Rheumatoid Arthritis
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2021 ◽  
Zi yu Gao ◽  
Zhan hao Chang ◽  
Tian Song ◽  
Dong fan Liu ◽  
Xin Li ◽  

Abstract Fibromyalgia (FM) is a confounding factor for diagnosing and assessing rheumatic disease activity. This study sought to assess the extent of this syndrome in rheumatoid arthritis (RA) patients at our rheumatology department. The RA patients were divided into 2 groups (RA with FM and RA without FM) according to the score of the FiRST questionnaire and modified 2016 criteria for FM. We compared the clinical data and disease activities of RA patients with and without FM. As a result, RA patients with FM showed higher levels of CRP, ESR, DAS28-ESR compared with RA patients without FM in both FiRST questionnaires and questionnaires developed to diagnose FM(2016 criteria).Furthermore, RA patients with FM showed higher levels of IgA compared to without FM. For the blood cells count, RA patients with FM showed higher levels of white blood cells, platelets and lower levels of hemoglobin compared with RA patients without FM. Only by FiRST Questionnaires, RA patients with FM showed higher levels of RF compared to without FM. However, all groups showed a similar pattern in anti-CCP and IgG, IgM. RA patients with FM showed lower levels of vitamin D (VD) and higher levels of interleukin (IL)-6 compared with RA patients without FM.In conclusion,FM is a common feature in RA, more associated with high values of disease activity such as ESR, CRP and DAS28-ESR.

Yongji Li ◽  
Wendi Yang ◽  
Feng Wang

Abstract Background Cell division control protein 42 (CDC42) is reported to be involved in multiple inflammation processes by regulating T cell differentiation, maintaining immune cell homeostasis, and altering their function, while no relevant studies explored its clinical role in patients with rheumatoid arthritis (RA). Therefore, this study aimed to explore the correlation of CDC42 with Th1 and Th17 cells and its association with disease risk, activity, and treatment outcomes of RA. Methods After the enrollment of 95 active RA patients and 50 healthy subjects (HC), their CDC42, Th1 cells, and Th17 cells were assayed by RT-qPCR and flow cytometry, accordingly. For RA patients only, CDC42 was also detected at W6, and W12 after treatment. The treatment response and remission status were evaluated at W12. Results Compared to HC, CDC42 was reduced (P < 0.001), while Th1 cells (P = 0.021) and Th17 cells (P < 0.001) were increased in RA patients. Besides, CDC42 was negatively correlated with Th17 cells (P < 0.001), erythrocyte sedimentation rate (ESR) (P = 0.012), C-reactive protein (P = 0.002), and disease activity score in 28 joints (DAS28) (P = 0.007), but did not relate to Th1 cells or other disease features (all P > 0.05) in RA patients. Furthermore, CDC42 was elevated during treatment in RA patients (P < 0.001). Moreover, CDC42 increment at W12 correlated with treatment response (P = 0.004). Besides, CDC42 elevation at W0 (P = 0.038), W6 (P = 0.001), and W12 (P < 0.001) also linked with treatment remission. Conclusion CDC42 has the potential to serve as a biomarker to monitor disease activity and treatment efficacy in patients with RA.

2021 ◽  
Vol 11 (23) ◽  
pp. 11400
Andra-Maria Mircea-Vicoveanu ◽  
Elena Rezuș ◽  
Florin Leon ◽  
Silvia Curteanu

This study is based on the consideration that the patients with rheumatoid arthritis and ankylosing spondylitis undergoing biological therapy have a higher risk of developing tuberculosis. The QuantiFERON-TB Gold test result was the output of the models and a series of features related to the patients and their treatments were chosen as inputs. A distribution of patients by gender and biological therapy, followed at the time of inclusion in the study, and at the end of the study, is made for both rheumatoid arthritis and ankylosing spondylitis. A series of classification algorithms (random forest, nearest neighbor, k-nearest neighbors, C4.5 decision trees, non-nested generalized exemplars, and support vector machines) and attribute selection algorithms (ReliefF, InfoGain, and correlation-based feature selection) were successfully applied. Useful information was obtained regarding the influence of biological and classical treatments on tuberculosis risk, and most of them agreed with medical studies.

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Ana Carolina Coelho-Oliveira ◽  
Ana Cristina Rodrigues Lacerda ◽  
Ana Lúcia Cristino de Souza ◽  
Luciana Martins de Mello Santos ◽  
Sueli Ferreira da Fonseca ◽  

