scholarly journals Correlation analysis between peripheral blood basophils and disease activity in patients with rheumatoid arthritis

2018 ◽  
Vol 16 ◽  
pp. 1721727X1775181
Author(s):  
Na Zhang ◽  
Ze-Ming Zhang ◽  
Xiao-Fei Wang

This study set out to investigate the number and the activation of peripheral blood basophils, and the correlation analysis between peripheral blood basophils and disease activity in patients with rheumatoid arthritis (RA). It was determined whether these indices could be used as a monitoring index of RA activation and thereby provide a new disease assessment method for RA. Using flow cytometry, the number and activation level of peripheral blood basophils were determined in RA patients compared with healthy donors. General clinical data were collected and laboratory indices of RA patients were analyzed. A correlation between the number and the activation of basophils was determined using the Disease Activity Score 28 (DAS28), anti-cyclic citrullinated peptide (CCP), erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP).The absolute count and percentage of peripheral blood basophils in RA patients were significantly lower than that of controls (absolute count P = 0.033, percentage P = 0.047). However, the activation level of basophils was significantly higher than that in controls ( P = 0.034). In addition, the activation level of basophils showed statistically significant differences in disease groups with different activities ( P = 0.011, P = 0.037, and P = 0.002). With an increasing DAS28 score, the number of peripheral blood basophils was shown to decrease while activation level increased. The absolute count and activation level of basophils in RA patients and normal controls on receiver operator characteristic (ROC) curves were (area under the curve (AUC) = 0.676, P = 0.025; AUC = 0.694, P = 0.014), respectively, which were statistically significant in differentiating RA patients from controls. The activation level of basophils was positively correlated with CCP ( P < 0.001, r = 0.831), was positively correlated with CRP ( P = 0.001, r = 0.588). These data are correlated with disease activity assessment and can be used as an early monitoring index of RA activity. Therefore, these studies provide a new basis for evaluation of clinical disease activity in RA patients.

Life ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1385
Author(s):  
Elena V. Tchetina ◽  
Azamat M. Satybaldyev ◽  
Galina A. Markova ◽  
Elena Yu. Samarkina ◽  
Aleksandr M. Lila

We investigated the importance of the baseline expression of genes involved in energy generation, as prognostic biomarkers of the treatment response to tofacitinib in patients with rheumatoid arthritis (RA). Peripheral blood samples were obtained from 28 patients with RA who received 3 months of tofacitinib therapy from 26 healthy controls. Clinical response was evaluated based on the disease activity score, the erythrocyte sedimentation rate (DAS28-ESR), and the serum levels of ACPA, RF, CRP, and ESR. Clinical remission was assessed based on DAS28 score <2.6. Protein concentrations were measured using ELISA. Total RNA isolated from whole blood was used for gene expression analysis using quantitative RT-PCR. All patients were diagnosed with Steinbrocker’s radiographic stage II-III at baseline, and most showed erosive arthritis with ACPA and RF positivity. Tofacitinib treatment significantly decreased the disease activity. Upon study completion, seven patients showed remission. Before and after TOFA therapy, a significantly higher expression of succinate dehydrogenase and pyruvate kinase genes was observed in all the examined patients compared to healthy subjects. However, the pre-therapy expression of these genes and corresponding proteins was significantly (p ≤ 0.05) lower in patients who showed remission than in other patients with RA. Moreover, we observed that, during follow-up, patients who developed remission showed an increasing trend in the expression of the examined genes, whereas the others showed some decreases in gene expression, although this was not statistically significant. We concluded that, compared with RA patients maintaining persistent moderate or high disease activity, those with clinical remission following tofacitinib treatment showed a significantly lower baseline expression of genes involved in energy generation.


