补肾、健脾、活血法对去卵巢致骨质疏松症大鼠骨骼、骨骼肌IκBα含量影响的对比研究

目的观察补肾、健脾、活血法对去卵巢致骨质疏松症大鼠骨骼、骨骼肌IкBα含量变化的影响,探讨中医防治骨质疏松症的作用机制。方法将SD雌性大鼠随机分为正常组、模型组、补肾组、健脾组、活血组。采用酶联免疫吸附(ELISA)法测定大鼠骨骼、骨骼肌IкBα含量变化。结果 1与正常组比较,模型组大鼠骨骼的IкBα含量显著降低(P0.01);与模型组比较,补肾组、健脾组、活血组大鼠骨骼的IкBα含量明显升高(P0.01),其中补肾组升高程度比较明显,其次为健脾组。2与正常组比较,模型组大鼠骨骼肌的IкBα含量显著降低(P0.01);与模型组比较,补肾组、健脾组、活血组大鼠骨骼肌的IкBα含量均有升高,但与模型组比较无统计学意义。结论 1骨质疏松症大鼠骨骼、骨骼肌的IкBα含量均降低,提示骨质疏松症发生可能与骨骼、骨骼肌协调性下降有关。2补肾法和健脾法提高骨质疏松症大鼠的骨骼、骨骼肌IкBα含量,对骨质疏松症具有一定的防治作用。3补肾法是防治骨质疏松症的基本治法,健脾法是辅助补肾法治疗骨质疏松症的一个重要治法。     

中医不同治法对骨质疏松症小鼠骨骼、骨骼肌Ihh含 量影响的比较研究

目的观察不同治法对骨质疏松症小鼠骨骼、骨骼肌Ihh含量变化的影响,探讨中医防治骨质疏松症的作用机制。方 法除正常组外,将OPG基因敲除小鼠随机分为5组,即模型对照组(模型组）、补肾中药组(补肾组）、健脾中药组（健脾组）、 活血化瘀中药组（活血组)和对照药组(福善美组）。采用酶联免疫法测定小鼠骨骼、骨骼肌Ihh含量变化。结果①与正常 组比较,模型组小鼠骨骼肌的Ihh含量显著降低(P <0.01);与模型组比较,补肾组小鼠骨骼肌的Ihh含量明显升高(P < 0. 05),其次为健脾组(P <0. 05)。②与正常组比较,模型组小鼠骨骼的Ihh含量显著降低（P <0. 01);与模型组比较,补肾组 小鼠骨骼肌的Ihh含量明显升高(P <0. 01),其次为健脾组（P <0. 01 ),活血组和福善美组升高程度也比较明显（P <0. 01)。 结论①骨质疏松症的形成,可能与骨骼、骨骼肌Ihh含量异常变化有关。②补肾、健脾方法通过提高骨质疏松症大鼠的骨 骼、骨骼肌Ihh的含量,对骨质疏松症具有一定的防治作用。     

中医不同治法对骨质疏松症大鼠骨密度及骨骼肌Ca2+-Mg2+-ATP酶影响的比较研究

目的观察中医不同治法对糖皮质激素诱导骨质疏松症大鼠骨密度、骨骼肌Ca2+-Mg2+-ATP酶变化的影响,探讨中医防治骨质疏松症的作用机制。方法将120只雌雄各半的大鼠随机分为正常对照组、模型对照组(模空组)、补肾中药组、健脾中药组、活血化瘀中药组和骨疏康中药组6个组。用地塞米松肌注造模。实验结束后,腹主动脉取血处死大鼠,用酶联免疫法测定大鼠骨骼肌Ca2+-Mg2+-ATP酶,用双能X线骨密度仪测大鼠离体股骨上1/3骨密度。结果①与正常组比较,模空组大鼠离体股骨上1/3骨密度显著降低(P<0.01);与模空组比较,各治疗组大鼠股骨上1/3骨密度均有不同程度的升高,其中以补肾中药组升高程度最为显著(P<0.01),其余各治疗组骨密度较模空组升高程度比较无统计学意义。②与正常组比较,其他各组大鼠骨骼肌的Ca2+-Mg2+-ATP酶显著降低(P<0.01);与模空组比较,各治疗组大鼠骨骼肌的Ca2+-Mg2+-ATP酶均明显升高(P<0.01);补肾组大鼠骨骼肌的Ca2+-Mg2+-ATP酶升高最为明显,明显高于骨疏康组、活血组、健脾组,差异具有非常显著性(P<0.01);活血组大鼠骨骼肌的Ca2+-Mg2+-ATP酶升高程度最低,与补肾组、健脾组、骨疏康组比较具有统计学差异(P<0.01);健脾组和骨疏康组升高程度也比较明显,但二者比较无统计学意义。结论补肾、健脾方法对骨质疏松症大鼠的骨密度和Ca2+-Mg2+-ATP酶具有一定调节作用。     

