AB0110 DETERMINING THE AMOUNT OF COPPER–CONTAINING PROTEIN, ITS BIOCHEMICAL AND IMMUNOLOGIC ACTIVITY IN RHEUMATOID ARTHRITIS PATIENTS

Background:Production of antibodies to ceruloplasmin (CP) in rheumatoid arthritis is an issue that has not been studied well enough. It was not by chance that this copper–containing alpha 2-glycorpoteid of blood plasma showing multienzymatic properties was chosen as an object of investigation. Data on the content and activity of CP in the blood of rheumatoid arthritis patients are contradictory, which has to do with different approaches to selection of patients and different measuring methods.Objectives:Improving diagnosis of rheumatoid arthritis by determination of antibodies to CP as well as its amount and enzymatic activity.Methods:We studied the serum from 30 apparently healthy individuals, and 108 rheumatoid arthritis patients. Antibodies to CP were determined by enzyme immunoassay using immobilized granulated antigen preparations (modification by Gontar et al, 2002). The amount of CP was determined by enzyme immunoassay according to the method of I.S. Kuzmina et al (1991) using commercial diagnostic agent manufactured by Mechnikov Research Institute for Vaccines and Sera.Results:Enzyme immunoassay showed a mean level of CP antibodies in donor sera of 0,020±0,006 optical density units. The level of normal values of specific antibodies determined as M±2σ included an extinction value in the range 0 – 0,086. The mean value of oxidase activity and the amount of CP in healthy people was 716±26,3 and 921±32 ng/ml, correspondingly. In the process of study we revealed a reliable increase in CP antibody count, the activity and amount of CP in patients with rheumatoid arthritis while in all cases the parameters under study correlated with the degree of disease activity (p<0,05): at activity degree I CP antibodies were 0,098±0,011; CP activity was 954±48,1; CP amount was 1292±73,4. At activity degree II CP antibodies were 0,138±0,007; CP activity was 1163±39,6; CP amount was 1763±69,3. At activity degree III, CP antibodies were 0,182±0,015; CP activity was 1368±89,5; CP amount was 1794±102,8. After a course of hospital treatment was completed, we noted a reliable decrease in the activity and amount of CP (at degree I of rheumatoid arthritis activity p<0,001, at degree II of rheumatoid arthritis activity p<0,01for both parameters; at degree III, p<0,05) compared with baseline findings. A decrease in CP antibodies shows decelerated dynamics, especially in patients with pronounced disease activity, which indicates severe disorders in the immunity that cannot be cured completely within 30 – 40 days of hospital treatment course.Conclusion:Determination of CP antibodies, as well as quantitative content of CP and its oxidase activity can serve as indicators of the activity of rheumatoid arthritis, as well as an accessory criterion of the effectiveness of administered therapy.Disclosure of Interests:None declared

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AB0101 THE IMPACT OF TIME SPAN TO ACHIEVE BOOLEAN REMISSION FOR MAINTAINING DISEASE ACTIVITY AFTER ACQUISITION IN RHEUMATOID ARTHRITIS PATIENT

Annals of the Rheumatic Diseases ◽

10.1136/annrheumdis-2021-eular.297 ◽

2021 ◽

Vol 80 (Suppl 1) ◽

pp. 1079.1-1079

Author(s):

I. Yoshii

Keyword(s):

