GLUT4在多囊卵巢综合征大鼠子宫内膜中的表达及意义

目的： 探讨葡萄糖转移因子4（GLUT4）在多囊卵巢综合征（PCOS）大鼠子宫内膜中的表达，评价其与子宫内膜胰岛素抵抗(IR)的关系。方法: 54只85日龄SD雌性大鼠，随机分为：① 对照组（20只）；② PCOS组（17只）；③ 二甲双胍治疗组（17只）。其中后两组先参照Poretsky等的方法复制PCOS大鼠模型，造模成功后，再分别喂服安慰剂或二甲双胍， 14 d后断头处死各组大鼠并取材。采用免疫组织化学染色Elivision^TM Plus两步法检测对照组、PCOS组及治疗组大鼠子宫内膜GLUT4蛋白的表达。结果: PCOS组大鼠子宫内膜腺上皮中GLUT4和INS-R蛋白表达明显低于对照组（P＜0.01，P＜0.05），INS蛋白表达水平明显高于对照组水平（P＜0.01）；治疗组GLUT4表达显著高于PCOS组（P＜0.01），但仍低于对照组（P＜0.01），INS表达较PCOS组显著降低（P＜0.05），但仍高于对照组（P＜0.05）；子宫内膜间质中无GLUT4的表达，INS和INS-R表达情况与腺上皮相似。结论: PCOS大鼠子宫内膜GLUT4表达减少和子宫内膜的IR有关。     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

CD31、CD105和PTEN在宫颈癌中的表达及其临床病理意义

目的:分析CD31、CD105和PTEN蛋白与宫颈癌临床病理指标的关系,探讨其在宫颈癌发生、发展、转移及预后中的意义及相互关系。方法:采用免疫组化SP法检测65例宫颈癌组织、25例正常宫颈组织中的CD31、CD105标记微血管密度(MVD)情况和PTEN蛋白表达情况。结果:CD31在宫颈癌组织中MVD为(48.33±3.66)高于正常宫颈组织中MVD(8.68±1.26),差异有统计学意义(P<0.05);CD31-MVD值与宫颈癌组织学类型、临床分期有关(P<0.05),而与年龄、淋巴结转移及组织学分化程度无关(P>0.05)。CD105在宫颈癌组织中MVD为(32.56±2.81)高于正常宫颈组织中MVD(1.69±2.14),差异有统计学意义(P<0.05);MVD值与宫颈癌临床分期、有无淋巴结转移有关(P<0.05),而与年龄、组织学分化程度及组织学类型无关(P>0.05)。正常宫颈组织PTEN阳性表达率为100.0%(25/25)高于宫颈癌组织36.92%(24/65),差异有统计学意义(P<0.01)。宫颈癌组织PTEN阳性表达与临床分期、淋巴结转移有关(P<0.05),而与年龄、分化程度、组织类型等无关(P>0.05)。宫颈癌组织中CD31和CD105的表达呈正相关(rs=0.83,P<0.05),CD31和PTEN呈负相关(rs=-0.68,P<0.05),CD105与PTEN呈负相关(rs=-0.76,P<0.05)。结论:联合检测PTEN、CD31与CD105可作为宫颈癌诊断、治疗、转移及评估预后的重要指标。     

MRI不同序列对子宫内膜癌定性和定量诊断的价值

目的比较DWI与T 2WI诊断子宫内膜癌敏感性以及测量病变大小准确性的差别,以更好地指导临床医师阅读MRI。方法34例子宫内膜癌患者术前均已行多模态3.0T MRI检查,以术后病理为金标准,比较这两种序列诊断EC的灵敏度,同时分别比较两种序列测量癌灶上下径、左右径与术后径线的差别。结果DWI诊断子宫内膜癌的敏感性(97%)高于T 2WI(80%),DWI所测得癌灶上下径、左右径与术后均有差别(P上下径=0.002,P左右径=0.002),T 2WI均无差别(P上下径=0.579,P左右径=0.261)。结论DWI可明显提高MRI诊断子宫内膜癌的敏感性,而T 2WI测量癌灶大小的准确性更高。     

脑星形细胞瘤中TIP30、VEGF和CD34的表达及其相关性研究

Objective To investigate the expression and relationship of TIP30(HIV-1 Tat interactive protein 2), vascular endothelial growth factor (VEGF) and MVD (detected by CD34) in the angiogenesis of human brain astrocytomas. Methods Expression of TIP30, VEGF and CD34 in 19 cases of normal brain tissue and 71 cases of astrocytoma were immunohistochemically examined with Elivision plus two-step method. Results The positive expression of TIP30 could be seen in cytoplasm of neuroglial cells and neurons of 19 normal brain tissues. The positive expression rate of TIP30 in 71 cases of astrocytoma was 33.80 % (24/ 71). The positive expression rate of TIP30 in astrocytoma of different grades was 52 % for grade Ⅱ, 34.78 % for grade Ⅲ and 13.04 % for grade Ⅳ. The positive expression rate of TIP30 in high grade (Ⅲ+Ⅳ) of astrocytoma was found significantly lower than that in low grade(Ⅱ) (χ2=5.71, P <0.05); The expression of VEGF and MVD detected by CD34 in astrocytomas were higher than that in normal brain tissue and increased as the tumor grade increased; In astrocytoma, the negtive correlation was found between the expression of TIP30 and VEGF (r=-0.428, P<0.05); no correlation was found between TIP30 and MVD(r=-0.065, P 0.05); the positive correlation was found between VEGF and MVD(r=0.684, P<0.01). Conclusion The positive expression rate of TIP30 in normal brain tissue is significantly higher than that in astrocytoma. The positive expression rate of TIP30 significantly decreases as the pathological grade of the astrocytoma increases; The expression of TIP30 and VEGF is negatively correlated in astrocytoma.     

VEGF、CD34、INS在育龄妇女子宫内膜息肉的表达及意义

目的:探讨育龄妇女EP组织内VEGF、CD34和INS的表达及其与EP发生的关系。方法:免疫组化SP法观察50例EP组织中VEGF、CD34和INS的表达。结果:EP组织腺上皮VEGF表达明显增强(P<0.01),MVD值明显增高,INS表达与正常子宫内膜相比无差异(P>0.05)。EP组织MVD值与VEGF表达呈正相关(r=0.813 2),而VEGF的表达强度与INS表达无明显相关关系(r=-0.179 7)。结论:VEGF与EP的发生有关,VEGF促进EP组织内的血管生成。EP组织中INS表达与正常子宫内膜无差异,目前未提示INS与EP发病的相关性。