布托啡诺对大鼠κ-阿片受体mRNA表达的影响

目的 观察鞘内注射布托啡诺对大鼠中枢神经系统κ-阿片受体mRNA(κ-mRNA)表达的影响.方法 96只成年雄性SD大鼠随机分为布托啡诺10、20、30μg组(L、M、H组)和生理盐水组(N组),每组24只.观察鞘内注射不同剂量布托啡诺或生理盐水后甩尾潜伏期(TFL)的变化,检测脊髓、脑干及脑皮质κ-mRNA的表达.结果 鞘内注射布托啡诺具有镇痛作用,并呈时间和剂量依赖性地增加脊髓、脑干、脑皮质中的κ-mRNA的表达.结论 鞘内注射布托啡诺可促进大鼠脊髓、脑皮质和脑干κ-mRNA的表达.     

肝细胞生长因子对胃癌细胞增殖、迁移和侵袭的影响

目的 :探讨肝细胞生长因子(hepatocyte growth factor,HGF)对胃癌细胞株AGS增殖、迁移和侵袭的影响。方法:体外培养AGS细胞,应用浓度为25、50、100 ng/m L的HGF处理AGS细胞,采用CCK-8法检测AGS细胞的增殖,transwell法分别检测HGF对AGS细胞迁移、侵袭能力的影响。结果:CCK-8法检测结果显示,HGF对AGS细胞有促增殖作用。随着HGF浓度的增加或作用时间的延长,细胞增殖活力呈上升趋势,在72 h最为明显,呈时间、浓度依赖关系。Transwell迁移、侵袭实验显示,不同浓度的HGF对AGS细胞的迁移和侵袭能力有促进作用,以50 ng/m L最为明显(P     

环状RNA 0004390对食管鳞状细胞癌增殖、凋亡、迁移及侵袭的影响

目的:探讨环状RNA 0004390(CircRNA_0004390)在食管鳞状细胞癌中的表达及对细胞增殖、凋亡、迁移及侵袭的影响。方法:选择50例食管鳞癌细胞患者为研究对象。食管鳞状细胞癌和人正常食管上皮细胞购自美国典型培养物保藏中心。构建CircRNA_0004390-shRNA沉默载体转染至ECA-109食管鳞状...     

酒石酸布托啡诺对舒芬太尼诱发咳嗽反射的影响

目的观察酒石酸布托啡诺对舒芬太尼诱发咳嗽反射的影响。 方法择期行腹腔镜胆囊切除术患者82例,ASAⅠ或Ⅱ级,随机分为两组,分别于麻醉诱导前静注以生理盐水稀释至5 ml的酒石酸布托啡诺1 mg (试验组)或生理盐水5 ml(对照组),5 min后在3 s内静注舒芬太尼0.3 μg/kg,观察并记录两组患者2 min内咳嗽反射的发生率和强度。 结果试验组患者咳嗽反射的发生率、强度明显低于对照组。 结论酒石酸布托啡诺1 mg可以抑制舒芬太尼诱发的咳嗽反射。     

黄芩苷对胆囊癌细胞增殖、迁移及凋亡的影响

目的:观察黄芩苷对胆囊癌细胞增殖、侵袭及凋亡等生物学行为的影响。方法:用梯度浓度的黄芩苷(0、12.5、25、50、100、200 μmol/L)处理胆囊癌细胞24 h,正常胆囊癌细胞为对照,采用细胞计数试剂盒(CCK-8)检测黄芩苷对胆囊癌细胞增殖的影响,同时采用划痕实验、Transwell检测胆囊癌细胞的迁移及侵袭...     