Objective. Rheumatoid arthritis (RA) causes progressive changes in the musculoskeletal system compromising neuromuscular control especially in the hands. Whole-body vibration (WBV) could be an alternative for the rehabilitation in this population. This study investigated the immediate effect of WBV while in the modified push-up position on neural ratio (NR) in a single session during handgrip strength (HS) in women with stable RA. Methods. Twenty-one women with RA (diagnosis of disease: ±8 years, erythrocyte sedimentation rate: ±24.8, age: 54± 11 years, BMI: 28 ± 4   kg ·m-2) received three experimental interventions for five minutes in a randomized and balanced cross-over order: (1) control—seated with hands at rest, (2) sham—push-up position with hands on the vibration platform that remained disconnected, and (3) vibration—push-up position with hands on the vibration platform turned on (45 Hz, 2 mm, 159.73 m·s-2). At the baseline and immediately after the three experimental interventions, the HS, the electromyographic records (EMGrms), and range of motion (ROM) of the dominant hand were measured. The NR, i.e., the ratio between EMGrms of the flexor digitorum superficialis (FDS) muscle and HS, was also determined. The lower NR represented the greater neuromuscular efficiency (NE). Results. The NR was similar at baseline in the three experimental interventions. Despite the nonsignificance of within-interventions ( p = 0.0611 ) and interaction effect ( p = 0.1907 ), WBV exercise reduced the NR compared with the sham and control ( p = 0.0003 , F = 8.86 , η 2 = 0.85 , power = 1.00 ). Conclusion. Acute WBV exercise under the hands promotes neuromuscular modifications during the handgrip of women with stable RA. Thus, acute WBV exercise may be used as a preparatory exercise for the rehabilitation of the hands in this population. This trial is registered with trial registration 2.544.850 (ReBEC-RBR-2n932c).

2021 ◽  
Vol 12 ◽  
Tian-Ping Zhang ◽  
Hong-Miao Li ◽  
Qian Huang ◽  
Li Wang ◽  
Xiao-Mei Li

Abnormal vitamin D metabolism is involved in the pathogenesis of rheumatoid arthritis (RA). In this study, we evaluated the association of single nucleotide polymorphisms (SNPs) and methylation levels in vitamin D metabolic pathway genes with RA susceptibility. Ten SNPs in vitamin D metabolic pathway genes (CYP2R1, CYP24A1, VDR, CYP27B1) were genotyped in 477 RA patients and 496 controls by improved multiple ligase detection reaction (iMLDR). The methylation levels of the promoter regions of these genes were detected in 122 RA patients and 123 controls using Illumina Hiseq platform. We found that the CYP2R1 rs1993116 GA genotype, CYP27B1 rs4646536 GA genotype, rs4646536 A allele frequencies were significantly increased in RA patients when compared to controls. The decreased risk of rs1993116, rs4646536 was found under the dominant mode in RA patients. However, no significant association was found between CYP2R1 rs7936142, rs12794714, CYP24A1 rs2762934, rs6068816, rs2296239, rs2296241, VDR rs11574129, rs3847987 polymorphism, and RA susceptibility. The VDR, CYP27B1 methylation levels in RA patients were significantly lower than those in controls, while CYP2R1, CYP24A1 methylation levels were not associated with RA. There were no statistical associations between CYP2R1, CYP24A1, VDR, CYP27B1 methylation levels and their respective genotype in RA patients. In addition, plasma 25OHD level in RA patients was significantly lower than that in healthy controls. In summary, our results showed that CYP2R1, CYP27B1 genetic variations were associated with the genetic background of RA, while altered VDR, CYP27B1 methylation levels were related to the risk of RA.

2021 ◽  
Sofia Pazmino ◽  
Anikó Lovik ◽  
Annelies Boonen ◽  
Diederik De Cock ◽  
Veerle Stouten ◽  

Objective: To unravel disease impact in early RA patients by separately quantifying patient reported (PRF), clinical (CF) and laboratory (LF) factors. We put forward a new indicator, the discordance score (DS), for early identification and prediction of unmet patient outcomes in terms of future achievement of sustained remission and RA-related quality of life (QoL). Methods: We obtained factor scores via factor analysis in the CareRA trial, then calculated the DS between PRF and the mean of the other scores. We computed the improvement from baseline to week 104 (%) and area-under-the-curve (AUC) across time-points per factor score and compared these between patients achieving or not achieving sustained (week 16 to 104) remission (DAS28CRP<2.6) with ANOVA. Logistic and linear regressions respectively were used to predict SR based on previous factor and discordance scores, and QoL at year 1 and 2 based on DS at week 16. Results: PRF, CF and LF scores improved rapidly within 8 weeks. In patients achieving SR; PRF improved 57%, CF 90% and LF 27%, compared to 32% PRF (p=0.13), 77% CF (p<0.001) and 9% LF (p=0.36) score improvement in patients not achieving SR. Patients achieving SR had an AUC of 15.7, 3.4 and 4.8 for PRF, CF and LF respectively, compared to 33.2, 10.1, and 7.2 in participants not achieving SR (p<0.001 for all). Early factor and discordance scores were associated with later stage factor scores as well as QoL and PRF scores predicted SR (p<0.005 for PRF and DS). Conclusions: All factor scores improved rapidly, especially in patients achieving SR. Patient-reported burden improved less extensively. Discordance scores could help in predicting the need for additional non-pharmacological interventions to achieve SR and decrease disease impact.

2022 ◽  
Vol 27 (1) ◽  
pp. 30-32
Connie Sunderhaus

Chemosphere ◽  
2021 ◽  
pp. 133147
Li Chen ◽  
Qiuzi Sun ◽  
Shufen Peng ◽  
Tianqi Tan ◽  
Guibin Mei ◽  

2021 ◽  
Vol 46 ◽  
pp. S682-S683
K.A. Schönenberger ◽  
A.-C. Schüpfer ◽  
V.L. Gloy ◽  
Z. Stanga ◽  
N. Kägi-Braun ◽  

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