Results 161 to 170 of about 11,210 (212)
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Extracellular microfibrils in development and disease
Cellular and Molecular Life Sciences, 2007Fibrillins are the structural components of extracellular microfibrils that impart physical properties to tissues, alone or together with elastin as elastic fibers. Genetic studies in mice have revealed that fibrillin-rich microfibrils are also involved in regulating developmental programs and homeostatic processes through the modulation of TGF-beta ...
F, Ramirez +3 more
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Exploring the Nature of Cellulose Microfibrils
Biomacromolecules, 2015Ultrathin cellulose microfibril fractions were extracted from spruce wood powder using combined delignification, TEMPO-catalyzed oxidation, and sonication processes. Small-angle X-ray scattering of these microfibril fractions in a "dilute" aqueous suspension (concentration 0.077 wt %) revealed that their shape was in the form of nanostrip with 4 nm ...
Ying, Su +4 more
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Comparison of Rhapidosomes and Asbestos Microfibrils
Science, 1978Rhapidosomes (cylindrical nucleoprotein rods of bacterial origin) show great structural similarity to the microfibrils of chrysotile asbestos when negatively stained and observed with the electron microscope. If the negative stain is omitted, the asbestos retains its structural detail whereas the rhapidosomes appear to be unstructured bodies.
W G, Hutchison, R I, Harker, M M, Allen
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Comptes rendus de l'Academie des sciences. Serie III, Sciences de la vie, 1996
We report the results of an immunogold electron microscopical analysis on microfibrils from the arterial subendothelium showing that thrombospondin (TSP) is present on 40 nm-diameter structures joining 8-10 nm-diameter microfibrils containing fibrillin. They differ from type VI collagen which forms 3-5 nm-diameter microfibrils.
F, Fauvel-Lafève +4 more
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We report the results of an immunogold electron microscopical analysis on microfibrils from the arterial subendothelium showing that thrombospondin (TSP) is present on 40 nm-diameter structures joining 8-10 nm-diameter microfibrils containing fibrillin. They differ from type VI collagen which forms 3-5 nm-diameter microfibrils.
F, Fauvel-Lafève +4 more
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Possible Roles of Microfibrils in Elastogenesis
Connective Tissue Research, 1981On examination in the electron microscope elastic tissue is seen to consist of an amorphous component surrounded by microfibrillar components. The exact relationship between these components is unknown, although during development the microfibrils appear before the amorphous material.
E G, Cleary, J C, Fanning, I, Prosser
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Analytical Biochemistry, 1998
A method is described for the purification of collagen VI microfibrils and fibrillin-containing microfibrils, respectively. High M(r) microfibril-rich preparations isolated from nuchal ligament by bacterial collagenase digestion and size fractionation were purified by CsCl density gradient centrifugation.
C M, Kielty +2 more
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A method is described for the purification of collagen VI microfibrils and fibrillin-containing microfibrils, respectively. High M(r) microfibril-rich preparations isolated from nuchal ligament by bacterial collagenase digestion and size fractionation were purified by CsCl density gradient centrifugation.
C M, Kielty +2 more
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The substructure of α-keratin microfibrils
Journal of Ultrastructure Research, 1970The effect of underfocusing on the fine detail observed in the cross section of α -keratin microfibrils is discussed. It is shown that the apparent subdivision of the microfibrils into protofibrillar elements is coincidental with an underfocused granular phase image of similar dimensions and cannot, therefore, be accepted as a genuine structural ...
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The Supramolecular Organization of Collagen VI Microfibrils
Journal of Molecular Biology, 2003Collagen VI has a ubiquitous distribution throughout connective tissues, and has key roles in linking cells and matrix macromolecules. We have generated three-dimensional reconstructions of collagen VI microfibrils using automated electron tomography (AET) in order to obtain new insights into the organisation of collagen VI in assembled microfibrils ...
Baldock, Clair +3 more
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Journal of Cell Science, 1994
ABSTRACT In the developing aorta, endothelial cell connecting filaments extend from the abluminal surface of the endothelial cell to the subjacent elastic lamina. The connecting filaments are in alignment with intracellular stress fibers and are oriented parallel to the direction of blood flow.
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ABSTRACT In the developing aorta, endothelial cell connecting filaments extend from the abluminal surface of the endothelial cell to the subjacent elastic lamina. The connecting filaments are in alignment with intracellular stress fibers and are oriented parallel to the direction of blood flow.
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Microfibrils from the Arterial Subendothelium
1999Microfibrillar structures of the subendothelium are represented by either type VI collagen or elastin-associated microfibrils which are also referred to as fibrillin-containing microfibrils. These structures are present throughout the subendothelium irrespective of the presence of elastin.
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