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Alzheimer's disease pathology is associated with earlier alterations to blood–brain barrier water permeability compared with healthy ageing in TgF344‐AD rats
Dickie, Ben R.; orcid: 0000-0001-5018-2111; email: ben.dickie@manchester.ac.uk Boutin, Hervé Parker, Geoff J. M.; orcid: 0000-0003-2934-2234 Parkes, Laura M.; orcid: 0000-0001-6488-507X
Dickie, Ben R.; orcid: 0000-0001-5018-2111; email: ben.dickie@manchester.ac.uk
Boutin, Hervé
Parker, Geoff J. M.; orcid: 0000-0003-2934-2234
Parkes, Laura M.; orcid: 0000-0001-6488-507X
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2021-03-15
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2020-11-05
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The effects of Alzheimer's disease (AD) and ageing on blood–brain barrier (BBB) breakdown are investigated in TgF344‐AD and wild‐type rats aged 13, 18 and 21 months. Permeability surface area products of the BBB to water (PSw) and gadolinium‐based contrast agent (PSg) were measured in grey matter using multiflip angle multiecho dynamic contrast‐enhanced MRI. At 13 months of age, there was no significant difference in PSw between TgF344‐AD and wild‐types (p = 0.82). Between 13 and 18 months, PSw increased in TgF344‐AD rats (p = 0.027), but not in wild‐types (p = 0.99), leading to significantly higher PSw in TgF344‐AD rats at 18 months, as previously reported (p = 0.012). Between 18 and 21 months, PSw values increased in wild‐types (p = 0.050), but not in TgF344‐AD rats (p = 0.50). These results indicate that BBB water permeability is affected by both AD pathology and ageing, but that changes occur earlier in the presence of AD pathology. There were no significant genotype or ageing effects on PSg (p > 0.05). In conclusion, we detected increases in BBB water permeability with age in TgF344‐AD and wild‐type rats, and found that changes occurred at an earlier age in rats with AD pathology.
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NMR in Biomedicine, volume 34, issue 7, page e4510
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From Wiley via Jisc Publications Router
History: received 2020-11-05, rev-recd 2021-02-06, accepted 2021-02-26, pub-electronic 2021-03-15, pub-print 2021-07
Article version: VoR
Publication status: Published
Funder: Biotechnology and Biological Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000268; Grant(s): BB/F011350
Funder: Engineering and Physical Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000266; Grant(s): EP/M005909/1
Funder: European Union’s Seventh Framework Programme; Grant(s): FP7/2007‐2013, HEALTH‐F2‐2011‐278850, HEALTH‐F2‐2011‐278850
History: received 2020-11-05, rev-recd 2021-02-06, accepted 2021-02-26, pub-electronic 2021-03-15, pub-print 2021-07
Article version: VoR
Publication status: Published
Funder: Biotechnology and Biological Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000268; Grant(s): BB/F011350
Funder: Engineering and Physical Sciences Research Council; Id: http://dx.doi.org/10.13039/501100000266; Grant(s): EP/M005909/1
Funder: European Union’s Seventh Framework Programme; Grant(s): FP7/2007‐2013, HEALTH‐F2‐2011‐278850, HEALTH‐F2‐2011‐278850