ArticleActa neuropathologica communications2019
Low-level blast exposure disrupts gliovascular and neurovascular connections and induces a chronic vascular pathology in rat brain.
Article in Acta neuropathologica communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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Who cites it
55 citing papers in PubMed, 98 citations in OpenAlex.
- PDE5 inhibition restores mitochondrial function and improves neurobehavioral outcomes after repeated mild blast TBI.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Article
- Primary Blast-Induced Traumatic Brain Injury as a Risk Factor for (Cerebro)vascular Disorder: Clinical Manifestations, Blast Physics, Biomechanics, Pathobiology, and Critical Gaps.International journal of molecular sciences · 2026Review
- Spatial associations between neuronal membrane damage and vasculature after repetitive diffuse TBI in pigs.Acta neuropathologica communications · 2026Article
- Integrated Blood Biomarker and Neurobehavioural Signatures of Latent Neuroinjury in Experienced Military Breachers Exposed to Repetitive Low-Intensity Blast.International journal of molecular sciences · 2026Article
- Boldine treatment prevents chronic cognitive impairment and exaggerated fear learning in rats exposed to repetitive low-level blast injury.Frontiers in cellular neuroscience · 2026Article
- Sex-dependent blood-brain barrier alterations following repeated mild blast traumatic brain injury at varying inter-injury intervals.Experimental neurology · 2025Article
- Sex and Genotype Affect Mouse Hippocampal Gene Expression in Response to Blast-Induced Traumatic Brain Injury.Molecular neurobiology · 2025Article
- Bioprinted platform for parallelized screening of engineered microtissues in vivo.Cell stem cell · 2025Article
- Intramural hematomas and astrocytic infiltration precede perivascular inflammation in a rat model of repetitive low-level blast injury.Journal of neuropathology and experimental neurology · 2025Article
- Repetitive Low-Level Blast Exposure Alters Circulating Myeloperoxidase, Matrix Metalloproteinases, and Neurovascular Endothelial Molecules in Experienced Military Breachers.International journal of molecular sciences · 2025Article
- Minocycline partially reverses established PTSD-related behavioral traits in rats exposed to repetitive low-level blast injury.Frontiers in neurology · 2025Article
- Serotonin 5-HT2A receptor expression is chronically decreased in the anterior cerebral cortex of male rats following repetitive low-level blast exposure.Frontiers in neurology · 2025Article
- Temporal Alterations in Cerebrovascular Glycocalyx and Cerebral Blood Flow after Exposure to a High-Intensity Blast in Rats.International journal of molecular sciences · 2024Article
- Quantification of enlarged deep medullary vein volumes in Sturge-Weber syndrome.Quantitative imaging in medicine and surgery · 2024Article
- The Neurovascular Unit as a Locus of Injury in Low-Level Blast-Induced Neurotrauma.International journal of molecular sciences · 2024Review
- Effects of Low-Level Blast on Neurovascular Health and Cerebral Blood Flow: Current Findings and Future Opportunities in Neuroimaging.International journal of molecular sciences · 2024Review
- Impact of dietary changes on retinal neuronal plasticity in rodent models of physical and psychological trauma.Frontiers in genetics · 2024Article
- Identifying the Target Traumatic Brain Injury Population for Hyperbaric Oxygen Therapy.International journal of molecular sciences · 2023Review
- Low-intensity open-field blast exposure effects on neurovascular unit ultrastructure in mice.Acta neuropathologica communications · 2023Article
- Three dimensional evaluation of cerebrovascular density and branching in chronic traumatic encephalopathy.Acta neuropathologica communications · 2023Article
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Authors and funding
19 authors at 6 institutions in 1 country.
Funding
Abstract
Much concern exists over the role of blast-induced traumatic brain injury (TBI) in the chronic cognitive and mental health problems that develop in veterans and active duty military personnel. The brain vasculature is particularly sensitive to blast injury. The aim of this study was to characterize the evolving molecular and histologic alterations in the neurovascular unit induced by three repetitive low-energy blast exposures (3 × 74.5 kPa) in a rat model mimicking human mild TBI or subclinical blast exposure. High-resolution two-dimensional differential gel electrophoresis (2D-DIGE) and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry of purified brain vascular fractions from blast-exposed animals 6 weeks post-exposure showed decreased levels of vascular-associated glial fibrillary acidic protein (GFAP) and several neuronal intermediate filament proteins (α-internexin and the low, middle, and high molecular weight neurofilament subunits). Loss of these proteins suggested that blast exposure disrupts gliovascular and neurovascular interactions. Electron microscopy confirmed blast-induced effects on perivascular astrocytes including swelling and degeneration of astrocytic endfeet in the brain cortical vasculature. Because the astrocyte is a major sensor of neuronal activity and regulator of cerebral blood flow, structural disruption of gliovascular integrity within the neurovascular unit should impair cerebral autoregulation. Disrupted neurovascular connections to pial and parenchymal blood vessels might also affect brain circulation. Blast exposures also induced structural and functional alterations in the arterial smooth muscle layer. Interestingly, by 8 months after blast exposure, GFAP and neuronal intermediate filament expression had recovered to control levels in isolated brain vascular fractions. However, despite this recovery, a widespread vascular pathology was still apparent at 10 months after blast exposure histologically and on micro-computed tomography scanning. Thus, low-level blast exposure disrupts gliovascular and neurovascular connections while inducing a chronic vascular pathology.
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Registered trials
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