Objective: To assess the curative effect of the stage II femoral head necrosis treated by arthroscopy assisted lesion clearance, bone graft and titanium rod support. Methods: All the patients (including 58 patients 74...Objective: To assess the curative effect of the stage II femoral head necrosis treated by arthroscopy assisted lesion clearance, bone graft and titanium rod support. Methods: All the patients (including 58 patients 74 hips) were diagnosed as stage II femoral head necrosis according to the ARCO staging system during 2003-2013. In these patients, 15 hips were stage IIA, 34 hips were stage IIB and 25 hips were stage IIC. Located by C-arm and assisted by arthroscopy, minimally-invasive percutaneous pulp core decompression and lesion clearance within the femoral head were accurately performed, and then, the OAM composite of autologous bone marrow was implanted and the femoral head was supported using the titanium rod. Follow-up including the pain score, the Harris hip score and X-ray observation for disease progression were achieved at 6, 12, 24 and 36 months postoperatively, Kaplan-Meier survival curve was used for the survival analysis. Result: The VAS score and the Harris score after operation were better THRAn THRAt of before the surgery, the difference had statistical significance (p Conclusion: Arthroscopy assisted lesion clearance, bone graft and titanium rod support to treat the stage II osteonecrosis of the femoral head are effective and can prevent the femoral head from collapsing. But for stage IIC patients who had a history of the use of hormone, this surgery should be chosen carefully because the outcome is always very poor.展开更多
To study the effect of titanium alloy cage on the treatment of the ischemic necrosis of femoral head in dog, the model of the ischemic necrosis of femoral head was made with the liquid nitrogen in 15 hybrid adult dogs...To study the effect of titanium alloy cage on the treatment of the ischemic necrosis of femoral head in dog, the model of the ischemic necrosis of femoral head was made with the liquid nitrogen in 15 hybrid adult dogs. The titanium alloy cage made of a hollow cylinder was driven into the subchondral bone of necrotic femoral head via central channel. The dogs were divided into 3 groups, each group was sacrificed 3, 6, 12 weeks after the operation respectively. No collapse of femoral head was observed after the operation. The position of the cages was good on radiograph. Microscopically, the cancellous bone of necrotic femoral head rebuilt gradually and grew into cage. After 12 weeks of creeping substitution, the cancellous bone filled up the hollow cavity and holes of the cages. It is concluded that the titanium alloy cage can provide structural support for the subchondral bone and prevent collapse and can be used for the treatment of the ischemic necrosis of femoral head.展开更多
