检索结果-南通市图书馆

AN ENZYMOCYTOCHEMICAL STUDY OF ALKALINE PHOSPHATASE ISOENZYMES IN GASTRIC CANCER-LIGHT AND electron MICROSCOPIC OBSERVATIONS

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Cancer Research 1995年第2期7卷 141-147页

作者：苏英豪杨光霖董聿明张红吴继锋王道斌 Department of Pathology Anhui Medical University Hefei

By using light and electron microscopic cytochemical technique, the activities and distributions of AP isoenzymes in gastric cancers and benign gastric diseases were *** results showed: Nagao, Regan and Kasahara isoenzymes, which were not expressed in normal gastric mucosae and non-malignant lesions, might be considered as tumor markers of gastric cancer;The epithelium of intestinal metaplasia exhibited intestinal-type AP only,which was one of the markers of well-differentiated intestinal *** the view-point of the gene expression of AP isoenzymes, two mutation hypothesis and recessive-gene mutation hypothesis might be fit for gastric cancer.

关键词： Alkaline phospbatase isoenzymes Gastric cancer Cytochemistry Light microscopy electron microscopy.

维普期刊数据库

PRIMARY NEUROENDOCRINE TUMORS OF THE LIVER AND GALLBLADDER

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Cancer Research 1996年第3期8卷 61-64页

作者：虞积耀胡明姚林

To study Clinico-pathological characters of the neuroendocrine tumors of the liver and *** histology, immunohistochemistry and electron microscope, 3 cases of liver and gallbladder were investigated. The primary antibodies including anti-chromogranin A, gastrin, serotonin, insulin, somatostatin, gastrin, pancreatic polypeptide, adreno- corticotropic hormone (ACTH), calcitonin, bombesin, β-human chorionic gonadotropin (β-HCG) were employed to identify the property of *** one cases tumor of neuroendocrine carcinoma. In the other two cases tumor were typical carcinoid. In immunohistochemistry study, the tumor cells showed positive reaction to chromagranin A and contained positive cells of gastrin, serotonin, insulin and pancreatic polypaptide. electronmicroscopy.showed the cytoplasm contained dense round *** Nuroendocrine tumor of liver and gallbladder is a special type neoplasm with character of histology, immunohistochemistry and electron microscopy. Subject headings neuroendocrine tumor gallbladder liver immunohistochemistry and electron microscopy.

关键词： Neuroendocrine tumor Gallbladder Liver Immunohistochemistry electron microscopy.

维普期刊数据库

在线全文

学校读者我要写书评

暂无评论

金黄滴虫叶绿体拟核的荧光镜检及电镜观察

Current Zoology 1986年第4期32卷 301-305+385页

作者：朱桦项欣李荫蓁陈阅增北京大学生物学系

金黄滴虫细胞在用DNA特异的荧光染料DAPI处理后,在荧光显微镜下细胞核和叶绿体拟核均散发蓝色荧光,穗晰可见。每一叶绿体有一拟核,拟核沿叶绿体的周缘排列,形状相当于叶绿体的轮廓,成不规则的两叶形环。环的全长约在20—30υm之间。拟... 详细信息

金黄滴虫细胞在用DNA特异的荧光染料DAPI处理后,在荧光显微镜下细胞核和叶绿体拟核均散发蓝色荧光,穗晰可见。每一叶绿体有一拟核,拟核沿叶绿体的周缘排列,形状相当于叶绿体的轮廓,成不规则的两叶形环。环的全长约在20—30υm之间。拟核环大多是单线的,有些拟核环出现或短或长的双线部分,有时甚至几乎整个拟核环都可变为双线。这表明拟核环通过“纵裂”而形成双环,在叶绿体分裂时,分别进入两个子叶绿体。这一情况在电镜照片上得到了证实。叶绿体分裂和细胞分裂之间似乎不存在严格的相关性,这是导致细胞中叶绿体数目多于1个的原因。

关键词： Ochromonas Chloroplast nucleoid DAPI electron microscopy.

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

应用分析电子显微镜考察铂锡催化剂上的积炭

分析测试通报 1988年第5期 45-49页

作者：臧璟龄蔡海林吴金荣卢鸿修北京钢铁研究院中国科学院大连化学物理研究所

在高分散铂锡催化剂上分别以正丁烷,正己烷及长链烷烃为反应物经催化剂脱氢表面积炭。从电子显微镜图像观察到积炭有多种结构,最小的炭粒呈条纹排列,炭粒集聚形成球状炭黑及不同形状的石墨结晶。选区电子衍射分析炭(002)晶面间距有3.35... 详细信息

在高分散铂锡催化剂上分别以正丁烷,正己烷及长链烷烃为反应物经催化剂脱氢表面积炭。从电子显微镜图像观察到积炭有多种结构,最小的炭粒呈条纹排列,炭粒集聚形成球状炭黑及不同形状的石墨结晶。选区电子衍射分析炭(002)晶面间距有3.35～4.13A变化表明石墨化程度不同。三种积炭样品的电子能量损失谱相应地亦展示明显的差别。

关键词： Catalyet carbon electron microscopy.