[Antiresorptive-cytokine effects of the chondroprotective therapy in patients with lower back pain].

Objective: To evaluate the antiresorptive-cytokine effects of chondroitin sulfate on non-specific lower back pain in patients with knee osteoarthritis (OA).

Materials And Methods: Using the envelope method, 231 patients were randomized into two groups: group 1 (=116, main) received nonsteroidal anti-inflammatory drugs (NSAIDs) and chondrogard, group 2 (=115, comparison) received only NSAIDs. The 2-month study included 3 visits (V): V - at the beginning of the study, V - after 10 days, V - after 60 days with the assessment of blood parameters: transforming growth factor β1 (TFR β1), interleukin (IL)-1β and IL-6, beta-Crosslaps, bone matrix formation indicator P1NP (n-terminal propeptide procollagen type 1), and determination of the level of deoxypyridinoline (DPID) in the urine.

Results And Conclusion: At the end of the study, there is a significant decrease in all studied cytokines in patients of group 1 compared to group 2, as well as indicators of beta-Crosslaps (<0,001) and DPID (<0,001), which may indicate the presence of its own antiresorptive-cytokine effect in chondroitin sulfate.