Background: There is growing evidence that mast cells (MCs) play a role in knee osteoarthritis (OA). H 1 -antihistamines block H 1 -receptors of histamine, which is an important mediator of MCs. There is a lack of data on whether H 1 -antihistamines can influence OA. We hypothesized that the use of H 1 -antihistamines may be linked to the reduced prevalence of knee OA. Methods: Baseline data from the Osteoarthritis Initiative cohort were analysed cross-sectionally. Unadjusted and adjusted logistic regression models were performed to compare the prevalence of knee OA in H 1 -antihistamine users and non-users. Generalized estimating equations were used to adjust for the correlation between knees. Knee OA was defined as (1) Kellgren-Lawrence (KL) grade ≥ 2 or total joint replacement or (2) KL grade ≥ 2 and joint space narrowing or total joint replacement. Results: The analysed sample consisted of 8545 knees (664 knees of H 1 -antihistamine users and 7881 knees of H 1 -antihistamine non-users). The use of H 1 -antihistamines was associated with reduced prevalence of knee OA in unadjusted and adjusted models using both the first (adjusted OR, 0.77; 95% CI, 0.62, 0.96; P < 0.02) and second (adjusted OR, 0.75; 95% CI, 0.62, 0.93; P < 0.008) definitions of knee OA. Conclusions: H 1 -antihistamines are associated with a reduced prevalence of knee OA. The findings indicate that this class of drugs should be further evaluated for possible structure-modifying properties in knee OA.
CITATION STYLE
Shirinsky, I., & Shirinsky, V. (2018). H 1 -antihistamines are associated with lower prevalence of radiographic knee osteoarthritis: A cross-sectional analysis of the Osteoarthritis Initiative data. Arthritis Research and Therapy, 20(1). https://doi.org/10.1186/s13075-018-1619-7
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