Browsing by Subject "Aneurysm"

Now showing 1 - 2 of 2
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    Distribution of type IV collagen, laminin, nidogen and fibronectin in the haemodynamically stressed vascular wall
    (Murcia : F. Hernández, 1990) kittelberger, Reinhold; Davis, Paul F.; Stehbens, William E.
    Changes in the extracellular matrix of haemodynamically stressed blood vessel walls were studied by immunofluorescence histochemistry in venous-pouch aneurysms fashioned on the site of the common carotid artery of nine sheep. Tissues from the thickened walls of the experimental aneurysms were examined from 11 to 98 months post-operatively for changes in the distribution of the basement membrane components type IV coliagen, laminin, nidogen and fibronectin. In the younger aneurysms, there was an increase of the basement membrane components in the thickened area. Very little basement membrane was detected in older aneurysms. Diffuse staining for fibronectin was noted in aneurysms of al1 ages. Thick deposits of basement membrane material were observed in calcified tissues. The changes in the matrix próteins were similar to alterations occurring dunng the development of atherosclerosis in human vascular tissue.
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    Lysyl oxidases in mammalian development and certain pathological conditions
    (Murcia : F. Hernández, 2009) Mäki, Joni M.
    Lysyl oxidase (LOX) catalyzes the oxidation of the side chain of a peptidyl lysine converting specific lysine and hydroxylysine residues of a–aminoadipic-d- semialdehydes, which form covalent crosslinks in collagens and elastin. Five different but closely related lysyl oxidase isoenzymes have been identified to date, and they seem to have overlapping functions in many tissues. Modification of the extracellular matrix by lysyl oxidases has been shown to be a critical contributor to the development of various organs and certain pathological conditions.