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鼻腔鼻窦黑色素瘤(附4例报告)杨恩英,张燕,范呈晓,张杰英,魏守礼附属二院耳鼻咽喉科(050000)附属二院病理科关键词鼻科;副鼻窦;肿瘤;恶性原发鼻腔、鼻窦黑色素瘤少见,尤其无色黑色素瘤临床常误诊为息肉。本文统计7年鼻腔,鼻窦恶性肿瘤169例,其中... 相似文献
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例1 男,26岁。腰痛伴双下肢麻木40天,下肢瘫痪,小便失禁20天。检查:腰_3棘突叩击痛,胸_(11)以下浅感觉消失,双下肢软瘫。X线平片示胸_8下缘骨质破坏。脊髓碘油造影:腰_3完全梗阻。术中见腰_(1~4)硬脊膜外烂鱼肉样肿瘤,两端未见正常 相似文献
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自由基与肿瘤的发生、发展密切相关,近年来许多学者在这方面进行深入的研究.本文利用兔抗人超氧化物歧化酶(superoxide dismutase,SOD)抗血清对正常胃、小肠、结肠与对应癌组织SOD分布,进行免疫组化定位分析,且进一步利用体视学特征图像分析技术,定量分析各种组织的形态特征及其相关性.从另一角度探讨自由基与癌组织之间某些联系. 相似文献
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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. 相似文献
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目的探讨胎膜早破患者羊水及血清中IL-6、IL-8的水平,胎膜组织中基质金属蛋白酶(MMP-9)的表达情况,IL-6、IL-8与MMP-9是否有相关性.方法随机选择胎膜早破孕妇37例为实验组,其中Ⅰ组为足月胎膜早破22例,Ⅱ组为未足月胎膜早破患者15例,正常足月孕妇25例Ⅲ组作为对照组,用酶联免疫吸附实验测定母血及羊水中IL-6、IL-8水平,用免疫组化(SP)法测定胎膜中MMP-9的水平.结果实验组羊水及血清中IL-6、IL-8的水平明显高于对照组,具有显著性差异(P<0.01);实验组胎膜组织中MMP-9表达水平高于对照组(P<0.05);实验组母血及羊水中IL-6、IL-8均与胎膜组织中MMP-9有相关性(相关系数分别为0.882,0.729).结论母血及羊水中IL-6、IL-8水平变化可作为胎膜早破合并绒毛膜羊膜炎的诊断指标之一,基质金属蛋白酶(MMP-9)在感染引起的胎膜早破中起关键性作用,炎性细胞因子IL-6、Ⅱ-8通过诱导MMP-9的合成和活化,间接导致胎膜早破. 相似文献
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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. 相似文献
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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. 相似文献
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新生儿青霉素皮试价值临床研究 总被引:6,自引:0,他引:6
目的为了探讨青霉素皮肤过敏试验在新生儿时期应用的价值。方法对148例4~28天新生儿采用自身配对方式,分别用500U/ml青霉素皮试液(实验组)及生理盐水(对照组)各0.1ml于左右腕横纹上三指处正中顺皮纹方向皮内注射,20miN后观察结果。结果红晕直径(单位:cm)实验组为1.099±0.68;对照组为1.064±0.691,两组相比P>0.05;4~10天、11~20天、21~28天各日龄组间红晕直径差异无显著意义(P>0.05),4~10天、11~20天两组实验组与对照组红晕直径无差异;而21~28天日龄组实验组红晕直径(1.045±0.608)大于对照组(0.86±0.452)P<0.05;红晕直径大于1cm者,实验组为45.95%,对照组为33.78%;两组相X2=4.566,P<0.05。结论4~20天的新生儿青霉素皮试价值不大,21~28天新生儿青霉素皮试惯用标准判断阳性者,应在对侧做生理盐水对照实验,如果二者红晕直径相等或前者小于后者,应判断为假阳性。 相似文献
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