荧光皮肤血流仪在猪皮肤撕脱伤撕脱皮瓣血循环判断中的应用

目的探讨荧光皮肤血流仪在皮肤撕脱伤撕脱组织血循环判断中的应用.方法选择检疫后的白色小猪为实验动物,于猪后肢通过手术形成一12cm×4cm的任意型皮瓣,掀起皮瓣后原位缝回.术后猪耳缘静脉注射荧光素钠,20min后用荧光皮肤血流仪检测皮瓣不同部位荧光强度,计算荧光强度指数(Dye fluorescence index,DFI).一周后观察皮瓣成活情况,计算皮瓣成活与坏死的面积,分析DFI数值与皮瓣组织活力间的关系,探索荧光皮肤血流仪对猪皮瓣血循环的判断规律;在此基础上,复制皮肤撕脱伤模型,分别用荧光皮肤血流仪和传统荧光法对撕脱皮瓣组织坏死面积进行预测,对比分析二者预测的准确性.结果一周后皮瓣远端发生坏死,近端成活良好,平均坏死面积为43%,平均成活面积57%;成活区域DFI平均值为62%,坏死区域DFI平均值为11%,两者有统计学差异(P＜0.01).统计分析显示,DFI≤1 8%时,组织可能发生坏死.荧光皮肤血流仪对坏死面积预测的误差为12%,传统荧光法为23%,两者有统计学差异(P＜0.01).结论荧光皮肤血流仪DFI与猪皮瓣血循环灌注有良好的对应关系,它可以对猪皮肤撕脱伤撕脱皮瓣活力做出更为准确的判断.     

荧光皮瓣血循环判断方法

荧光皮瓣血循环判断方法郭树忠综述鲁开化审校皮瓣缺血坏死是整形外科最常见的并发症之一。为了研究并有效地防治皮瓣缺血坏死，需要对皮瓣的血循环进行判断和监测。目前文献已报道了近２０种皮瓣血循环判断的方法，但多数方法部存在一定的缺点，不能广泛应用。因此，研制...     

撕脱皮瓣修剪成真皮下血管网皮瓣后对成活面积影响的研究

目的研究撕脱皮瓣修剪制成真皮下血管网薄皮瓣后对皮瓣成活面积的影响.方法采用3～4月龄白色约克夏小猪7头,麻醉后在自行研制的皮肤撕脱伤模型机中复制撕脱伤模型,将一侧的撕脱皮瓣制成真皮下血管网薄皮瓣,另一侧为撕脱皮瓣,原位缝合;7天后,对两侧皮瓣的成活和坏死面积进行测量和计算分析.结果修剪制成真皮下血管网薄皮瓣后的成活面积为(60.90±15.26)%,而撕脱皮瓣组的成活面积为(40.41±9.23)%,统计学处理两组有显著差异(P＜0.05).结论皮肤撕脱伤撕脱皮瓣修剪制成真皮下血管网薄皮瓣后增加了成活面积.     

撕脱皮瓣血液循环判断方法的实验研究

目的　研究撕脱皮瓣血液循环的判断方法 ,为临床处理皮肤撕脱伤提供理论依据。方法　利用自行研制的皮肤撕脱伤模型机 ,在猪的一侧后肢形成面积为 4cm× 10cm的撕脱皮瓣 ,对侧肢体的相应部位形成相同面积的常规皮瓣作为对照 ,皮瓣形成后 1h测定皮瓣表面温度和激光多普勒指数 ,并从静脉注射荧光素钠用长波 (36 0～4 0 0nm)紫外检测灯观察皮瓣表面的荧光 ,7天后用计算机图像处理系统测算皮瓣成活面积。结果　撕脱皮瓣较常规皮瓣成活面积少 33.16 %。撕脱皮瓣形成后从近端至远端表面温度逐渐下降 ,激光多普勒指数逐渐降低 ,当温度下降超过 2 .4℃、激光多普勒指数下降超过 4 9.80 %时 ,撕脱皮瓣实际成活面积较荧光预测的少 8.5 1% ,撕脱皮瓣有继发性坏死发生。结论　荧光法对皮瓣血液循环的判断及成活面积的预测其结果易得并且比较直观 ,与其他方法联合应用可以提供比较准确的撕脱皮瓣血液循环的判断结果     

皮瓣延迟的机制及其微循环

皮瓣移植能否成活,是由皮瓣各部分是否有能承担组织代谢必需能量的血循环量所决定,即皮瓣成活要求有最低限度的血流存在。皮瓣移植在其成活机理及其微循环方面仍有很多尚未解决的问题。在皮瓣从提升到成活其内部的微循环过度到正常皮肤的微循环方面,皮瓣内组织代谢变化以及如何改     

足部大面积皮肤软组织缺损的皮瓣修复临床分析

目的:比较足部大面积皮肤软组织缺损应用不同类型皮瓣(小腿主干血管逆行皮瓣、皮神经营养血管逆行皮瓣和游离皮瓣)修复的临床效果。方法:57例足部大面积皮肤软组织缺损的患者清创后,应用不同类型的皮瓣进行修复,并比较其成活面积、观察其疗效。其中,小腿主干血管逆行皮瓣14例,面积:7～9cm×11～20cm,平均:8cm×16cm,采用胫后动脉逆行皮瓣3例,腓动脉逆行皮瓣11例;皮神经营养血管逆行皮瓣26例,面积:7～9cm×9～15cm,平均:8cm×11cm,采用腓肠神经营养血管逆行岛状皮瓣23例,隐神经营养血管逆行岛状皮瓣3例;游离皮瓣17例,面积:9.5～15cm×12～28cm,平均:12cm×25cm,采用股前外侧皮瓣13例,隐动脉皮瓣3例,胸背动脉皮瓣1例。结果:57例皮瓣中,完全坏死2例,部分坏死7例,其余全部成活。坏死者全部涉及前足皮肤缺损,其中,主干血管逆行皮瓣完全坏死1例,部分坏死2例;皮神经营养血管逆行皮瓣远端部分坏死5例;游离皮瓣完全坏死1例。统计学分析:皮瓣面积按类型比较(ANOVA),P=0.000,差异有非常显著性意义;皮瓣成活率按类型比较(Kruskal-Wallis Test),P=0.455,差异无显著性意义。经3～18个月随访,所有成活皮瓣血运、外形、质地、功能均满意。结论:大部分足部大面积皮肤软组织缺损可选用皮神经营养血管逆行皮瓣进行修复,但如果涉及前足,特别是缺损较大时,选择游离皮瓣更为适宜。     

