Abstract:
:Traumatic brain injury resulting from exposure to blast overpressure (BOP) is associated with neuropathology including impairment of the blood-brain barrier (BBB). This study examined the effects of repeated exposure to primary BOP and post-blast treatment with an antioxidant, N-acetylcysteine amide (NACA) on the integrity of BBB. Anesthetized rats were exposed to three 110 kPa BOPs separated by 0.5 h. BBB integrity was examined in vivo via a cranial window allowing imaging of pial microcirculation by intravital microscopy. Tetramethylrhodamine isothiocyanate Dextran (TRITC-Dextran, mw = 40 kDa or 150 kDa) was injected intravenously 2.5 h after the first BOP exposure and the leakage of TRITC-Dextran from pial microvessels into the brain parenchyma was assessed. The animals were randomized into 6 groups (n = 5/group): four groups received 40 kDa TRITC-Dextran (BOP-40, sham-40, BOP-40 NACA, and sham-40 NACA), and two groups received 150 kDa TRITC-Dextran (BOP-150 and sham-150). NACA treated groups were administered NACA 2 h after the first BOP exposure. The rate of TRITC-Dextran leakage was significantly higher in BOP-40 than in sham-40 group. NACA treatment significantly reduced TRITC-Dextran leakage in BOP-40 NACA group and sham-40 NACA group presented the least amount of leakage. The rate of leakage in BOP-150 and sham-150 groups was comparable to sham-40 NACA and thus these groups were not assessed for the effects of NACA. Collectively, these data suggest that BBB integrity is compromised following BOP exposure and that NACA treatment at a single dose may significantly protect against blast-induced BBB breakdown.
journal_name
Front Neuroljournal_title
Frontiers in neurologyauthors
Kawoos U,Abutarboush R,Zarriello S,Qadri A,Ahlers ST,McCarron RM,Chavko Mdoi
10.3389/fneur.2019.00650subject
Has Abstractpub_date
2019-06-26 00:00:00pages
650issn
1664-2295journal_volume
10pub_type
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2019.00511
更新日期:2019-05-15 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
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abstract::Tau plays an important pathological role in a group of neurodegenerative diseases called tauopathies, including Alzheimer's disease, Pick's disease, chronic traumatic encephalopathy and corticobasal degeneration. In each disease, tau self-assembles abnormally to form filaments that deposit in the brain. Tau is a nativ...
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abstract::Introduction: The purpose of this study was to verify whether the prevalence of intracranial aneurysm (IA) in patients with acoustic neuroma is greater than that in age- and sex-matched controls and to evaluate the independent risk factors related to the occurrence of IA. Methods: We retrospectively analyzed 231 patie...
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pub_type: 杂志文章
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pub_type: 杂志文章,评审
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2013.00164
更新日期:2013-10-21 00:00:00
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pub_type: 杂志文章,评审
doi:10.3389/fneur.2019.00656
更新日期:2019-06-25 00:00:00
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journal_title:Frontiers in neurology
pub_type:
doi:10.3389/fneur.2016.00067
更新日期:2016-05-04 00:00:00
abstract::The identification of ocular tremor in a small cohort of patients with Parkinson's disease (PD) had lay somewhat dormant until the recent report of a pervasive ocular tremor as a universal finding in a large PD cohort that was, however, generally absent from a cohort of age-matched healthy subjects. The reported tremo...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2017.00134
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journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00147
更新日期:2016-09-21 00:00:00
abstract::Background: Essential tremor (ET) is a common, progressive neurological syndrome with bilateral upper-limb dysfunction of at least 3-year duration, with or without tremor in other body locations. This disorder has a negative impact on daily function and quality of life. A single oral therapy has been approved by FDA f...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00597
更新日期:2019-06-11 00:00:00
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pub_type: 杂志文章
doi:10.3389/fneur.2020.00214
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pub_type: 杂志文章
doi:10.3389/fneur.2020.00931
更新日期:2020-08-25 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00626
更新日期:2019-06-13 00:00:00
abstract::The protein S-100B is a biomarker increasingly used within neurosurgery and neurointensive care. As a relatively sensitive, yet unspecific, indicator of CNS pathology, potential sources of error must be clearly understood when interpreting serum S-100B levels. This case report studied the course of a 46-year-old gentl...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2012.00170
更新日期:2012-12-05 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2019.00493
更新日期:2019-05-08 00:00:00
abstract::Objective: The aims of the present systematic review were to explore the prevalence of migraine with anxiety exclusively and determine if and why there are likely to be differences across genders. Introduction: Migraine is a very common neurological disorder and cause of productive disability worldwide that is more fr...
journal_title:Frontiers in neurology
pub_type:
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更新日期:2020-10-26 00:00:00
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pub_type: 杂志文章
doi:10.3389/fneur.2019.01330
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pub_type: 杂志文章,评审
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journal_title:Frontiers in neurology
pub_type: 已发布勘误
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更新日期:2021-01-12 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00456
更新日期:2019-05-01 00:00:00
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journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00093
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journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2017.00541
更新日期:2017-10-20 00:00:00
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pub_type: 杂志文章,评审
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pub_type: 杂志文章,评审
doi:10.3389/fneur.2018.00103
更新日期:2018-03-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.3389/fneur.2018.00043
更新日期:2018-02-12 00:00:00
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pub_type: 杂志文章
doi:10.3389/fneur.2019.00279
更新日期:2019-03-26 00:00:00