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https://www.readbyqxmd.com/read/28326409/chondrogenesis-in-the-synovial-tissue-is-associated-with-the-onset-of-pseudogout-after-total-knee-arthroplasty
#1
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
#2
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
#3
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
https://www.readbyqxmd.com/read/28274876/hypotonic-stress-promotes-atp-release-reactive-oxygen-species-production-and-cell-proliferation-via-trpv4-activation-in-rheumatoid-arthritis-rat-synovial-fibroblasts
#4
Fen Hu, Zhenhai Hui, Wei Wei, Jianyu Yang, Ziyuan Chen, Bu Guo, Fulin Xing, Xinzheng Zhang, Leiting Pan, Jingjun Xu
Rheumatoid arthritis (RA) is a chronic and systemic autoimmune-disease with complex and unclear etiology. Hypotonicity of synovial fluid is a typical characteristic of RA, which may play pivotal roles in RA pathogenesis. In this work, we studied the responses of RA synovial fibroblasts to hypotonic stress in vitro and further explored the underlying mechanisms. Data showed that hyposmotic solutions significantly triggered increases in cytosolic calcium concentration ([Ca(2+)]c) of synoviocytes. Subsequently, it caused rapid release of ATP, as well as remarkable production of intracellular reactive oxygen species (ROS)...
March 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28263785/nociceptive-neuronal-fc-gamma-receptor-i-is-involved-in-igg-immune-complex-induced-pain-in-the-rat
#5
Haowu Jiang, Xinhua Shen, Zhiyong Chen, Fan Liu, Tao Wang, Yikuan Xie, Chao Ma
Antigen-specific immune diseases such as rheumatoid arthritis are often accompanied by pain and hyperalgesia. Our previous studies have demonstrated that Fc-gamma-receptor type I (FcγRI) is expressed in a subpopulation of rat dorsal root ganglion (DRG) neurons and can be directly activated by IgG immune complex (IgG-IC). In this study we investigated whether neuronal FcγRI contributes to antigen-specific pain in the naïve and rheumatoid arthritis model rats. In vitro calcium imaging and whole-cell patch clamp recordings in dissociated DRG neurons revealed that only the small-, but not medium- or large-sized DRG neurons responded to IgG-IC...
March 2, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28261963/phosphoproteome-analysis-of-synoviocytes-from-patients-with-rheumatoid-arthritis
#6
Masayoshi Katano, Manae S Kurokawa, Kosuke Matsuo, Kayo Masuko, Naoya Suematsu, Kazuki Okamoto, Toshikazu Kamada, Hiroshi Nakamura, Tomohiro Kato
AIM: To explore disease-associated molecules in rheumatoid arthritis (RA), we comprehensively analyzed phosphoproteins purified from RA synoviocytes. METHOD: Synoviocytes were obtained from three patients with RA and three patients with osteoarthritis (OA). Profiles of phosphoproteins purified from the synoviocytes were compared by two-dimensional differential gel electrophoresis (2D-DIGE) between the RA and OA groups. Protein spots with significantly different phosphorylation levels were identified by mass spectrometry...
March 5, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28258822/intra-articular-lentivirus-mediated-gene-therapy-targeting-cracm1-for-the-treatment-of-collagen-induced-arthritis
#7
Shuang Liu, Takeshi Kiyoi, Erika Takemasa, Kazutaka Maeyama
Abnormal store-operated calcium uptake has been observed in peripheral T lymphocytes of rheumatoid arthritis (RA) patients, and sustained intracellular calcium signalling is known to mediate the functions of many types of immune cells. Thus, it is hypothesized that regulating calcium entry through CRACM1 (the pore-forming subunit of calcium release-activated calcium (CRAC) channels; also known as ORAI1) may be beneficial for the management of RA. Localized CRACM1 knockdown in the joints and draining lymph nodes (DLNs) of mice with collagen-induced arthritis (CIA) was achieved via lentiviral-based delivery of shRNA targeting mouse CRACM1...
February 11, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28246893/crystal-arthritides-gout-and-calcium-pyrophosphate-arthritis-part%C3%A2-3-treatment
#8
REVIEW
S Schlee, L C Bollheimer, T Bertsch, C C Sieber, P Härle
The treatment of gout is based on several principles. Symptom control and termination of the inflammatory process are important early goals, whereas the urate level should be lowered in the long term to prevent further gout attacks and complications. The non-pharmacological approach is based on individually informing the patient on dietary measures and changes of life style. Besides physical measures, such as cold applications on the affected joint, various medications are available for treatment of an acute gout attack...
February 28, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/28243578/net-cholesterol-efflux-capacity-of-hdl-enriched-serum-and-coronary-atherosclerosis-in-rheumatoid-arthritis
#9
Michelle J Ormseth, Patricia G Yancey, Suguru Yamamoto, Annette M Oeser, Tebeb Gebretsadik, Ayumi Shintani, MacRae F Linton, Sergio Fazio, Sean S Davies, L Jackson Roberts, Kasey C Vickers, Paolo Raggi, Valentina Kon, C Michael Stein
BACKGROUND/OBJECTIVES: Cardiovascular (CV) risk is increased in patients with rheumatoid arthritis (RA), but not fully explained by traditional risk factors such as LDL and HDL cholesterol concentrations. The cholesterol efflux capacity of HDL may be a better CV risk predictor than HDL concentrations. We hypothesized that HDL's cholesterol efflux capacity is impaired and inversely associated with coronary atherosclerosis in patients with RA. METHODS: We measured the net cholesterol efflux capacity of apolipoprotein B depleted serum and coronary artery calcium score in 134 patients with RA and 76 control subjects, frequency-matched for age, race and sex...
