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. 2017 May 20;21(4):244–250. doi: 10.1016/j.bjpt.2017.05.001

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© 2017 Published by Elsevier Editora Ltda. on behalf of Associac¸˜ao Brasileira de Pesquisa e P´os-Graduac¸˜ao em Fisioterapia.

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Picrosirius red-stained aorta cross-sections of the CG (A) and TG (B) rats viewed under polarized light to show the collagen fibers. The number of collagen fibers in A seems to be greater than in B. High-power electron micrographs of transverse sectioned collagen fibers from the aorta wall of the CG (C) and TG (D) groups of rats. The electron micrographs are viewed with the same magnification showing collagen fibrils of large (thick arrows) and short diameter (thin arrows). The number of large fibers seems to be greater in the TG than in the CG. (E and F) Histograms showing the distribution of collagen fibril diameter in CG and TG aortas, respectively.