Rheumatoid Arthritis ◽

Disease Activity ◽

Disease Duration ◽

Remission Rate ◽

Mean Value ◽

Time Span ◽

Mean Values ◽

The Mean ◽

The Relationship

Background:Boolean remission criteria is one most popular and stringent criteria in treating patient with rheumatoid arthritis (RA), because it may guarantees a stable clinical course after attaining remission.Objectives:Impact of time span from initiation to achieving Boolean remission on maintaining disease activity, daily activities, and quality of life after attaining Boolean remission was investigated from daily clinical practice data.Methods:685 patients with RA since August 2010 under the T2T strategy were treated. They were monitored for their TJC, SJC, PGA, EGA, CRP, and disease activity indices such as CDAI, SDAI, DAS28, and Boolean criteria at every visit. HAQ-DI score, pain score using visual analog scale (PS-VAS), and EQ-5D were also monitored, and the quality of life score (QOLS) calculated from EQ-5D was determined at every visit from the time of diagnosis (baseline).Of 685 patients, 465 patients had achieved Boolean remission >1 times, and were consecutively followed up for >3 years. These patients were enrolled in the study. Time span from the first visit to first Boolean remission was calculated. The relationship between the time span and each of background parameters, and the relationship between the time span and each of the mean values of the SDAI score, HAQ score, PS-VAS, SHS, and QOLS at the first Boolean remission and thereafter was evaluated statistically.Patients were subsequently divided into the G ≤ 6 and G > 6 groups based on the achievement of first Boolean remission within two groups: time span G ≤ 6 months and G > 6 months. The two groups were compared with regard to the SDAI score, HAQ score, PS-VAS, SHS, and QOLS at first visit and at the time of first Boolean remission, and the mean values of these parameters after remission were evaluated statistically. Moreover, changes of these parameters and the mean Boolean remission rate after the first remission, and SDAI remission rate at the first Boolean remission to thereafter were compared between the two groups statistically.Results:Out of 465 patients, females comprised 343 (73.7%), and the mean age was 67.8 years (range, from 21–95 years). The mean disease duration at first visit was 6.1 years (range, from 1 months–45 years). The mean follow up length was 88.1 months (range: 36–122 months; median: 85 months) and mean time span from the first visit to the first Boolean remission was 8.1 months. The mean SDAI score, HAQ score, PS-VAS, and the QOLS at first visit were 13.3, 0.467, 33.2, and 0.834, respectively. Among the study parameters, PS-VAS and QOLS were significantly correlated with the time span. For parameters at the first Boolean remission, HAQ-DI score, PS-VAS, and QOLS demonstrated significant correlation with the time span, whereas SDAI, HAQ-DI score, PS-VAS, SHS, and QOLS after the Boolean remission demonstrated significant correlation with the time span.The comparison between the G ≤ 6 and the G > 6 groups revealed that the disease duration, HAQ score, and PS-VAS at baseline in the G > 6 were significantly higher than that in the G ≤ 6 group, and QOLS in the G ≤ 6 group was significantly higher than that in the G > 6 group at baseline. Similarly, the HAQ score and PS-VAS at the first Boolean remission in the G > 6 group were significantly higher than that in the G ≤ 6 group, whereas QOLS in the G ≤ 6 group demonstrated no significant difference compared with that in the G > 6 group.The mean value of the SDAI score after the first Boolean remission in the G > 6 group was significantly higher than that in the G ≤ 6 group. Similarly, the SDAI score, HAQ score, and PS-VAS after the first Boolean remission in the G > 6 group were also significantly higher than those in the G ≤ 6 group, and the mean value of the QOLS in the G ≤ 6 group were significantly higher than that in the G > 6 group. The Boolean remission rate and SDAI remission rate after the first Boolean remission were significantly higher in the G ≤ 6 group than those in the G > 6 group.Conclusion:Attaining Boolean remission ≤ 6 months for RA has significant benefit for more stable disease control, that leads good maintenance of ADL.Disclosure of Interests:None declared

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Histamine index and clinical expression of rheumatoid arthritis activity

Vojnosanitetski pregled ◽

10.2298/vsp1004286t ◽

2010 ◽

Vol 67 (4) ◽

pp. 286-290 ◽

Cited By ~ 2

Author(s):

Aleksandra Tomic-Lucic ◽

Suzana Pantovic ◽

Gvozden Rosic ◽

Zdravko Obradovic ◽

Mirko Rosic

Keyword(s):

