盐酸氨基葡萄糖对兔膝骨性关节炎的影响  

EFFECT OF GLUCOSAMINE HYDROCHLORIDE CAPSULES ON ARTICULAR CARTILAGE OF RABBIT KNEE JOINT IN OSTEOARTHRITIS

作　　者：陈德生[1,2] 张志刚[1,2] 曹靖[1,2] 张德新[1,2] 贾宝明[1,2] 

机构地区：[1]华北煤炭医学院附属骨科医院 [2]唐山市第二医院关节病科,河北唐山063000

出　　处：《中国修复重建外科杂志》2010年第3期287-291,共5页Chinese Journal of Reparative and Reconstructive Surgery

摘　　要：目的骨性关节炎主要病理变化为关节软骨的破溃丢失,盐酸氨基葡萄糖(glucosamine hydrochloride capsules,OTL)可促进关节软骨的修复。探讨OTL对兔骨性关节炎关节软骨的作用机制,为临床应用提供实验依据。方法健康成年新西兰大白兔36只,雌雄各半,体重2.2～2.6kg。随机分为3组(n=12):假关节组(A组)、前交叉韧带切断术(anterior cruciate ligament transection,ACLT)/生理盐水组(B组)、ACLT/OTL组(C组)。B、C组行右膝ACLT制备骨性关节炎模型;A组只打开右侧膝关节腔,不切断前交叉韧带。C组于造模术后第2天开始每天灌胃OTL(150mg/kg),连续12周;B组于同一时间点给予等量生理盐水灌胃;A组自由饮食。术后观察动物一般情况;12周后处死动物,大体观察膝关节软骨面、关节囊和滑膜,取股骨髁脱钙后,行HE染色以及TGF-β1和IL-1β免疫组织化学观察,并行Mankin法评分。结果各组动物均存活至实验完成,切口愈合良好。大体观察,A组关节滑液增多,关节面光滑完整;B组关节面可见大小不等溃疡;C组膝关节面较光滑完整;3组软骨评分比较差异均有统计学意义(P<0.05)。组织学观察,A组关节软骨结构正常,细胞排列整齐;B组关节软骨层变薄,软骨有碎裂现象,细胞排列紊乱;C组软骨细胞分层清晰有序,细胞形态较规则;A、B、C组Mankin评分分别为(1.04±0.13)、(7.97±0.12)、(2.81±0.36)分,3组评分比较差异有统计学意义(P<0.05)。免疫组织化学染色观察:A、B、C组TGF-β1评分分别为(50.62±1.51)、(24.81±1.28)、(41.57±1.69)分;IL-1β分别为(13.12±1.21)、(62.53±2.37)、(30.67±1.28)分;3组评分比较差异均有统计学意义(P<0.05)。结论OTL150mg/(kg·d)灌胃能部分阻止兔骨性关节炎关节软骨退变,其作用机制可能是下调IL-1β的表达,上调TGF-β1的表达,从而延缓骨性关节炎的进展。Abstract： Objective To access the protective effects of glucosamine hydrochloride capsules （OTL） on articular cartilage in osteoarthritis of rabbit. Methods Thirty-six New Zealand white rabbits were divided randomly into three groups （n=12）： sham group （group A）, anterior cruciate l igament transection （ACLT）/normal sal ine group （group B）, and ACLT/ OTL group （group C）. Rabbits in groups B, C received ACLT on the right knee. Rabbits in group A were not given ACLT as control. Group C received a daily administration of OTL at a dose of 150 mg/kg of body weight for 12 weeks; in contrast, group B received normal sal ine at the same dose. All rabbits were sacrificed after 12 weeks. The right femoral condyle were removed and observed at pathologic changes with HE staining and graded by Mankin＇s scale, the expression level of transforming growth factor β1 （TGF-β1） and interleukin 1β （IL-1β） were detected by immunohistochemical staining. Results All rabbits survived at the end of experiment and incision healed well. The gross observation showed that joint synovia increased and articular surface was smooth and integrity in group A; that ulcer was observed on the articular surface of group B; and that articular surface was smooth and integrity in group C. There were sigificant differences in articular cartilage scores between 3 groups （P 〈 0.05）. The histological observation showed that the articular cartilage had normal structure and the cells arranged regularly in group A; that the articular cartilage became thin and the cells arranged irregularly in group B; and that the cells arranged with a clear layer and had regular shape in group C. The Mankin scores were 1.04 ± 0.13, 7.97 ± 0.12, and 2.81 ± 0.36 in groups A, B, and C, respectively; showing significant difference between 3 groups （P 〈 0.05）. The result of immunohistochemistry showed that the expressions of TGF-β1 were 50.62 ± 1.51, 24.81 ± 1.28, and 41.57 ± 1.69 and the expressions of IL-1β were 13.12

关 键 词：骨性关节炎 盐酸氨基葡萄糖TGF-β1 IL-1Β 兔 

分 类 号：R684.3[医药卫生—骨科学] R687.4[医药卫生—外科学]