Search for: rheumatoid arthritis    methotrexate    autoimmune disease    biomarker    gene expression    GWAS    HLA genes    non-HLA genes   

ID PMID Title PublicationDate abstract
28618891 Musculoskeletal manifestations as determinants of quality of life impairment in patients w 2018 Feb Objective The objective of this study was to identify determinants of health-related quality of life (HRQoL) impairment in patients with systemic lupus erythematosus (SLE). Methods Overall, 101 SLE patients were recruited; 37 healthy subjects and 35 rheumatoid arthritis (RA) patients served as controls. HRQoL was evaluated using three patient reported outcomes (PROs): the Short Form-36 version 2 (SF-36v2) health survey, the fatigue scale version 4 (FACITv4) and the Heath Assessment Questionnaire (HAQ). A large set of demographic and clinical variables, including SLE arthritis subtypes, was evaluated searching for factors independently associated with worse QoL. Multivariate models were applied to identify factors independently associated with outcomes. Bonferroni's corrected p values < 0.05 were considered significant. Results SLE patients showed worse results than healthy controls ( p < 0.01) in all SF-36v2 domains and, with reference to the mental QoL, also than RA patients ( p < 0.01). Jaccoud's deformities, active arthritis, and fibromyalgia were the only factors independently associated with worse results in both physical and mental components summary of the SF-36v2 ( p < 0.01) and FACITv4 fatigue scale ( p < 0.01). Fragility fractures, deformities, and active arthritis negatively affected disability perception measured by the HAQ ( p < 0.01). No statistically significant differences in perceived HRQoL were highlighted between patients with deforming and erosive arthritis. However, they had significantly worse results than patients with non-deforming non-erosive arthritis across all investigated PROs ( p < 0.01). Conclusion In order to limit musculoskeletal manifestations as a source of impaired QoL in SLE patients, therapeutic strategies targeted to successfully manage active arthritis and fibromyalgia and to prevent deforming damage are needed.
26481198 Role of vitamin D supplementation in improving disease activity in rheumatoid arthritis: A 2017 Jul AIM: The aim of this exploratory study is to estimate the relationship between vitamin D (vit D) deficiency and active rheumatoid arthritis (RA), and the role of supplementation in improving disease activity. METHOD: A randomized recruitment, consent screening, open-label interventional study was conducted in patients who fulfilled American College of Rheumatology/European League Against Rheumatism 2010 criteria for diagnosing RA and on stable disease-modifying anti-rheumatic drugs (DMARDs) for 3 months. Serum vit D levels and Disease Activity Score of 28 joints/C-reactive protein (DAS28-CRP) disease activity status were estimated at the first visit. Subjects with low vit D levels and DAS28-CRP > 2.6 were supplemented with vit D for 12 weeks, and were assessed for improvement in disease activity and serum vit D levels. RESULTS: One hundred and fifty RA patients of mean age 49 ± 12.1 years, mean duration of illness 78 ± 63 months, and on treatment with DMARDs for 44 ± 39 months were recruited for the study. Of these, 73 (49%) subjects were found to have DAS28-CRP > 2.6 and serum vit D below 20 ng/mL. The patients received vit D supplement of 60 000 IU/week for 6 weeks, followed by 60 000 IU/month for a total duration of 3 months. Disease activity and vit D status were assessed for 59 (80.8%) patients who reported at the end of 12 weeks of treatment. Mean DAS28-CRP of these patients showed a statistically significant improvement from 3.68 ± 0.93 at baseline to 3.08 ± 1.11 after supplementation (P = 0.002). Serum vit D levels improved from 10.05 ± 5.18 to 57.21 ± 24.77 ng/mL (P < 0.001) during the period. CONCLUSION: Supplementation of vit D in RA patients with persisting disease activity and vit D deficiency contributed to significant improvement in disease activity within a short duration.