Rheumatoid Arthritis ◽

Synovial Fluid ◽

Disease Activity ◽

Disease Activity Score ◽

Joint Destruction ◽

Clinical Expression ◽

Histamine Concentration ◽

Significant Difference ◽

Rheumatoid Arthritis Activity

Background/Aim. Many arguments prove the pathophysiologic role of histamine in the process of remodeling and joint destruction in rheumatoid arthritis. The aim of our study was to find out if there was a relation between histamine concentration in synovial fluid and blood with clinical expression of disease activity. Methods. Histamine concentration in synovial fluid and blood was determinated in 19 patients with rheumatoid arthritis. Histamine concentration measurement was based on the Shore's fluorometric method. Histamine index (HI) was evaluated as a ratio between histamine concentration in synovial fluid and blood. Disease activity score, DAS 28 (3), with three variables (erythrocyte sedimentation rate, the number of swelled joints and the number of tender joints) was also evaluated. Results. Our results showed that there was no significant difference in concentration of histamine in synovial fluid and blood related to disease activity. However, there was a significant difference in the histamine index which was increased proportionally with disease activity. Conclusion. Our study indicates that histamine index could be useful in estimation of rheumatoid arthritis activity.

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ATHEROSCLEROTIC LESION OF CAROTID ARTERIES IN RHEUMATOID ARTHRITIS AND ITS ASSOCIATION WITH CARDIOVASCULAR RISK FACTORS

Siberian Medical Journal ◽

10.29001/2073-8552-2019-34-1-107-117 ◽

2019 ◽

Vol 34 (1) ◽

pp. 107-117

Author(s):

V. O. Omelchenko ◽

E. A. Letyagina ◽

M. A. Korolev ◽

T. I. Pospelova

Keyword(s):

Rheumatoid Arthritis ◽

Risk Factors ◽

Cardiovascular Risk ◽

Disease Activity ◽

Cardiovascular Risk Factors ◽

Intima Media Thickness ◽

Atherosclerotic Plaques ◽

Cerebrovascular Event ◽

Media Thickness ◽

Rheumatoid Arthritis Activity

Introduction. Cardiovascular complications are more often observed in patients with rheumatoid arthritis. Available cardiovascular risk scales were developed for general population and provide in sufficiently adequate assessment of the cardiovascular event likelihood. Studying the risk factors in rheumatoid arthritis patients is necessary for timely diagnosis and prevention.Objective: To analyze the incidence of atherosclerotic lesions in the brachiocephalic arteries in patients with rheumatoid arthritis and associations of this pathology with cardiovascular risk factors.Material and Methods. Two hundred and twelve Caucasian patients with rheumatoid arthritis (age of 58.0 years [48.3; 65.0]; Disease Activity Score-28 of 4.96 [3.86; 5.85]) were included in our study. Patients had American College of Rheumatology-defined rheumatoid arthritis (1987 classification criteria). The ratio of women to men was 5.8 to 1. General clinical examination of patients, the identification of traditional cardiovascular risk factors, and the determination of disease activity were performed. The atherosclerotic progression was assessed by ultrasonography with carotid intima-media thickness measurement and atherosclerotic plaque detection. All patients gave written informed consent before enrollment into the study.Results. Atherosclerotic plaques were found in 59 patients (27.8%), predominantly in older individuals (66.0 [59.0; 73.0] versus 55.0 years [42.0; 61.0], p<0.001) and in men (51.6 versus 23.8% in women, p=0.001). Atherosclerotic plaques were detected in 46.3% of smokers versus 23.4% of non-smokers (p=0.003). Atherosclerotic plaques were more frequently detected in patients with type 2 diabetes mellitus (58.3 versus 26.0%, p=0.036), arterial hypertension (41.7 versus 5.0%, p<0.001), angina pectoris (73.1 versus 21.5%, p<0.001), past history of acute cerebrovascular event (83.3 versus 25.9%, p=0.008), and the presence of post-infarction cardiosclerosis (100.0 versus 26.6%, p=0.03). No atherosclerotic plaques were found in 48 non-climacteric women. Except for the level of rheumatoid factor, all parameters of rheumatoid arthritis activity did not demonstrate statistically significant differences between groups with and without atherosclerotic plaques. The intima-media thickness mainly correlated with age (rs=0.633, p<0.001) and was not associated with rheumatoid arthritis activity. After the use of age- and sex-specific ultrasound criteria, the proportion of patients with intima-media thickening increased from 34.9 to 58.0% (p<0.001). Prevalence rates of most cardiovascular risk factors were associated with age and gender.Conclusion. The present study identified the differences between the incidence rates of traditional risk factors in patients with rheumatoid arthritis compared with the corresponding values in world studies and generated comparable results with REMARKA study confirming a significance of studying this question in the context of the Russian population. The results, obtained in this study, improve understanding of the structure of risk factors in patients with rheumatoid arthritis and may provide the basis for the algorithm of curation of patient with high cardiovascular risk.

