目的观察肺癌病理大切片技术的应用和临床价值分析。方法临床选择2019年5月—2020年2月在医院接受诊治的非小细胞肺癌患者80例的组织标本,制成病理组织大切片,予以HE染色,染色后予以血清神经元特异性烯醇化酶(neuron specific enolase,N...目的观察肺癌病理大切片技术的应用和临床价值分析。方法临床选择2019年5月—2020年2月在医院接受诊治的非小细胞肺癌患者80例的组织标本,制成病理组织大切片,予以HE染色,染色后予以血清神经元特异性烯醇化酶(neuron specific enolase,NSE)、突触素(synaptophysin,Syn)、嗜铬素A(chromogranin A,CgA)等免疫标志物检测,根据其检测结果分析病理切片诊断,分析非小细胞肺癌的病理大切片诊断结果。结果非小细胞肺癌患者80例中,腺鳞癌14例(17.5%),鳞癌17例(21.3%),腺癌49例(61.3%),其中多种组织类型者37例(46.3%),单一组织类型表现者43例(53.8%);其中腺癌标本的NSE阳性、CgA阳性、Syn阳性指标显著高于腺鳞癌、鳞癌,差异有统计学意义(P<0.05);非小细胞肺癌病理切片神经元特异性烯醇化酶(NSE)、突触素(Syn)、嗜铬素A(CgA)诊断符合率与病理结果比较,差异无统计学意义(P>0.05)。结论对非小细胞肺癌患者进行病理组织大切片检查,可对肿瘤组织的状态进行全面监测,分析肿瘤细胞的异质性有助于为后续治疗及病理诊断提供准确的依据。展开更多
Objective:The aim of our study was to detect the correlation between the expressions of HER2 and VEGF in breast cancer, and their relations with some pathological factors. Methods:By immunohistochemistry technique, th...Objective:The aim of our study was to detect the correlation between the expressions of HER2 and VEGF in breast cancer, and their relations with some pathological factors. Methods:By immunohistochemistry technique, the expressions of HER2 and VEGF in the post-operation samples of 117 cases with breast cancer were assessed, and their relations with some pathological factors were analysed by statistical methods. Fifty samples of hyperplasia of mammary glands were observed as the control. Results: The positive expression rates of HER2 and VEGF in breast cancer were both significantly higher than those in hyperplasia of mammary gland (P<0.05). The expressions of HER2 and VEGF were both correlated to lymph node metastasis (P<0.05), but showed no relations with age, histological type, histological stage, tumor size (P>0.05). The positive expression rate of HER2 had a positive correlation with those of VEGF (P<0.05, r=0.373). Conclusion: The expressions of HER2 and VEGF have no correlations with age, histological type, histological stage, tumor size, but are closely related with lymphatic metastasis. The positive expression rates of HER2 shows a positive correlation with those of VEGF.展开更多
AIM:To investigate the mechanism of liver regeneration induced by fusing the omentum to a small traumatic injury created in the liver. We studied three groups of rats. In one group the rats were omentectomized; in ano...AIM:To investigate the mechanism of liver regeneration induced by fusing the omentum to a small traumatic injury created in the liver. We studied three groups of rats. In one group the rats were omentectomized; in another group the omentum was left in situ and was not activated,and in the third group the omentum was activated by polydextran particles. METHODS:We pre-activated the omentum by injecting polydextran particles and then made a small wedge wound in the rat liver to allow the omentum to fuse to the wound. We monitored the regeneration of the liver by determining the ratio of liver weight/body weight,by histological evaluation (including immune staining for cytokeratin-19,an oval cell marker),and by testing for developmental gene activation using reverse transcription polymerase chain reaction (RT-PCR). RESULTS:There was no liver regeneration in the omentectomized rats,nor was there significant regeneration when the omentum was not activated,even though in this instance the omentum had fusedwith the liver. In contrast,the liver in the rats with the activated omentum expanded to a size 50% greater than the original,and there was histologically an interlying tissue between the wounded liver and the activated omentum in which bile ducts,containing cytokeratin-19 positive oval cells,extended from the wound edge. In this interlying tissue,oval cells were abundant and appeared to proliferate to form new liver tissue. In rats pre-treated with drugs that inhibited hepatocyte growth,liver proliferation was ongoing,indicating that regeneration of the liver was the result of oval cell expansion. CONCLUSION:Activated omentum facilitates liver regeneration following injury by a mechanism that depends largely on oval cell proliferation.展开更多
