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arthritis calcium

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https://www.readbyqxmd.com/read/28500564/calcium-signaling-from-normal-b-cell-development-to-tolerance-breakdown-and-autoimmunity
#1
REVIEW
Patrice Hemon, Yves Renaudineau, Marjolaine Debant, Nelig Le Goux, Sreya Mukherjee, Wesley Brooks, Olivier Mignen
Maintenance of self-tolerance of auto-reactive lymphocytes is a fundamental mechanism to prevent the onset of autoimmune diseases. Deciphering the mechanisms involved in the deregulations leading to tolerance disruption and autoimmunity is still a major area of interest to identify new therapeutic targets and options. Ca(2+) signaling plays a major role in B cell normal development and is therefore finely tuned by B cell receptor (BCR)-dependent and independent pathways. Developmental changes in the characteristics of BCR-dependent Ca(2+) signals as well as the modulation of basal intracellular concentration ([Ca(2+)]i) contribute strongly to self-tolerance maintaining mechanisms responsible for the physical or functional elimination of autoreactive B cells such as clonal deletion, receptor editing, and anergy...
May 13, 2017: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/28473097/acr-appropriateness-criteria-%C3%A2-chronic-extremity-joint-pain-suspected-inflammatory-arthritis
#2
Jon A Jacobson, Catherine C Roberts, Jenny T Bencardino, Marc Appel, Erin Arnold, Steven J Baccei, R Carter Cassidy, Eric Y Chang, Michael G Fox, Bennett S Greenspan, Soterios Gyftopoulos, Mary G Hochman, Douglas N Mintz, Joel S Newman, Zehava S Rosenberg, Nehal A Shah, Kirstin M Small, Barbara N Weissman
Evaluation for suspected inflammatory arthritis as a cause for chronic extremity joint pain often relies on imaging. This review first discusses the characteristic osseous and soft tissue abnormalities seen with inflammatory arthritis and how they may be imaged. It is essential that imaging results are interpreted in the context of clinical and serologic results to add specificity as there is significant overlap of imaging findings among the various types of arthritis. This review provides recommendations for imaging evaluation of specific types of inflammatory arthritis, including rheumatoid arthritis, seronegative spondyloarthropathy, gout, calcium pyrophosphate dihydrate disease (or pseudogout), and erosive osteoarthritis...
May 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/28460421/calreticulin-inhibits-inflammation-induced-osteoclastogenesis-and-bone-resorption
#3
Charla R Fischer, Maya Mikami, Hiroshi Minematsu, Saqib Nizami, Heon Goo Lee, Danielle Stamer, Neel Patel, Do Yu Soung, Jung-Ho Back, Lee Song, Hicham Drissi, Francis Y Lee
Osteoclasts play key roles in bone remodeling and pathologic osteolytic disorders such as inflammation, infection, bone implant loosening, rheumatoid arthritis, metastatic bone cancers, and pathological fractures. Osteoclasts are formed by the fusion of monocytes in response to receptor activators of NF-ĸB-ligand (RANKL) and macrophage colony stimulating factor 1 (M-CSF). Calreticulin (CRT), a commonly known intracellular protein as a calcium-binding chaperone, has an unexpectedly robust anti-osteoclastogenic effect when its recombinant form is applied to osteoclast precursors in vitro or at the site of bone inflammation externally in vivo...
April 29, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28457098/crystal-induced-arthropathy-in-elderly-patients-hospitalized-for-acute-conditions
#4
Andrew Villion, Zeev Arinzon, Jacob Feldman, Oded Kimchi, Yitshal Berner
BACKGROUND: Arthritis and arthralgia are painful symptoms experienced by many elderly patients during hospitalization. Crystal-induced arthritis (CIA) is one of the most common causes of arthritis worldwide and represents the most common cause of acute arthritis in the elderly. OBJECTIVES: To determine the incidence of both acute new onset or acute exacerbation of CIA among elderly patients hospitalized due to an acute medical illness. METHODS: This study comprised 85 patients...
