Evidence for collagen molecular orientation in basement membranes |
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| Authors: | L C U Junqueira G S Montes O M S Toledo S R R Bexiga M A Gordilho and R R Brentani |
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| Institution: | (1) Laboratories for Cell Biology and Experimental Oncology, University of São Paulo School of Medicine, Av. Dr. Arnaldo 455, 01246 São Paulo, Brazil |
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| Abstract: | Summary The following basement membranes (BMs) from representative species of the main vertebrate classes were studied by the Picrosirius-polarization method: lens capsule, Reichert's membrane and glomerular BMs. A distinct birefringence was consistently observed in all BMs from all species studied by this method. The results reported provide a strong evidence for collagen macromolecular orientation in BMs. Heparitin sulphate was the only glycosaminoglycan detected in dog lens capsules. |
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