Structural organization of collagen fibers in chordae tendineae as assessed by optical anisotropic properties and Fast Fourier transform

dc.creatorVidal, BD
dc.creatorMello, MLS
dc.date2009
dc.dateAUG
dc.date2014-11-19T16:11:17Z
dc.date2015-11-26T16:28:29Z
dc.date2014-11-19T16:11:17Z
dc.date2015-11-26T16:28:29Z
dc.date.accessioned2018-03-28T23:09:29Z
dc.date.available2018-03-28T23:09:29Z
dc.identifierJournal Of Structural Biology. Academic Press Inc Elsevier Science, v. 167, n. 2, n. 166, n. 175, 2009.
dc.identifier1047-8477
dc.identifierWOS:000268196300009
dc.identifier10.1016/j.jsb.2009.05.004
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/75478
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/75478
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/75478
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1269475
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
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. (C) 2009 Elsevier Inc. All rights reserved.
dc.description167
dc.description2
dc.description166
dc.description175
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFAPESP [2003/04597-0, 2007/0582518]
dc.languageen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherSan Diego
dc.publisherEUA
dc.relationJournal Of Structural Biology
dc.relationJ. Struct. Biol.
dc.rightsfechado
dc.rightshttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.sourceWeb of Science
dc.subjectChordae tendineae
dc.subjectCollagen fibers
dc.subjectCrimp
dc.subjectOptical anisotropy
dc.subjectBirefringence
dc.subjectFFT
dc.subjectRat-tail Tendon
dc.subjectForm-birefringence
dc.subjectMacromolecular Orientation
dc.subjectPiezoelectric Properties
dc.subject2nd-harmonic Signal
dc.subjectProteoglycans
dc.subjectFibrils
dc.subjectModel
dc.subjectCartilage
dc.subjectBundles
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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