March 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/28445420/vitamin-d-and-calcium-are-required-during-denosumab-treatment-in-osteoporosis-with-rheumatoid-arthritis
#5
Yukio Nakamura, Takako Suzuki, Tomohiko Yoshida, Hideshi Yamazaki, Hiroyuki Kato
The aim of this 12-month retrospective study was to evaluate differences in the outcomes of denosumab alone or denosumab combined with vitamin D and calcium supplementation in patients having osteoporosis (OP) with rheumatoid arthritis (RA). Patients were divided into the denosumab monotherapy group (denosumab group, 22 cases) or denosumab plus vitamin D supplementation group (combination group, 21 cases). We measured serum bone alkaline phosphatase (BAP), N-terminal propeptide of type 1 collagen (P1NP), tartrate-resistant acid phosphatase (TRACP)-5b, and urinary N-terminal telopeptide of type-I collagen (NTX) at baseline, 1 week, and 1, 2, 4, 6, 8, and 12 months...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28439057/-calcium-and-bone-metabolism-across-women-s-life-stages-osteoporosis-in-female-patients-with-rheumatoid-arthritis
#6
Takefumi Furuya
Female patients with rheumatoid arthritis(RA)are at high risk for osteoporosis and fractures. In Japanese female patients with RA, age, disability, daily prednisolone dose, history of total knee replacement, and low bone mineral density are known to be risk factors for fractures, and more than 70% are reported to be vitamin D deficiency.
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28429293/topical-delivery-of-fenoprofen-calcium-via-elastic-nano-vesicular-spanlastics-optimization-using-experimental-design-and-in-vivo-evaluation
#7
Dalia Ali Farghaly, Ahmed A Aboelwafa, Manal Y Hamza, Magdy I Mohamed
The aim of this study was to investigate the potential of surfactant-based nanovesicular system (spanlastics) for topical delivery of fenoprofen calcium (FPCa) to eliminate its oral gastrointestinal adverse effects. FPCa-loaded spanlastics were prepared by thin film hydration (TFH) technique according to a full factorial design to investigate the influence of formulation variables on the drug entrapment efficiency (%EE), particle size (PS), deformability index (DI), and the % drug released after 24 h through the cellulose membrane (Q24h) using Design-Expert® software...
April 20, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28428266/kca1-1-channels-regulate-%C3%AE-1-integrin-function-and-cell-adhesion-in-rheumatoid-arthritis-fibroblast-like-synoviocytes
#8
Mark R Tanner, Michael W Pennington, Teresina Laragione, Pércio S Gulko, Christine Beeton
Large-conductance calcium-activated potassium channel (KCa1.1; BK, Slo1, MaxiK, KCNMA1) is the predominant potassium channel expressed at the plasma membrane of fibroblast-like synoviocytes isolated from the synovium of patients with rheumatoid arthritis (RA-FLS). It is a critical regulator of RA-FLS migration and invasion and therefore represents an attractive target for the therapy of RA. However, the molecular mechanisms by which KCa1.1 regulates RA-FLS invasiveness have remained largely unknown. Here, we demonstrate that KCa1...
April 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28424907/the-added-value-of-synovial-fluid-centrifugation-for-monosodium-urate-and-calcium-pyrophosphate-crystal-detection
#9
D Boumans, M E Hettema, H E Vonkeman, R G Maatman, M A van de Laar
The aim of the study was to assess the added value of synovial fluid (SF) centrifugation for microscopic monosodium urate (MSU) and calcium pyrophosphate (CPP) crystal detection in patients with arthritis. This is a prospective observational study using SF samples from joints of patients undergoing joint arthrocentesis. Two blinded observers assessed the SF smears by polarized light microscopy for the presence of crystals before as well as after centrifugation. SF samples were collected from 98 patients with arthritis...
April 19, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28407303/rifampicin-reverses-nicardipine-effect-inducing-uncontrolled-essential-hypertension
#10
Elena-Mihaela Cordeanu, Sébastien Gaertner, Alix Faller, Corina Mirea, Jean-Marc Lessinger, Veronique Kemmel, Dominique Stephan
Dihydropyridine calcium-channel blockers are a known substrate for the cytochrome P450 isoform 3A4. Rifampicin, an antitubercular agent, is one of the most potent inducers of hepatic and intestinal CYP3A4 thus increasing dihydropyridine metabolism. We report a case of a 67-year-old hypertensive female treated with a 4-drug antihypertensive regimen including a dihydropyridine (nicardipine 50mg bid), who was admitted for septic arthritis of the knee requiring antibiotic treatment with teicoplanin 400mg od and rifampicin 600mg bid...
