目的：观察自拟补肾固筋方对膝骨性关节炎（KOA）IL-1、TNF-α的表达及作用机制。方法：8月龄健康雄性新西兰大白兔76只，随机分为空白组、模型组、中药组、西药组，每组19只，除空白组外均采用改良Hulth造模法造模，连续给药8周后，取血清及膝关节前方部分滑膜组织、股骨内髁关节软骨及软骨下骨，ELISA法检测IL-1、TNF-α含量。结果：西药组关节间隙狭窄，介于模型组和中药组之间，骨赘明显；中药组关节间隙稍窄，关节面稍粗糙伴轻微骨赘。IL-1、TNF-α含量在模型组中比空白组升高（P<0.01）；两个给药组比模型组降低（P<0.01），两给药组之间比较无显著性差异。结论：补肾固筋方有效降低IL-1、TNF-α的分泌水平，延缓软骨退变，为临床应用提供科学的实验依据。

This study was aimed to observe the effect of traditional Chinese medicine (TCM) Bu-Shen Gu-Jin Prescription (BSGJP) on the expression and action mechanism of interleukin-1 (IL-1) and tumour necrosis factor-alpha (TNF-α) in knee osteoarthritis (KOA) rabbit model. A total of 76 8-month healthy male New Zealand white rabbits were randomly divided into the control group, model group, TCM BSGJP group and western medicine group, with 19 rabbits in each group. Except the control group, improved Hulth modeling method was used in the animal model establishment. After 8-week consecutive medication, the serum, part of the synovial membrane tissues on the anterior side of the knee joint, articular cartilage and subchondral bone of the medial condyle of the femur were collected. Enzyme-linked immunosorbent assay (ELISA) was used in the content determination of IL-1 and TNF-α. The results showed that the narrowing of the joint space of the western medicine group were in between the model group and the TCM BSGJP group with obvious osteophyte formation. The TCM BSGJP group had slight narrowing of the joint space, mild rough of the articular cartilage surface, and slight osteophyte formation. The contents of IL-1 and TNF-α in the model group were higher than than of the control group (P < 0.01). Both medication groups were lower than the model group (P < 0.01). There was no significant difference between the two medication groups. It was concluded that BSGJP effectively reduced the secretion of IL-1 and TNF-α, delayed the deterioration of cartilage, which provided scientific experimental evidences for the clinical applications.

河北省中医药管理局科研计划指导性课题（2014172）：补肾固筋中药对膝骨关节炎中细胞因子的调控研究，负责人：张冲。