scholarly journals Use of a Wireless Video-EEG System to Monitor Epileptiform Discharges Following Lateral Fluid-Percussion Induced Traumatic Brain Injury

10.3791/59637 ◽  
2019 ◽  
Author(s):  
Matthew J. McGuire ◽  
Steven M. Gertz ◽  
Jolie D. McCutcheon ◽  
Chelsea R. Richardson ◽  
David J. Poulsen
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Wireless Video ◽  
Fluid Percussion ◽  
Epileptiform Discharges ◽  
Lateral Fluid Percussion ◽  
Video Eeg

A rapid lateral fluid percussion injury rodent model of traumatic brain injury and post-traumatic epilepsy

Neuroreport ◽  
2014 ◽  
pp. 1 ◽  
Author(s):  
Mustafa Q. Hameed ◽  
Grant S. Goodrich ◽  
Sameer C. Dhamne ◽  
Asa Amandusson ◽  
Tsung-Hsun Hsieh ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Rodent Model ◽  
Fluid Percussion ◽  
Fluid Percussion Injury ◽  
Post Traumatic ◽  
Lateral Fluid Percussion ◽  
Post Traumatic Epilepsy ◽  
Traumatic Epilepsy

scholarly journals Transcriptional Pathology Evolves Over Time in Rat Hippocampus Following Lateral Fluid Percussion Traumatic Brain Injury

2021 ◽  
Author(s):  
Rinaldo Catta-Preta ◽  
Iva Zdillar ◽  
Bradley Jenner ◽  
Emily T. Doisy ◽  
Kayleen Tercovich ◽  
...  
Keyword(s):  
Gene Expression ◽  
Traumatic Brain Injury ◽  
Cell Death ◽  
Brain Injury ◽  
Injury Severity ◽  
Cholesterol Metabolism ◽  
Fluid Percussion ◽  
Differential Gene ◽  
Lateral Fluid Percussion ◽  
The Brain

Traumatic brain injury (TBI) causes acute and lasting impacts on the brain, driving pathology along anatomical, cellular, and behavioral dimensions. Rodent models offer the opportunity to study TBI in a controlled setting, and enable analysis of the temporal progression that occurs from injury to recovery. We applied transcriptomic and epigenomic analysis, characterize gene expression and in ipsilateral hippocampus at 1 and 14 days following moderate lateral fluid percussion (LFP) injury. This approach enabled us to identify differential gene expression (DEG) modules with distinct expression trajectories across the two time points. The major DEG modules represented genes that were up- or downregulated acutely, but largely recovered by 14 days. As expected, DEG modules with acute upregulation were associated with cell death and astrocytosis. Interestingly, acutely downregulated DEGs related to neurotransmission mostly recovered by two weeks. Upregulated DEG modules related to inflammation were not necessarily elevated acutely, but were strongly upregulated after two weeks. We identified a smaller DEG module with delayed upregulation at 14 days including genes related to cholesterol metabolism and amyloid beta clearance. Finally, differential expression was paralleled by changes in H3K4me3 at the promoters of differentially expressed genes at one day following TBI. Following TBI, changes in cell viability, function and ultimately behavior are dynamic processes. Our results show how transcriptomics in the preclinical setting has the potential to identify biomarkers for injury severity and/or recovery, to identify potential therapeutic targets, and, in the future, to evaluate efficacy of an intervention beyond measures of cell death or spatial learning.

Treatment of traumatic brain injury with 17α-ethinylestradiol-3-sulfate in a rat model

2017 ◽  
Vol 127 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Harrison Kim ◽  
Tao Yu ◽  
Betul Cam-Etoz ◽  
Thomas van Groen ◽  
William J. Hubbard ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Body Weight ◽  
Brain Injury ◽  
Diffusion Tensor ◽  
T2 Mapping ◽  
Water Soluble ◽  
Fluid Percussion ◽  
The Mean ◽  
Lateral Fluid Percussion ◽  
Center Area