April 13, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28400731/il-1-inhibition-may-have-an-important-role-in-treating-refractory-kawasaki-disease
#11
REVIEW
Perrine Dusser, Isabelle Koné-Paut
Kawasaki disease (KD) is an acute inflammatory vasculitis occurring in young children before 5 years and representing at this age, the main cause of acquired heart disease. A single infusion of 2 g/kg of intravenous immunoglobulins along with aspirin has reduced the frequency of coronary artery aneurysms from 25 to 5%. However, 10-20% of patients do not respond to standard treatment and have an increased risk of cardiac complications and death. The development of more potent therapeutic approaches of KD is an urgent need...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28399787/diagnostic-modalities-for-distal-radioulnar-joint
#12
S Jens, T Luijkx, F F Smithuis, M Maas
The first imaging modality in patients suspected of distal radioulnar joint pathology should be conventional radiography to exclude or diagnose wrist pathology including osteoarthritis, rheumatoid arthritis, calcium pyrophosphate deposition disease, (healed) fractures, or impaction syndromes. When conventional radiography is inconclusive, high resolution 3 Tesla magnetic resonance imaging is advised. We provide a broad overview of the literature regarding the use of intra-articular contrast both with computed tomography (CTA) or magnetic resonance imaging (MRA)...
May 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28366425/osteoporosis-in-the-women-s-health-initiative-another-treatment-gap
#13
Maryam Sattari, Jane A Cauley, Cynthia Garvan, Karen C Johnson, Michael J LaMonte, Wenjun Li, Marian Limacher, Todd Manini, Gloria E Sarto, Shannon D Sullivan, Jean Wactawski-Wende, Rebecca J Beyth
BACKGROUND: Osteoporotic fractures are associated with high morbidity, mortality, and cost. METHODS: We performed a post hoc analysis of the Women's Health Initiative (WHI) clinical trials (CT) data to assess osteoporosis treatment and identify participant characteristics associated with utilization of osteoporosis medication(s) after new diagnoses of osteoporosis and/or fracture. Information from visits prior to and immediately subsequent to the first fracture event or osteoporosis diagnosis were evaluated for medication use...
March 30, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28357106/persistent-arthralgia-vomiting-and-hypercalcemia-as-the-initial-manifestations-of-hyperthyroidism-a-case-report
#14
Jingfang Liu, Xulei Tang, Jianguo Cheng, Xiaomei Yang, Yan Wang
A 53-year-old woman presented with persistent edema and pain of the metacarpophalangeal and proximal interphalangeal joints and the wrist, knee and ankle joints, with more recent intermittent nausea and vomiting. Treatment for rheumatoid arthritis and osteoarthritis was ineffective. No clinical manifestations typical of hyperthyroidism were observed. The results of the thyroid function tests were as follows: Thyroid-stimulating hormone, 0.003 µIU/ml; triiodothyronine (T3), 4.44 ng/ml;, thyroxine (T4) >30 µg/dl; free T3, 14...
February 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28356052/the-limitations-of-gram-stain-microscopy-of-synovial-fluid-in-concomitant-septic-and-crystal-arthritis
#15
Paul Stirling, Mohammed Tahir, Henry Dushan Atkinson
BACKGROUND: Rapid diagnosis of septic arthritis from Gram-stain microscopy is limited by an inherent false-negative rate of 25-78%. The presence of concomitant crystal arthritis in 5% of cases represents a particular diagnostic challenge. OBJECTIVE: This study aims to investigate the effects that a concomitant crystal arthropathy have on the ability of Gram-stain microscopy of synovial fluid to diagnose a septic arthritis. METHODS: This is a 12-year retrospective cohort study...