Objective: To explore the effect of tumor necrosis factor-α(TNF-α)on the occurrence of steroid-induced avascular necrosis of femoral head(SANFH). Methods: Twenty-four rabbits were firstly divided into void group (n=...Objective: To explore the effect of tumor necrosis factor-α(TNF-α)on the occurrence of steroid-induced avascular necrosis of femoral head(SANFH). Methods: Twenty-four rabbits were firstly divided into void group (n=12) and model group (n=12) at random. Prednisone Acetate was injected to the model group(0.32 mg·kg^(-1)·d^(-1)). In the 6 th and 8 th week, two rabbits of the two groups were killed respectively to observe whether the model was successful. The level of TNF-α in serum of the residual rabbits of the two groups was examined in Radioimmunoassay method. Results: The level of TNF-α in model group is significantly higher than that in void group(P<0.001) under the premise of the model of SANFH success by histological observation. Conclusion: The rise of level of TNF-α may be one of the most important factors in the occurrence of SANFH.展开更多
To investigate the significance of bone mineral changes in the pathogenic process of steroid-induced osteonecrosis in rabbits. Methods： Seventy adult female Japanese White rabbits were randomly divided into five grou...To investigate the significance of bone mineral changes in the pathogenic process of steroid-induced osteonecrosis in rabbits. Methods： Seventy adult female Japanese White rabbits were randomly divided into five groups Animals in steroid group received an intramuscular injection of methylprednisolone acetate （4 mg/kg） once a week, and killed in four different time after first treatment. Animals in control group received an intramuscular injection with the same volume of normal saline, while 150 kU penicillin was injected twice a week for preventing infection in all groups. The contents of serum calcium （Ca） and phosphorus （P） were determined and the bone mineral densities of the femoral head and neck were measured at the 2nd, 4th, 8th and 10th weeks after first treatment. Meanwhile the general condition such as weight, spirit and hair of rabbits was observed. Results： Compared with the control group, the weight of rabbits in steroid group lost since the first week, and progressively aggravated; the bone mineral density of the femoral head and neck was lowered since the 2nd and 4th week respectively （P〈0.05, P〈0.01）, and lowered more quickly in femoral neck than in femoral head. In steroid group, the bone mineral density of the femoral neck at the 10th week was significantly lower than that at the 8th week （P〈0.05） Compared with the control group, the serum levels of Ca and P in steroid group were lowered since the 2nd week （P〈0.05, P〈0.01）. In steroid group, the serum Ca level at the 10th week was lower than that at the 8th week, and the serum P level waslowered more quickly than Ca level was. Conclusion： Osteonecrosis appears in rabbits shortly after corticoids are first administered, and osteonecrosis in rabbits is chronologically associated with the onset of hypocalcaemia, hypophosphatemia and lowered bone mineral density. Steroid-induced osteonecrosis may be relevant to bone mineral loss and density lowering of the femoral head and neck.展开更多
目的:探讨补肾壮骨方治疗非创伤性股骨头坏死(non-traumatic osteonecrosis of the femoral head,NONFH)肝肾亏虚证的功效内涵。方法:①网络药理学研究。检索TCMIP v2.0、ETCM2.0、HERB数据库,收集补肾壮骨方的靶标基因,从项目组前期研...目的:探讨补肾壮骨方治疗非创伤性股骨头坏死(non-traumatic osteonecrosis of the femoral head,NONFH)肝肾亏虚证的功效内涵。方法:①网络药理学研究。检索TCMIP v2.0、ETCM2.0、HERB数据库,收集补肾壮骨方的靶标基因,从项目组前期研究中获取NONFH肝肾亏虚证相关差异表达基因,以NONFH肝肾亏虚证典型症状为关键词检索NONFH肝肾亏虚证典型症状相关基因。将上述基因合并,构建补肾壮骨方治疗NONFH肝肾亏虚证蛋白质互作网络,从中筛选关键靶标基因,并对其进行KEGG信号通路富集分析,结合文献对相关信号通路进行药理作用分析。以靶标基因与信号通路、信号通路与药理作用的映射关系为基础,结合文献报道,构建补肾壮骨方治疗NONFH肝肾亏虚证“组方中药-关键靶标-信号通路-功效-药理作用-临床症状”关联网络。