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Rheumatoid arthritis

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https://www.readbyqxmd.com/read/28636960/mechanisms-and-therapeutic-relevance-of-neuro-immune-communication
#1
REVIEW
Sangeeta S Chavan, Valentin A Pavlov, Kevin J Tracey
Active research at the frontiers of immunology and neuroscience has identified multiple points of interaction and communication between the immune system and the nervous system. Immune cell activation stimulates neuronal circuits that regulate innate and adaptive immunity. Molecular mechanistic insights into the inflammatory reflex and other neuro-immune interactions have greatly advanced our understanding of immunity and identified new therapeutic possibilities in inflammatory and autoimmune diseases. Recent successful clinical trials using bioelectronic devices that modulate the inflammatory reflex to significantly ameliorate rheumatoid arthritis and inflammatory bowel disease provide a path for using electrons as a therapeutic modality for targeting molecular mechanisms of immunity...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28636885/differential-changes-in-the-pharmacokinetics-of-statins-in-collagen-induced-arthritis-rats
#2
Chun-Han Lin, Ke-Wei Hsu, Chia-Hao Chen, Yow-Shieng Uang, Chun-Jung Lin
The elevated systemic levels of cytokines in rheumatoid arthritis (RA) can change the expression of metabolic enzymes and transporters. Given that statins are lipid-lowering agents frequently used in RA patients with concurrent cardiovascular diseases, the objective of the present study was to investigate the impacts of RA on the pharmacokinetics of statins of different disposition properties in rats with collagen-induced arthritis (CIA). The expression of metabolic enzymes and transporters in tissues of CIA rats were analyzed by RT-qPCR...
June 18, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28636643/neuromuscular-electrical-stimulation-prevents-skeletal-muscle-dysfunction-in-adjuvant-induced-arthritis-rat
#3
Koichi Himori, Daisuke Tatebayashi, Keita Kanzaki, Masanobu Wada, Håkan Westerblad, Johanna T Lanner, Takashi Yamada
Skeletal muscle weakness is a prominent feature in patients with rheumatoid arthritis (RA). In this study, we investigated whether neuromuscular electrical stimulation (NMES) training protects against skeletal muscle dysfunction in rats with adjuvant-induced arthritis (AIA). AIA was produced by intraarticular injection of complete Freund's adjuvant into the knees of Wistar rats. For NMES training, dorsiflexor muscles were stimulated via a surface electrode (0.5 ms pulse, 50 Hz, 2 s on/4 s off). NMES training was performed every other day for three weeks and consisted of three sets produced at three min intervals...
2017: PloS One
https://www.readbyqxmd.com/read/28636167/berberine-ameliorates-collagen-induced-arthritis-in-rats-by-suppressing-th17-cell-responses-via-inducing-cortistatin-in-the-gut
#4
Mengfan Yue, Yufeng Xia, Can Shi, Chunge Guan, Yunfan Li, Rui Liu, Zhifeng Wei, Yue Dai
Berberine, an isoquinoline alkaloid, has been reported to ameliorate various autoimmune diseases including rheumatoid arthritis by oral administration. However, its mechanism remains mysterious due to an extremely low bioavailability. The fact that berberine is easy to accumulate in gut, the largest endocrine organ in the body, attracts us to explore its anti-arthritic mechanism in view of the induction of intestinal immunosuppressive neuropeptides. In this study, berberine (200 mg/kg, i.g.) was shown to ameliorate collagen-induced arthritis in rats, which was manifested by the reduction of clinical signs and joint destruction, as well as marked down-regulation of Th17 cell frequency and IL-17 level in blood...
June 21, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28635960/somatic-mutations-in-clonally-expanded-cytotoxic-t-lymphocytes-in-patients-with-newly-diagnosed-rheumatoid-arthritis
#5
P Savola, T Kelkka, H L Rajala, A Kuuliala, K Kuuliala, S Eldfors, P Ellonen, S Lagström, M Lepistö, T Hannunen, E I Andersson, R K Khajuria, T Jaatinen, R Koivuniemi, H Repo, J Saarela, K Porkka, M Leirisalo-Repo, S Mustjoki
Somatic mutations contribute to tumorigenesis. Although these mutations occur in all proliferating cells, their accumulation under non-malignant conditions, such as in autoimmune disorders, has not been investigated. Here, we show that patients with newly diagnosed rheumatoid arthritis have expanded CD8+ T-cell clones; in 20% (5/25) of patients CD8+ T cells, but not CD4+ T cells, harbour somatic mutations. In healthy controls (n=20), only one mutation is identified in the CD8+ T-cell pool. Mutations exist exclusively in the expanded CD8+ effector-memory subset, persist during follow-up, and are predicted to change protein functions...
