Microscopic structural study of collagen aging in isolated fibrils using polarized second harmonic generation

被引：40

作者：

Ait-Belkacem, Dora ^{[1
]}

Guilbert, Marie ^{[2
]}

Roche, Muriel ^{[1
]}

Duboisset, Julien ^{[1
]}

Ferrand, Patrick ^{[1
]}

Sockalingum, Ganesh ^{[2
]}

Jeannesson, Pierre ^{[2
]}

Brasselet, Sophie ^{[1
]}

机构：

[1] Aix Marseille Univ, Inst Fresnel, Ecole Cent, CNRS,UMR 7249, F-13013 Marseille, France

[2] Univ Reims, MeDIAN, FRE CNRS URCA 3481, UFR Pharm, F-51096 Reims, France

来源：

JOURNAL OF BIOMEDICAL OPTICS | 2012年 / 17卷 / 08期

关键词：

aging; collagen fibrils; microscopy; molecular order; polarization; second-harmonic generation; GLYCATION;

D O I：

10.1117/1.JBO.17.8.080506

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Polarization resolved second harmonic generation (PSHG) is developed to study, at the microscopic scale, the impact of aging on the structure of type I collagen fibrils in two-dimensional coatings. A ribose-glycated collagen is also used to mimic tissue glycation usually described as an indicator of aging. PSHG images are analyzed using a generic approach of the molecular disorder information in collagen fibrils, revealing significant changes upon aging, with a direct correlation between molecular disorder and fibril diameters. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.JBO.17.8.080506]

引用

页数：3

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