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 23.2-24
Author(s):  
V. Molander ◽  
H. Bower ◽  
J. Askling

Background:Patients with rheumatoid arthritis (RA) are at increased risk for venous thromboembolism (VTE), including deep vein thrombosis (DVT) and pulmonary embolism (PE) (1). Several established risk factors of VTE, such as age, immobilization and comorbid conditions, occur more often patients with RA (2). In addition, inflammation may in itself also increase VTE risk by upregulating procoagolatory factors and causing endothelial damage (3). Recent reports indicate an increased risk of VTE in RA patients treated with JAK-inhibitors (4), pointing to the need to better understand how inflammation measured as clinical RA disease activity influences VTE risk.Objectives:To investigate the relationship between clinical RA disease activity and incidence of VTE.Methods:Patients with RA were identified from the Swedish Rheumatology Quality Register (SRQ) between July 1st2006 and December 31st2017. Clinical rheumatology data for these patients were obtained from the visits recorded in SRQ, and linked to national registers capturing data on VTE events and comorbid conditions. For each such rheumatologist visit, we defined a one-year period after the visit and determined whether a VTE event had occurred within this period or not. A visit followed by a VTE event was categorized as a case, all other visits were used as controls. Each patient could contribute to several visits. The DAS28 score registered at the visit was stratified into remission (0-2.5) vs. low (2.6-3.1), moderate (3.2-5.1) and high (>5.1) disease activity. Logistic regression with robust cluster standard errors was used to estimate the association between the DAS28 score and VTE.Results:We identified 46,311 patients with RA who contributed data from 320,094 visits. Among these, 2,257 visits (0.7% of all visits) in 1345 unique individuals were followed by a VTE within the one-year window. Of these, 1391 were DVT events and 866 were PE events. Figure 1 displays the absolute probabilities of a VTE in this one-year window, and odds ratios for VTE by each DAS28 category, using DAS28 remission as reference. The one-year risk of a VTE increased from 0.5% in patients in DAS28 remission, to 1.1% in patients with DAS28 high disease activity (DAS28 above 5.1). The age- and sex-adjusted odds ratio for a VTE event in highly active RA compared to RA in remission was 2.12 (95% CI 1.80-2.47). A different analysis, in which each patient could only contribute to one visit, yielded similar results.Figure 1.Odds ratios (OR) comparing the odds of VTE for DAS28 activity categories versus remission. Grey estimates are from unadjusted logistic regression models, black estimates are from logistic regression models adjusted for age and sex. Absolute one-year risk of VTE are estimated from unadjusted models.Conclusion:This study demonstrates a strong association between clinical RA inflammatory activity as measured through DAS28 and risk of VTE. Among patients with high disease activity one in a hundred will develop a VTE within the coming year. These findings highlight the need for proper VTE risk assessment in patients with active RA, and confirm that patients with highly active RA, such as those recruited to trials for treatment with new drugs, are already at particularly elevated risk of VTE.References:[1]Holmqvist et al. Risk of venous thromboembolism in patients with rheumatoid arthritis and association with disease duration and hospitalization. JAMA. 2012;308(13):1350-6.[2]Cushman M. Epidemiology and risk factors for venous thrombosis. Semin Hematol. 2007;44(2):62-9.[3]Xu J et al. Inflammation, innate immunity and blood coagulation. Hamostaseologie. 2010;30(1):5-6, 8-9.[4]FDA. Safety trial finds risk of blood clots in the lungs and death with higher dose of tofacitinib (Xeljanz, Xeljanz XR) in rheumatoid arthritis patients; FDA to investigate. 2019.Acknowledgments:Many thanks to all patients and rheumatologists persistently filling out the SRQ.Disclosure of Interests:Viktor Molander: None declared, Hannah Bower: None declared, Johan Askling Grant/research support from: JA acts or has acted as PI for agreements between Karolinska Institutet and the following entities, mainly in the context of the ARTIS national safety monitoring programme of immunomodulators in rheumatology: Abbvie, BMS, Eli Lilly, Merck, MSD, Pfizer, Roche, Samsung Bioepis, Sanofi, and UCB Pharma


2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 1417.3-1417
Author(s):  
D. Anghel ◽  
L. Otlocan ◽  
R. Bursuc ◽  
E. Busuioc ◽  
A. Manolache ◽  
...  