OBJECTIVE17α-ethynylestradiol-3-sulfate (EE-3-SO4) is a highly water-soluble synthetic estrogen that has an extended half-life (∼ 10 hours) over that of naturally occurring estrogen (∼ 10 minutes). In this study, EE-3-SO4 was evaluated in a lateral fluid percussion–induced traumatic brain injury (TBI) model in rats.METHODSA total of 9 groups of Sprague-Dawley rats underwent craniectomy. Twenty-four hours later, lateral fluid percussion was applied to 6 groups of animals to induce TBI; the remaining 3 groups served as sham control groups. EE-3-SO4 (1 mg/kg body weight in 0.4 ml/kg body weight) or saline (vehicle control) was injected intravenously 1 hour after TBI; saline was injected in all sham animals. One day after EE-3-SO4/saline injection, intracranial pressure (ICP), cerebral perfusion pressure (CPP), and partial brain oxygen pressure (PbtO2) were measured in Groups 1–3 (2 TBI groups and 1 sham group), and brain edema, diffusion axonal injury, and cerebral glycolysis were assessed in Groups 4–6 using MRI T2 mapping, diffusion tensor imaging (DTI), and FDG-PET imaging, respectively. Four days after dosing, the open-field anxiety of animals was assessed in Groups 7–9 by measuring the duration that each animal spent in the center area of an open chamber during 4 minutes of monitoring.RESULTSEE-3-SO4 significantly lowered ICP while raising CPP and PbtO2, compared with vehicle treatment in TBI-induced animals (p < 0.05). The mean size of cerebral edema of TBI animals treated with EE-3-SO4 was 25 ± 3 mm3 (mean ± SE), which was significantly smaller than that of vehicle-treated animals (67 ± 6 mm3, p < 0.001). Also, EE-3-SO4 treatment significantly increased the fractional anisotropy of the white matter in the ipsilateral side (p = 0.003) and cerebral glycolysis (p = 0.014). The mean duration that EE-3-SO4-treated animals spent in the center area was 12 ± 2 seconds, which was significantly longer than that of vehicle-treated animals (4 ± 1 seconds; p = 0.008) but not different from that of sham animals (11 ± 3 seconds; p > 0.05).CONCLUSIONSThese data support the clinical use of EE-3-SO4 for early TBI treatment.

scholarly journals Lateral Fluid Percussion: Model of Traumatic Brain Injury in Mice

10.3791/3063 ◽  
2011 ◽  
Author(s):  
Janet Alder ◽  
Wendy Fujioka ◽  
Jonathan Lifshitz ◽  
David P. Crockett ◽  
Smita Thakker-Varia
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Fluid Percussion ◽  
Lateral Fluid Percussion

Traumatic brain injury in the rat: Characterization of a lateral fluid-percussion model

Neuroscience ◽  
1989 ◽  
Vol 28 (1) ◽  
pp. 233-244 ◽  
Author(s):  
T.K. McIntosh ◽  
R. Vink ◽  
L. Noble ◽  
I. Yamakami ◽  
S. Fernyak ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Fluid Percussion ◽  
Lateral Fluid Percussion

scholarly journals Transcriptional Pathology Evolves over Time in Rat Hippocampus after Lateral Fluid Percussion Traumatic Brain Injury

2021 ◽  
Vol 2 (1) ◽  
pp. 512-525
Author(s):  
Rinaldo Catta-Preta ◽  
Iva Zdilar ◽  
Bradley Jenner ◽  
Emily T. Doisy ◽  
Kayleen Tercovich ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Rat Hippocampus ◽  
Fluid Percussion ◽  
Lateral Fluid Percussion ◽  
Over Time

scholarly journals Long-Term Effects of Enriched Environment on Neurofunctional Outcome and CNS Lesion Volume After Traumatic Brain Injury in Rats

2015 ◽  
pp. 129-145 ◽  
Author(s):  
M. MAEGELE ◽  
M. BRAUN ◽  
A. WAFAISADE ◽  
N. SCHÄFER ◽  
M. LIPPERT-GRUENER ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Enriched Environment ◽  
Tissue Loss ◽  
Sham Operation ◽  
Lesion Volume ◽  
Rotarod Test ◽  
Fluid Percussion ◽  
Lateral Fluid Percussion

To determine whether the exposure to long term enriched environment (EE) would result in a continuous improvement of neurological recovery and ameliorate the loss of brain tissue after traumatic brain injury (TBI) vs. standard housing (SH). Male Sprague-Dawley rats (300-350 g, n=28) underwent lateral fluid percussion brain injury or SHAM operation. One TBI group was held under complex EE for 90 days, the other under SH. Neuromotor and sensorimotor dysfunction and recovery were assessed after injury and at days 7, 15, and 90 via Composite Neuroscore (NS), RotaRod test, and Barnes Circular Maze (BCM). Cortical tissue loss was assessed using serial brain sections. After day 7 EE animals showed similar latencies and errors as SHAM in the BCM. SH animals performed notably worse with differences still significant on day 90 (p<0.001). RotaRod test and NS revealed superior results for EE animals after day 7. The mean cortical volume was significantly higher in EE vs. SH animals (p=0.003). In summary, EE animals after lateral fluid percussion (LFP) brain injury performed significantly better than SH animals after 90 days of recovery. The window of opportunity may be wide and also lends further credibility to the importance of long term interventions in patients suffering from TBI.

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