytes, even at pH 6.8, a pH mimicking that of an inflamed joint. In contrast, at the acidic pH Rev A did induce significant apoptosis (four-fold increase at 48 hours of treatment, p<0.005) in normal synoviocytes without accompanying necrosis...
October 27, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28982129/the-tyrosine-kinase-inhibitor-imatinib-mesylate-suppresses-uric-acid-crystal-induced-acute-gouty-arthritis-in-mice
#17
Laurent L Reber, Philipp Starkl, Bianca Balbino, Riccardo Sibilano, Nicolas Gaudenzio, Stephan Rogalla, Steven Sensarn, Dongmin Kang, Harini Raghu, Jeremy Sokolove, William H Robinson, Christopher H Contag, Mindy Tsai, Stephen J Galli
Gouty arthritis is caused by the deposition of monosodium urate (MSU) crystals in joints. Despite many treatment options for gout, there is a substantial need for alternative treatments for patients unresponsive to current therapies. Tyrosine kinase inhibitors have demonstrated therapeutic benefit in experimental models of antibody-dependent arthritis and in rheumatoid arthritis in humans, but to date, the potential effects of such inhibitors on gouty arthritis has not been evaluated. Here we demonstrate that treatment with the tyrosine kinase inhibitor imatinib mesylate (imatinib) can suppress inflammation induced by injection of MSU crystals into subcutaneous air pouches or into the ankle joint of wild type mice...
2017: PloS One
https://www.readbyqxmd.com/read/28963072/prostaglandin-e2-restrains-human-treg-cell-differentiation-via-e-prostanoid-receptor-2-protein-kinase-a-signaling
#18
Hui Li, Hai-Ying Chen, Wen-Xuan Liu, Xian-Xian Jia, Jing-Ge Zhang, Chun-Ling Ma, Xiao-Jing Zhang, Feng Yu, Bin Cong
Regulatory T cells (Treg cells) belong to a class of immunosuppressive cells that control the pathological changes of autoimmunity and inflammation. Prostaglandin E2 (PGE2) is a potent lipid mediator of immune inflammation including rheumatoid arthritis (RA) that exerts its effects via four subtypes of G-protein-coupled receptors (EP1-4). The ability of PGE2 to regulate human Treg differentiation has not yet been reported. In the current study, we investigated the effects of PGE2 on the differentiation of naïve T cells from healthy and RA patients into Treg cells and the intracellular signaling involved in this process in vitro...
September 28, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28960309/pain-relieving-and-protective-effects-of-astragalus-hydroalcoholic-extract-in-rat-arthritis-models
#19
Mario Maresca, Laura Micheli, Lorenzo Cinci, Anna Rita Bilia, Carla Ghelardini, Lorenzo Di Cesare Mannelli
OBJECTIVES: The evaluation of the pharmacological profile of the dried 50% hydroalcoholic extract (50%HA) of Astragali radix in two different animal models of articular damage resembling osteoarthritis and rheumatoid arthritis. METHODS: Sodium monoiodoacetate (MIA) or complete Freund's adjuvant (CFA) was intra-articular injected (day 0) in the rat tibiotarsal joint to induce damages mimicking osteoarthritis or rheumatoid arthritis. Pain measurements (responses to non-noxious and noxious stimuli, spontaneous pain, articular pain) were assessed on days 7 and 14...
September 29, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28901253/bacterial-toxins-a-hope-towards-angiogenic-ailments
#20
Rekha Khandia, Ashok Munjal, Kuldeep Dhama, Yashpal Singh Malik
BACKGROUND: Angiogenesis is an essential physiological process for growth and maintenance of the body. Especially its role becomes indispendable during the embryonic development stage but lacks in adults with some exceptions like while wound repair and menstrual cycle. It is a tightly regulated process and relies on the cascade of several molecular signaling pathways with the involvement of many effectors like vascular endothelial growth factor (VEGF), fibroblast growth factor (FGF), platelet-derived growth factor (PDGF), insulin-like growth factor (IGF) etc...
2017: Current Drug Metabolism
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