中医不同治法对绝经后骨质疏松症大鼠骨骼、骨骼肌SDF-1含量影响的比较研究

目的探究用中医滋补肾阴、温补肾阳、健脾、补肾健脾治法治疗绝经后骨质疏松症是否会引起骨骼、骨骼肌中SDF-1水平的变化,从而扩展中医防治骨质疏松症的现代医学机制。方法除正常组外,将去卵巢致骨质疏松症的大鼠随机分为模型组、补肾阴组、补肾阳组、健脾组、补肾健脾组和福善美组。采用酶联免疫吸附法检测各组大鼠血清ALP、TRACP及骨骼、骨骼肌中SDF-1的水平。结果模型组大鼠血清ALP和TRACP水平均比正常组显著升高(P<0.01);各治疗组均比模型组显著降低(P<0.01),以福善美组降低最为明显,其次为补肾健脾组。②模型组大鼠的骨骼和骨骼肌SDF-1水平均比正常组显著升高(P<0.01);与模型组相比,补肾阳组、福善美组大鼠骨组织SDF-1水平显著降低(P<0.01),健脾组、补肾阴组也降低(P<0.05),福善美组、健脾组大鼠的骨骼肌SDF-1水平显著降低(P<0.01)。结论骨质疏松症的发生与骨骼、骨骼肌中SDF-1水平的升高有关。②补肾阴、补肾阳、健脾和补肾健脾法可以减少绝经后骨质疏松症大鼠骨骼、骨骼肌中SDF-1的水平,从而对骨质疏松症起到一定的防治作用。     

中医不同方法对骨质疏松症大鼠骨骼、 骨骼肌I型胶原蛋白表达影响的实验研究

目的观察骨质疏松症大鼠骨骼、骨骼肌I型胶原蛋白表达变化的影响,探讨中医防治骨质疏 松症的作用机制。方法将120只雌雄各半的大鼠随机分为正常对照组、模型对照组、补肾中药组、 健脾中药组、活血化瘀中药组和骨疏康中药组6个组。采用Western blot方法测定大鼠骨骼、骨骼肌 I型胶原蛋白表达。结果①各组大鼠骨组织均可检测到I型胶原的蛋白表达。与正常组比较,各 组大鼠骨组织I型胶原的蛋白表达均明显下降（！<0.01);与模空组比较,各治疗组大鼠骨组织I型 胶原的蛋白表达均明显升高,其中补肾组、骨疏康组升高趋势最显著（P<0. 01 )。②各组大鼠骨骼肌 均可检测到I型胶原的蛋白表达。与正常组比较,各组大鼠骨骼肌I型胶原的蛋白表达均明显下降 (P<0.01);与模空组比较,各治疗组大鼠骨骼肌I型胶原的蛋白表达均明显升高（!<0.01),其中补 肾组升高趋势最明显。结论①骨质疏松症的形成,可能与骨骼、骨骼肌I型胶原表达的异常变化有 关。②补肾、健脾方法通过调控骨质疏松症大鼠的骨骼、骨骼肌I型胶原蛋白表达,对骨质疏松症具 有一定的防治作用。     