Background:Homocysteine (Hcy) has been implicated in atherogenesis. High homocysteine level can predict cardiovascular events, including death. Atherosclerosis has a high incidence in patients with Rheumatoid Arthritis (RA).Objectives:The aim of this study is to evaluate the relationship between serum homocysteine levels and carotid atherosclerosis in patients with RA and anti-TNF therapy.Methods:Our study included 80 RA patients divided into two groups: 45 patients were with anti-TNF-alpha therapy (Adalimumab, Infliximab, Etanercept) and 35 RA patients with disease-modifying antirheumatic drugs (DMARDs). The patients were diagnosed with RA used ACR/EULAR 2010 Classification Criteria. We measured carotid intima-media thickness (CIMT) using high-resolution Doppler ultrasonography at baseline and then at 12 months. CIMT above 0.9 mm is an atherosclerosis marker. We considered high levels of homocysteine in the serum above 15 µmol/L. All patients had treatment with hypolipemiant drugs and antiplatelet agents during the 12 months. Other parameters were analyzed at baseline and after 12 months: age, lipid profile (HDL, LDL, and cholesterol), ESR and disease activity score (DAS28<2.6 means remission; DAS28=2.6-3.2 means low disease activity, DAS28=3.2-5.1 means moderate disease activity; DAS28>5.1 high disease activity).Results:45 patients received anti-TNF-alpha therapy (mean age 45.50±9.69 years) and 35 RA patients had treatment with DMARDs (mean age 48.3±8.9 years). High Hcy levels were found on 34% patients in DMARDs group and 21% patients in anti-TNF group. After 12 months of treatment, patients with high levels of Hcy and anti-TNF therapy had a significant decrease in CIMT. In patients with low Hcy level the decrease in CIMT was insignificantly statistic. In DMARDs group atherosclerotic plaque was detected to 26 patients (74.29%) and 21 (46.66%) patients were detected into anti-TNF group. After 12 months CIMT was significantly higher in DMARDs group and the difference was statistically significant compared to baseline and to anti-TNF group (p=0.0002). High DAS28 score was associated with increased CIMT and hyperhomocysteinemia in both groups (p=0.0001).Conclusion:Increased Hcy levels were associated with increased CIMT values in both groups. In RA patients with anti-TNF therapy and high Hcy levels, reduction of CIMT was statistically higher than in patients with DMARDs treatment.Disclosure of Interests:None declared


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 112.1-112
Author(s):  
L. Brandt ◽  
H. Schulze-Koops ◽  
T. Hügle ◽  
M. J. Nissen ◽  
H. Paul ◽  
...  

Background:The therapeutic aim for rheumatoid arthritis (RA) is to control disease activity and prevent radiographic progression. Various clinical scores are utilized to describe disease activity in RA patients. The DAS28 score can define states of low disease activity (LDA) and remission. Despite achieving LDA or remission, radiographic progression may nevertheless occur. However, the rates and frequency of this occurrence have not been analyzed in detail.Objectives:To describe the frequency and rate of radiographic progression in patients with persistent LDA or remission.Methods:Analysis of RA patients from the SCQM cohort. Persistent LDA or remission were defined as DAS 28 ≤3.2 or <2.6 respectively, at two subsequent follow up time points in the database. We included patients with at least two sets of radiographs within these intervals of LDA and/or remission. Radiographic progression was measured with the Ratingen-score (range 0-190), which describes joint erosions numerically. Repair was defined as an improvement in the Ratingen score >5 points/year and progression as >2 or >5 points change in the Ratingen score within one year.Results:Among 10’141 RA patients, 4’342 episodes of remission occurred in 3’927 patients with 1’776 sets of X rays available within these episodes. Similarly, 8’136 episodes of LDA in 6’765 patients and 2’358 sets of X rays were present within these intervals. For patients in LDA or remission, rates of repair were 5.5% and 4.8%, respectively, while for radiographic progression >5 points in the Ratingen score/year were 10.3% in both groups and for >2 points change of Ratingen score/year were 27.7 and 25.4%, respectively).No differences for demographic factors or measures of disease activity, rheumatoid factor or ACPA were found comparing patients with radiographic progression or non-progression despite LDA or remission at the beginning of the episode of LDA and/or remission.Interestingly, 42.9% of patients in LDA with progression of >5 points in the Ratingen score/year were current smokers vs 29.4% among the non-progressors (X2 = 6.55, p = 0.01). This significant difference vanished when the cut-off for radiographic progression was set at >2 points yearly change in Ratingen score or in patients in remission.Conclusion:Radiographic progression despite LDA or remission are more frequent than expected. No differences in radiographic progression were found comparing LDA and remission suggesting that the goal of LDA is appropriate. Smoking seems to be an independent risk factor for radiographic progression despite LDA. Why the effect of smoking could was not demonstrated in patients in remission, remains unclear.Disclosure of Interests:Lena Brandt: None declared, Hendrik Schulze-Koops: None declared, Thomas Hügle Consultant of: GSK, Abbvie, Pfizer, Jansen, Novartis, Eli Lilly., Michael J. Nissen Consultant of: Abbvie, Celgene, Eli-Lilly, Janssen, Novartis and Pfizer, Hasler paul Consultant of: Abbvie, Lilly, Rudiger Muller Consultant of: AbbVie, Novartis, Grant/research support from: Gebro


