نتایج جستجو برای: collagen type i
تعداد نتایج: 2253406 فیلتر نتایج به سال:
Bovine corneal endothelial cells in culture synthesize predominantly type III collagen, unlike rabbit corneal endothelial cultures which synthesize type IV collagen. In an attempt to document whether this type III collagen synthesis by bovine cells is a tissue culture-specific phenomenon, collagens synthesized by organ culture of bovine Descemet's membrane/corneal endothelium complex were compa...
osteogenesis imperfecta (oi) as an inherited connective tissue disorder can affect all tissues that contains type i collagen. well-known cardiac complications of this disease such as aortic root dilatation, aortic regurgitation and mitral valve prolapse have been rarely reported in the literature. coronary artery aneurysm is a rare cardiac complication in oi, as reported in a 19 year old female...
BACKGROUND AND OBJECTIVE Our previous histological studies indicated that near-infrared (NIR) irradiation stimulates collagen proliferation in rat and human skin for 3 months. High collagen density in the dermis and smoothing of the epidermis were observed in irradiated rat skin, and appeared to last up to 6 months. Epidermal smoothness in irradiated rat skin seems to resemble scarring. Here, w...
abstract basement membrane of glomerular mesangium (bmg) is a thin membrane which helps to support the capillary loops in a renal glomerulus and type iv collagen is require for complete bm formation during glomerulogenesis. in this investigation specific antibody of type iv collagen has been used in light microscopy to study development of bmg of the embryonic and postnatal mouse glomerular mes...
Synthesis of collagen types I, II, III, and IV in cells from the embryonic chick cornea was studied using specific antibodies and immunofluorescence. Synthesis of radioactively labeled collagen types I and III was followed by fluorographic detection of cyanogen bromide peptides on polyacrylamide slab gels and by carboxymethylcellulose chromatography followed by disc gel electrophoresis. Type II...
A synthetic peptide-1, an 18 amino acid residue peptide derived from a hydrophilic domain of a cloned platelet type I collagen receptor, was used to study the role of the receptor on types I and III collagen-induced platelet aggregation and the release of ATP. The peptide inhibits the type I, but not the type III, collagen-induced platelet aggregation and the release of ATP in a dose-dependent ...
OBJECTIVE Biochemical analysis indicates the presence of collagen type I in fibrocartilaginous tissue of osteoarthritic cartilage, whereas normal hyaline cartilage contains only collagen type II produced by normal chondrocytes. Fibrocartilaginous tissue of late-stage osteoarthritis also exhibits irregularly shaped type 2b secretory chondrocytes as described in the literature. We have attempted ...
Mov13 fibroblasts, which do not express endogenous alpha 1(I) collagen chains due to a retroviral insertion, were used to study the role of type I collagen in the process of fibronectin fibrillogenesis. While Mov13 cells produced a sparse matrix containing short fibronectin fibrils, transfection with a wild type pro alpha 1(I) collagen gene resulted in the production of an extensive matrix cont...
OBJECTIVE Type VIII collagen is upregulated after vascular injury and in atherosclerosis. However, the role of type VIII collagen endogenously expressed by smooth muscle cells (SMCs) and in the context of the vascular matrix microenvironment, which is rich in type I collagen, is not known. To address this, we have compared aortic SMCs from wild-type (WT) mice to SMCs from type VIII collagen-def...
BACKGROUND The objectives of the present study were to compare changes in muscle excursion, total collagen, and collagen subtypes after tenotomy over time and after delayed tendon repair. METHODS Tenotomy on the extensor digitorum tendon of the right second toes of 48 New Zealand White rabbits was performed; toes on the left leg were used as controls. Passive muscle excursion, total collagen ...
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