March 29, 2017: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/28349197/performance-of-the-2015-american-college-of-rheumatology-european-league-against-rheumatism-gout-classification-criteria-in-thai-patients
#16
Worawit Louthrenoo, Kanon Jatuworapruk, Panomkorn Lhakum, Nuttaya Pattamapaspong
To evaluate the sensitivity and specificity of the 2015 American College of Rheumatology/European League Against Rheumatism (ACR/EULAR) gout classification criteria in Thai patients presenting with acute arthritis in a real-life setting. Data were analyzed on consecutive patients presenting with arthritis of less than 2 weeks duration. Sensitivity and specificity were calculated by using the presence of monosodium urate (MSU) crystals in the synovial fluid or tissue aspirate as gold standard for gout diagnosis...
May 2017: Rheumatology International
https://www.readbyqxmd.com/read/28336154/socioeconomic-and-therapy-factor-influence-on-self-reported-fatigue-anxiety-and-depression-in-rheumatoid-arthritis-patients
#17
Mirjana Lapčević, Mira Vuković, Branislav S Gvozdenović, Vesna Mioljević, Snežana Marjanović
INTRODUCTION: Fatigue, anxiety and depression are very frequent symptoms in patients with rheumatoid arthritis (RA). GOALS: In this study we evaluated the influence of socioeconomic characteristics, therapy and comorbidities on the self-reported high fatigue, anxiety and depression in patients with RA. METHOD: Multicenter cross-sectional study was performed in 22 health institutions in Serbia during the period from April-August 2014 in population of older RA patients...
February 27, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28326409/chondrogenesis-in-the-synovial-tissue-is-associated-with-the-onset-of-pseudogout-after-total-knee-arthroplasty
#18
Ryosuke Sato, Shunji Nakano, Tomoya Takasago, Masaru Nakamura, Masahiro Kashima, Takashi Chikawa, Daisuke Hamada, Tomohiro Goto, Koichi Sairyo
Postoperative pseudogout after total knee arthroplasty (TKA) is very rare, and its physical findings are very similar to infectious symptoms. In pseudogout, the mechanism underlying the deposition of calcium pyrophosphate dehydrate crystals remains unclear. Here, we report the histologic findings in a pseudogout attack in the late postoperative period after TKA. She had acute onset of arthritis of the knee 2 years after TKA. Histologic examination showed significant neutrophil infiltration. Interestingly, chondrogenesis was noted in the synovial tissue, and calcium pyrophosphate dehydrate crystals were synthesized mainly at the site of chondrogenesis, suggesting a potential mechanism underlying the occurrence of pseudogout after TKA...
September 2016: Arthroplasty Today
https://www.readbyqxmd.com/read/28290112/protecting-bone-health-in-pediatric-rheumatic-diseases-pharmacological-considerations
#19
REVIEW
Yujuan Zhang, Diana Milojevic
Bone health in children with rheumatic conditions may be compromised due to several factors related to the inflammatory disease state, delayed puberty, altered life style, including decreased physical activities, sun avoidance, suboptimal calcium and vitamin D intake, and medical treatments, mainly glucocorticoids and possibly some disease-modifying anti-rheumatic drugs. Low bone density or even fragility fractures could be asymptomatic; therefore, children with diseases of high inflammatory load, such as systemic onset juvenile idiopathic arthritis, juvenile dermatomyositis, systemic lupus erythematosus, and those requiring chronic glucocorticoids may benefit from routine screening of bone health...
March 13, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28288894/endogenous-inspired-biomineral-installed-hyaluronan-nanoparticles-as-ph-responsive-carrier-of-methotrexate-for-rheumatoid-arthritis
#20
Md Mahmudul Alam, Hwa Seung Han, Shijin Sung, Jin Hee Kang, Keum Hee Sa, Hasan Al Faruque, Jungwan Hong, Eon Jeong Nam, In San Kim, Jae Hyung Park, Young Mo Kang
Methotrexate (MTX), an anchor drug for rheumatoid arthritis (RA), has been suffered from refractoriness and high toxicity limiting effective dosage. To mitigate these challenges, the ability to selectively deliver MTX to arthritis tissue is a much sought-after modality for the treatment of RA. In this study, we prepared mineralized nanoparticles (MP-HANPs), composed of PEGylated hyaluronic acid (P-HA) as the hydrophilic shell, 5β-cholanic acid as the hydrophobic core, and calcium phosphate (CaP) as the pH-responsive mineral...
March 11, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
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