28919284 MMP-8 and TIMP-1 are associated to periodontal inflammation in patients with rheumatoid ar 2019 Jun BACKGROUND: Aim of this cross-sectional study was the investigation of associations between different rheumatoid arthritis (RA)-related blood parameters and periodontal condition as well as selected periodontal pathogenic bacteria in RA patients under methotrexate (MTX) immunosuppression. METHODS: Periodontal probing depth (PPD), bleeding on probing (BOP) and clinical attachment loss (CAL) were assessed. Periodontal condition was classified into: no/mild and moderate or severe periodontitis (P). Prevalence of selected periodontal pathogenic bacteria and concentration of matrix metalloproteinase 8 (MMP-8) was assessed from the gingival crevicular fluid (GCF) using PCR and ELISA, respectively. Blood samples were analyzed for the concentration of selected rheumatoid parameters. STATISTICAL ANALYSIS: t-test, Mann-Whitney-U-Test, exact Fisher tests or chi square test (p < 0.05). RESULTS: Fifty-six patients (mean age 55.07 years, 34 P, 22 no P) were included. While prevalence of periodontal pathogenic bacteria was higher in P patients, no substantial association of bacteria with blood parameters was found. In periodontal diseased participants, MMP-8 concentration in GCF (6.22 ± 7.01 vs. 15.99 ± 13.49; p < 0.01) and blood (2.60 ± 3.57 vs. 5.52 ± 5.92; p < 0.01) was increased, while no correlation between GCF and blood was found (Spearman's rho: 0.175; p = 0.23). Furthermore, higher blood concentrations of MMP-8 and tissue inhibitor of MMP (TIMP-1) were detected in patients with increased periodontal inflammation (BOP positive, p < 0.01). CONCLUSION: Periodontal inflammation appears associated to MMP-8 and TIMP-1 in blood. Thereby, clinical interaction between periodontal conditions, periodontal pathogenic bacteria and RA-related cytokines remain unclear.
28194545 To stop the erosion of hope: the DMARD category and the place of semantics in modern rheum 2017 Apr The category of disease-modifying anti-rheumatic drugs (DMARDs) emerged in the 1970s to describe drugs capable of altering the long-term destructive course of arthritis. It became a core concept in rheumatology's reorientation towards pharmaceuticals in the late twentieth century. By examining the earliest use of the term "disease-modifying" in scientific publications, this paper identifies the drugs that the category described when it first emerged. Leaning on systematic reviews of each of these drugs towards the end of their career in rheumatology, it then establishes that posterity would not recognize any of these early DMARDs as capable of altering the long-term course of the disease. The notion of disease-modifying drugs was thus originally used to categorize drugs that were not disease-modifying. Instead of interpreting this inconsistency as an anomaly, the paper argues that the DMARD category may have gained currency because it allowed a number of actors to respond pragmatically to an ongoing crisis in the pharmacological approach to treating arthritis. The term offered to conjure prospects of disease-modifying effects regardless of drugs' actual capacities, and thus to semantically solve the tensions between needs and means that characterized rheumatology at the time. While shedding light on a pivotal moment in the history of rheumatology, the paper also models an approach to understanding drug categories as meaning-making mechanisms by which people can mediate the sometimes uneasy connections that exist between medical practice and science.
29098475 Educational website incorporating rheumatoid arthritis patient needs for Latin American an 2017 Dec Health education is fundamental in the management of RA patients. This study explored patient needs for educational material appropriate for RA patients in our region through a website. This study includes seven focus groups and semi-structured interviews across 4 countries (Argentina, Chile, Colombia, and Mexico) with 71 RA patients. Transcripts were analyzed by anthropologists using qualitative analysis (QA), resulting in themes and subthemes to be developed. Five themes and over 50 subthemes of interest were identified by patients. Grouped into categories as follows: (1) knowing the disease, (2) living with arthritis, (3) treatment and therapies for RA, (4) psychosocial support, and (5) information for families. A response was written by the team in plain Spanish on patient subthemes of interest including additional areas that the team considered relevant. Three videos for YouTube were produced: on patient-doctor relationships, patients at work, and home and at the clinic. Illustrations in a comic book format on RA diagnosis were created. The educational site on RA of PANLAR can be found at htpp://artritisreumatoide.cl. This project accomplished a comprehensive list of RA patient interests, revealing the complex relationship between the information on the disease, the experience of a chronic disease, and the way in which patients approach, conceive, and manage their disease. We expect to gather information on how the website will be used in the future for patients and their families and maintain and improve the website as well as adapt its content to different socioeconomic realities.
