Anatomia最新文献_第9页

Announcement of the Zietzschmann‐Preuss award 宣布Zietzschmann - Preuss奖

Anatomia Pub Date : 2019-03-01 DOI: 10.1111/ahe.12419

引用次数: 0

OTTO ZIETZSCHMANN PRIZE for the Promotion of Research in Veterinary Embryology – donated by Zietzschmann’s Pupil Fritz Preuß– OTTO ZIETZSCHMANN兽医胚胎学促进研究奖-由ZIETZSCHMANN的学生Fritz Preuß捐赠

Anatomia Pub Date : 2008-04-01 DOI: 10.1111/j.1439-0264.2008.00851.x

F. Preuss

引用次数: 0

Fritz Preuß: Veterinäranatom und Evolutionstheoretiker

Anatomia Pub Date : 2007-02-01 DOI: 10.1111/J.1439-0264.2006.00754.X

B. Vollmerhaus, C. Neumüller

引用次数: 1

Immunohistochemical Demonstration of Leu‐7 (HNK‐1), Neurone‐Specific Enolase (NSE) and Protein‐Gene Peptide (PGP) 9.5 in the Developing Camel (Camelus dromedarius) Heart 发育中的骆驼心脏中Leu‐7 (HNK‐1)、神经元特异性烯醇化酶(NSE)和蛋白基因肽(PGP) 9.5的免疫组化证明

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00343.x

A. E. El Sharaby, M. Egerbacher, A. Hammoda, P. Böck

{"title":"Immunohistochemical Demonstration of Leu‐7 (HNK‐1), Neurone‐Specific Enolase (NSE) and Protein‐Gene Peptide (PGP) 9.5 in the Developing Camel (Camelus dromedarius) Heart","authors":"A. E. El Sharaby, M. Egerbacher, A. Hammoda, P. Böck","doi":"10.1046/j.1439-0264.2001.00343.x","DOIUrl":"https://doi.org/10.1046/j.1439-0264.2001.00343.x","url":null,"abstract":"The development of the heart‐conducting system has been controversially discussed. The common opinion that these specialized myocytes originate from mesodermal precursors has been challenged when nerve‐specific antigens (Leu‐7, NF, G1N2) were demonstrated in embryonic hearts of various species, suggesting a neural crest contribution to the embryonic conducting tissue. Anti‐Leu‐7 (HNK‐1) antibodies were reported to reliably mark the conducting system in developing rat, chicken and human hearts. The present investigation was carried out on the hearts of 15 camel fetuses at 35, 45, 60, 75 and 100 cm crown‐rump length (three specimens for each stage), in addition to three adult hearts. We investigated the antigenicity of cardiac structures for Leu‐7, NSE (Neurone specific Enolase) and PGP (Protein Gene Peptide) 9.5. In all specimens investigated, both NSE and PGP 9.5 were expressed by cardiac nerves and conducting system components. The sinuatrial and atrioventricular nodes, the atrioventricular bundle as well as subendocardial and intramyocardial Purkinje fibers were stained. In contrast, the developing conducting system did not react with anti‐Leu‐7 antibody, although Leu‐7 antigenicity was strongly expressed by the developing cardiac nerves. In adult camel hearts, the same pattern of immunoreactivity for the markers studied was still retained. Our results show that the expression of marker proteins for the developing conducting system is species‐specific. Therefore, these markers are of little significance in discussions on the possible neurogenic nature of the heart conducting tissue.","PeriodicalId":7888,"journal":{"name":"Anatomia","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81526540","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: 13

Immunohistochemical Localization of Inhibin Subunits in the Testis of the Bull 抑制素亚基在公牛睾丸中的免疫组织化学定位

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00350.x

S. Matsuzaki, M. B. C. Cruzana, T. Budipitojo, E. Hondo, G. Watanabe, K. Taya, M. Sasaki, N. Kitamura, J. Yamada

引用次数: 7

Lipolysis and Ultrastructural Changes of Intracellular Lipid Vesicles after Cooling of Bovine and Porcine GV‐oocytes 牛和猪GV卵母细胞冷却后细胞内脂质囊泡的脂解和超微结构变化

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00339.x

V. Isachenko, E. Isachenko, H. Michelmann, J. Alabart, I. Vázquez, N. Bezugly, F. Nawroth

{"title":"Lipolysis and Ultrastructural Changes of Intracellular Lipid Vesicles after Cooling of Bovine and Porcine GV‐oocytes","authors":"V. Isachenko, E. Isachenko, H. Michelmann, J. Alabart, I. Vázquez, N. Bezugly, F. Nawroth","doi":"10.1046/j.1439-0264.2001.00339.x","DOIUrl":"https://doi.org/10.1046/j.1439-0264.2001.00339.x","url":null,"abstract":"The aim of our investigation was to compare the ultrastructure of lipid droplets, and the effect of cooling on intracellular lipid vesicles of bovine and porcine GV oocytes. The lipid droplets in bovine GV oocytes have a homogeneous structure. The utilization of lipids takes place directly from these vesicles without formation of interim lipid compounds. In contrast, there are two kinds of lipid droplets in porcine GV oocytes: ‘dark’, homogeneous vesicles next to ‘grey’ vesicles with electron‐lucent streaks. Vesicles of each specific group are connected to each other. After a 12‐h culture, the formation of the cisternal smooth endoplasmic reticulum layer was always associated with ‘grey’ lipid vesicles. This is evidence that during oogenesis lipolysis takes place only in ‘grey’ vesicles. It is supposed that cytoplasmic lipolysis has two stages: ‘dark’ vesicles change into a ‘grey’ form followed by a utilization of these ‘grey’ lipids. Furthermore, both types of lipid droplets in porcine oocytes changed morphologically during cooling: they changed into a spherical form with lucent streaks. Lipid droplets in bovine GV oocytes revealed no visible morphological changes after cooling.","PeriodicalId":7888,"journal":{"name":"Anatomia","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79241729","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: 52