吸烟对腹腔镜胆囊切除术后布托啡诺镇痛镇静的影响

目的观察吸烟对腹腔镜胆囊切除术患者术后布托啡诺镇痛镇静的影响。方法 200例行腹腔镜胆囊切除术男性患者,分为吸烟组(S组,n=100)和非吸烟组(NS组,n=100),术后均采用静脉布托啡诺镇痛。在术后1、2、6、12、18、24、48h分别采用数字评分法(NRS)和肌肉活动评分法(MAAS)评估镇痛和镇静程度。结果 S组术后1、2、6hNRS评分高于NS组,术后1、2hMAAS评分高于NS组(P<0.05)。结论吸烟患者行腹腔镜胆囊切除手术后,布托啡诺的镇痛和镇静效果弱于非吸烟患者。     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

目的 探讨布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响.方法 健康雄性SD大鼠40只,体重200～250 g,随机分为5组,每组8只.假手术组(S组)开胸暴露心脏,左冠状动脉前降支仅穿线但不结扎;缺血再灌注组(IR组)结扎左冠状动脉前降支30 min,再灌注120 min;S组和IR组于缺血前10 min经股静脉注射生理盐水5ml/kg,随后以5 ml·kg-1·h-1的速率静脉输注;布托啡诺预先给药组(B组)缺血前10 min经股静脉注射布托啡诺25μg/kg,余处理同IR组;Nor-BNI组(N组)缺血前20 min经股静脉注射选择性K受体阻断剂Nor-BNI 2 mg/kg,余处理同B组;格列本脲组(G组)缺血前10 min经股静脉注射KATP通道阻滞剂格列本脲1 mg/kg,余处理同B组.于再灌注120 min时取股动脉血样,采用ELISA法测定血清肿瘤坏死因子α(TNF-α)、白细胞介素6(IL-6)和IL-10的浓度;采用TTC染色法测定心肌梗死区及心肌缺血区,计算心肌梗死面积.结果 与S组比较,其余各组血清TNF-α、IL-6和IL-10浓度升高(P<0.05);与IR组比较,B组、N组和G组血清TNF-α、IL-6浓度降低,IL-10浓度升高,心肌梗死面积减小(P<0.05);与B组比较,N组和G组血清TNF-α、IL-6浓度升高,IL-10浓度降低,心肌梗死面积增加(P<0.05).结论 布托啡诺预先给药可减轻大鼠心肌缺血再灌注损伤,可能与激活κ受体和KATP通道有关.     

不同剂量布托啡诺静注对病人呼吸功能和镇静程度的影响

目的研究静脉注射不同剂量布托啡诺对病人呼吸功能和镇静程度的影响。方法选择择期手术病人45例,ASAⅠ或Ⅱ级,年龄20~55岁,体重50~80kg,随机分成三组(n=15),麻醉前静注布托啡诺10μg/kg(Ⅰ组)、20μg/kg(Ⅱ组)、30μg/kg(Ⅲ组)。观察给药前(基础值)(T0)、给药后1min(T1)、3min(T2)、5min(T3)、7min(T4)、10min(T5)、15min(T6)、20min(T7)、30min(T8)各时点的潮气量(VT)、RR、SpO2、PETCO2、分钟通气量(MV)、HR、MAP等呼吸循环参数及BIS和镇静/警觉(OAA/S)评分。结果Ⅰ组、Ⅱ组RR、VT、MV各时点数值在注药后略有降低,Ⅲ组则在T1~T4时明显低于T0时(P<0.05)(RR降低24.3%~28.2%,VT降低22.1%~31.0%,MV降低31.1%~48.5%);PETCO2和SpO2各组均在正常范围内波动;Ⅰ组、Ⅱ组BIS变化不显著;Ⅲ组在T2~T8时BIS降低9.7%~14.5%(P<0.01),相应的OAA/S评分也明显下降(P<0.05)。结论小剂量布托啡诺(10~30μg/kg)静注是安全的。当剂量达到30μg/kg时对病人呼吸功能有轻度抑制作用(持续时间≤7min),同时BIS值下降,显示有轻度镇静作用。     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺对剖宫产术中米索前列醇引起的寒战反应的影响

目的 观察静注布托啡诺对剖宫产术中米索前列醇引起的寒战反应的影响.方法 选择90例ASA Ⅰ或Ⅱ级剖宫产手术患者,随机均分为三组:米索前列醇组(Ⅰ组)、布托啡诺十米索前列醇组(Ⅱ组)、对照组(Ⅲ组).Ⅰ组于胎儿娩出后含服米索前列醇0.4 mg同时静注生理盐水5 ml;Ⅱ组含服米索前列醇0.4 mg同时静注布托啡诺1 mg/5 ml;Ⅲ组于胎儿娩出后静注牛理盐水5 ml.观察给药后三组患者寒战发生的情况及镇静评分.结果 Ⅰ组寒战反应发生率高于Ⅱ和Ⅲ组(P＜0.05或P＜0.01),Ⅱ、Ⅲ组Ramsay镇静评分满意率高于Ⅰ组(P＜0.01).结论 布托啡诺能有效地预防刮宫产术中米索前列醇引起的寒战,且镇静效果满意.     