June 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28635309/rheumatoid-arthritis-is-associated-with-negatively-variable-impacts-on-domains-of-female-sexual-function-evidence-from-a-systematic-review-and-meta-analysis
#6
Qiuxiang Zhang, Congcong Zhou, Haoyang Chen, Qian Zhao, Lin Li, Yafei Cui, Biyu Shen
To systematically review the literature to identify the impact of rheumatoid arthritis (RA) on specific female sexual function domains. A meta-analysis was performed and the related literature were searched in MEDLINE, EMBASE, Cochrane Library, CNKI, CBM and Web of Science databases, and in reference lists of articles and systematic reviews. Score of the Female Sexual Function Index (FSFI) was used as the outcome measurement, and mean differences (MD) with 95% confidence intervals (CI) were calculated. Five studies were included, including 346 women with RA and 237 healthy female controls...
June 21, 2017: Psychology, Health & Medicine
https://www.readbyqxmd.com/read/28635179/changing-trends-in-opioid-use-among-u-s-rheumatoid-arthritis-patients
#7
Jeffrey R Curtis, Fenglong Xie, Christian Smith, Kenneth G Saag, Lang Chen, Timothy Beukelman, Melissa Mannion, Huifeng Yun, Stefan Kertesz
Introduction Opioid prescribing recently has come under intense scrutiny. However, longitudinal patterns of opioid prescription receipt in a population-based cohort of patients who have chronic pain, such as those with rheumatoid arthritis (RA), have not been well characterized. Methods We identified a cohort of RA patients based on 2006-2014 Medicare data and evaluated longitudinal time trends in regular opioid use (>=3 filled prescriptions in each 12 month interval). A separate analysis in 2014 assessed rheumatologist-specific variability in regular opioid prescription for RA patients...
June 21, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28635156/pyoderma-gangrenosum-and-underlying-diseases-in-japanese-patients-a-regional-long-term-study
#8
Sae Inoue, Jun-Ichi Furuta, Yasuhiro Fujisawa, Saori Onizawa, Shusaku Ito, Masayuki Sakiyama, Keiko Kobayashi, Toshiyuki Kanou, Shigeruko Iijima, Tsunao Ohi, Chimaki Okubo, Yoshihiro Moriyama, Naoko Okiyama, Manabu Fujimoto
Pyoderma gangrenosum (PG) is a chronic inflammatory disease of unknown cause that presents as an inflammatory and ulcerative disorder of the skin. PG is often associated with an underlying systemic disease. However, the frequencies of the underlying diseases are unclear in Japanese patients. In this retrospective, observational study, all patients diagnosed with PG who visited dermatology departments of nine regional hospitals in and around Ibaraki Prefecture were collected from 1982 to 2011 or 2014. The diagnoses of PG were based on the characteristic clinical and histological appearances and ruling out of infection...
June 21, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28635117/the-relationship-between-fish-consumption-and-disease-activity-in-rheumatoid-arthritis
#9
Sara K Tedeschi, Joan M Bathon, Jon T Giles, Tzu-Chieh Lin, Kazuki Yoshida, Daniel H Solomon
OBJECTIVE: To assess whether more frequent fish consumption is associated with lower RA disease activity scores among participants in an RA cohort. METHODS: We conducted a cross-sectional analysis using baseline data from participants in the Evaluation of Subclinical Cardiovascular Disease and Predictors of Events in RA (ESCAPE-RA) cohort study. Frequency of fish consumption was assessed by a baseline food frequency questionnaire assessing usual diet in the past year...
June 21, 2017: Arthritis Care & Research
https://www.readbyqxmd.com/read/28634699/cost-effective-analysis-of-disease-modifying-anti-rheumatic-drugs-in-rheumatoid-arthritis
#10
Ashit Syngle, Sudeep Kaur, Inderjeet Verma, Tanya Syngle, Vijaita Syngle
The main objective of the study was to perform the pharmacoeconomic analysis of synthetic disease-modifying anti-rheumatic drugs in rheumatoid arthritis patients. A prospective, observational study was conducted in 98 rheumatoid arthritis (RA) patients meeting 2010 Rheumatoid Arthritis Classification Criteria. Treatment-naive RA patients were initiated on synthetic disease-modifying anti-rheumatic drugs (DMARD/s) and followed up for 3 months. Average cost-effectiveness analysis was done by taking Health Assessment Questionnaire Disability Index (HAQ-DI) score as a measure of effectiveness...