②临床研究。选择77例(120髋)NONFH肝肾亏虚证患者,采用口服补肾壮骨方治疗6个月。分别采用股骨头坏死临床疗效评价标准和北京中医药大学X线评价系统进行临床疗效和影像学疗效评价。结果:①网络药理学研究结果。从构建的补肾壮骨方治疗NONFH肝肾亏虚证蛋白质互作网络中共筛选出556个关键靶标基因,这些基因共参与39条与NONFH肝肾亏虚证有关的信号通路,主要涉及纠正骨代谢紊乱、纠正脂代谢紊乱、矫正免疫-炎症失衡、改善血液循环受阻4种药理作用。纠正骨代谢紊乱涉及靶标基因183个,纠正脂代谢紊乱涉及靶标基因176个,矫正免疫-炎症失衡涉及靶标基因171个,改善血液循环受阻涉及靶标基因125个。构建的“组方中药-关键靶标-信号通路-功效-药理作用-临床症状”关联网络直观显示了补肾壮骨方治疗NONFH肝肾亏虚证的功效内涵。②临床研究结果。临床疗效评价结果显示,治疗6个月后患者的髋关节疼痛强度评分、髋关节屈曲功能评分、行走距离评分及临床疗效总分均较治疗前降低[(5.86±1.96)分,(2.26±1.84)分,t=25.672,P=0.000;(5.76±1.62)分,(3.46±1.68)分,t=38.411,P=0.000;(6.31±1.41)分,(0.78±0.74)分,t=46.771,P=0.000;(5.92±1.18)分,(2.32±1.06)分,t=48.263,P=0.000];临床疗效优88髋、良28髋、可2髋、差2髋。影像学疗效评价结果显示,治疗后3年影像学疗效优17髋、良25髋、可67髋、差11髋;股骨头形态稳定109髋、进展11髋,坏死灶改善67髋、稳定34髋、进展19髋,骨关节炎稳定100髋、进展20髋。结论:补肾壮骨方治疗NONFH肝肾亏虚证的机制为纠正骨代谢和脂代谢紊乱、免疫-炎症失衡及血液循环受阻,其中纠正骨代谢紊乱可能是最主要的机制。展开更多
目的:分析激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)囊性变组织的骨修复机制,并观察活血通络胶囊含药血清对肥大软骨细胞成骨分化的影响。方法:(1)SONFH囊性变组织的骨修复机制分析。纳入6例采用全...目的:分析激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)囊性变组织的骨修复机制,并观察活血通络胶囊含药血清对肥大软骨细胞成骨分化的影响。方法:(1)SONFH囊性变组织的骨修复机制分析。纳入6例采用全髋关节置换术治疗的SONFH患者,术后收集坏死股骨头6个,其中3个股骨头用于囊性变组织的单细胞转录组测序,采用生物信息学方法分析囊性变组织中的细胞分类、软骨细胞的细胞亚群、肥大软骨细胞参与的生物过程;另外3个股骨头用于囊性变组织的病理学检查,分别采用苏木素-伊红染色、阿利新蓝染色、番红O-固绿染色观察囊性变组织中软骨细胞、肥大软骨细胞的分布与特征,采用免疫组织化学染色观察囊性变组织中肥大软骨细胞标志蛋白Ⅹ型胶原α1(collagen typeⅩα1,Col10α1)、基质金属蛋白酶(matrix metalloproteinase,MMP)13和成骨分化相关蛋白Runt相关转录因子2(Runt-related transcription factor 2,RUNX2)、骨桥蛋白(osteopontin,OPN)的表达情况。(2)活血通络胶囊含药血清对肥大软骨细胞成骨分化影响的分析。采用活血通络胶囊(活血通络胶囊粉末溶于蒸馏水)给大鼠灌胃,制备活血通络胶囊含药血清。取小鼠膝关节软骨,消化分离后进行培养。将小鼠软骨细胞接种于含有不同浓度的活血通络胶囊含药血清的完全培养基中,筛选活血通络胶囊含药血清的最佳干预浓度。取处于对数生长期的第1代小鼠软骨细胞,行肥大软骨细胞诱导成功后,分为成骨诱导组、5%含药血清干预组和对照组,成骨诱导组更换成骨诱导培养基培养,5%含药血清干预组更换含5%活血通络胶囊含药血清的成骨诱导培养基培养,对照组继续采用肥大诱导培养基培养;培养7 d后,分别采用碱性磷酸酶(alkaline phosphatase,ALP)染色和茜素红染色,观察细胞形态特征,分别采用实时定量PCR和蛋白质印迹法检测Ⅰ型胶原蛋白α1(collagenⅠα1,Col1α1)、ALP、RUNX2、OPN的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量。结果:(1)SONFH囊性变组织单细胞转录组测序分析结果。共获得30224个细胞的单细胞转录组测序结果;细胞分类结果显示,囊性变组织中有8种细胞,包括T细胞、内皮细胞、成纤维细胞、软骨细胞、巨噬细胞、单核细胞、破骨细胞和肥大细胞;软骨细胞亚群分析共鉴定出5类亚群细胞,包括稳态软骨细胞、成纤维软骨细胞、炎症软骨细胞、肥大软骨细胞、前体肥大软骨细胞;差异基因富集分析结果显示,肥大软骨细胞主要参与细胞迁移正向调节、细胞分化、细胞外基质形成、骨化、细胞迁移和成骨细胞分化等生物过程。(2)SONFH囊性变组织的病理学检查结果。囊性变组织的边缘可见软骨细胞、肥大软骨细胞,且部分软骨组织呈现向骨小梁过渡的形态;Col10α1、MMP13、RUNX2、OPN在囊性变组织的边缘高表达。(3)活血通络胶囊含药血清干预肥大软骨细胞成骨分化的分析结果。经筛选,5%为活血通络胶囊含药血清的最佳干预浓度。ALP染色和茜素红染色结果显示,对照组无明显钙化结节,成骨诱导组有明显钙化结节,5%含药血清干预组钙化结节较成骨诱导组进一步增多;成骨诱导组细胞ALP、RUNX2、OPN、Col1α1的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量均高于对照组(P=0.000,P=0.000,P=0.001,P=0.000;P=0.000,P=0.000,P=0.001),5%含药血清干预组细胞ALP、RUNX2、OPN、Col1α1的mRNA相对表达量和ALP、RUNX2、OPN的蛋白相对表达量均高于成骨诱导组(P=0.000,P=0.000,P=0.002,P=0.001;P=0.000,P=0.000,P=0.001)。结论:SONFH囊性变组织中存在肥大软骨细胞向成骨细胞分化的修复机制,而活血通络胶囊含药血清能够促进体外培养的肥大软骨细胞向成骨细胞分化。展开更多
目的:探讨激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)滑膜病变的分子机制。方法:(1)转录组测序及生物信息学分析。收集9例接受全髋关节置换术的患者(SONFH患者3例、髋骨关节炎患者3例和股骨颈骨折患者...目的:探讨激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)滑膜病变的分子机制。方法:(1)转录组测序及生物信息学分析。收集9例接受全髋关节置换术的患者(SONFH患者3例、髋骨关节炎患者3例和股骨颈骨折患者3例)术中切除的髋关节滑膜组织,进行转录组测序和生物信息学分析,筛选SONFH滑膜病变核心基因。(2)滑膜组织检测。根据标本来源将髋关节滑膜组织分为SONFH组、髋骨关节炎组和股骨颈骨折组。观察各组髋关节滑膜组织的组织形态,采用实时定量PCR检测3组髋关节滑膜组织中SONFH滑膜病变核心基因的mRNA相对表达量,采用蛋白质印迹法和免疫组织化学染色法检测3组髋关节滑膜组织中SONFH滑膜病变核心基因的蛋白相对表达量。采用免疫荧光染色法检测SONFH滑膜病变的靶细胞。(3)细胞验证。培养大鼠滑膜成纤维细胞,构建滑膜炎细胞模型。采用实时定量PCR及蛋白质印迹法检测空白细胞(空白细胞组)和滑膜炎模型细胞(模型细胞组)中SONFH滑膜病变核心基因的表达。结果:(1)转录组测序和生物信息学分析结果。