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Evaluation of Selected Rheumatoid Arthritis Activity Scores for Office-based Assessment

The Journal of Rheumatology ◽

10.3899/jrheum.091349 ◽

2010 ◽

Vol 37 (12) ◽

pp. 2466-2468 ◽

Cited By ~ 7

Author(s):

MARY BETH SULLIVAN ◽

CHRISTINE IANNACCONE ◽

JING CUI ◽

BING LU ◽

KERRI BATRA ◽

...

Keyword(s):

Rheumatoid Arthritis ◽

Disease Activity ◽

Disease Duration ◽

Office Setting ◽

Reactive Protein ◽

Patient Reported ◽

Pairwise Correlations ◽

Patient Reported Measures ◽

Rheumatoid Arthritis Activity ◽

Citrullinated Peptide

Objective.Patient-reported measures can quickly provide assessments of rheumatoid arthritis (RA) disease activity in the office setting and do not require a laboratory test or physician examination. The goal of our study was to establish the validity of patient-reported indices compared to the C-reactive protein-based Disease Activity Score (DAS28-CRP4).Methods.Baseline and 1-year followup DAS28-CRP4 data were obtained from 740 RA subjects and were compared to indices (MDHAQ, CDAI, RAPID, RADAI, GAS) according to cyclic citrullinated peptide (CCP) status and change at 1 year. Pairwise correlations were calculated for each index.Results.Among 740 subjects, mean age 57 years, disease duration 14 years, the CDAI (r = 0.84, Δ r = 0.80) and RAPID (r = 0.71, Δ r = 0.70) had the highest correlation with the DAS28-CRP4 scores at baseline and 1 year. These correlations were not influenced by CCP status, disease-modifying antirheumatic drug use, biologic use, or by disease duration.Conclusion.In RA, the CDAI and RAPID correlated well with the DAS28-CRP4. They may both be practical and informative in the care of patients in the office setting.

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METHODS FOR ASSESSMENT OF THE SPECIFIC ACTIVITY OF DRUGS FOR PREVENTION OF HEPATITIS B

Voprosy Virusologii ◽

10.18821/0507-4088-2017-62-5-233-240 ◽

2017 ◽

Vol 62 (5) ◽

pp. 233-240

Author(s):

E. L. Postnova ◽

N. V. Shalunova ◽

K. A. Sarkisyan ◽

A. A. Movsesyants

Keyword(s):