29247126 Preference phenotypes to facilitate shared decision-making in rheumatoid arthritis. 2018 May OBJECTIVE: Implementing treat-to-target (TTT) strategies requires that patients with rheumatoid arthritis (RA) and their rheumatologists decide on how best to escalate care when indicated. The objective of this study was to develop preference phenotypes to facilitate shared decision-making at the point of care for patients failing methotrexate monotherapy. METHODS: We developed a conjoint analysis survey to measure the preferences of patient with RA for triple therapy, biologics and Janus kinase (JAK) inhibitors. The survey included seven attributes: administration, onset, bothersome side effects, serious infection, very rare side effects, amount of information and cost. Each choice set (n=12) included three hypothetical profiles. Preference phenotypes were identified by applying latent class analysis to the conjoint data. RESULTS: 1273 participants completed the survey. A five-group solution was chosen based on progressively lower values of the Akaike and Bayesian information criteria. Members of the largest group (group 3: 38.4%) were most strongly impacted by the cost of the medication. The next largest group (group 1: 25.8%) was most strongly influenced by the risk of bothersome side effects. Members of group 2 (11.2%) were also risk averse, but were most concerned with the risk of very rare side effects. Group 4 (6.6%) strongly preferred oral over parenteral medications. Members of group 5 (18.0%) were most strongly and equally influenced by onset of action and the risk of serious infections. CONCLUSIONS: Treatment preferences of patients with RA can be measured and represented by distinct phenotypes. Our results underscore the variability in patients' values and the importance of using a shared decision-making approach to implement TTT.
28425173 Twenty-Year Outcome and Association Between Early Treatment and Mortality and Disability i 2017 Aug OBJECTIVE: To describe the outcome in patients with rheumatoid arthritis (RA) over 20 years from symptom onset, and to assess the association between early treatment (with disease-modifying antirheumatic drugs/steroids) and mortality and disability during follow-up. METHODS: Patients recruited to the Norfolk Arthritis Register (NOAR) between 1990 and 1994 who met the 2010 American College of Rheumatology/European League Against Rheumatism RA criteria at baseline were included in this analysis. Demographic and clinical variables were collected at baseline and at years 1-3, 5, 7, 10, 15, and 20. Disease activity (swollen joint count [SJC]/tender joint count [TJC]), disability (Health Assessment Questionnaire disability index [HAQ DI]), and mortality over 20 years were determined. Associations between treatment group (early treatment [ET], treatment ≤6 months after symptom onset; late treatment [LT], treatment >6 months after symptom onset; never treatment [NT], no treatment) and mortality and disability were assessed using weighted pooled logistic regression and weighted multilevel mixed-effects linear regression, respectively. Inverse weights were used to account for confounding by indication and censoring. RESULTS: This study included 602 patients with RA (median age 56 years [interquartile range 44-68 years]; 65.9% women). The median SJCs and TJCs were low during the follow-up period (1-3 swollen joints and 3-6 tender joints). The median HAQ DI score increased after year 1 but remained at low/moderate levels (median 1.25 after year 10). The risk of mortality was reduced in the ET and LT groups compared with that in the NT group. The ET group and the NT group had comparable HAQ DI scores during the follow-up period (β = 0.03, 95% confidence interval [95% CI] -0.06, 0.12), while the HAQ DI score was increased in the LT group (for LT versus NT, β = 0.10 [95% CI 0.02, 0.17]). CONCLUSION: The results of this study indicate the importance of early treatment with regard to the long-term outcomes in patients with RA.
28956118 HAQ score is an independent predictor of sustained remission in patients with rheumatoid a 2017 Dec We assessed potential predictors of sustained remission for 2 years according to the Disease Activity Score in 28 joints (DAS28)-CRP in patients with rheumatoid arthritis (RA). We obtained data for 290 RA outpatients, from July 2009 to September 2012. Sociodemographic data and answers to questionnaires were collected in face-to-face interviews. Remission was defined according to DAS28-CRP. Sustained remission was defined as meeting criteria for remission in the annual assessment for two consecutive years. Predictive factors of sustained remission according to DAS28-CRP were assessed by univariate and multivariate analyses. Of the 290 RA patients, the baseline remission level, according to DAS28-CRP, was 54.5%. During 2 years of follow-up, the sustained remission rate was 24.5%. RA patients who achieved sustained remission, according to DAS28-CRP, were younger, and had a shorter duration of symptoms, longer period of education, higher monthly income, lower Health Assessment Questionnaire (HAQ) score, lower physician global assessment, lower patient global assessment, lower patient pain assessment, and higher EQ-5D at baseline. Multivariate analyses showed that the baseline HAQ score was independently associated with sustained remission for 2 years according to DAS28-CRP (OR 0.298, 95% CI 0.115-0.770; p = 0.012). A lower HAQ score at baseline was an independent predictor of sustained remission at 2 years, according to DAS28-CRP. Thus, HAQ scores could be useful when stratifying patients according to risk for flare-ups in the clinic.