经对不同患者来源的髋关节滑膜组织进行差异基因分析,共筛选出1001个与SONFH髋关节滑膜病变相关的基因,这些基因与免疫反应和外泌体有关,其中干扰素调节因子(interferon regulatory factor,IRF)4和IRF7是SONFH髋关节滑膜病变的核心基因,两者均为参与Ⅰ型干扰素应答的关键转录因子。(2)滑膜组织形态观察结果。苏木素-伊红染色显示,股骨颈骨折组髋关节滑膜组织形态正常,无细胞增生、肥大或间质水肿;髋骨关节炎组髋关节滑膜组织细胞增生,有少量新生血管和细胞聚集;SONFH组髋关节滑膜组织细胞大量增殖和聚集,有新生血管。(3)滑膜组织中SONFH滑膜病变核心基因表达检测结果。SONFH组髋关节滑膜组织中IRF4、IRF7、干扰素-α(interferon-α,IFN-α)的mRNA相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.000,P=0.000,P=0.000;P=0.001,P=0.000,P=0.036),髋骨关节炎组髋关节滑膜组织中IRF4、IRF7、IFN-α的mRNA相对表达量均高于股骨颈骨折组(P=0.000,P=0.000,P=0.000)。IRF4、IRF7、IFN-α蛋白在SONFH组髋关节滑膜组织中高表达,SONFH组髋关节滑膜组织中IRF4、IRF7、IFN-α的蛋白相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.001,P=0.000,P=0.000;P=0.000,P=0.014,P=0.000),髋骨关节炎组髋关节滑膜组织中IRF4、IRF7、IFN-α的蛋白相对表达量均高于股骨颈骨折组(P=0.002,P=0.005,P=0.000)。(4)SONFH滑膜病变靶细胞检测结果。SONFH组髋关节滑膜组织中IRF7、钙黏附蛋白11(cadherin-11,CDH-11)的蛋白相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.001,P=0.000;P=0.000,P=0.001),髋骨关节炎组髋关节滑膜组织中IRF7、CDH-11的蛋白相对表达量高于股骨颈骨折组(P=0.001,P=0.000)。滑膜成纤维细胞为SONFH滑膜病变的靶细胞。(5)细胞验证结果。模型细胞组IRF4、IRF7、IFN-α的mRNA和蛋白相对表达量均高于空白细胞组(P=0.001,P=0.002,P=0.000;P=0.001,P=0.007,P=0.000)。结论:SONFH滑膜病变与免疫炎症反应关系密切,滑膜成纤维细胞可能是SONFH滑膜病变的靶细胞,IRF4和IRF7可能是其潜在的靶点。展开更多
目的:观察全身振动疗法(whole body vibration therapy,WBVT)治疗激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)的效果,并探讨其治疗SONFH的作用机制。方法:将50只SD大鼠随机分为空白组、模型组、WBVT组...目的:观察全身振动疗法(whole body vibration therapy,WBVT)治疗激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)的效果,并探讨其治疗SONFH的作用机制。方法:将50只SD大鼠随机分为空白组、模型组、WBVT组、Yoda1组、WBVT联合蜘蛛毒液肽(Grammostola spatulata mechanotoxin 4,GsMTx4)组。模型组、WBVT组、Yoda1组、WBVT联合GsMTx4组大鼠采用脂多糖联合甲泼尼龙琥珀酸钠构建SONFH模型。造模后,WBVT组使用WBVT干预,Yoda1组使用Piezo1蛋白激动剂Yoda1干预,WBVT联合GsMTx4组使用WBVT和Piezo1蛋白抑制剂GsMTx4干预。干预结束后,进行大鼠股骨头组织病理学观察(计算股骨头空骨陷窝率)、骨微结构观察,以及股骨头内Piezo1、骨形态发生蛋白2(bone morphogenetic protein 2,BMP2)、Runt相关转录因子2(Runt-related transcription factor 2,Runx2)、低氧诱导因子-1α(hypoxia-inducible factor-1α,HIF-1α)、血管内皮生长因子(vascular endothelial growth factor,VEGF)、分化簇31(cluster of differentiation 31,CD31)/内皮粘蛋白(endomucin,EMCN)蛋白表达量检测。结果:(1)大鼠股骨头组织病理学观察结果。空白组大鼠的股骨头内骨小梁致密且排列整齐。与空白组相比,模型组大鼠股骨头内的骨小梁较为稀疏,骨小梁细小、不连续,且排列紊乱。与模型组相比,WBVT组和Yoda1组大鼠的股骨头内骨小梁数量增多,排列较为整齐。与WBVT组相比,WBVT联合GsMTx4组大鼠的股骨头内骨小梁排列则较为紊乱。模型组、WBVT组、Yoda1组、WBVT联合GsMTx4组大鼠的股骨头空骨陷窝率均高于空白组(P=0.000,P=0.000,P=0.000,P=0.000),WBVT组、Yoda1组大鼠的股骨头空骨陷窝率均低于模型组(P=0.000,P=0.000),WBVT联合GsMTx4组大鼠的股骨头空骨陷窝率高于WBVT组(P=0.000)。(2)大鼠股骨头骨微结构观察结果。WBVT组和Yoda1组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量、骨小梁分离度与空白组的差异均无统计学意义(P=0.213,P=0.081,P=0.384,P=0.471;P=0.435,P=0.131,P=0.104,P=0.126)。模型组和WBVT联合GsMTx4组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均低于空白组(P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000),骨小梁分离度均高于空白组(P=0.000,P=0.000)。WBVT组和Yoda1组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均高于模型组(P=0.000,P=0.002,P=0.000;P=0.000,P=0.007,P=0.014),骨小梁分离度均低于模型组(P=0.000,P=0.000)。WBVT组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量、骨小梁分离度与Yoda1组的差异均无统计学意义(P=0.194,P=0.223,P=0.332,P=0.071)。WBVT联合GsMTx4组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均低于WBVT组(P=0.002,P=0.021,P=0.000),骨小梁分离度高于WBVT组(P=0.000)。(3)大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量检测结果。WBVT组和Yoda1组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量与空白组的差异均无统计学意义(P=0.061,P=0.122,P=0.773,P=0.814,P=0.991;P=0.112,P=0.071,P=0.955,P=0.749,P=0.915)。