Objective: To clarify the effect of intraarterial chemotherapy on vascular endothelial growth factor (VEGF) expres- sion and microvessel density (MVD) count in carcinoma of the cervix. Methods: Before intraarterial ch...Objective: To clarify the effect of intraarterial chemotherapy on vascular endothelial growth factor (VEGF) expres- sion and microvessel density (MVD) count in carcinoma of the cervix. Methods: Before intraarterial chemotherapy and after 2–3 weeks of therapy, the expression of VEGF and MVD count in 36 carcinoma tissues of locally advanced cervical cancer were determined by CD34. Results: Before intraarterial chemotherapy and after 2–3 weeks, the expression of VEGF were 75% (27/36) and 30.6% (11/36) respectively, and MVD were reduced obviously (P<0.001). Conclusion:?The intraarterial chemotherapy can reduce the expression of VEGF and MVD, and adjust malignancy of cervical cancer, and cut down the postoperative metastasis.展开更多
文摘目的:研究褪黑素(MT)对宫内缺血-再灌注胎鼠脑组织自由基和细胞凋亡的影响。方法:将75只妊娠第19天SD大鼠随机分为对照组(S组)、缺血-再灌注组(I-R组)和MT组,I-R组通过同时钳夹孕鼠双侧子宫、卵巢动脉血供20 min后恢复血供,建立大鼠宫内缺血-再灌注模型;MT组孕鼠在阻断血供的同时腹腔注射MT(10 mg/kg)。分别于再灌注1、6、12、24、48 h剖宫取胎鼠,测定胎鼠脑组织的超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)和丙二醛(MDA)水平,采用TUNEL法测定胎鼠脑细胞凋亡指数。结果:与S组比较,I-R组1 h SOD、GSH-Px活力下降,6 h MDA含量及脑皮质细胞凋亡指数上升,同时随着再灌注时间的延长,改变趋于明显;与I-R组比较,MT组6 h起SOD、GSH-Px活力均显著升高,12 h起MDA含量和脑细胞凋亡指数均显著下降。结论:腹腔注射MT同步处理对宫内缺血-再灌注胎鼠脑组织有清除自由基、减少细胞凋亡及神经保护的作用。
文摘Objective: To clarify the effect of intraarterial chemotherapy on vascular endothelial growth factor (VEGF) expres- sion and microvessel density (MVD) count in carcinoma of the cervix. Methods: Before intraarterial chemotherapy and after 2–3 weeks of therapy, the expression of VEGF and MVD count in 36 carcinoma tissues of locally advanced cervical cancer were determined by CD34. Results: Before intraarterial chemotherapy and after 2–3 weeks, the expression of VEGF were 75% (27/36) and 30.6% (11/36) respectively, and MVD were reduced obviously (P<0.001). Conclusion:?The intraarterial chemotherapy can reduce the expression of VEGF and MVD, and adjust malignancy of cervical cancer, and cut down the postoperative metastasis.