28684239 Association of vascular function and estimated cardiovascular risk in patients with rheuma 2017 Sep OBJECTIVES: Rheumatoid arthritis (RA) patients should receive cardiovascular (CV) risk assessment. For this purpose CV risk calculators are available. In addition, parameters of vascular function can be measured and used for risk prediction. Aim of the present study was to assess the association of these two concepts. METHODS: 287 RA patients (58.4±12.6 years) and 232 controls (49.9±13.4 years) were included in this cross-sectional study. We calculated 10 year CV risk with SCORE and QRISK2. For SCORE we used the recommended multiplier of 1.5 in eligible RA patients and estimated the risk also in patients younger than 40 years (mSCORE (0-65)). Augmentation index (AIx) and central pulse pressure (PP), markers of vascular integrity and CV risk, were assessed by pulse wave analysis (PWA). Primary endpoint was the correlation of AIx and the estimated CV risk using mSCORE (0-65). RESULTS: In RA patients AIx showed a statistically significant correlation with mSCORE (0-65) (rho=0.3374; p<0.0001) and QRISK2 (rho=0.3307; p<0.0001). The correlations of central PP with mSCORE (0-65) (rho=0.4692; p<0.0001) and QRISK2 (rho=0.5828; p<0.0001) were also statistically significant. Increasing quartiles of central PP were associated with an increased odds of being in the "high risk" category according to SCORE (OR 2.18; 95% CI 1.58-3.01) or QRISK2 (OR 2.18; 95% CI 1.75-2.72). In control patients we also found a correlation of AIx and central PP with SCORE (0-65) and QRISK2. CONCLUSIONS: Parameters of central haemodynamics correlate with calculated CV risk. However, both do not give exactly the same information. The question arises whether a combination of both concepts would result in an improved CV risk prediction.
28213564 Seven-year tolerability profile of glucocorticoids use in early rheumatoid arthritis: data 2017 Nov OBJECTIVE: To explore the 7-year tolerability profile of glucocorticoids (GC) for early rheumatoid arthritis (RA). METHODS: We examined data for 602 patients with RA from the early arthritis Etude et Suivi des POlyarthrites Indifférenciées Récentes (ESPOIR) cohort (<6 months disease duration) stratified into two groups: with or without GC treatment at least once during follow-up (median 7 years (IQR 0.038-7.65)). The main outcome was a composite of death, cardiovascular disease (including myocardial ischaemia, cerebrovascular accident and heart failure), severe infection and fracture. RESULTS: Among the 602 patients with RA (476 women (79%), mean age 48±12 years), 386 with GC (64.1%) received low-dose prednisone (mean 3.1±2.9 mg/day for the entire follow-up): 263 started GC during the first 6 months (68%), and the mean duration of total GC treatment was 1057±876 days. As compared with patients without GC (216 (35.9%)), those with GC showed greater use of non-steroidal anti-inflammatory drugs, synthetic and biological disease-modifying antirheumatic drugs and had more active disease disability, higher C reactive protein and anticitrullinated protein antibody levels. Among 65 events (7 deaths, 14 cardiovascular diseases, 19 severe infections and 25 fractures), 44 and 21 occurred in patients with and without GC (p=0.520). Infections were more frequent, although not significantly, in patients with than without GC (p=0.09). On weighted Cox proportional-hazards analysis, with use of propensity score and inverse-probability-of-treatment weighting, and including age, gender, history of hypertension and GC treatment, outcomes did not differ with and without GC (p=0.520; HR=0.889; 95% CI 0.620 to 1.273). CONCLUSIONS: This 7-year analysis of the ESPOIR cohort supports the good safety profile of very low-dose GC for early active RA.