模型组和WBVT联合GsMTx4组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均低于空白组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。WBVT组和Yoda1组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均高于模型组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。WBVT组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量与Yoda1组的差异均无统计学意义(P=0.962,P=0.179,P=0.214,P=0.990,P=0.975)。WBVT联合GsMTx4组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均低于WBVT组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。(4)大鼠股骨头内CD31/EMCN蛋白表达量检测结果。模型组和WBVT联合GsMTx4组大鼠股骨头内CD31/EMCN表达量均低于空白组(P=0.000,P=0.000)。WBVT组和Yoda1组大鼠股骨头内CD31/EMCN表达量与空白组的差异均无统计学意义(P=0.412,P=0.991)。WBVT组和Yoda1组大鼠股骨头内CD31/EMCN表达量均高于模型组(P=0.000,P=0.000)。WBVT联合GsMTx4组大鼠股骨头内CD31/EMCN表达量低于WBVT组(P=0.000)。结论:WBVT可以促进股骨头坏死组织修复,其作用机制可能与上调Piezo1蛋白的表达影响HIF-1α/VEGF轴,进而促进股骨头内H型血管的生成、改善股骨头血供有关。展开更多
文摘Objective: To assess the curative effect of the stage II femoral head necrosis treated by arthroscopy assisted lesion clearance, bone graft and titanium rod support. Methods: All the patients (including 58 patients 74 hips) were diagnosed as stage II femoral head necrosis according to the ARCO staging system during 2003-2013. In these patients, 15 hips were stage IIA, 34 hips were stage IIB and 25 hips were stage IIC. Located by C-arm and assisted by arthroscopy, minimally-invasive percutaneous pulp core decompression and lesion clearance within the femoral head were accurately performed, and then, the OAM composite of autologous bone marrow was implanted and the femoral head was supported using the titanium rod. Follow-up including the pain score, the Harris hip score and X-ray observation for disease progression were achieved at 6, 12, 24 and 36 months postoperatively, Kaplan-Meier survival curve was used for the survival analysis. Result: The VAS score and the Harris score after operation were better THRAn THRAt of before the surgery, the difference had statistical significance (p Conclusion: Arthroscopy assisted lesion clearance, bone graft and titanium rod support to treat the stage II osteonecrosis of the femoral head are effective and can prevent the femoral head from collapsing. But for stage IIC patients who had a history of the use of hormone, this surgery should be chosen carefully because the outcome is always very poor.
基金a grant from the National Natural Sciences Foundation of China (No. 30170945)
文摘To study the effect of titanium alloy cage on the treatment of the ischemic necrosis of femoral head in dog, the model of the ischemic necrosis of femoral head was made with the liquid nitrogen in 15 hybrid adult dogs. The titanium alloy cage made of a hollow cylinder was driven into the subchondral bone of necrotic femoral head via central channel. The dogs were divided into 3 groups, each group was sacrificed 3, 6, 12 weeks after the operation respectively. No collapse of femoral head was observed after the operation. The position of the cages was good on radiograph. Microscopically, the cancellous bone of necrotic femoral head rebuilt gradually and grew into cage. After 12 weeks of creeping substitution, the cancellous bone filled up the hollow cavity and holes of the cages. It is concluded that the titanium alloy cage can provide structural support for the subchondral bone and prevent collapse and can be used for the treatment of the ischemic necrosis of femoral head.
