Results 261 to 270 of about 135,815 (306)
Some of the next articles are maybe not open access.
Archives of Ophthalmology, 1969
Xanthelasma from both upper eyelids of a patient were examined by electron microscopy. The cytoplasm of the foam cells was filled with lipid droplets that were not bounded by a membrane. The lipid itself dissolved out during tissue preparation despite osmium or glutaraldehyde-osmium fixation, indicating that the lipid is highly unsaturated.
openaire +2 more sources
Xanthelasma from both upper eyelids of a patient were examined by electron microscopy. The cytoplasm of the foam cells was filled with lipid droplets that were not bounded by a membrane. The lipid itself dissolved out during tissue preparation despite osmium or glutaraldehyde-osmium fixation, indicating that the lipid is highly unsaturated.
openaire +2 more sources
Ultrastructure of Oligodendrogliomas
1981The study of 18 oligodendrogliomas shows a number of characteristics which indicate a common hypothelial stem cell. The main cytologic characteristics are: a) high number of mitochondria, frequently atypical; b) polygonal crystalline structures in the cytoplasm in most of the tumors studied, and c) cytoplasmic microtubuli. None of these characteristics
J, Cervós-Navarro, N, Pehlivan
openaire +2 more sources
Ciba Foundation symposium, 1995
Almost all structural studies on elastin have been done in higher vertebrates, in which it is organized as an extracellular network of branched fibres which vary from fractions f microns to several microns in diameter. By conventional electron microscopy, elastin appears amorphous.
Ronchetti IP. +3 more
openaire +2 more sources
Almost all structural studies on elastin have been done in higher vertebrates, in which it is organized as an extracellular network of branched fibres which vary from fractions f microns to several microns in diameter. By conventional electron microscopy, elastin appears amorphous.
Ronchetti IP. +3 more
openaire +2 more sources
The ultrastructure of mitochondria
Proceedings of the Royal Society of London. Series B. Biological Sciences, 1969Abstract The study, in thin sections, of the specific morphology of mitochondria in different plant and animal cells has confirmed the view that, in spite of a wide polymorphism in gross structure, the organelle is nevertheless built according to the same fundamental pattern, which was first described by Palade (1953) and by Sjöstrand
openaire +2 more sources
Archives of Neurology, 1975
The fine structure of five cerebral aneurysms, four early aneurysmal changes, and three arteriovenous aneurysms (two cerebral and one spinal) were investigated from surgical and autopsy specimens. Each lesion was characterized by thickening, lamination, redundancy, and separation of basement membranes, abundant cellular debris, and a paucity or absence
openaire +2 more sources
The fine structure of five cerebral aneurysms, four early aneurysmal changes, and three arteriovenous aneurysms (two cerebral and one spinal) were investigated from surgical and autopsy specimens. Each lesion was characterized by thickening, lamination, redundancy, and separation of basement membranes, abundant cellular debris, and a paucity or absence
openaire +2 more sources
The Ultrastructure of Statoconia
Acta Oto-Laryngologica, 1955(1955). The Ultrastructure of Statoconia. Acta Oto-Laryngologica: Vol. 45, No. 1, pp. 14-18.
D, CARLSTROM, H, ENGSTROM
openaire +2 more sources
2018
Mammalian hair fibres can be structurally divided into three main components: a cuticle, cortex and sometimes a medulla. The cuticle consists of a thin layer of overlapping cells on the surface of the fibre, constituting around 10% of the total fibre weight. The cortex makes up the remaining 86-90% and is made up of axially aligned spindle-shaped cells
Jeffrey E, Plowman, Duane P, Harland
openaire +2 more sources
Mammalian hair fibres can be structurally divided into three main components: a cuticle, cortex and sometimes a medulla. The cuticle consists of a thin layer of overlapping cells on the surface of the fibre, constituting around 10% of the total fibre weight. The cortex makes up the remaining 86-90% and is made up of axially aligned spindle-shaped cells
Jeffrey E, Plowman, Duane P, Harland
openaire +2 more sources
Ultrastructure of dermatofibroma
Archiv f�r Dermatologische Forschung, 1973Eight dermatofibromas were studied by electron microscopy. The essential cell was the fibroblast, characterized by a well developed rough endoplasmic reticulum (RER), a distinct Golgi zone and large numbers of cytofilaments. The fibroblast of the dermatofibroma was engaged in collagen production and fat storage.
B, Mihatsch-Konz +2 more
openaire +2 more sources
Ultrastructure of a “Pineocytoma”
Journal of Neuropathology & Experimental Neurology, 1975The commonest pineal gland tumor, the germinoma, is more apparently related to germ cells than to pineal cells. Although ultrastructural studies of this tumor have confirmed this similarity, comparable characterization of a pineocytoma has not been reported, due to its rarity.
S L, Nielsen, C B, Wilson
openaire +2 more sources
The ultrastructure of chloroplasts
Experimental Cell Research, 19551. 1. On ultrathin sections of chloroplasts from Aspidistra elatior the electron microscopic study has revealed that the grana consist of layered columns. 2. 2. The grana are organized in double membrane discs the two membranes of which are about 65 A thick. These membranes bound a narrow, closed space the height of which also is about 65 A. The
E, STEINMANN, F S, SJOSTRAND
openaire +2 more sources