28737121 The impact of cancer development on the risk of mycobacterial diseases among rheumatoid ar 2017 Sep Mycobacterial diseases are prevalent in cancer and rheumatoid arthritis (RA) patients, especially those receiving tumor necrosis factor-α inhibitor (TNFi). However, the impact of cancer development on the risk of mycobacterial diseases among RA patients is unknown. Data from the Taiwan National Health Insurance Research Database were used to conduct a retrospective study to assess the occurrence of mycobacterial diseases in RA patients developing cancer (cancer-positive), those using TNFi (TNFi-exposure), those with cancer and using TNFi (cancer-TNFi-comb), and those without cancer and not using TNFi (cancer-TNFi-free). Cancer and TNFi exposure were time-dependent, and independent risk factors of mycobacterial diseases were assessed by Cox regression. Among 1344 RA patients diagnosed during 2000-2013, 68 (5·1%) developed cancer before their end points. The incidence rates of mycobacterial diseases in the cancer-positive (n = 56), TNFi-exposure (n = 290), cancer-TNFi-comb (n = 12), and cancer-TNFi-free (n = 986) subgroups were 6·7, 2·0, 7·6, and 1·3 per 1000 person-years, respectively. As compared with the cancer-TNFi-free group, the risk for mycobacterial diseases increased for the TNFi-exposure group (adjusted HR = 3·6, 95% confidence interval (95% CI) 1·1-11·5, P = 0·032) and remained high for cancer-positive (adjusted HR = 14·6, 95% CI 3·3-63·7, P < 0·001) after adjustment. This study suggested that cancer development increased the risk of mycobacterial diseases in RA patients, and risk assessment for this subgroup should be considered.
28242302 The feature selection approach for evaluation of potential rheumatoid arthritis markers us 2017 May 15 BACKGROUND: The selection of the most representative mass profiles, in rheumatoid arthritis (RA) serum samples was developed. This allows for selection and identification of potential biomarkers in RA serum samples. METHODS: The RA and controls samples were analyzed using MALDI-TOF. Two different protein elution procedures utilizing ZipTips (E1 and E2) were examined. The statistical evaluation of data was performed using different feature selection (FS) methods in combination with different classifiers, while identification of selected masses was performed using MALDI-TOF-TOF. RESULTS: Utilization of proposed statistical strategy allowed for the selection of different masses according to FS method and elution procedure. Obtained masses were further subjected for targeted identification. The panel of proteins were identified as potential markers. The role of these proteins was discussed in relation to pathomechanism of RA. CONCLUSION: Application of advanced biostatistical analysis of obtained MALDI-TOF datasets, resulted with targeted selection of potential RA biomarkers. Five proteins were identified due the E1 procedure, and six proteins were identified due the E2 procedure, respectively. The panel of identified proteins suggest that presented statistical methodology and proteomic strategy was correct and gave valid results. Obtained results may contribute to development of clinically useful multicomponent diagnostic tool.
28061837 Metacarpal bone loss in patients with rheumatoid arthritis estimated by a new Digital X-ra 2017 Jan 6 BACKGROUND: The Digital X-ray Radiogrammetry (DXR) method measures the cortical bone thickness in the shafts of the metacarpals and has demonstrated its relevance in the assessment of hand bone loss caused by rheumatoid arthritis (RA). The aim of this study was to validate a novel approach of the DXR method in comparison with the original version considering patients with RA. METHOD: The study includes 49 patients with verified RA. The new version is an extension of the BoneXpert method commonly used in pediatrics which has these characteristics: (1) It introduces a new technique to analyze the images which automatically validates the results for most images, and (2) it defines the measurement region relative to the ends of the metacarpals. The BoneXpert method measures the Metacarpal Index (MCI) at the metacarpal bone (II to IV). Additionally, the MCI is quantified by the DXR X-posure System. RESULTS: The new version correctly analyzed all 49 images, and 45 were automatically validated. The standard deviation between the MCI results of the two versions was 2.9% of the mean MCI. The average Larsen score was 2.6 with a standard deviation of 1.3. The correlation of MCI to Larsen score was -0.81 in both versions, and there was no significant difference in their ability to detect erosions. CONCLUSION: The new DXR version (BoneXpert) validated 92% of the cases automatically, while the same good correlation to RA severity could be presented compared to the old version.