December 2016: IJC Metabolic & Endocrine
https://www.readbyqxmd.com/read/28163961/the-adjuvant-use-of-calcium-fructoborate-and-borax-with-etanercept-in-patients-with-rheumatoid-arthritis-pilot-study
#10
Saad Abdulrahman Hussain, Sattar Jabir Abood, Faiq Isho Gorial
OBJECTIVE: This study was designed to evaluate the effects calcium fructoborate (CFB) and sodium tetraborate (NTB) as supplements in Iraqi patients with active rheumatoid arthritis (RA) maintained on etanercept. MATERIALS AND METHODS: A double-blind randomized placebo-controlled clinical trial with 60 days treatment period was carried out at Baghdad Teaching Hospital, Medical city, Baghdad, Iraq. Eighty RA patients were randomized into three groups to receive either 220 mg/day CFB, 55 mg/day NTB in capsule dosage form (equivalent to 6 mg elemental Boron), or placebo formula once daily...
January 2017: Journal of Intercultural Ethnopharmacology
https://www.readbyqxmd.com/read/28161119/monthly-oral-ibandronate-reduces-bone-loss-in-korean-women-with-rheumatoid-arthritis-and-osteopenia-receiving-long-term-glucocorticoids-a-48-week-double-blinded-randomized-placebo-controlled-investigator-initiated-trial
#11
Kichul Shin, Sung-Hwan Park, Won Park, Han Joo Baek, Yun Jong Lee, Seong Wook Kang, Jung-Yoon Choe, Wan-Hee Yoo, Yong-Beom Park, Jung-Soo Song, Seung-Geun Lee, Bin Yoo, Dae-Hyun Yoo, Yeong Wook Song
PURPOSE: Our aim was to investigate the efficacy of monthly oral ibandronate in Korean women with rheumatoid arthritis and reduced bone mineral density (BMD) receiving long-term glucocorticoids. METHODS: Patients (n = 167 women) were randomly assigned (1:1) to receive ibandronate 150 mg or placebo every 4 weeks. Patients had taken glucocorticoid (equivalent of daily prednisolone ≥5 mg) for 3 or more consecutive months before enrollment, and had a lumbar spine 1 to 4 (L1-L4) T-score of < -1...
February 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28134597/endogenous-bone-morphogenetic-protein-2-plays-a-role-in-vascular-smooth-muscle-cell-calcification-induced-by-interleukin-6-in-vitro
#12
Mingshu Sun, Qing Chang, Miaomiao Xin, Qian Wang, Hua Li, Jiaqi Qian
Systemic inflammation is involved in vascular calcification and cardiovascular disease which is the leading cause of mortality in rheumatoid arthritis (RA). A high level of serum interleukin (IL)-6 plays a key role in local and systemic inflammation in RA. However, the underlying mechanisms remain unclear. We established a human umbilical artery smooth muscle cell (HUASMC) culturing method to investigate the possible role of IL-6 on vascular calcification. HUASMCs were obtained from umbilical arteries of healthy neonates...
January 1, 2017: International Journal of Immunopathology and Pharmacology
https://www.readbyqxmd.com/read/28127640/ten-year-progression-of-coronary-artery-carotid-artery-and-aortic-calcification-in-patients-with-rheumatoid-arthritis
#13
Ju-Hua Liu, Ming-Yen Ng, Tommy Cheung, Ho-Yin Chung, Yan Chen, Zhe Zhen, Yuan Zou, Ka-Fung Mak, Pek-Lan Khong, Chak-Sing Lau, Hung-Fat Tse, Kai-Hang Yiu
Rheumatoid arthritis (RA) is associated with increased vascular calcification, although the rate of progress of calcification is uncertain. The aim of the study was to evaluate the progression of and the predictors for calcification in different vascular beds over 10 years. The 10-year actual coronary calcium score (CS) and 10-year predicted coronary CS, based on the pattern of the general population, were compared. Calcification of the coronary and carotid artery and the aorta was assessed by multi-detector computed tomography...
January 26, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28121216/left-ventricular-function-at-two-year-follow-up-in-treatment-naive-rheumatoid-arthritis-patients-is-associated-with-anti-cyclic-citrullinated-peptide-antibody-status-a-cohort-study
#14
B B Løgstrup, D Masic, T B Laurbjerg, J Blegvad, M Herly, L D Kristensen, G Urbonaviciene, A Hedemann-Nielsen, T Ellingsen
OBJECTIVES: In rheumatoid arthritis (RA), the role of autoimmunity, especially anti-cyclic citrullinated peptide antibody (anti-CCP) level, and the time-course of left ventricular (LV) function is unknown. The objective was to assess LV function and the amount of coronary calcium in relation to anti-CCP levels in a cohort of treatment-naive RA patients, and to assess changes in these parameters during a 2 year follow-up period. METHOD: Sixty-six steroid- and disease-modifying anti-rheumatic drug-naive RA patients were treated with methotrexate according to the Danish national guidelines...
January 25, 2017: Scandinavian Journal of Rheumatology
https://www.readbyqxmd.com/read/28097725/increased-cortical-porosity-in-women-with-hip-fracture
#15
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
#16
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
#17
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
#18
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
#19
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...
January 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/27989588/acute-phospholipid-microspherule-associated-arthritis-is-it-rare
#20
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
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