一定长宽比狭长窄蒂与任意皮瓣成活面积关系的实验研究

目的 揭示具有一定长宽比例的狭长窄蒂与任意皮瓣成活面积关系. 方法 25头猪被随机分成5组,每组5头,5组皮瓣蒂长宽比分别为0 cm:2 cm、1 cm:2 cm、2 cm:2 cm、3 cm:2 cm、4 cm:2 cm,每个长宽比例的狭长窄蒂均携带5个不同面积的任意皮瓣,分别为2 cm×2 cm、3 cm×3 cm、4 cm×4 cm、5 cm×5 cm和6 cm×6cm,并依次命名为A、B、C、D、E,其中A瓣为B、C、D、E瓣的对照瓣,在每组每只猪的双侧背部均形成A、B、C、D、E皮瓣,顺序随机排列.对每组皮瓣进行大体观察、荧光色素钠染色、ECT血流测定、成活面积分析等. 结果 ①当狭长窄蒂的长宽比例一定时,随着皮瓣面积的增加,皮瓣成活面积也随之增大,但达一定界限时皮瓣远端即发生坏死,而成活面积并未缩小;②当皮瓣大小一定,随着狭长窄蒂的长宽比例增加,皮瓣成活面积不受影响,但达一定界限时皮瓣远端即发生坏死,皮瓣成活面积缩小. 结论 任意皮瓣的蒂部可以设计成狭长状,蒂宽可远远小于瓣宽;一定长宽比的狭长窄蒂所能携带的任意皮瓣成活面积有其最大值,一定范围内增大皮瓣面积或蒂部的长宽比例不会导致皮瓣坏死.     

主干蒂与穿支蒂穿支皮瓣血流动力学的比较研究

目的研究主干蒂与穿支蒂穿支皮瓣血流动力学的差异。方法选成年小型猪4只,雌雄各2只,体重23.0±2.0kg。设计自身对照的以两侧腹壁上动脉主干血管或其穿支为蒂的腹部横行皮瓣,一组为逆行解剖血管蒂至腹壁上动脉主干的穿支皮瓣;一组为腹壁上血管腹直肌穿支为蒂的穿支皮瓣。于术后2h,1、2和3周分别以激光多普勒血流仪测量皮瓣皮肤的血流灌注量,以彩色多普勒超声测定腹壁上动脉的血流速度。术后1周计算皮瓣成活面积。3周时处死动物行氧化铅凝胶动脉灌注皮瓣造影。结果术后2h、1周时主干蒂穿支皮瓣较穿支蒂穿支皮瓣水肿严重;两组皮瓣的皮肤血流灌注量有统计学差异（P〈0.05）,术后2、3周两组皮瓣皮肤的血液灌注量、皮瓣的坏死面积（主干蒂穿支皮瓣组19.73%±3.21%;穿支蒂穿支皮瓣组19.81%±3.33%）无统计学差异（P〉0.05）。术后2h、1周时主干蒂穿支皮瓣组的腹壁上动脉平均流速减慢,与另一组比较有统计学差异（P〈0.05）;术后2、3周时两组接近。3周时皮瓣造影显示主干蒂穿支皮瓣组的腹壁上血管有新生血管。结论1主干为血管蒂的穿支皮瓣血流动力学表现在术后1周皮瓣皮肤血流灌注量下降,但不影响皮瓣的成活面积;2血管主干至其他组织的或受区血管的分支结扎不能对皮瓣起到超灌注的作用。     

应用超声多普勒血流仪监测移植皮瓣血运的体会

目的 报道应用超声多普勒血流仪监测移植皮瓣血运的临床应用价值.方法 应用超声多普勒血流仪监督48例,对比复习较前常规肉眼观察46例,比较移植皮瓣术后早期发现发生血管危象的移植皮瓣成活的情况.结果 应用超声多普勒血流仪观察48例,早期发现发生血管危象9例,处理后皮瓣成活.单纯肉眼观察46例,发生血管危象8例,处理后皮瓣坏死4例.结论 应用超声多普勒血流仪监测移植皮瓣能及早发现血管危象,便于及早处理及提高皮瓣的成活率.     

应用超声多普勒血流仪监测移植皮瓣血运的体会

目的 报道应用超声多普勒血流仪监测移植皮瓣血运的临床应用价值.方法 应用超声多普勒血流仪监督48例,对比复习较前常规肉眼观察46例,比较移植皮瓣术后早期发现发生血管危象的移植皮瓣成活的情况.结果 应用超声多普勒血流仪观察48例,早期发现发生血管危象9例,处理后皮瓣成活.单纯肉眼观察46例,发生血管危象8例,处理后皮瓣坏死4例.结论 应用超声多普勒血流仪监测移植皮瓣能及早发现血管危象,便于及早处理及提高皮瓣的成活率.     

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.