27558097 A longitudinal, qualitative study exploring sustained adherence to a hand exercise program 2017 Sep PURPOSE: This study explores the experience of participants taking part in a hand exercise programme for people with rheumatoid arthritis with a focus on adherence. The exercise programme was tested in a randomised controlled trial. This parallel qualitative study will inform future implementation into clinical practice. METHOD: Twenty-seven semi-structured interviews from 14 participants were undertaken at two time points (4 and 12 months after randomisation). We collected data of participants' experiences over time. This was guided by an interview schedule. Interview data were analysed using interpretative phenomenological analysis which is informed by phenomenological and hermeneutic theory. We recruited participants from National Health Service rheumatology and therapy departments. RESULTS: At 4 months, 11/14 participants reported continuing with the exercises. By 12 months, 7/13 participants still reported exercising. The ability to establish a routine determined whether participants adhered to the exercise programme. This was sometimes influenced by practical issues. We also identified facilitators and barriers to regular exercise in the themes of the following: the therapeutic encounter, perceived benefit of exercises, attitude of mind, confidence, and unpredictability. CONCLUSIONS: Establishing a routine was an important step towards participants being able to exercise independently. Therapists provided participants with skills to continue to exercise while dealing with changes in symptoms and schedules. Potential barriers to long-term exercise adherence need to be taken into account and addressed for successful implementation of this programme. Implications for Rehabilitation Behavioural change components such as the use of an exercise planner (stating intentions of where, when and how), daily diary sheets, and joint goal setting enhance adherence to a hand exercise programme for RA by helping to establish routines. Exercise routines need to be flexible enough to fit in with life and symptom changes whilst delivering a sufficient dosage. Therapists facilitate this process by using behavioural components alongside more commonly used aspects of care (assessment, education, advice, and encouragement) to enable people with RA to become independent exercisers.
28442212 Effects of underwater ultrasound therapy on pain, inflammation, hand function and quality 2017 May OBJECTIVES: To investigate the effects of underwater ultrasound (US) therapy in 48 patients with moderately active rheumatoid arthritis (disease activity score in 28 joints [DAS28]>3.2 and<5.1). METHODS: Patients randomly assigned to the ultrasound group (n=25) received underwater continuous ultrasound therapy to both wrists and hands for 7min per session with an intensity of 0.7W/cm(2) for 10 sessions. The control group (n=23) received sham treatment under the same conditions. At baseline, at the end of treatment (end of Week 2) and at the follow-up visit (Week 14), the following outcomes were evaluated: disease activity (erythrocyte sedimentation rate [ESR], C-reactive protein [CRP], tender and swollen joint counts, pain on a visual analog scale, DAS28, hand function (fist making, wrist extension and flexion, hand grip strength) and quality of life (Health Assessment Questionnaire [HAQ]). RESULTS: A significant decrease in C-reactive protein at the end of Week 2 and Week 14 compared to control group (mean between-group difference at 2 weeks=-5.77, 95% CI=-10.86 to -0.68, mean between-group difference at 14 weeks=-5.07, 95% CI=-10.13 to -0.01), and non-significant decrease in DAS28 was observed. By the end of treatments at the end of week 2, ultrasound alleviated pain significantly (mean between-group difference at two weeks=-8.35 95% CI=-16.12 to -0.58), as well as improved left wrist extension compared to the control group (mean between-group difference at 14 weeks=4.35, 95% CI=1.09-7.60). CONCLUSION: Underwater ultrasound therapy was better than sham treatment at the end of 2 weeks of treatment, but not at long term (14 weeks) in patients with rheumatoid arthritis. CLINICAL TRIAL REGISTRATION NUMBER: NCT02706028 (https://clinicaltrials.gov/ct2/show/NCT02706028).
28967710 Personalized diet and exercise recommendations in early rheumatoid arthritis: A feasibilit 2018 Mar BACKGROUND: Physical activity and diet have a positive influence on disease activity and cardiovascular risk in patients with rheumatoid arthritis (RA). OBJECTIVE: We tested the feasibility and effect of a brief individualized counselling intervention on physical activity levels and fitness, and dietary intake, compared with standard of care. METHODS: Thirty patients with inflammatory arthritis (<1 year duration) were assigned to standard of care or the intervention, which consisted of individualized visits with a dietetic intern and physiotherapist at two time points, to review age-specific strategies on diet and exercise. Primary outcomes included anthropometric measurements (height, weight, waist and hip circumference), nutritional intake, physical activity (pedometer steps) and physical fitness. Disease activity measures and biochemical testing (blood pressure measurement, inflammatory markers, cholesterol profile and random glucose) were collected. The changes in these outcomes from baseline to 6 months were assessed using paired t-tests between groups. RESULTS: Thirteen patients in the intervention group and 10 in the control group completed the study. There were non-significant trends in improvements in physical activity, low-density lipoprotein cholesterol level and nutritional intake (vitamin C, iron, fibre, vitamin A and folate) in the intervention group. CONCLUSIONS: Poor enrolment and high dropout rates in this short-term study highlighted the difficulty of behavioural change. Those continuing in the study and who received the intervention demonstrated a non-significantly improved activity level and nutritional intake that may benefit long-term outcomes.