Ang-1在去卵巢骨质疏松症大鼠骨组织中表达变化以及中医不同治法对其影响的实验研究

目的观察去卵巢骨质疏松症模型大鼠的骨组织中血管生成素1(Ang-1)mRNA和蛋白含量变化,及中药不同方剂对其影响,探讨中药组方治疗骨质疏松的可行性。方法骨质疏松症模型的建立采用切除雌性大鼠双侧卵巢的方法。运用补肾填精中药复方、活血化瘀中药复方、补肾活血中药复方对模型大鼠灌胃12周,用骨疏康作为阳性药物对照组,还有正常组和模型空白组。RT-PCR检测各组骨组织Ang-1mRNA相对表达量;ELISA法检测各组骨组织Ang-1蛋白含量。结果去卵巢骨质疏松症模型大鼠的骨组织中Ang-1mRNA相对表达量与正常组比较,显著降低(P0.01);与模型空白组比较,各个用药组Ang-1mRNA相对表达量显著升高(P0.01);但各个用药组间比较无统计学意义。去卵巢骨质疏松症模型大鼠骨组织中Ang-1蛋白含量与正常组比较,显著降低(P0.01);与模型空白组比较,各个用药组Ang-1含量显著升高(P0.01);各个用药组间比较,补肾活血组Ang-1含量升高最为显著,与补肾填精组和活血化瘀组比较有显著性差异(P0.01)。结论补肾活血中药复方可提高Ang-1mRNA相对表达量及其蛋白含量,且优于单纯的补肾填精和活血化瘀中药复方,起到防止骨质疏松症的作用。     

中医不同治法对骨质疏松症小鼠骨密度、碱性磷酸酶、抗酒石酸酸性磷酸酶影响的实验研究

目的 观察中医不同治法对骨质疏松症小鼠骨密度（BMD)、碱性磷酸酶(ALP)、抗酒石酸酸性磷酸酶(TRAP)变化的影响，探讨中医防治骨质疏松症的机制。方法 除正常组外，将骨保护素（OPG)基因敲除小鼠随机分为模型组、补肾组、健脾组、活血组和福善美组。检测各组小鼠BMD及血清ALP、TRAP含量。结果 1.与正常组比较，模型组小鼠BMD显著降低(P <0. 05)；与模型组比较，补肾组与健脾组BMD显著升高(P < 0. 05)。2.与正常组比较，模型组小鼠血清ALP含量显著升高(P <0.05);与模型组比较，补肾组、健脾组和福善美组小鼠血清ALP含量显著降低(P <0.05)。3.与正常组比较，模型组小鼠血清TRAP含量显著升高(P <0.05);与模型组比较，补肾组与健脾组小鼠血清TRAP含量显著降低(P <0.05)。结论补肾和健脾方法能显著提高骨质疏松小鼠的骨量，明显抑制成破骨活性，使小鼠脱离高骨转换状态，起到治疗骨质疏松症的作用。     

中医不同治法对骨质疏松症大鼠抗酒石酸酸性磷酸酶含量影响的比较研究

目的观察中医不同治法对糖皮质激素诱导骨质疏松症大鼠骨抗酒石酸酸性磷酸酶含量的影响,探讨中医防治骨质疏松症的作用机制。方法将120只雌雄各半的大鼠随机分为正常对照组、模型对照组、补肾中药组、健脾中药组、活血化瘀中药组和骨疏康中药组6个组,用地塞米松肌注造模。实验结束后,腹主动脉取血处死大鼠,用酶联免疫法检测各组大鼠血清抗酒石酸酸性磷酸酶的含量。结果与正常组比较,模型组大鼠血清TRACP含量升高极为显著(P0.01);与模型组比较,各治疗组大鼠血清TRACP含量均明显降低,其中以补肾组和骨疏康组降低最为明显,与其他各组比较具有极显著差异(P0.01)。结论补肾方法通过降低抗酒石酸酸性磷酸酶含量对骨质疏松症具有一定的防治作用。     