文摘Objective: To explore the effect of tumor necrosis factor-α(TNF-α)on the occurrence of steroid-induced avascular necrosis of femoral head(SANFH). Methods: Twenty-four rabbits were firstly divided into void group (n=12) and model group (n=12) at random. Prednisone Acetate was injected to the model group(0.32 mg·kg^(-1)·d^(-1)). In the 6 th and 8 th week, two rabbits of the two groups were killed respectively to observe whether the model was successful. The level of TNF-α in serum of the residual rabbits of the two groups was examined in Radioimmunoassay method. Results: The level of TNF-α in model group is significantly higher than that in void group(P<0.001) under the premise of the model of SANFH success by histological observation. Conclusion: The rise of level of TNF-α may be one of the most important factors in the occurrence of SANFH.
文摘To investigate the significance of bone mineral changes in the pathogenic process of steroid-induced osteonecrosis in rabbits. Methods： Seventy adult female Japanese White rabbits were randomly divided into five groups Animals in steroid group received an intramuscular injection of methylprednisolone acetate （4 mg/kg） once a week, and killed in four different time after first treatment. Animals in control group received an intramuscular injection with the same volume of normal saline, while 150 kU penicillin was injected twice a week for preventing infection in all groups. The contents of serum calcium （Ca） and phosphorus （P） were determined and the bone mineral densities of the femoral head and neck were measured at the 2nd, 4th, 8th and 10th weeks after first treatment. Meanwhile the general condition such as weight, spirit and hair of rabbits was observed. Results： Compared with the control group, the weight of rabbits in steroid group lost since the first week, and progressively aggravated; the bone mineral density of the femoral head and neck was lowered since the 2nd and 4th week respectively （P〈0.05, P〈0.01）, and lowered more quickly in femoral neck than in femoral head. In steroid group, the bone mineral density of the femoral neck at the 10th week was significantly lower than that at the 8th week （P〈0.05） Compared with the control group, the serum levels of Ca and P in steroid group were lowered since the 2nd week （P〈0.05, P〈0.01）. In steroid group, the serum Ca level at the 10th week was lower than that at the 8th week, and the serum P level waslowered more quickly than Ca level was. Conclusion： Osteonecrosis appears in rabbits shortly after corticoids are first administered, and osteonecrosis in rabbits is chronologically associated with the onset of hypocalcaemia, hypophosphatemia and lowered bone mineral density. Steroid-induced osteonecrosis may be relevant to bone mineral loss and density lowering of the femoral head and neck.