Structural and Ultrastructural Characteristics of Interrenal Gland and Chromaffin Cell of Matrinxã, Brycon cephalus Gunther 1869 (Teleostei‐Characidae) Matrinxã， Brycon cephalus Gunther 1869 (Teleostei‐characters)肾间腺和嗜铬细胞的结构和超微结构特征

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00347.x

R. Rocha, H. S. Leme‐Dos Santos, C. A. Vicentini, C. da Cruz

{"title":"Structural and Ultrastructural Characteristics of Interrenal Gland and Chromaffin Cell of Matrinxã, Brycon cephalus Gunther 1869 (Teleostei‐Characidae)","authors":"R. Rocha, H. S. Leme‐Dos Santos, C. A. Vicentini, C. da Cruz","doi":"10.1046/j.1439-0264.2001.00347.x","DOIUrl":"https://doi.org/10.1046/j.1439-0264.2001.00347.x","url":null,"abstract":"This work presents the structure and ultrastructure of the interrenal gland and chromaffin cells, as well as the morphology of the head kidney of Brycon cephalus. The head kidney is composed of fused bilateral lobes located anterior to the swim bladder and ventrolateral to the spinal column. The parenchyma revealed lympho‐haematopoietic tissue, melano‐macrophage centres, interrenal gland and chromaffin cells. The interrenal gland consisted of cords or strands of cells grouped around the posterior cardinal vein and their branches. Chromaffin cells are found in small groups, closely associated with the interrenal gland and/or under the endothelium of the posterior cardinal vein. So far, the ultrastructural analysis has revealed only one interrenal cell type which contained abundant smooth endoplasmic reticulum and numerous mitochondria with tubulo‐vesicular cristae, characteristic of steroid‐producing cells. Two types of chromaffin cells were observed. The first type was characterized by the presence of vesicles with round, strongly electron‐dense granules, which were eccentrically located. Such cells were interpreted as noradrenaline cells. Meanwhile, cells which contained smaller vesicles and electron‐lucent granules, with a small halo separating the granule from the vesicular limiting membrane, were identified as adrenaline cells.","PeriodicalId":7888,"journal":{"name":"Anatomia","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80644875","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: 21

Lingual Ultrastructure of the Long‐Finned Pilot Whale (Globicephala melas) 长鳍领航鲸舌部超微结构的研究

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00352.x

D. Pfeiffer, A. Wang, J. Nicolás, C. J. Pfeiffer

{"title":"Lingual Ultrastructure of the Long‐Finned Pilot Whale (Globicephala melas)","authors":"D. Pfeiffer, A. Wang, J. Nicolás, C. J. Pfeiffer","doi":"10.1046/j.1439-0264.2001.00352.x","DOIUrl":"https://doi.org/10.1046/j.1439-0264.2001.00352.x","url":null,"abstract":"Microscopic studies on the cetacean tongue are limited and, to date, only a few ultrastructural reports on dolphins have been published. This report presents the initial description of the lingual ultrastructure of the long‐finned pilot whale. The lingual integumental surface was smooth, lacking papillae, although flaking of outer stratum corneum cells could be observed at high resolution. The keratinocytes of the stratum spinosum of the epidermis resembled those of cetacean skin on other regions of the body. The similarities included the presence of cytoplasmic lipid droplets around the nuclei of stratum spinosum cells, a lingual feature not seen in terrestrial mammals. Keratin intermediate filaments were numerous and occasionally formed aggregates of circular whorls. At cell surfaces, bundles of keratin intermediate filaments were frequently observed inserting into desmosomal plaques. Pigment granules were not evident and organelles were sparse. Stratum corneal cells contained nuclear remnants (parakeratosis) and small multivesicular bodies, and the corneal layer was approximately 18 cells thick. The nuclei of the stratum basale keratinocytes possessed exceptionally numerous and deep clefts. The dermis was non‐distinctive. The skeletal muscle of the tongue was arranged in widely separated fasiculi containing small numbers of muscle fibres. Typical fine structure of skeletal muscle bands and tubular elements was observed by transmission electron microscopy.","PeriodicalId":7888,"journal":{"name":"Anatomia","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2001-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81459569","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: 22

An Explanation of a Groove found on the Nasal Process of the Equine Incisive Bone 对马尖锐骨鼻突上发现的凹槽的解释

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00348.x

W. Pérez, E. Martin

引用次数: 3

Ultrastructural Features in the Epididymis of the Dog (Canis familiaris, L.) 家犬附睾的超微结构特征

Anatomia Pub Date : 2001-12-01 DOI: 10.1046/j.1439-0264.2001.00338.x

Bruno Cesar Chimming, Carlos Alberta Vicentini

引用次数: 25