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Aim. To assess efficacy and tolerance to anti-B-cell drug rituximab in therapy of rheumatoid arthritis (RA) by the data of RF register of this drug. Material and methods. Rituximab was studied in 42 patients with high RA activity. 37 patients received rituximab according to a conventional scheme: 2 intravenous 1000 mg infusions with a 2-week interval. The rest patients received 2 intravenous 500 mg infusions. The response was evaluated by DAS28 index. Results. Rituximab administration resulted in almost complete elimination of B-cells from peripheral blood. This produced a significant positive effect manifesting with reduction in the number of inflamed and painful joints. This trend was evident to observation week 8 reaching maximum to week 24. Clinical response correlated with decline of inflammation as shown by ESR and CRP. According to DAS28 index, good and satisfactory results were registered in 8 weeks in 62% patients, in 16 weeks - in 86%, in 24 weeks - in 100%. Rituximab tolerance was good. Conclusion. Effective treatment with rituximab for rheumatoid arthritis opened a new perspective in antirheumatic biological therapy and demonstrated an important role of B-cells in the disease development. This drug is recommended for wide use in the treatment of severe rheumatoid arthritis resistant to prior therapy including TNF-alpha blockers.

Objective. To evaluate the effectiveness and tolerance of Etanercept (ETN) therapy in patients with rheumatoid arthritis (RA).Material and Methods. 188 adult patients with severe and moderate RA (average DAS28 score of 6.26±0.89) subcutaneously received 50 mg/wk ETC during 24 wk along with therapy using disease-modifying antirheumatic drugs (DMARDs). The effectiveness was assessed using the EULAR and ACR20/50/70 criteria, dynamics of HAQ, SDAI, CDAI, ESR, and the C-reactive protein level.Results. By the end of the study, low activity of the disease according to EULAR (DAS28 score ≤ 3.2) was achieved in 31.9% of patients; remission (DAS28 score ≤ 2.6) was achieved in 17% of patients. ACR20/50/70 response was achieved in 72.3; 47.8 and 20.2% of patients, respectively. A decrease in the HAQ index by at least 0.25 points was achieved in 67.5% of patients. The overall EULAR response (moderate and good) was observed in 79.3% of patients; SDAI and CDAI remission/low activity was observed in 52.3 and 52.7% of patients, respectively. Some patients achieved clinical response only by the 25th week of treatment. The originally moderate RA activity and administration of methotrexate are the factors determining higher ETN effectivity in RA patients. The general tolerance of ETN was satisfactory; no uncommon adverse effects were observed.Conclusions. Analysis of the results of ETN therapy for 6 months attests to high effectiveness of this drug. Its advantages include the rapid clinical effect in most patients and good tolerance. ETN can be recommended for treatment of patients with moderate and severe RA when the conventional DMARDs therapy turns out to be insufficiently effective.

In patients with rheumatoid arthritis (RA), bone fractures occur 1.5-2 times more frequently than in the population. They often lead to reduced quality of life, to disability and death in the patients. It should be noted that risk factors (RFs) for fractures have not been studied on a sufficient sample in Russia; there are no recommendations on the prevention of fractures in this category of patients. Objective: to compare groups of RA patients with and without a history of fractures to further identify possible RFs for fractures. Subjects and methods. The trial included 254 patients aged 18 to 85 years, diagnosed with RA, from the database of the multicenter program «Osteoporosis in rheumatoid arthritis: Diagnosis, risk factors, fractures, treatment», who had been followed up in 2010 to 2011. The patients were divided into two groups: 1) 101 (39.8%) patients with a history of low-trauma fractures and 2) 153 (60.2%) patients without a history of fractures. In Group 1, the patients were older than in Group 2 (mean age 59.8 and 56.1 years, respectively). Menopause was recorded in 88.1 and 77.8% of cases, respectively. The groups differed in the duration of RA an average of 15.5 and 11.5 years, respectively Results. The fractures in the history were associated with the use of glucocorticoids (GC), their higher cumulative dose and use duration. In Group 1 patients, the bone mineral density (BMD) was lower in all study skeleton portions and more frequently corresponded to osteoporosis. RA complications, such as amyloidosis and osteonecrosis, were more common in the patients with a history of fractures. Conclusion. In RA patients, the most likely RFs of fractures are age, the long-term intake of large-dose GC, low BMD, the severe course of RA, and the presence of its complications.

Objective. To characterize specters of common and modified lipoproteins (LP) in serum of pts with rheumatoid arthritis (RA) according to age and sex and compare with healthy donors (with normal lipid level). Material and methods. 103 pts with RA (88 female and 15 male) aged 21 to 69 years were included. Specters of common and modified LP in serum and plasma were evaluated with small-angle x-ray scattering. Results. Low level of intermediate density lipoproteins (IDLP) subfractions and very low density lipoproteins (VLDLP) as well as high level of low density lipoproteins (LDLP)30 was revealed in pts with RA. Mean level of LP modification was about 60%. High density lipoproteins (HDLP) subfraction was least and IDLP subfraction – most susceptible to modification. LP modification level increased due to LDLP and VLDLP fractions. This level had a tendency to increase with age because of elevation of atherogenic LP part. Mean values of common LP did not differ between sex and age groups of pts with RA. Unexpectedly low (in comparison with normal lipid content) level of LP modification of the whole fraction of HDLP was the feature of modified LP specter in pts with RA. Conclusion. Level of common and modified LP in blood plasma and serum of RA pts is connected with general state of lipid metabolism and immune defense factors balance. Low level of VLDLP cholesterol and high level of LDLP cholesterol as well as high degree of LP of these fractions modification may be probably considered as markers of RA activity.

Objective. To study relationship of anemic syndrome with inflammation activity measures in pts with rheumatoid arthritis (RA). Material and methods. 177 pts with RA fulfilled 1987 ACR criteria were included. 132 from them had anemia at the examination. Results were processed with complex of descriptive, structural and multivariate statistics. Results. Close relationship of RA clinical features with erythropoiesis disturbances clinically manifesting with anemia development was proved. Critical hemoglobin level (