June 21, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28634697/in-psoriatic-arthritis-dkk-1-and-pth-are-lower-than-in-rheumatoid-arthritis-and-healthy-controls
#11
Angelo Fassio, Luca Idolazzi, Ombretta Viapiana, Camilla Benini, Elisabetta Vantaggiato, Francesco Bertoldo, Maurizio Rossini, Davide Gatti
Psoriatic Arthritis (PsA) is characterized by bone erosive damage often associated with exuberant bone formation especially in enthesial sites. Dkk-1 and sclerostin are the main inhibitors of the WNT/β-catenin signaling pathway and play a key role in the regulation of both bone formation and resorption. We performed this study in order to compare the serum levels of the WNT-pathway regulators along with bone turnover markers (BTM) and parathyroid hormone (PTH) between three different groups: one group of female patients affected by PsA, one group of female patients affected by rheumatoid arthritis (RA), and healthy female controls (HC)...
June 20, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28634103/undetectable-mannose-binding-lectin-and-corticosteroids-increase-serious-infection-risk-in-rheumatoid-arthritis
#12
Graeme J Carroll, Krista Makin, Maxine Garnsey, Max Bulsara, Bronwyn V Carroll, Shona M Curtin, Erin M Allan, Andrew McLean-Tooke, Christine Bundell, Monica L Kemp, Pooja Deshpande, Dana Ihdayhid, Sophie Coleman, Tracie Easter, James Triplett, Timothy Disteldorf, C Helen Marsden, Michaela Lucas
BACKGROUND: Infection is the leading cause of death in rheumatoid arthritis (RA). Corticosteroid (CS) use is a known and important risk factor for serious infections (SIs). Mannose binding lectin (MBL) is a genetically determined component of the innate immune system implicated in neonatal infections. OBJECTIVE: Our aim was to determine whether MBL deficiency is a risk factor for SIs in RA and to compare it with CS use and also synthetic and biologic disease-modifying antirheumatic drug (DMARD) therapy...
June 17, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28633956/a-time-adjustable-pulsatile-release-system-for-ketoprofen-in-vitro-and-in-vivo-investigation-in-a-pharmacokinetic-study-and-an-ivivc-evaluation
#13
Haiying Wang, Lizhen Cheng, Haoyang Wen, Caiyan Li, Yuenan Li, Xiaoyu Zhang, Yongfei Wang, Yanyan Wang, Tuanjie Wang, Weisan Pan, Xinggang Yang
A time-adjustable pulsatile release system (TAPS) containing ketoprofen (KF) as an active pharmaceutical agent was developed having been designed for bedtime dosing and releasing drug in the early morning to control the symptoms of rheumatoid arthritis (RA). The formulation involved a tablet core (KF) and a control-release layer, and the coating membrane was composed of EC and Eudragit L100. A single-factor study, a central composite design and a response surface method were selected to optimize the formula and the optimum prescription was as follows: tablet core (KF 50mg, MCC 70mg, lactose 40mg, L-HPC 38mg), and film (EC 7...
June 17, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28633586/porphyromonas-gingivalis-and-its-lps-differentially-regulate-the-expression-of-peptidyl-arginine-deiminases-in-human-chondrocytes
#14
René Elkaim, Isaac Maximiliano Bugueno-Valdebenito, Nadia Benkirane-Jessel, Henri Tenenbaum
Periodontitis, an inflammatory disease initiated by Gram-negative bacteria such as Porphyromonas gingivalis ( Pg), is considered as a risk factor for rheumatoid arthritis (RA). Our study aimed to determine the effect of Pg and its LPS on the expression of peptidyl arginine deiminase isotypes (PADs) in human primary chondrocytes (HC). HCs were infected with Pg and activated by its LPS (LPS- Pg). The mRNA expression levels of human PADs (1, 2, 3, 4 and 6) and bacterial enzyme (PADPg) were quantified by RT-qPCR...
