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https://www.readbyqxmd.com/read/28097725/increased-cortical-porosity-in-women-with-hip-fracture
#1
D Sundh, A G Nilsson, M Nilsson, L Johansson, D Mellström, M Lorentzon
BACKGROUND: Hip fractures cause increased mortality and disability and consume enormous healthcare resources. Only 46% of hip fracture patients have osteoporosis at the total hip according to dual-energy X-ray absorptiometry (DXA) measurement. Cortical porosity increases with ageing and is believed to be important for bone strength. OBJECTIVE: To investigate whether older women with hip fracture have higher cortical porosity than controls, and if so whether this difference is independent of clinical risk factors and areal bone mineral density (aBMD)...
January 18, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28018840/hand-impairment-in-systemic-sclerosis-various-manifestations-and-currently-available-treatment
#2
Amber Young, Rajaie Namas, Carole Dodge, Dinesh Khanna
Systemic sclerosis (SSc) is an autoimmune disease initially recognized by hand involvement due to characteristic Raynaud's phenomenon (RP), puffy hands, skin thickening, and contractures resembling claw deformities. SSc contributes to hand impairment through inflammatory arthritis, joint contractures, tendon friction rubs (TFRs), RP, digital ulcers (DU), puffy hands, skin sclerosis, acro-osteolysis, and calcinosis. These manifestations, which often co-exist, can contribute to difficulty with occupational activities and activities of daily living (ADL), which can result in impaired quality of life...
September 2016: Current Treatment Options in Rheumatology
https://www.readbyqxmd.com/read/28012936/results-of-daily-oral-dosing-with-up-to-60-000-international-units-iu-of-vitamin-d3-for-2-to-6-years-in-3-adult-males
#3
REVIEW
Patrick McCullough, Jeffrey Amend
In the 1930's and 1940's, vitamin D was reported to be an effective treatment for a number of diseases, including asthma, psoriasis, rheumatoid arthritis, rickets and tuberculosis. High doses were used, 60,000 to 300,000 IU a day for asthma, and 200,000 to 600,000 IU a day for rheumatoid arthritis. Toxicity from hypercalcemia occurred after prolonged oral dosing with these supraphysiologic doses. Assays for measuring vitamin D in the blood were not available, and blood levels of vitamin D associated with hypercalcemia were unknown...
December 21, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28008373/clinical-factors-disease-parameters-and-molecular-therapies-affecting-osseointegration-of-orthopedic-implants
#4
Hilal Maradit Kremers, Eric A Lewallen, Andre J van Wijnen, David G Lewallen
Total hip and knee arthroplasty are effective interventions for management of end-stage arthritis. Indeed, about 7 million Americans are currently living with artificial hip and knee joints. The majority of these individuals, however, will outlive their implants and require revision surgeries, mostly due to poor implant osseointegration and aseptic loosening. Revisions are potentially avoidable with better management of patient-related risk factors that affect the osseointegration of orthopedic implants. In this review, we summarize the published clinical literature on the role of demographics, biologic factors, comorbidities, medications and aseptic loosening risk...
September 2016: Current Molecular Biology Reports
https://www.readbyqxmd.com/read/27989618/pharmacokinetic-interactions-between-pelubiprofen-and-eperisone-hydrochloride-a-randomized-open-label-crossover-study-of-healthy-korean-men
#5
Ju-Hee Ryu, Joo-Il Kim, Hyung Son Kim, Gyu-Jeong Noh, Kyung-Tae Lee, Eun Kyoung Chung
PURPOSE: Pelubiprofen is a novel nonsteroidal anti-inflammatory, analgesic, and antipyretic drug with at least similar efficacy and better tolerability compared with other nonsteroidal anti-inflammatory, analgesic, and antipyretic drugs such as naproxen and aceclofenac. Eperisone hydrochloride is a centrally acting muscle relaxant that performs by blocking calcium channels. The combined use of pelubiprofen and eperisone hydrochloride is increasingly anticipated to promote the clinical effectiveness of pelubiprofen in relieving musculoskeletal symptoms of osteoarthritis, rheumatoid arthritis, and low back pain...