28779302 Skeletal complications of rheumatoid arthritis. 2017 Oct Rheumatoid arthritis (RA) is associated with local and systemic inflammation that induces many changes in the skeletal health. Locally, periarticular bone loss and juxta-articular bone erosions may occur while joint ankylosis, generalized bone loss, osteoporosis, and fractures may develop secondary to inflammation. The aim of this narrative review is to summarize the clinical evidence for abnormal skeletal health in RA, the effects of disease modifying anti-rheumatic drugs (DMARDS) on bone health, and the effects of drugs for the prevention or treatment of osteoporosis in the RA population.
28533505 Automated Quantification of Early Bone Alterations and Pathological Bone Turnover in Exper 2017 May 22 The assessment of bone damage is required to evaluate disease severity and treatment efficacy both in arthritis patients and in experimental arthritis models. Today there is still a lack of in vivo methods that enable the quantification of arthritic processes at an early stage of the disease. We performed longitudinal in vivo imaging with [(18)F]-fluoride PET/CT before and after experimental arthritis onset for diseased and control DBA/1 mice and assessed arthritis progression by clinical scoring, tracer uptake studies and bone volume as well as surface roughness measurements. Arthritic animals showed significantly increased tracer uptake in the paws compared to non-diseased controls. Automated CT image analysis revealed increased bone surface roughness already in the earliest stage of the disease. Moreover, we observed clear differences between endosteal and periosteal sites of cortical bone regarding surface roughness. This study shows that in vivo PET/CT imaging is a favorable method to study arthritic processes, enabling the quantification of different aspects of the disease like pathological bone turnover and bone alteration. Especially the evaluation of bone surface roughness is sensitive to early pathological changes and can be applied to study the dynamics of bone erosion at different sites of the bones in an automated fashion.
28880683 RANKL: A therapeutic target for bone destruction in rheumatoid arthritis. 2018 Jan Rheumatoid arthritis (RA) is a chronic inflammatory disorder characterized by progressive joint destruction. Recent studies have indicated the critical involvement of osteoclasts in bone destruction in RA. The osteoclast differentiation factor receptor activator of NF-κB ligand (RANKL), which belongs to the tumor necrosis factor superfamily, plays a critical role in osteoclast differentiation and bone destruction in RA. Denosumab, an antibody against human RANKL, efficiently suppressed the progression of bone erosion in RA patients in randomized controlled studies, and is considered as a putative therapeutic option for preventing bone destruction in RA.
28098403 MiR-338-5p Promotes Inflammatory Response of Fibroblast-Like Synoviocytes in Rheumatoid Ar 2017 Aug Our purpose is to study the roles of microRNA-338-5p (miR-338-5p) on the proliferation, invasion, and inflammatory response of fibroblast-like synoviocytes (SFs) in rheumatoid arthritis patients by regulating SPRY1. The target relationship between miR-338-5p and SPRY1 was validated through luciferase reporter system. The expression of miR-338-5p and SPRY1 in synovial tissues and synovial cells were detected using RT-PCR and western blot. The mimics and inhibitors of miR-338-5p were transfected into SFs. MTT, Transwell, and ELISA assays were used to analyze cell proliferation, invasiveness, and the secreted extracellular pro-inflammatory cytokines (such as IL-1a, IL-6, COX2) levels of SFs. MiR-338-5p was highly expressed in rheumatoid arthritis tissues and cells, and directly down-regulated the expression of SPRY1 in the SFs of rheumatoid arthritis patients. Cell proliferation, invasiveness and the expression level of pro-inflammatory cytokines in synovial cells increased after the transfection of miR-338-5p mimics, while the proliferation, invasion and expression level of pro-inflammatory cytokines decreased after the transfection of miR-338-5p inhibitors. In conclusion,miR-338-5p promoted the proliferation, invasion and inflammatory reaction in SFs of rheumatoid arthritis by directly down-regulating SPRY1 expression. J. Cell. Biochem. 118: 2295-2301, 2017. © 2017 Wiley Periodicals, Inc.