January 1, 2017: Innate Immunity
https://www.readbyqxmd.com/read/28632321/is-aggregatibacter-actinomycetemcomitans-the-missing-link-between-periodontitis-and-rheumatoid-arthritis
#15
David Polak
The impact of chronic conditions on the modern population is even more evident in view of a prolonged human life span. In addition, most individuals will probably simultaneously suffer from more than one chronic condition. As such, unveiling the pathogenesis of chronic diseases, as well as the causal factors that crosstalk between different conditions, is one of the greatest challenges faced by modern medicine. Two such conditions are periodontitis and rheumatoid arthritis (RA). This article is protected by copyright...
June 20, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28631779/recent-advances-in-nanomedicines-for-the-treatment-of-rheumatoid-arthritis
#16
REVIEW
Qin Wang, Xun Sun
Rheumatoid arthritis (RA) is a severe systemic inflammatory disease. It is often associated with serious cartilage destruction and massive inflammatory infiltration, which might ultimately cause disability, wide complications and reduced life quality. Current clinical treatments of RA show several drawbacks such as high doses, frequent administration and serious side effects. These limitations have motivated tremendous expansion of the research and application of nanomedicines in RA therapy. In this review, we summarize the cutting edge progress in nanomedicines for the treatment of RA and discuss the application of various targeting strategies...
June 20, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28631700/-polymorphism-in-the-regulatory-regions-%C3%B0-2578a-and-c936t-of-the-vascular-endothelial-growth-factor-vegf-a-gene-in-russian-women-with-rheumatoid-arthritis
#17
A V Shevchenko, V F Prokofyev, M A Korolev, N E Banshchikova, V I Konenkov
AIM: To analyze polymorphism in the regulatory regions of the vascular endothelial growth factor (VEGF) gene in female patients with rheumatoid arthritis (RA). SUBJECTS AND METHODS: The investigation enrolled 257 female patients with RA. A control group consisted of 297 women without chronic diseases. The investigators examined the single-nucleotide polymorphism of VEGF-А2578С in the promoter region (rs699947) and that of VEGF+С936Т 3 in the retranslated region (rs3025039) of the gene...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28631608/one-year-in-review-2017-pathogenesis-of-rheumatoid-arthritis
#18
Francesca Angelotti, Alice Parma, Giacomo Cafaro, Riccardo Capecchi, Alessia Alunno, Ilaria Puxeddu
Rheumatoid arthritis (RA) is a chronic inflammatory autoimmune disease influenced by both genetic and environmental factors. It has been postulated that a high-risk genetic background, in combination with epigenetic marks and environmental exposures, leads to a cascade of events inducing synovitis and consequent destructive arthritis. The clinical picture of joint involvement in RA is the result of chronic inflammation of the synovium, characterised by interactions of resident cells such as fibroblast-like synoviocytes (FLS) with cells of the innate (e...
May 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28631356/immune-tolerance-effect-in-mesenteric-lymph-node-lymphocytes-of-geniposide-on-adjuvant-arthritis-rats
#19
Zheng-Rong Zhang, Hong Wu, Rong Wang, Shu-Ping Li, Li Dai, Wen-Yu Wang
Rheumatoid arthritis (RA) is a systemic, Th1 cytokine-predominant autoimmune disease result in a chronic and inflammatory disorder. Geniposide (GE), an iridoid glycoside compound that is purified from Gardenia jasminoides Ellis, has antiinflammatory and other immunoregulatory effects, but its exact mechanism of actions on RA is unknown. The aim of this study was to elucidate antiinflammation effects of GE on adjuvant arthritis (AA) rats and its possible immune tolerance mechanisms. Male Sprague-Dawley rats were administered with GE (30, 60, and 120 mg/kg) orally from day 17 to 24 after immunization...
June 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28631066/rheumatoid-vasculitis-a-diminishing-yet-devastating-menace
#20
REVIEW
Shweta Kishore, Lisa Maher, Vikas Majithia
PURPOSE OF REVIEW: Rheumatoid vasculitis (RV) is an unusual complication of long-standing rheumatoid arthritis, which is characterized by the development of necrotizing or leukocytoclastic vasculitis involving small or medium-sized vessels. In this review, we aim to provide an update on the epidemiology, pathogenesis, clinical presentation, and management of this challenging extra-articular manifestation. RECENT FINDINGS: RV is heterogenous in its clinical presentation depending on the organ and size of blood vessels involved...
July 2017: Current Rheumatology Reports
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