December 15, 2016: Clinical Therapeutics
https://www.readbyqxmd.com/read/27989588/acute-phospholipid-microspherule-associated-arthritis-is-it-rare
#6
Guillaume Coiffier, Jean-David Albert, François Robin, Pascal Guggenbuhl
Joint fluid analysis must be performed as part of the diagnostic workup for acute arthritis, most notably to rule out septic arthritis and to allow the identification of crystal-induced arthritis (gout or calcium pyrophosphate deposition disease), which is one of the most common causes. However, the detection of monosodium urate or calcium pyrophosphate microcrystals is not the only goal of the polarized light microscopy examination of joint fluid. Other, less common microcrystals may be found. Among them are phospholipid microspherules, which are easily recognized microscopically based on their Maltese cross-like appearance...
December 15, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27939801/first-cases-of-calcium-pyrophosphate-deposition-disease-after-zoledronic-acid-therapy
#7
Guillaume Couture, Faustine Delzor, Haleh Bagheri, Joëlle Micallef, Adeline Ruyssen-Witrand, Michel Laroche
A number of medications promote the development of calcium pyrophosphate deposition disease (CPDD). We report 2 cases of acute CPDD after intravenous zoledronic acid therapy. Case #1: a 63-year-old female was admitted for vertebroplasty at the site of an osteoporotic fracture. She received an intravenous infusion of zoledronic acid 5mg on the day after the procedure. Acute CPDD developed in her right knee 24hours later. Findings from joint aspiration and standard radiography confirmed the diagnosis. Case #2: this 79-year-old woman had a history of CPDD was on glucocorticoid and hydroxychloroquine therapy for lupus...
December 6, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27898996/calcium-pyrophosphate-deposition-disease-and-associated-medical-co-morbidities-a-national-cross-sectional-study-of-us-veterans
#8
Crystal Kleiber Balderrama, Ann K Rosenthal, Daniel Lans, Jasvinder A Singh, Christie M Bartels
OBJECTIVE: Calcium pyrophosphate crystal deposition disease (CPDD) is a common cause of acute and chronic arthritis, yet there are few large epidemiologic studies of CPDD. We sought to characterize CPDD in the national Veterans Affairs (VA) population. METHODS: Patients with International Classification of Diseases, ninth revision (ICD-9) codes for CPDD seen at any VA medical center from 2010 through 2014 were matched by age and gender with control patients without CPDD, using data from the Department of Veterans Affairs Corporate Data Warehouse...
November 29, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27895169/critical-role-of-ltb4-blt1-in-il-23-induced-synovial-inflammation-and-osteoclastogenesis-via-nf-%C3%AE%C2%BAb
#9
Laura Bouchareychas, Eva M Grössinger, Mincheol Kang, Hong Qiu, Iannis E Adamopoulos
IL-23 activates the synthesis and production of leukotriene B4 (LTB4) in myeloid cells, which modulate inflammatory arthritis. In this study we investigated the role of LTB4 and its receptor LTB4R1 (BLT1) in synovial inflammation and osteoclast differentiation. Specifically, we used IL-23 in vivo gene transfer to induce arthritis in mice and showed that elevated serum LTB4 and synovial expression of 5-lipoxygenase correlated with increased disease severity by histological evaluation and paw swelling compared with GFP gene transfer controls...
January 1, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27870974/myocardial-perfusion-in-peripheral-raynaud-s-phenomenon-evaluation-using-stress-cardiovascular-magnetic-resonance
#10
Sophie Mavrogeni, Konstantinos Bratis, Loukia Koutsogeorgopoulou, Georgia Karabela, Efthymios Savropoulos, Gikas Katsifis, John Raftakis, George Markousis-Mavrogenis, Genovefa Kolovou
BACKGROUND: Peripheral Raynaud's phenomenon (RP) is either primary (PRP), without any coexisting disease or secondary (SRP), due to connective tissue diseases (CTD). We hypothesized that adenosine stress cardiovascular magnetic resonance (CMR) can assess myocardial perfusion in a population of PRP and SRP. PATIENTS-METHODS: Twenty CTDs, aged 30.6±7.5yrs., 16F/4M, including 9 systemic sclerosis (SSc), 4 systemic lupus erythematosus (SLE), 3 mixed connective tissue disease (MCTD), 2 polymyositis (PM) and 2 rheumatoid arthritis (RA), with SRP, under treatment with calcium blockers, were evaluated by stress CMR and compared with age-sex matched PRP and controls...