2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Katharina Kurz ◽  
Manfred Herold ◽  
Elisabeth Russe ◽  
Werner Klotz ◽  
Guenter Weiss ◽  
...  

Background. Rheumatoid arthritis is a systemic autoimmune disease characterized by joint erosions, progressive focal bone loss, and chronic inflammation.Methods. 20 female patients with moderate-to-severe rheumatoid arthritis were treated with anti-TNF-antibody adalimumab in addition to concomitant antirheumatic therapies. Patients were assessed for overall disease activity using the DAS28 score, and neopterin, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) concentrations as well as osteoprotegerin (OPG) and soluble receptor activator of NF-κB ligand (sRANKL) concentrations were determined before therapy and at week 12. Neopterin as well as OPG and sRANKL were determined by commercial ELISAs.Results. Before anti-TNF therapy patients presented with high disease activity and elevated concentrations of circulating inflammatory markers. OPG concentrations correlated with neopterin (rs=0.494,p=0.027), but not with DAS28. OPG concentrations and disease activity scores declined during anti-TNF-treatment (bothp<0.02). Patients who achieved remission (n=7) or showed a good response according to EULAR criteria (n=13) presented with initially higher baseline OPG levels, which subsequently decreased significantly during treatment (p=0.018for remission,p=0.011for good response).Conclusions. Adalimumab therapy was effective in modifying disease activity and reducing proinflammatory and bone remodelling cascades.


2020 ◽  
Vol 17 (6) ◽  
pp. 445-457
Author(s):  
Sudipta Chatterjee ◽  
Dipanjan Bhattcharjee ◽  
Sanchaita Misra ◽  
Ayindrila Saha ◽  
Nitai Pada Bhattacharyya ◽  
...  

Aim: This study investigated deregulation of lncRNAs MEG3, MALAT1, NEAT1 and their associations with clinical parameters in rheumatoid arthritis (RA). Materials & methods: LncRNAs MALAT1, MEG3, NEAT1 were quantified from peripheral blood mono-nuclear cells (PBMCs) and plasma of 82 RA patients with 15 matched controls and from knee fluid of 24 RA patients with ten osteoarthritis controls. Multivariate analyses were performed among lncRNAs and clinical parameters of RA. Results: MALAT1, MEG3, NEAT1 were increased in PBMCs, plasma, synovial fluid (p < 0.05) of RA patients. Significant correlations were observed for MEG3 with TJC (r = 0.29), NEAT1 with TJC (r = 0.49), swollen joint count (r = 0.20), DAS28-CRP (r = 0.29). Multivariate analysis revealed that 48.5% of TJC and 31.5% of swollen joint count could be predicted by lncRNAs. Conclusion: The findings suggested that the lncRNAs might be explored as probable markers in monitoring disease activity.


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