Zeitschrift fur mikroskopisch-anatomische Forschung最新文献_第5页

The occurrence of the Golgi apparatus in mouse oocytes. Demonstration of thiamine pyrophosphatase activity. 小鼠卵母细胞中高尔基体的发生。硫胺素焦磷酸酶活性的证明。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

M Dvorák, K Gregorcíková, M Sedlácková

{"title":"The occurrence of the Golgi apparatus in mouse oocytes. Demonstration of thiamine pyrophosphatase activity.","authors":"M Dvorák, K Gregorcíková, M Sedlácková","doi":"","DOIUrl":"","url":null,"abstract":"Location of thiamine pyrophosphatase activity as a marker of the Golgi apparatus was studied ultracytochemically in mouse oocytes with germinal vesicle (OGV), oocytes at metaphase I (OMI) and oocytes at metaphase II (OMII), and further in cells of the respective cumulus oophorus serving as comparative objects. TPPase activity in cumulus oophorus cells and in OGV was found exclusively in the Golgi apparatus. In OMI the reaction product of TPPase activity was observed in isolated smooth vesicles, and in only one case in structures identifiable as the Golgi apparatus. In OMII the occurrence of TPPase activity was also recorded in isolated smooth vesicles in cortical cytoplasm and further, exceptionally, in smooth concentrically arranged vesicles or tubules. The TPPase activity was not present in vesicular complexes. The results have shown that after the resumption of meiosis the occurrence of the reaction product of TPPase activity drops abruptly due to the reduction of the Golgi apparatus. Changes affecting the Golgi apparatus after the resumption of meiosis are related to the loss of the nucleus after the germinal vesicle breakdown.","PeriodicalId":75355,"journal":{"name":"Zeitschrift fur mikroskopisch-anatomische Forschung","volume":"104 6","pages":"975-81"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13251725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrastructural study of small granule containing (SGC) cells in the lower mesenteric ganglion in drug treated guinea-pigs. 药物治疗豚鼠肠系膜下神经节含小颗粒细胞的超微结构研究。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

K Kapeller, J Polónyi

引用次数: 0

Ultrastructural aspects of and observations on the permeability of the rat mesentery to colloidal iron. 大鼠肠系膜对胶体铁通透性的超微结构观察。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

B König, C A Ferraz de Carvalho, E A Liberti, A M de Camargo

{"title":"Ultrastructural aspects of and observations on the permeability of the rat mesentery to colloidal iron.","authors":"B König, C A Ferraz de Carvalho, E A Liberti, A M de Camargo","doi":"","DOIUrl":"","url":null,"abstract":"In works already published, it was made clear that many researches were interested in the absorption phenomena, permeability and structure of the visceral mesothelial tissue. Attention was concentrated on the mesentery and observations were made using the application of lanthanum nitrate and osmium-amine. The penetration of lanthanum nitrate is impeded by the basement membrane situated between the connective and mesothelial tissues. The heavy salt moves through and not between the mesothelial cells by passive diffusion. No reaction was observed in general with osmium-amine, with the exception of a few cases. In those instances, the osmium-amine reacted not only in the outer surface of the mesentery, but also penetrated with no visible reaction all the way to the connective tissue where it was detected in the elastic layer. In this paper, the colloidal iron was employed using different techniques, and depositions were detected in the surface of the mesentery, in the mesothelial cells and also in the connective tissue. A final conclusion that the permeability of different layers of tissues is of great variety and has a definite capacity for selectivity is suggested.","PeriodicalId":75355,"journal":{"name":"Zeitschrift fur mikroskopisch-anatomische Forschung","volume":"104 2","pages":"231-40"},"PeriodicalIF":0.0,"publicationDate":"1990-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13371474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Morphology of Schmidt-Lanterman incisures of human shoulder plexus nerves in ontogenesis. 人肩丛神经个体发生过程中Schmidt-Lanterman切口的形态学研究。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

A V Isaev, V M Chuchkov, V N Yarygin

引用次数: 0

Fine structure of camel erythrocytes in relation to its functions. 骆驼红细胞精细结构与功能的关系。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

M S Abdo, A M Ali, P F Prentis

引用次数: 0

[The staining of decalcified histological bone slices with the improved Romanowsky-Giemsa solution]. [改良Romanowsky-Giemsa溶液对脱钙组织学骨片的染色]。

Zeitschrift fur mikroskopisch-anatomische Forschung Pub Date : 1990-01-01

B Drescher