February 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27867381/a-critical-reappraisal-of-neutrophil-extracellular-traps-and-netosis-mimics-based-on-differential-requirements-for-protein-citrullination
#11
Maximilian F Konig, Felipe Andrade
NETosis, an antimicrobial form of neutrophil cell death, is considered a primary source of citrullinated autoantigens in rheumatoid arthritis (RA) and immunogenic DNA in systemic lupus erythematosus (SLE). Activation of the citrullinating enzyme peptidylarginine deiminase type 4 (PAD4) is believed to be essential for neutrophil extracellular trap (NET) formation and NETosis. PAD4 is therefore viewed as a promising therapeutic target to inhibit the formation of NETs in both diseases. In this review, we examine the evidence for PAD4 activation during NETosis and provide experimental data to suggest that protein citrullination is not a universal feature of NETs...
2016: Frontiers in Immunology
https://www.readbyqxmd.com/read/27855045/-four-corner-fusion-in-patients-with-wrist-arthritis
#12
María Francisca Vázquez-Alonso, Alberto Viñas-Silva
Scapholunate advance collapse (SLAC) and Scaphoid nonunion advance collapse (SNAC), are the two most common patterns of postraumatic wrist arthritis. SLAC wrist develops after attenuation, either traumatically or atraumatically, of the scapholunate ligament. Atraumatic causes of SLAC wrist include calcium pyrophosphate dehydrate deposition disease, reumathoid arthritis, neuropathic diseases, and b2-microglobulin asociated amyloid deposition diseases. On the other hand, SNAC wrist develops following a scahpoid fracture that has progressed to a nonunion...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27837341/crystal-identification-of-synovial-fluid-aspiration-by-polarized-light-microscopy-an-online-test-suggesting-that-our-traditional-rheumatologic-competence-needs-renewed-attention-and-training
#13
D Berendsen, T Neogi, W J Taylor, N Dalbeth, T L Jansen
Testing a reading exercise for identification of several typical crystal such as the negatively birefringent needle-shaped crystals that are under polarized light microscopy is the gold standard for diagnosing gout. The objective of this study was to assess current performance of crystal identification by professionals involved in examining synovial fluid in routine care. Rheumatologists, trainees, lab technicians, and other physicians with an interest in crystal arthritis completed an online test. The test consisted of 30 images: 8 monosodium urate (MSU) crystals, 5 calcium pyrophosphate (CPP), 4 cholesterol, 2 depot methylprednisolone, 2 calcium oxalate, 2 rice bodies, 1 hydroxyapatite, 1 liquid lipid, 1 fibrin, 1 Charcot-Leyden, and 5 different artifacts...
November 11, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27837109/characterization-of-the-syk-dependent-t-cell-signaling-response-to-an-altered-peptide
#14
Jeoung-Eun Park, Jeffrey A Rotondo, David L Cullins, David D Brand, Ae-Kyung Yi, John M Stuart, Andrew H Kang, Linda K Myers
Rheumatoid arthritis is an autoimmune disorder characterized by T cell dysregulation. We have shown that an altered peptide ligand (A9) activates T cells to use an alternate signaling pathway that is dependent on FcRγ and spleen tyrosine kinase, resulting in downregulation of inflammation. In the experiments described in this study, we have attempted to determine the molecular basis of this paradox. Three major Src family kinases found in T cells (Lck, Fyn, and Lyn) were tested for activation following stimulation by A9/I-A(q) Unexpectedly we found they are not required for T cell functions induced by A9/I-A(q), nor are they required for APL stimulation of cytokines...
December 15, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27834119/correlation-of-periodontal-disease-with-inflammatory-arthritis-in-the-time-before-modern-medical-intervention
#15
Bruce Rothschild
BACKGROUND: Controversy exists as to possible correlation of periodontal disease with rheumatoid arthritis and ankylosing spondylitis. Confounding factors may relate to stringency of inflammatory disease diagnosis and to effect on periodontal disease of therapeutic intervention for rheumatoid arthritis. These were investigated. METHODS: Forty-five individuals with documented rheumatoid arthritis, spondyloarthropathy and calcium pyrophosphate deposition disease were examined from the Hamann-Todd collection of human skeletons compiled between 1912 and 1938, in addition to fifteen individuals contemporarily incorporated in the collection were examined for tooth loss, cavity occurrence, average and maximum lingual and buccal depth of the space between tooth and bone, periosteal reaction, serpentine bone resorption, abscess formation and root penetration of bone surface and analyzed by analysis of variance (ANOVA)...
