目的观察异丙酚对全身高温(whole body hypetthermia,WBH)导致的大鼠海马神经元超微结构及天冬氨酸特异性半胱氨酸蛋白酶-3(Caspase-3)表达的影响。方法300~350g的健康雄性Wister大鼠63只,随机分为3组,每组21只:空白对照组(A...目的观察异丙酚对全身高温(whole body hypetthermia,WBH)导致的大鼠海马神经元超微结构及天冬氨酸特异性半胱氨酸蛋白酶-3(Caspase-3)表达的影响。方法300~350g的健康雄性Wister大鼠63只,随机分为3组,每组21只:空白对照组(A组)、WBH异丙酚麻醉组(B组)和WBH水合氯醛麻醉组(C组)。采用热辐射法建立大鼠WBH模型,6h后处死大鼠,其中每组20只大鼠用免疫组织化学法检测其海马神经元Caspase-3的表达并计算其灰度值,每组1只大鼠用电镜观察其海马CA1区神经元的超微结构。结果A组大鼠海马区神经元无Caspase-3表达,B、C两组大鼠海马区神经元有Caspase-3表达,B组较C组Caspase-3表达平均灰度值减小。B、C两组大鼠海马神经元超微结构发生改变、细胞器水肿,部分线粒体空化,内质网稀疏,突触前膜、后膜结构不完整,可见自噬体结构;B组大鼠的神经元超微结构损害较C组轻。结论异丙酚能减轻WBH引起的大鼠海马神经元Caspase-3的表达和超微结构的损害。展开更多
AIM:To evaluate the surgical treatment methods of giant cell tumors(GCT) of long bone in conjunction with inserted microwave antennas induced hyperthermia.METHODS:46patients,included the surgical procedures,the onco...AIM:To evaluate the surgical treatment methods of giant cell tumors(GCT) of long bone in conjunction with inserted microwave antennas induced hyperthermia.METHODS:46patients,included the surgical procedures,the oncology results,the functions of the limbs and the complications were analyzed.RESULTS:Follow-up 3.5 to 9 years(mean 5.5years).All patients were evaluated according to oncological and orthopaedic criteria.Two tumors were recurred.Orthopaedic furction were perfect in 44 patients and were fair in 2.Infection was found in 2 patients.CONCLUSION:The surgical procedure to treat the giant cell tumors of long bone by inserted microwave antennas induced hyperthermia is a definitive surgical method which is safe and confident.展开更多
文摘目的观察异丙酚对全身高温(whole body hypetthermia,WBH)导致的大鼠海马神经元超微结构及天冬氨酸特异性半胱氨酸蛋白酶-3(Caspase-3)表达的影响。方法300~350g的健康雄性Wister大鼠63只,随机分为3组,每组21只:空白对照组(A组)、WBH异丙酚麻醉组(B组)和WBH水合氯醛麻醉组(C组)。采用热辐射法建立大鼠WBH模型,6h后处死大鼠,其中每组20只大鼠用免疫组织化学法检测其海马神经元Caspase-3的表达并计算其灰度值,每组1只大鼠用电镜观察其海马CA1区神经元的超微结构。结果A组大鼠海马区神经元无Caspase-3表达,B、C两组大鼠海马区神经元有Caspase-3表达,B组较C组Caspase-3表达平均灰度值减小。B、C两组大鼠海马神经元超微结构发生改变、细胞器水肿,部分线粒体空化,内质网稀疏,突触前膜、后膜结构不完整,可见自噬体结构;B组大鼠的神经元超微结构损害较C组轻。结论异丙酚能减轻WBH引起的大鼠海马神经元Caspase-3的表达和超微结构的损害。
文摘AIM:To evaluate the surgical treatment methods of giant cell tumors(GCT) of long bone in conjunction with inserted microwave antennas induced hyperthermia.METHODS:46patients,included the surgical procedures,the oncology results,the functions of the limbs and the complications were analyzed.RESULTS:Follow-up 3.5 to 9 years(mean 5.5years).All patients were evaluated according to oncological and orthopaedic criteria.Two tumors were recurred.Orthopaedic furction were perfect in 44 patients and were fair in 2.Infection was found in 2 patients.CONCLUSION:The surgical procedure to treat the giant cell tumors of long bone by inserted microwave antennas induced hyperthermia is a definitive surgical method which is safe and confident.