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@ARTICLE{Maiti:894665,
author = {Maiti, Santanu and Frielinghaus, Henrich and Gräßel,
David and Dulle, Martin and Axer, Markus and Förster,
Stephan},
title = {{D}istribution and orientation of nerve fibers and myelin
assembly in a brain section retrieved by small-angle neutron
scattering},
journal = {Scientific reports},
volume = {11},
number = {1},
issn = {2045-2322},
address = {[London]},
publisher = {Macmillan Publishers Limited, part of Springer Nature},
reportid = {FZJ-2021-03346},
pages = {17306},
year = {2021},
abstract = {The structural connectivity of the brain has been addressed
by various imaging techniques such as diffusion weighted
magnetic resonance imaging (DWMRI) or specific microscopic
approaches based on histological staining or label-free
using polarized light (e.g., three-dimensional Polarized
Light Imaging (3D-PLI), Optical Coherence Tomography (OCT)).
These methods are sensitive to different properties of the
fiber enwrapping myelin sheaths i.e. the distribution of
myelin basic protein (histology), the apparent diffusion
coefficient of water molecules restricted in their movements
by the myelin sheath (DWMRI), and the birefringence of the
oriented myelin lipid bilayers (3D-PLI, OCT). We show that
the orientation and distribution of nerve fibers as well as
myelin in thin brain sections can be determined using
scanning small angle neutron scattering (sSANS). Neutrons
are scattered from the fiber assembly causing anisotropic
diffuse small-angle scattering and Bragg peaks related to
the highly ordered periodic myelin multilayer structure. The
scattering anisotropy, intensity, and angular position of
the Bragg peaks can be mapped across the entire brain
section. This enables mapping of the fiber and myelin
distribution and their orientation in a thin brain section,
which was validated by 3D-PLI. The experiments became
possible by optimizing the neutron beam collimation to
highest flux and enhancing the myelin contrast by
deuteration. This method is very sensitive to small
microstructures of biological tissue and can directly
extract information on the average fiber orientation and
even myelin membrane thickness. The present results pave the
way toward bio-imaging for detecting structural aberrations
causing neurological diseases in future.},
cin = {JCNS-FRM-II / JCNS-4 / MLZ / JCNS-1 / INM-1},
ddc = {600},
cid = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-4-20201012 / I:(DE-588b)4597118-3 /
I:(DE-Juel1)JCNS-1-20110106 / I:(DE-Juel1)INM-1-20090406},
pnm = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
(POF4-6G4) / 632 - Materials – Quantum, Complex and
Functional Materials (POF4-632)},
pid = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
experiment = {EXP:(DE-MLZ)KWS1-20140101},
typ = {PUB:(DE-HGF)16},
pubmed = {34453063},
UT = {WOS:000691009100022},
doi = {10.1038/s41598-021-92995-2},
url = {https://juser.fz-juelich.de/record/894665},
}