November 11, 2016: Journal of Periodontology
https://www.readbyqxmd.com/read/27832822/sarcoidosis-presenting-as-granulomatous-myositis-in-a-16-year-old-adolescent
#16
Amir B Orandi, Eric Eutsler, Cole Ferguson, Andrew J White, Maleewan Kitcharoensakkul
BACKGROUND: Sarcoidosis is a multi-system disease characterized by the presence of non-caseating epithelioid granulomas in affected tissues, including skeletal muscle. These organized collections of immune cells have important pathophysiologic action including cytokine production leading to inflammation as well as enzymatic conversion of cholecalciferol to calcitriol via 1-α hydroxylase. There are limited reports of isolated granulomatous myositis causing hypercalcemia in pediatric patients...
November 10, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27824546/citrullination-in-rheumatoid-arthritis-a-process-promoted-by-neutrophil-lysis
#17
REVIEW
Tal Gazitt, Christian Lood, Keith B Elkon
Anti-citrullinated protein antibodies (ACPAs) are highly specific serologic markers for rheumatoid arthritis (RA) and can pre-date clinical disease onset by up to 10 years, also predicting erosive disease. The process of citrullination, the post-translational conversion of arginine to citrulline residues, is mediated by peptidylarginine deiminase (PAD) enzymes present in polymorphonuclear cells (PMNs). Calcium ions (Ca(2+)) are required for PAD activation, but the intracellular Ca(2+) concentration in normal cells is much lower than the optimal Ca(2+) concentration needed for PAD activation...
October 31, 2016: Rambam Maimonides Medical Journal
https://www.readbyqxmd.com/read/27804000/novel-sila-amide-derivatives-of-n-acetylcysteine-protects-platelets-from-oxidative-stress-induced-apoptosis
#18
Manoj Paul, Ram M Thushara, Swamy Jagadish, Uzma I Zakai, Robert West, Kempaiah Kemparaju, Kesturu S Girish
Oxidative stress-induced platelet apoptosis is one among the many causes for the development and progression of many disorders like cardiovascular diseases, arthritis, Alzheimer's disease and many chronic inflammatory responses. Many studies have demonstrated the less optimal effect of N-acetyl cysteine (NAC) in oxidative stress-induced cellular damage. This could be due to its less lipophilicity which makes it difficult to enter the cellular membrane. Therefore in the present study, lipophilic sila-amide derivatives (6a and 6b) synthesized through the reaction of NAC with 3-Aminopropyltrimethylsilane and aminomethyltrimethylsilane were used to determine their protective property against oxidative stress-induced platelet apoptosis...
November 1, 2016: Journal of Thrombosis and Thrombolysis
https://www.readbyqxmd.com/read/27803833/coexistent-pseudogout-and-mycobacterium-avium-intracellulare-septic-arthritis-in-a-patient-with-hiv-and-esrd
#19
Wais Afzal, Omer M Wali, Kelly L Cervellione, Bhupinder B Singh, Farshad Bagheri
Pseudogout is a crystal-induced arthropathy characterized by the deposition of calcium pyrophosphate dihydrate (CPPD) crystals in synovial fluid, menisci, or articular cartilage. Although not very common, this entity can be seen in patients with chronic kidney disease (CKD). Septic arthritis due to Mycobacterium avium-intracellulare (MAI) is a rare entity that can affect immunocompromised patients such as those with acquired immunodeficiency syndrome (AIDS) or those who are on immunosuppressive drugs. Here, we describe a 51-year-old female who presented with fever, right knee pain, swelling, warmth, and decreased range of motion for several days...
2016: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/27789216/artesunate-suppresses-rankl-induced-osteoclastogenesis-through-inhibition-of-plc%C3%AE-1-ca-2-nfatc1-signaling-pathway-and-prevents-ovariectomy-induced-bone-loss
#20
Xiangzhou Zeng, Yueyang Zhang, Song Wang, Keng Wang, Lei Tao, Min Zou, Nana Chen, Jiake Xu, Shuwen Liu, Xiaojuan Li
Bone lytic diseases including osteoporosis, rheumatoid arthritis, and bone metastatic tumors affect hundreds of millions people worldwide. Targeting over-activated osteoclasts as an anti-resorptive treatment becomes an important strategy to treat osteolytic diseases. Artesunate is a compound derived from artemisinin (qinghaosu) and has been used to treat malaria and rheumatoid arthritis clinically in China, but its role in osteolysis is unknown. Here, we found that artesunate could suppress RANKL-induced osteoclastogenesis and bone resorption from 1...
January 15, 2017: Biochemical Pharmacology
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