布托啡诺调节音猬因子/神经胶质瘤联合转录因子1信号通路对肺癌细胞增殖、凋亡和血管生成的影响

目的探讨布托啡诺调节音猬因子(SHH)/神经胶质瘤联合转录因子1(GLI1)信号通路对肺癌细胞增殖、凋亡和血管生成的影响。方法二苯基四氮唑溴盐(MTT)法检测0.5、1.0、2.0、4.0、8.0、16.0 μmol/L布托啡诺对肺癌A549细胞增殖的影响, 获得最佳干预浓度;将肺癌A549细胞按照完全随机分组法分为5组(每组6孔):对照组、环巴胺组、布托啡诺组、布托啡诺+空载质粒(pcDNA-NC)组、布托啡诺+过表达SHH质粒(pc-SHH)组。对照组无处理, 环巴胺组加入10 μmol/L环巴胺, 布托啡诺组加入8 μmol/L布托啡诺, 布托啡诺+pcDNA-NC组加入8 μmol/L布托啡诺并转染pcDNA-NC, 布托啡诺+pc-SHH组加入8 μmol/L布托啡诺并转染pc-SHH。分别用MTT法、5-乙炔基-2’’-脱氧尿苷(Edu)染色、流式细胞术、荧光定量聚合酶链反应(FQ-PCR)检测各组细胞波长为490 nm时的光密度值D490(24、48 h)、增殖率、凋亡率、SHH信使RNA(mRNA)和GLI1 mRNA水平;Matrigel基质胶三维培养观察各组细胞管腔...     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.     

布托啡诺预先给药对大鼠心肌缺血再灌注损伤的影响

Objective To investigate the effects of butorphanol pretreatment on myocardial ischemia-reperfusion (IR) injury in rats. Methods Forty healthy male SD rats weighing 200-250 g were randomly divided into 5 groups (n = 8 each) : sham operation group (group S); IR group; butorphanol pretreatment group (group B); Nor-BNI group (group N) and glibenclamide group (group G) . In group IR, B, N and G, myocardial IR was produced by occlusion of left anterior descending artery (LAD) for 30 min followed by 120 min reperfusion. In group S and IR, normal saline S ml/kg was injected via femoral vein 10 min before ischemia and then continuously infused at a rate of 5 ml· kg -1· h-1 iv. In group B, butorphanol 25 μg/kg was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group IR. In group N, Nor-BNI 2 mg/kg (a selective κ-opioid receptor antagonist) was injected via femoral vein 20 min before ischemia and the rest method was the same as that described in group B. In group G, glibenclamide 1 mg/kg (a KATP channel blocker) was injected via femoral vein 10 min before ischemia and the rest method was the same as that described in group B. Blood samples were taken from femoral artery at 120 min of reperfusion for determination of the concentrations of serum TNF-α, IL-6 and IL-10 by ELISA. Myocardial infarct area and ischemic area were measured by TTC staining and myocardial infarct size was calculated. Results The concentrations of serum TNF-a, IL-6 and IL-10 were significantly higher in the other four groups than in group S (P < 0.05) . The concentrations of serum TNF-α andIL-6 were significantly decreased while IL-10 increased, and the myocardial infarct size was significantly decreased in group B, N and G as compared with group IR ( P < 0.05) . The concentrations of serum TNF-α and IL-6 were significantly increased while the concentration of IL-10 decreased) and the myocardial infarct size was significantly increased in group N and G as compared with group B ( P < 0.05). Conclusion Butorphanol pretreatment can protect the myocardium against IR injury in rate via activating κ receptor and KATP channel.