补肾复方对去卵巢大鼠MEK1、ERK2基因表达的调控 作用

目的研究补肾中药复方(鹿茸、牡蛎、淫羊藿)对去卵巢骨质疏松症大鼠的影响,探讨肾虚骨质疏松症的病理机制,为中医药防治骨质疏松症提供实验依据。方法采用摘除雌性大鼠双侧卵巢的方法复制骨质疏松症模型,以正常组作为标准对照,模型组作为空白对照,盖天力组作为阳性对照,补肾中药复方低、中、高剂量组作为实验组。各用药组灌胃给药12周。采用腹主动脉取血法采集大鼠血清测定血骨钙素(BGP)和抗酒石酸酸性磷酸酶(TRACP),并用DEXA骨密度仪检测左侧股骨骨密度;右侧股骨匀浆提取骨组织中的Total RNA,RT-Real Time PCR,检测MEK1及ERK2的mRNA表达水平。结果模型组BGP水平显著低于正常组(P0.01),TRAP水平较正常组显著升高(P0.01);正常组和补肾中药复方组的股骨骨密度均高于模型组(P0.05);ERK2 mRNA相对表达量明显高于模型组(P0.01),MEK1mRNA相对表达量明显低于模型组(P0.01)。结论补肾中药复方具有防治去卵巢大鼠骨质疏松的作用,其机制与调控MEK1、ERK2基因表达有关。     

补肾益髓中药对糖皮质激素性骨质疏松症大鼠骨组织Runx2的mRNA及蛋白表达的影响

目的 观察糖皮质激素性骨质疏松症(GIOP)大鼠模型骨组织Runt相关基因2(Runx2)mRNA及蛋白表达,探讨GIOP的发病机制以及补肾益髓中药的疗效及其调控作用.方法 采用后肢肌注地塞米松(2.5 mg/kg,每周2次,连续9w)的方法复制GIOP大鼠模型,按体重分层随机分为正常组、模型空白组、补肾益髓中药组、补中益气颗粒组、血府逐瘀胶囊组、骨疏康颗粒阳性对照组.灌胃给药9w.应用XR-26型双能X线骨密度仪测定股骨骨密度,以评价动物模型的成立及药物疗效.实时定量RT-PCR(Real-Time Quantitative RT-PCR)检测骨组织Runx2 mRNA表达,Western blot检测骨组织Runx2蛋白表达.结果 (1)股骨骨密度:与正常组比较,模型空白组明显降低(P<0.01);与模型空白组比较,补肾益髓中药组明显升高(P<0.01),骨疏康颗粒阳性对照组明显升高(P<0.05),补中益气颗粒组和血府逐瘀胶囊组虽有升高趋势,但无统计学意义(P>0.05).(2)骨组织Runx2 mRNA及蛋白表达:与正常组比较,模型空白组明显降低(P<0.01);与模型空白组比较,补肾益髓中药组明显上调(P<0.01),骨疏康颗粒阳性对照组也有明显上调(P<0.05),补中益气颗粒组和血府逐瘀胶囊组虽有所升高,但无统计学意义(P>0.05).结论 (1)肌注地塞米松可以成功复制GIOP大鼠模型,(2)骨组织Runx2 mRNA及蛋白表达水平降低可能是GIOP的发病机制之一,(3)应用补肾益髓中药具有明显防治效果,疗效优于健脾中药和活血中药,其作用机理与上调骨组织Runx2 mRNA及蛋白表达密切相关.     

杭州健康女性定量骨超声测定原发性骨质疏松

目的 评价杭州健康女性骨超声速度(SOS)值随增龄减少和骨质疏松患病率，建立杭州地区女性骨超声速度值参考数据库。方法 定量超声法测定1208例杭州地区健康女性桡骨远端(RAD)，第3指骨近节(PLX)，第V跖骨(MTR)和胫骨中段(TIB)的超声速度值。结果 RAD、PLX、MTR和TIBSOS峰值(Peak of SOS)均出现在40-45岁，TJB的SOS峰值出现在35—40岁，此后随年龄增长而下降。绝经后妇女在绝经后早期和晚期各有1个SOS快速减少期，前见于桡骨近端，平均年减少率为2．4％，后见于胫骨中段，平均年减少率为1．8％。各部位骨SOS累积减少率随年龄增长而增加，到85岁4部位累积减少为13％-18％。60岁以后骨质疏松性症(OP)检出率为45％-70％，OP检出率以桡骨远端最高，60-70岁平均为67％，第3指骨近端次之约50％，胫骨中段最低为36％；75岁以后分别为70％，65％和45％。结论 全身各部位骨超声速度值到达峰值的年龄不同，峰值也各有差异。绝经后妇女骨超声速度值随年龄增加减少较快，应予激素和补钙治疗，桡骨远端为本地区SOS检测和OP检出的敏感部位。     

