The biomechanics of amnion rupture: an X-ray diffraction study.

Autor: Che J Connon, Takahiro Nakamura, Andy Hopkinson, Andrew Quantock, Naoto Yagi, James Doutch, Keith M Meek
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: PLoS ONE, Vol 2, Iss 11, p e1147 (2007)
Druh dokumentu: article
ISSN: 1932-6203
DOI: 10.1371/journal.pone.0001147
Popis: Pre-term birth is the leading cause of perinatal and neonatal mortality, 40% of which are attributed to the pre-term premature rupture of amnion. Rupture of amnion is thought to be associated with a corresponding decrease in the extracellular collagen content and/or increase in collagenase activity. However, there is very little information concerning the detailed organisation of fibrillar collagen in amnion and how this might influence rupture. Here we identify a loss of lattice like arrangement in collagen organisation from areas near to the rupture site, and present a 9% increase in fibril spacing and a 50% decrease in fibrillar organisation using quantitative measurements gained by transmission electron microscopy and the novel application of synchrotron X-ray diffraction. These data provide an accurate insight into the biomechanical process of amnion rupture and highlight X-ray diffraction as a new and powerful tool in our understanding of this process.
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