水泥型羟基磷灰石人工骨的制备及性能分析(英文)

目的:制备水泥型羟基磷灰石人工骨,并进行性能分析。方法:高温法制备出磷酸四钙,然后在模拟体内环境下将其与无水磷酸氢钙发生水化固化反应,合成水泥型羟基磷灰石人工骨,采用X线衍射、扫描电镜观察、体积密度、吸水率、孔隙率及耐压强度测量进行性能分析。结果:该人工骨主要成分为低结晶度的羟基磷灰石;微观结构呈针状或花瓣状晶体构成,微孔直径约4-10 μm,孔隙相互交通;平均体积密度为1.922 g·cm~(-3);平均吸水率为15.503％;孔隙率为29.777％;耐压强度为42.70 MPa。结论:本研究所制人工骨具有三维空间结构,力学性能符合人体非负重骨植骨要求。     

外固定器治疗伴有严重复合损伤的小腿骨折

外固定器治疗伴有严重复合损伤的小腿骨折西安医科大学二院（陕西７１０００３）贺西京，王坤正，金辽沙，陈君长我们从１９８９年起应用外固定器治疗伴有严重复合损伤的胫腓骨骨折共１１例，收到了满意的临床效果。临床资料胫腓骨骨折１１例均伴有其它部位的严重损伤，其...     

The Experimental Study on Treatment of Glucocorticoid-Induced Ischemic Necrosis of Femoral Head by Gu Fu Sheng Capsule

Objective:To observe the effects of Gu Fu Sheng Capsule(骨复生胶囊 GFSC)on nitric oxide(NO)leveland fibrinolytic activity in rabbits with glucocorticoid-induced ischemic necrosis of femoral head(GINFH)so as to explain the therapeutic mechanism of GFSC.Methods:48 rabbits were randomly divided into 4groups:GFSC group A,Ma Shi Gu Pian(马氏骨片 MSGP)group B,model group C,and control group D.The models of GINFH were produced by injection of glucocorticoid hormone for 8 weeks.From the 9thweek,GFSC decoction was given to the rabbits of the group A(45g·kg~(-1)·d~(-1))and MSGP extract was givento the group B(0.17 g kg~(-1)·d~(-1))and the same volume of normal saline to group C and D by intragastricinfusion.The content of plasma nitric oxide(NO),and activities of tissue-type plasminogen activator(t-PA),and plasminogen activator inhibitor(PAI)were detected after the hormone was injected for 4 and 8weeks and after the drugs were given for 4 weeks.Results:Compared with the group D,the contents ofNO and t-PA activity in the group C decreased significantly(P<0.01),but the activity of PAI increasedsignificantly(P<0.01).Compared with the group C,the contents of NO and t-PA activity in the group Aand B increased significantly(P<0.05),but the activity of PAI decreased significantly(P<0.05),with nosignificant difference between the two treatment groups(P>0.05).Conclusion:GFSC could increase thelevel of NO,protect endotheolial cells and improve fibrinolytic activity,which might be the mechanism ofGFSC in curing GINFH.     

The Experimental Study on Treatment of Glucocorticoid-Induced Ischemic Necrosis of Femoral Head by Gu Fu Sheng Capsule

Objective: To observe the effects of Gu Fu Sheng Capsule (骨复生胶囊 GFSC) on nitric oxide (NO) level and fibrinolytic activity in rabbits with glucocorticoid-induced ischemic necrosis of femoral head (GINFH)so as to explain the therapeutic mechanism of GFSC Methods: 48 rabbits were randomly divided into 4 The models of GINFH were produced by injection of glucocorticoid hormone for 8 weeks. From the 9th week, GFSC decoction was given to the rabbits of the group A (45g. kg-1 d-1) and MSGP extract was given to the group B (0.17 g kg-1 d-1) and the same volume of normal saline to group C and D by intragastric infusion. The content of plasma nitric oxide (NO), and activities of tissue-type plasminogen activator (t-PA), and plasminogen activator inhibitor (PAI) were detected after the hormone was injected for 4 and 8 weeks and after the drugs were given for 4 weeks. Results: Compared with the group D, the contents of NO and t-PA activity in the group C decreased significantly (P＜0.01), but the activity of PAI increased significantly (P＜0.01). Compared with the group C, the contents of NO and t-PA activity in the group A and B increased significantly (P＜0.05), but the activity of PAI decreased significantly (P＜0.05), with no significant difference between the two treatment groups (P＞0.05). Conclusion: GFSC could increase the level of NO, protect endotheolial cells and improve fibrinolytic activity, which might be the mechanism of GFSC in curing GINFH.     