Importance of echocardiography in prognosis of surgical outcomes in cholecystitis in elderly patients

The authors propose to use more often echocardiography (EchoCG) in examination of elderly (over 60 years) of age patients with cholecystitis that permits to increase surgical activity to 92.4%. Left ventricular ejection fraction is the most informative. When this fraction is lower than 45% surgery must be recommended on vital indications only. EchoCG was used in 155 patients with cholecystitis, 131 of them were operated. 2 (1.52%) patients died due to acute cardio-vascular insufficiency and pulmonary artery thromboembolism.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

目的 评价脊髓胶质细胞在小鼠骨癌痛形成中的作用.方法 健康雄性C3H/He小鼠40只,周龄8～10周,体重18～22 g,随机分为4组(n=10):假手术组(S组)、骨癌痛组(B组)、PBS组(P组)和米诺环素组(M组).S组跟骨骨髓腔内注射PBS 10 μl;余3组跟骨骨髓腔内注射含2×105个骨纤维肉瘤细胞的PBS 10 μl制备骨癌痛模型,于造模前即刻开始PBS组鞘内注射PBS 5μl,M组鞘内注射米诺环素(用PBS溶解为0.2 mmol/L)5μl,1次/d,连续11 d.于造模前1 d、造模后即刻、3、5、7、9、11 d时测定机械痛阈;于造模后3、7、9、11 d机械痛阈测定结束后测定冷痛阈.痛阈测定结束后处死小鼠,取脊髓组织,测定神经胶质纤维酸性蛋白(GFAP)和CD11b的表达水平.结果 与S组比较,B组和P组造模后3-11 d时、M组造模后3、5 d时机械痛阈升高,B组、P组和M组造模后7～11 d时冷痛阈升高,脊髓CD11b和GFAP表达上调(P<0.05).与B组比较,M组造模后3-11 d时机械痛阈降低,造模后7-11 d时冷痛阈降低,脊髓CD11b和GFAP表达下调(P<0.05).结论 脊髓胶质细胞(星形胶质细胞和小胶质细胞)的激活参与了小鼠骨癌痛的形成.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.     

脊髓胶质细胞在小鼠骨癌痛形成中的作用

Objective To evaluate the role of gliocyte in the spinal cord in the development of bone cancer pain (BCP) in mice. Methods Forty male C3H/He mice aged 8-10 weeks weighing 18-22 g were randomly divided into 4 groups ( n = 10 each) : group I sham operation (group S) , group II BCP, group Ⅲ PBS and group IV minocyline (group M) . In group BCP, PBS and M, bone cancer pain was produced by injection of NCTC2472 fibrosarcoma cell suspension (2 x 105 cells) 10 μl into medullary cavity of calcaneus bone, while in group S, PBS solution 10 μl was injected instead of cancer cell suspension. In group PBS and M, PBS 5 μl and minocyline 5 μl (dissolved to 0.2 mmol/L in PBS)_were given IT immediately before cancer cell inoculation once a day for 11 consecutive days respectively. Mechanical pain threshold was measured at 1 d before cancer cell inoculation, and at 0, 3, 5, 7, 9 and 11d after cancer cell inoculation. Cold pain threshold was measured at 3, 7, 9 and 11d after cancer cell inoculation. The animals were killed after measurement of pain threshold and L4-6, segment of spinal cord was removed for determination of GFAP and CD11b expression by Western blot. Results Compared with group S, mechanical pain threshold was significantly increased at 3-11 d after cancer cell inoculation in group BCP and PBS, and at 3 and S d after cancer cell inoculation in group M, and cold pain threshold was significantly increased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was up-regulated in group BCP, PBS and M ( P < 0.05) . Compared with group BCP, mechanical pain threshold was significantly decreased at 3-11 d after cancer cell inoculation, cold pain threshold was significantly decreased at 7-11 d after cancer cell inoculation, and expression of CD11b and GFAP was down-regulated in group M ( P <0.05) . ConclusionThe activiton of gliocyte in the spinal cord is involved in the development of bone cancer pian in mice.