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  1. Loh KW, Shaz N, Singh S, Malliga Raman M, Balaji Raghavendran HR, Kamarul T
    PMID: 34182614 DOI: 10.1515/jbcpp-2020-0320
    OBJECTIVES: Primary Osteoarthritis (OA) is a disease of progressive joints degeneration due to idiopathic causes. Recent evidence showed a positive relationship between OA and metabolic syndrome. This pilot study aimed to assess the baseline level of pro and anti-inflammatory cytokines in OA patients with or without Diabetic Mellitus (DM) and assess the effect of hydrogen peroxide (H2O2) in cytokine production.

    METHODS: Patients with primary hip and knee OA were recruited, and 3 mL of bone marrow was harvested during joint replacement surgery. Bone marrow stromal cells (BMSC) was isolated and cultured in a culture flask for three passages. Later experiment was then sub-cultured in a well plate labeled as the control group and H2O2 (0.1 mM) treated group. ProcartaPlex® Multiplex Immunoassay was performed to measure cytokine levels produced by the BMSC at 0 h, as well as 72 h.

    RESULTS: Cytokines such as tumor necrosis factor-alpha, interleukin (IL)-6, IL-8, and IL-1β generally exhibited higher cytokine levels in subjects with DM than in nonDM subjects at 0 and 72 h. For IL-17, its expression was similar in nonDM and DM groups at 0 and 72 h. Cytokine IL-10 showed no significant difference in both the groups while DM and nonDM groups treated with H2O2 showed decreased IL-4 levels compared to control groups at 72 h. Bone marrow cells from DM-OA are more vulnerable to chemical insult and are associated with higher levels of proinflammatory cytokines production and lower IL-4 level production.

    CONCLUSIONS: This study provides a clue that management of OA with co-morbidity like DM needs future studies.

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