影响马尾综合征疗效的相关因素分析

目的：探讨影响马尾综合征疗效的重要因素，提高该病的治愈率。方法：对我院近10年治疗的24例马尾综合征患为期2年随访，采用Logistical回归分析进行统计学处理。结果：24例患中，18例疗效满意，6例溃有功能障碍。结论：减压手术时间和发病急缓是影响该病疗效的主要因素。     

甲状旁腺功能亢进症误诊骨科疾病7例

甲状旁腺功能亢进(hyperparathyroidism,HPT)过去被认为是罕见疾病，但随着血自动生化检查的发展，已被认为是老年人常见的内分泌系统疾病。该病可引起骨质变化，主要表现为骨质疏松，也有一些患者可表现出特殊的X线表现，易被误诊。本文就这方面情况予以讨论。     

淫羊藿总黄酮对大鼠成骨细胞代谢调控的机制研究

目的：探讨淫羊藿总黄酮对大鼠成骨细胞代谢调控的影响。方法:取新生SD大鼠的颅骨,胶原酶法培养成骨细胞。应用MTT法、对硝基苯磷酸盐法(PNPP)和RT-PCR方法观察淫羊藿总黄酮对体外培养成骨细胞的增殖、碱性磷酸酶活性和OPG mRNA,RANKL mRNA表达的影响。结果:淫羊藿总黄酮能刺激成骨细胞增殖,提高碱性磷酸酶活性,增强OPG mRNA的表达（P<0.05或P<0.01）。结论:淫羊藿总黄酮能促进成骨细胞的增殖、分化,增加OPG mRNA的表达,对RANKL的表达无明显影响。     

淫羊藿总黄酮对成骨细胞中OPG和RANKL mRNA基因表达影响的实验研究

目的:探讨淫羊藿总黄酮对大鼠成骨细胞中骨保护素(OPG)和核因子κB受体激活因子配体(RANKL) mRNA基因表达的影响.方法:体外培养成骨细胞,分别加入含0.1、1、10、100 ng/ml淫羊藿总黄酮(HEF)的培养液,48 h及96 h后分别提取细胞总mRNA,用RT-PCR方法分析OPG/RANKL的mRNA的表达,进行半定量分析.结果:培养48 h后,与对照组比较,HEF增强了OPG mRNA的表达,有显著性差异(P＜0.05或P＜0.01),VOPG/VRANKL比值增大;96 h后,HEF明显增强了OPG mRNA的表达,各浓度组与对照组相比,均有显著性差异(P＜0.05或P＜0.01),各浓度组VOPG/VRANKL比值增大,有显著性差异(P＜0.05或P＜0.01).结论:淫羊藿总黄酮可能通过增加成骨细胞OPG的表达来抑制破骨细胞的分化和成熟,从而抑制骨吸收,达到治疗骨质疏松症的目的.     

经皮注射重组人转化生长因子β1促进骨折愈合的实验研究

目的 运用基因重组的方法，对人转化生长因子β１（ｔｒａｎｓｆｏｒｍｉｎｇ ｇｒｏｗｔｈ ｆａｃｔｏｒ－β１）进行基因克隆，并在大肠杆菌中表达。同时观察其促进骨折愈合的作用。方法 以ｐＢＶ２２０作为原核细胞表达载体，将ＴＧＦ－β１ｃＤＮＡ片段定向重组到ｐＢＶ２２０的多克隆位点上，构建原核细胞表达性质粒ｐＴＧＦ－β１，并转化至大肠杆菌中进行温度诱导表达。制造兔桡骨骨折模型，经皮注射重组ＴＧＦ－β１，并     

透明质酸对体外培养大骨节病软骨细胞增殖与凋亡的影响

目的 通过观察透明质酸(HA)对体外培养的大骨节病(Kashin-Beck disease,KBD)软骨细胞增殖、凋亡的影响,为临床上HA治疗KBD提供实验依据.方法 依据<大骨节病诊断标准>(GB 16003-1995)收集KBD患者和遭遇意外事故的病人(对照组)关节软骨,分离、体外培养关节软骨细胞.选用第2代细胞进行实验.两组软骨细胞分别给予不同剂量的HA,按HA剂量分为0、100、500 mg/L组.通过二苯甲唑溴盐(MTT)实验,测定第2、4、6天HA对KBD组、对照组软骨细胞增殖的影响.并通过流式细胞检测观察HA对软骨细胞凋亡的影响.结果 对照组在第4天时,500 mg/L组(0.140 ±0.049)促软骨细胞增殖作用大于0 mg/L组(0.116±0.021);KBD组在第6天时,500 mg/L组(0.179±0.081)与0 mg/L组(0.128 ±0.017)比较,显示了明显的促增殖作用(P<0.05).KBD组细胞凋亡率100、500 mg/L组(10.458±1.143、7.877±1.346)均较0 mg/L组(12.860±2.159)下降(P<0.05);对照组500 ms/L组(4.045±1.204)较0 mg/L组(7.128±1.244)细胞凋亡率下降(P<0.05).结论 HA对KBD软骨细胞具有促进增殖和抑制软骨细胞凋亡的作用,其中500 mg/L的HA改善KBD软骨细胞代谢的作用较100 mg/L明显.