Literature DB >> 8494978

Structural transformation of collagen fibrils in corneal stroma during drying. An x-ray scattering study.

P Fratzl1, A Daxer.   

Abstract

X-ray scattering experiments were performed on human corneas during drying. In a first stage the collagen interfibrillar distance decreased considerably. Then, at a critical point of dehydration, a structural transformation of the collagen fibrils was observed. This finding leads to a two-stage drying model, which explains the discrepancy between the collagen fibril diameters determined by x-ray scattering and by electron microscopy. Our results strongly suggest that the collagen fibrils in the corneal stroma are surrounded by a cylindrical coating made mainly of proteoglycans. The coating appears as a three-dimensional fractal network with fractal dimension of 2.7 +/- 0.1.

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Year:  1993        PMID： 8494978      PMCID： PMC1262438          DOI： 10.1016/S0006-3495(93)81487-5

Source DB:  PubMed          Journal:  Biophys J        ISSN： 0006-3495            Impact factor:   4.033


  15 in total

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Journal:  J Opt Soc Am       Date:  1975-05

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Journal:  J Physiol       Date:  1957-04-30       Impact factor: 5.182

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Authors:  T Goetze; J Brickmann
Journal:  Biophys J       Date:  1992-01       Impact factor: 4.033

4.  Synchrotron x-ray diffraction studies of the cornea, with implications for stromal hydration.

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Journal:  Biophys J       Date:  1991-08       Impact factor: 4.033

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Journal:  J Mol Biol       Date:  1978-02-25       Impact factor: 5.469

6.  Preservation of corneal collagen fibril structure using low-temperature procedures for electron microscopy.

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Journal:  J Ultrastruct Mol Struct Res       Date:  1986 Jul-Sep

Review 7.  Proteoglycan-fibrillar collagen interactions.

Authors:  J E Scott
Journal:  Biochem J       Date:  1988-06-01       Impact factor: 3.857

8.  Collagen packing and mineralization. An x-ray scattering investigation of turkey leg tendon.

Authors:  P Fratzl; N Fratzl-Zelman; K Klaushofer
Journal:  Biophys J       Date:  1993-01       Impact factor: 4.033

9.  Neutron diffraction studies of the corneal stroma.

Authors:  G F Elliott; Z Sayers; P A Timmins
Journal:  J Mol Biol       Date:  1982-03-05       Impact factor: 5.469

10.  Synchrotron x-ray diffraction study of corneal stroma.

Authors:  Z Sayers; M H Koch; S B Whitburn; K M Meek; G F Elliott; A Harmsen
Journal:  J Mol Biol       Date:  1982-10-05       Impact factor: 5.469
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  37 in total

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Authors:  Y Huang; K M Meek
Journal:  Biophys J       Date:  1999-09       Impact factor: 4.033

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Journal:  Respir Physiol Neurobiol       Date:  2008-04-08       Impact factor: 1.931

3.  A synchrotron x-ray diffraction study of developing chick corneas.

Authors:  A J Quantock; S Kinoshita; M S Capel; D J Schanzlin
Journal:  Biophys J       Date:  1998-02       Impact factor: 4.033

4.  A structural model for the in vivo human cornea including collagen-swelling interaction.

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Journal:  J R Soc Interface       Date:  2015-08-06       Impact factor: 4.118

5.  Biomechanical evaluation of cornea in patients with ankylosing spondylitis.

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Journal:  Int Ophthalmol       Date:  2016-10-05       Impact factor: 2.031

Review 6.  Bone mineralization: from tissue to crystal in normal and pathological contexts.

Authors:  Y Bala; D Farlay; G Boivin
Journal:  Osteoporos Int       Date:  2012-12-11       Impact factor: 4.507

7.  Proteoglycans maintain lung stability in an elastase-treated mouse model of emphysema.

Authors:  Ayuko Takahashi; Arnab Majumdar; Harikrishnan Parameswaran; Erzsébet Bartolák-Suki; Béla Suki
Journal:  Am J Respir Cell Mol Biol       Date:  2014-07       Impact factor: 6.914

8.  Characterisation of the neovascularisation process in diabetic retinopathy by means of fractal geometry: diagnostic implications.

Authors:  A Daxer
Journal:  Graefes Arch Clin Exp Ophthalmol       Date:  1993-12       Impact factor: 3.117

Review 9.  A healthy dose of chaos: Using fractal frameworks for engineering higher-fidelity biomedical systems.

Authors:  Anastasia Korolj; Hau-Tieng Wu; Milica Radisic
Journal:  Biomaterials       Date:  2019-07-15       Impact factor: 12.479

10.  Interfibrillar packing of bovine cornea by table-top and synchrotron scanning SAXS microscopy.

Authors:  T Sibillano; L De Caro; F Scattarella; G Scarcelli; D Siliqi; D Altamura; M Liebi; M Ladisa; O Bunk; C Giannini
Journal:  J Appl Crystallogr       Date:  2016-07-14       Impact factor: 3.304
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