文摘目的:探讨补肾壮骨方治疗非创伤性股骨头坏死(non-traumatic osteonecrosis of the femoral head,NONFH)肝肾亏虚证的功效内涵。方法:①网络药理学研究。检索TCMIP v2.0、ETCM2.0、HERB数据库,收集补肾壮骨方的靶标基因,从项目组前期研究中获取NONFH肝肾亏虚证相关差异表达基因,以NONFH肝肾亏虚证典型症状为关键词检索NONFH肝肾亏虚证典型症状相关基因。将上述基因合并,构建补肾壮骨方治疗NONFH肝肾亏虚证蛋白质互作网络,从中筛选关键靶标基因,并对其进行KEGG信号通路富集分析,结合文献对相关信号通路进行药理作用分析。以靶标基因与信号通路、信号通路与药理作用的映射关系为基础,结合文献报道,构建补肾壮骨方治疗NONFH肝肾亏虚证“组方中药-关键靶标-信号通路-功效-药理作用-临床症状”关联网络。②临床研究。选择77例(120髋)NONFH肝肾亏虚证患者,采用口服补肾壮骨方治疗6个月。分别采用股骨头坏死临床疗效评价标准和北京中医药大学X线评价系统进行临床疗效和影像学疗效评价。结果:①网络药理学研究结果。从构建的补肾壮骨方治疗NONFH肝肾亏虚证蛋白质互作网络中共筛选出556个关键靶标基因,这些基因共参与39条与NONFH肝肾亏虚证有关的信号通路,主要涉及纠正骨代谢紊乱、纠正脂代谢紊乱、矫正免疫-炎症失衡、改善血液循环受阻4种药理作用。纠正骨代谢紊乱涉及靶标基因183个,纠正脂代谢紊乱涉及靶标基因176个,矫正免疫-炎症失衡涉及靶标基因171个,改善血液循环受阻涉及靶标基因125个。构建的“组方中药-关键靶标-信号通路-功效-药理作用-临床症状”关联网络直观显示了补肾壮骨方治疗NONFH肝肾亏虚证的功效内涵。②临床研究结果。临床疗效评价结果显示,治疗6个月后患者的髋关节疼痛强度评分、髋关节屈曲功能评分、行走距离评分及临床疗效总分均较治疗前降低[(5.86±1.96)分,(2.26±1.84)分,t=25.672,P=0.000;(5.76±1.62)分,(3.46±1.68)分,t=38.411,P=0.000;(6.31±1.41)分,(0.78±0.74)分,t=46.771,P=0.000;(5.92±1.18)分,(2.32±1.06)分,t=48.263,P=0.000];临床疗效优88髋、良28髋、可2髋、差2髋。影像学疗效评价结果显示,治疗后3年影像学疗效优17髋、良25髋、可67髋、差11髋;股骨头形态稳定109髋、进展11髋,坏死灶改善67髋、稳定34髋、进展19髋,骨关节炎稳定100髋、进展20髋。结论:补肾壮骨方治疗NONFH肝肾亏虚证的机制为纠正骨代谢和脂代谢紊乱、免疫-炎症失衡及血液循环受阻,其中纠正骨代谢紊乱可能是最主要的机制。
文摘目的:探讨激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)滑膜病变的分子机制。方法:(1)转录组测序及生物信息学分析。收集9例接受全髋关节置换术的患者(SONFH患者3例、髋骨关节炎患者3例和股骨颈骨折患者3例)术中切除的髋关节滑膜组织,进行转录组测序和生物信息学分析,筛选SONFH滑膜病变核心基因。(2)滑膜组织检测。根据标本来源将髋关节滑膜组织分为SONFH组、髋骨关节炎组和股骨颈骨折组。观察各组髋关节滑膜组织的组织形态,采用实时定量PCR检测3组髋关节滑膜组织中SONFH滑膜病变核心基因的mRNA相对表达量,采用蛋白质印迹法和免疫组织化学染色法检测3组髋关节滑膜组织中SONFH滑膜病变核心基因的蛋白相对表达量。采用免疫荧光染色法检测SONFH滑膜病变的靶细胞。(3)细胞验证。培养大鼠滑膜成纤维细胞,构建滑膜炎细胞模型。采用实时定量PCR及蛋白质印迹法检测空白细胞(空白细胞组)和滑膜炎模型细胞(模型细胞组)中SONFH滑膜病变核心基因的表达。结果:(1)转录组测序和生物信息学分析结果。经对不同患者来源的髋关节滑膜组织进行差异基因分析,共筛选出1001个与SONFH髋关节滑膜病变相关的基因,这些基因与免疫反应和外泌体有关,其中干扰素调节因子(interferon regulatory factor,IRF)4和IRF7是SONFH髋关节滑膜病变的核心基因,两者均为参与Ⅰ型干扰素应答的关键转录因子。(2)滑膜组织形态观察结果。苏木素-伊红染色显示,股骨颈骨折组髋关节滑膜组织形态正常,无细胞增生、肥大或间质水肿;髋骨关节炎组髋关节滑膜组织细胞增生,有少量新生血管和细胞聚集;SONFH组髋关节滑膜组织细胞大量增殖和聚集,有新生血管。(3)滑膜组织中SONFH滑膜病变核心基因表达检测结果。SONFH组髋关节滑膜组织中IRF4、IRF7、干扰素-α(interferon-α,IFN-α)的mRNA相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.000,P=0.000,P=0.000;P=0.001,P=0.000,P=0.036),髋骨关节炎组髋关节滑膜组织中IRF4、IRF7、IFN-α的mRNA相对表达量均高于股骨颈骨折组(P=0.000,P=0.000,P=0.000)。IRF4、IRF7、IFN-α蛋白在SONFH组髋关节滑膜组织中高表达,SONFH组髋关节滑膜组织中IRF4、IRF7、IFN-α的蛋白相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.001,P=0.000,P=0.000;P=0.000,P=0.014,P=0.000),髋骨关节炎组髋关节滑膜组织中IRF4、IRF7、IFN-α的蛋白相对表达量均高于股骨颈骨折组(P=0.002,P=0.005,P=0.000)。(4)SONFH滑膜病变靶细胞检测结果。SONFH组髋关节滑膜组织中IRF7、钙黏附蛋白11(cadherin-11,CDH-11)的蛋白相对表达量均高于股骨颈骨折组和髋骨关节炎组(P=0.001,P=0.000;P=0.000,P=0.001),髋骨关节炎组髋关节滑膜组织中IRF7、CDH-11的蛋白相对表达量高于股骨颈骨折组(P=0.001,P=0.000)。滑膜成纤维细胞为SONFH滑膜病变的靶细胞。(5)细胞验证结果。模型细胞组IRF4、IRF7、IFN-α的mRNA和蛋白相对表达量均高于空白细胞组(P=0.001,P=0.002,P=0.000;P=0.001,P=0.007,P=0.000)。结论:SONFH滑膜病变与免疫炎症反应关系密切,滑膜成纤维细胞可能是SONFH滑膜病变的靶细胞,IRF4和IRF7可能是其潜在的靶点。
