Structural Organization Of Collagen Fibers In Chordae Tendineae As Assessed By Optical Anisotropic Properties And Fast Fourier Transform.

dc.creatorVidal, Benedicto de Campos
dc.creatorMello, Maria Luiza S
dc.date2009-Aug
dc.date2015-11-27T13:15:13Z
dc.date2015-11-27T13:15:13Z
dc.date.accessioned2018-03-29T01:08:49Z
dc.date.available2018-03-29T01:08:49Z
dc.identifierJournal Of Structural Biology. v. 167, n. 2, p. 166-75, 2009-Aug.
dc.identifier1095-8657
dc.identifier10.1016/j.jsb.2009.05.004
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/19460441
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198317
dc.identifier19460441
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1298550
dc.descriptionThe structural and supraorganizational arrangement of the chordae tendineae components is very important for a better understanding of their morphophysiological relationships. This study aims to evaluate the degree of statistical variability of the distribution and orientation of collagen fibers and their undulations (crimps), in porcine chordae tendineae. Polarization microscopy, in association with image analysis, was used for the analysis of birefringent images and detection of surface plots, Fast Fourier transforms, and form birefringence curve profiles. A marked variability in the collagen fiber's twisted and intertwined orientation was found not only along the long axis of the chordae tendineae but also in their 3-D structure, including that of the crimp structures. Crimp was demonstrated to not represent a homogeneous distribution of bands; the best methods to quantify its variability were the Fast Fourier transform and the line profile extended along the long axis of the chordae tendineae. Collagen fiber rings, considered to possibly protecting the integrity of the chordae tendineae, were observed to wrap around them. A statistically helical structure is assumed for the supraorganization of the collagen fibers in the chordae tendineae, which is suggested here to be a chiral body.
dc.description167
dc.description166-75
dc.languageeng
dc.relationJournal Of Structural Biology
dc.relationJ. Struct. Biol.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectAnisotropy
dc.subjectChordae Tendineae
dc.subjectCollagen
dc.subjectFourier Analysis
dc.subjectImage Processing, Computer-assisted
dc.subjectMicroscopy, Polarization
dc.subjectProtein Conformation
dc.subjectSwine
dc.titleStructural Organization Of Collagen Fibers In Chordae Tendineae As Assessed By Optical Anisotropic Properties And Fast Fourier Transform.
dc.typeArtículos de revistas


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