Hepatitis B ◽

Enzyme Immunoassay ◽

Specific Activity ◽

Elisa Method ◽

Normative Documents ◽

Immunologic Activity

The immunologic activity (specific activity) is one of the main indicators of quality of vaccines for prophylaxis of hepatitis B, along with their safety. Retrospective analysis of the use of laboratory methods for assessment of specific (immunogenic) activity of modern vaccines against hepatitis B using indicators was carried out: in vitro method based on evaluation of HBsAg content and in vivo method based on evaluation of immunogenic activity in mice. Both methods are standardized and described in normative documents on the vaccines against hepatitis B of domestic production registered in the Russian Federation. Indicators of specific (immunogenic) activity of vaccines against hepatitis B were used to investigate more than 170 vaccine series using the ELISA method in the period from 2013 to 2015. The obtained control results confirmed the expediency and efficiency of enzyme immunoassay for determination of HBsAg content, as well as permissibility of use of ready sets of the Murex HBsAg Version 3 test systems for testing vaccines against hepatitis B by the ELISA method. Analysis of the results of laboratory control of series of vaccines against hepatitis B using a biological method for immunogenicity evaluation based on ED50 analysis confirms persistently high immunogenic activity of the Russian commercial vaccines intended for prophylaxis of hepatitis B. The confirmed comparability of methods allows the number of in vivo tests to be further reduced in favor of the enzyme immunoassay authentically characterizing the produced drug.

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ATHEROSCLEROTIC LESION OF CAROTID ARTERIES IN RHEUMATOID ARTHRITIS AND ITS ASSOCIATION WITH CARDIOVASCULAR RISK FACTORS

Siberian Medical Journal ◽

10.29001/2073-8552-2018-34-1-107-117 ◽

2019 ◽

Vol 34 (1) ◽

pp. 107-117

Author(s):

V. O. Omelchenko ◽

E. A. Letyagina ◽

M. A. Korolev ◽

T. I. Pospelova

Keyword(s):

Rheumatoid Arthritis ◽

Risk Factors ◽

Cardiovascular Risk ◽

Disease Activity ◽

Cardiovascular Risk Factors ◽

Intima Media Thickness ◽

Atherosclerotic Plaques ◽

Cerebrovascular Event ◽

Media Thickness ◽

Rheumatoid Arthritis Activity

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Evaluation of the degree of clinical rheumatoid arthritis activity based on the concentrations of cytokines TNF-alpha, IL-12, IL-15, and IL-18 in serum and synovial fluid

Vojnosanitetski pregled ◽

10.2298/vsp0601021p ◽

2006 ◽

Vol 63 (1) ◽

pp. 21-26 ◽

Cited By ~ 4

Author(s):

Ljiljana Petrovic-Rackov

Keyword(s):

Rheumatoid Arthritis ◽

Synovial Fluid ◽

Disease Activity ◽

Tnf Alpha ◽

Control Group ◽

High Degree ◽

Rheumatoid Arthritis Activity ◽

Active Disease

Bacground/Aim. Experimental in vitro and in vivo investigations in a mouse model have proved that TNF-alpha, IL-12, IL- 15 and IL-18 participate in the pathogenesis of erosive inflammatory arthritis. The aim of this research was to determine the clinical significance of cytokines in the evaluation of the activity of rheumatoid arthritis (RA). Methods. Inside a 4-year period we followed-up 64 patients with RA as newly occurred or in the phase of worsening. We observed the clinical manifestation of the disease upon wluch we divided the patients in to 3 groups: the patients with low active RA, patients with moderate active RA, and the patients with wild active RA. The control group (n = 25 patients) included the patients with osteoarthrosis (OA), and arthritis of the knee. In the samples of serum of all of the patients the concentrating of cytokines TNF-alpha, IL-12, IL-15, and IL-18 were determined using the immunoenzymatic methods in mice for human interleukines. By comparing the concentrations in 30 patients with the high, 14 patients with moderate, and 20 patients with the mild activity of RA it was determined that the patients with the high degree of the disease activity, had significantly high (p < 0.01; p < 0.05) concentrations of the examined cytokines in blood and synovial fluid as compared to the patients with the moderate and mild active disease. There was a relationship (p < 0.01) between the concentrations of cytokines in blood and synovial fluid with the quantity of the Disease Activity Score in 28 joints. Conclusions. Cytokines concentrations could be good indicators of the degree of the general activity of RA. This research could contribute to the interpretation of insufficiently well known views of the pathogenesis role and significance of citokines in an active disease.

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