文摘目的:观察全身振动疗法(whole body vibration therapy,WBVT)治疗激素性股骨头坏死(steroid-induced osteonecrosis of the femoral head,SONFH)的效果,并探讨其治疗SONFH的作用机制。方法:将50只SD大鼠随机分为空白组、模型组、WBVT组、Yoda1组、WBVT联合蜘蛛毒液肽(Grammostola spatulata mechanotoxin 4,GsMTx4)组。模型组、WBVT组、Yoda1组、WBVT联合GsMTx4组大鼠采用脂多糖联合甲泼尼龙琥珀酸钠构建SONFH模型。造模后,WBVT组使用WBVT干预,Yoda1组使用Piezo1蛋白激动剂Yoda1干预,WBVT联合GsMTx4组使用WBVT和Piezo1蛋白抑制剂GsMTx4干预。干预结束后,进行大鼠股骨头组织病理学观察(计算股骨头空骨陷窝率)、骨微结构观察,以及股骨头内Piezo1、骨形态发生蛋白2(bone morphogenetic protein 2,BMP2)、Runt相关转录因子2(Runt-related transcription factor 2,Runx2)、低氧诱导因子-1α(hypoxia-inducible factor-1α,HIF-1α)、血管内皮生长因子(vascular endothelial growth factor,VEGF)、分化簇31(cluster of differentiation 31,CD31)/内皮粘蛋白(endomucin,EMCN)蛋白表达量检测。结果:(1)大鼠股骨头组织病理学观察结果。空白组大鼠的股骨头内骨小梁致密且排列整齐。与空白组相比,模型组大鼠股骨头内的骨小梁较为稀疏,骨小梁细小、不连续,且排列紊乱。与模型组相比,WBVT组和Yoda1组大鼠的股骨头内骨小梁数量增多,排列较为整齐。与WBVT组相比,WBVT联合GsMTx4组大鼠的股骨头内骨小梁排列则较为紊乱。模型组、WBVT组、Yoda1组、WBVT联合GsMTx4组大鼠的股骨头空骨陷窝率均高于空白组(P=0.000,P=0.000,P=0.000,P=0.000),WBVT组、Yoda1组大鼠的股骨头空骨陷窝率均低于模型组(P=0.000,P=0.000),WBVT联合GsMTx4组大鼠的股骨头空骨陷窝率高于WBVT组(P=0.000)。(2)大鼠股骨头骨微结构观察结果。WBVT组和Yoda1组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量、骨小梁分离度与空白组的差异均无统计学意义(P=0.213,P=0.081,P=0.384,P=0.471;P=0.435,P=0.131,P=0.104,P=0.126)。模型组和WBVT联合GsMTx4组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均低于空白组(P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000),骨小梁分离度均高于空白组(P=0.000,P=0.000)。WBVT组和Yoda1组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均高于模型组(P=0.000,P=0.002,P=0.000;P=0.000,P=0.007,P=0.014),骨小梁分离度均低于模型组(P=0.000,P=0.000)。WBVT组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量、骨小梁分离度与Yoda1组的差异均无统计学意义(P=0.194,P=0.223,P=0.332,P=0.071)。WBVT联合GsMTx4组大鼠的股骨头骨体积分数、骨小梁厚度、骨小梁数量均低于WBVT组(P=0.002,P=0.021,P=0.000),骨小梁分离度高于WBVT组(P=0.000)。(3)大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量检测结果。WBVT组和Yoda1组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量与空白组的差异均无统计学意义(P=0.061,P=0.122,P=0.773,P=0.814,P=0.991;P=0.112,P=0.071,P=0.955,P=0.749,P=0.915)。模型组和WBVT联合GsMTx4组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均低于空白组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。WBVT组和Yoda1组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均高于模型组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000;P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。WBVT组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量与Yoda1组的差异均无统计学意义(P=0.962,P=0.179,P=0.214,P=0.990,P=0.975)。WBVT联合GsMTx4组大鼠股骨头内Piezo1、BMP2、Runx2、HIF-1α、VEGF蛋白表达量均低于WBVT组(P=0.000,P=0.000,P=0.000,P=0.000,P=0.000)。(4)大鼠股骨头内CD31/EMCN蛋白表达量检测结果。模型组和WBVT联合GsMTx4组大鼠股骨头内CD31/EMCN表达量均低于空白组(P=0.000,P=0.000)。WBVT组和Yoda1组大鼠股骨头内CD31/EMCN表达量与空白组的差异均无统计学意义(P=0.412,P=0.991)。WBVT组和Yoda1组大鼠股骨头内CD31/EMCN表达量均高于模型组(P=0.000,P=0.000)。WBVT联合GsMTx4组大鼠股骨头内CD31/EMCN表达量低于WBVT组(P=0.000)。结论:WBVT可以促进股骨头坏死组织修复,其作用机制可能与上调Piezo1蛋白的表达影响HIF-1α/VEGF轴,进而促进股骨头内H型血管的生成、改善股骨头血供有关。