文摘目的观察肺癌病理大切片技术的应用和临床价值分析。方法临床选择2019年5月—2020年2月在医院接受诊治的非小细胞肺癌患者80例的组织标本,制成病理组织大切片,予以HE染色,染色后予以血清神经元特异性烯醇化酶(neuron specific enolase,NSE)、突触素(synaptophysin,Syn)、嗜铬素A(chromogranin A,CgA)等免疫标志物检测,根据其检测结果分析病理切片诊断,分析非小细胞肺癌的病理大切片诊断结果。结果非小细胞肺癌患者80例中,腺鳞癌14例(17.5%),鳞癌17例(21.3%),腺癌49例(61.3%),其中多种组织类型者37例(46.3%),单一组织类型表现者43例(53.8%);其中腺癌标本的NSE阳性、CgA阳性、Syn阳性指标显著高于腺鳞癌、鳞癌,差异有统计学意义(P<0.05);非小细胞肺癌病理切片神经元特异性烯醇化酶(NSE)、突触素(Syn)、嗜铬素A(CgA)诊断符合率与病理结果比较,差异无统计学意义(P>0.05)。结论对非小细胞肺癌患者进行病理组织大切片检查,可对肿瘤组织的状态进行全面监测,分析肿瘤细胞的异质性有助于为后续治疗及病理诊断提供准确的依据。
文摘Objective:The aim of our study was to detect the correlation between the expressions of HER2 and VEGF in breast cancer, and their relations with some pathological factors. Methods:By immunohistochemistry technique, the expressions of HER2 and VEGF in the post-operation samples of 117 cases with breast cancer were assessed, and their relations with some pathological factors were analysed by statistical methods. Fifty samples of hyperplasia of mammary glands were observed as the control. Results: The positive expression rates of HER2 and VEGF in breast cancer were both significantly higher than those in hyperplasia of mammary gland (P<0.05). The expressions of HER2 and VEGF were both correlated to lymph node metastasis (P<0.05), but showed no relations with age, histological type, histological stage, tumor size (P>0.05). The positive expression rate of HER2 had a positive correlation with those of VEGF (P<0.05, r=0.373). Conclusion: The expressions of HER2 and VEGF have no correlations with age, histological type, histological stage, tumor size, but are closely related with lymphatic metastasis. The positive expression rates of HER2 shows a positive correlation with those of VEGF.
基金Supported by An Unrestricted Grant from the Hektoen Institute of Medicine, Chicago, IL USA
文摘AIM:To investigate the mechanism of liver regeneration induced by fusing the omentum to a small traumatic injury created in the liver. We studied three groups of rats. In one group the rats were omentectomized; in another group the omentum was left in situ and was not activated,and in the third group the omentum was activated by polydextran particles. METHODS:We pre-activated the omentum by injecting polydextran particles and then made a small wedge wound in the rat liver to allow the omentum to fuse to the wound. We monitored the regeneration of the liver by determining the ratio of liver weight/body weight,by histological evaluation (including immune staining for cytokeratin-19,an oval cell marker),and by testing for developmental gene activation using reverse transcription polymerase chain reaction (RT-PCR). RESULTS:There was no liver regeneration in the omentectomized rats,nor was there significant regeneration when the omentum was not activated,even though in this instance the omentum had fusedwith the liver. In contrast,the liver in the rats with the activated omentum expanded to a size 50% greater than the original,and there was histologically an interlying tissue between the wounded liver and the activated omentum in which bile ducts,containing cytokeratin-19 positive oval cells,extended from the wound edge. In this interlying tissue,oval cells were abundant and appeared to proliferate to form new liver tissue. In rats pre-treated with drugs that inhibited hepatocyte growth,liver proliferation was ongoing,indicating that regeneration of the liver was the result of oval cell expansion. CONCLUSION:Activated omentum facilitates liver regeneration following injury by a mechanism that depends largely on oval cell proliferation.
