膝关节骨关节炎软骨中YKL-40、IL-1β的表达及相关性探讨

摘要

目的 研究膝关节骨关节炎(KOA)病患软骨中甲壳质酶(YKL 40)、白细胞介素-1β(IL-1β)的表达水平,并分析两者相关性.方法 选择该院骨科住院就诊的符合KOA诊断的病患38例,记为观察组.再选择同期因膝关节外伤行膝关节镜检治疗或膝关节骨折内固定手术患者关节软骨30例,记为对照组.根据KOA放射线及关节镜下分级标准,将观察组分为轻度组16例、中度组11例及重度组10例.对比所有病患的YKL 40、IL-1β、IL-6、肿瘤坏死因子-α(TNF-α)表达水平,同时进行Mankin评分、细胞死亡率的对比.结果 观察组YKL-40、IL-1β、IL-6、TNF-α表达水平及Mankin评分、细胞死亡率均显著高于对照组,并且观察组中轻度、中度、重度的YKL-40等指标水平呈上升水平(均P＜0.05).并且YKL-40表达水平与IL-1β水平存在显著的正相关(r=0.738,P=0.000).此外,YKL-40表达水平还与IL-6(r=0.819,P=0.000)、TNF-α(r=0.871,P=0.000)表达水平及Mankin评分(r=0.832,P=0.000)、细胞死亡率存(r=0.832,P=0.000)在显著的正相关.结论 KOA病患中YKL-40、IL-1β呈高表达状态,并且两者呈现显著的正相关.%Objective To study the expressions of YKL-40 and IL-1β in the cartilage of knee osteoarthritis(KOA),and analysis the possible relationship between YKL-40,IL-1β in KOA.Methods Thirty-eight patients diagnosed with KOA were selected in this hospital as observation group.Then select 30 articular cartilage cases in the same period due to knee injury knee joint examina tion or treatment of knee joint fracture surgery patients,referred to as the control group.According to KOA radiation and arthroscopic grading standards,the observation group was divided into 16 cases of mild group,10 cases of moderate group,11 cases of severe groups.Compare the expression levels of all patients including YKL-40,interleukin-1β (IL-1β),IL 6,tumor necrosis factor-α (TNF-α),while recording Mankin score and cell mortality.Results Expression of YKL 40,IL-1β,IL-6,TNFα,Mankin scores and rate of cell death about observation group were significantly higher than control group,the indicators above in mild,moderate,severe group showed a trend of rising(all P＜0.05).And the expression levels of YKL-40 and IL-1β were significantly positive correlation (r=0.738,P=0.000).In addition, The expression levels of YKL-40 had relation with IL 6 (r=0.819,P=0.000),TNF-α (r=0.871,P=0.000) and Mankin score (r=0.832,P 0.000),cells mortality deposit (r=0.832,P=0.000).Conclusion Expression levels of YKL-40 and IL-1β were significantly increased in cartilage of knee osteoarthritis patients,and there showed a significant positive correlation between YKL-40 and IL-1β.