Abstract:
:Background: Mild traumatic brain injuries (mTBIs) are a significant social, sport, and military health issue. In spite of advances in the clinical management of these injuries, the underlying pathophysiology is not well-understood. There is a critical need to advance objective biomarkers, allowing the identification and tracking of the long-term evolution of changes resulting from mTBI. Diffusion-weighted imaging (DWI) allows for the assessment of white-matter properties in the brain and shows promise as a suitable biomarker of mTBI pathophysiology. Methods: 34 individuals within a year of an mTBI (age: 24.4 ± 7.4) and 18 individuals with no history of mTBI (age: 23.2 ± 3.4) participated in this study. Participants completed self-report measures related to functional outcomes, psychological health, post-injury symptoms, and sleep, and underwent a neuroimaging session that included DWI. Whole-brain white matter was skeletonized using tract-based spatial statistics (TBSS) and compared between groups as well as correlated within-group with the self-report measures. Results: There were no statistically significant anatomical differences between the two groups. After controlling for time since injury, fractional anisotropy (FA) demonstrated a negative correlation with sleep quality scores (higher FA was associated with better sleep quality) and increasing depressive symptoms in the mTBI participants. Conversely, mean (MD) and radial diffusivity (RD) demonstrated positive correlations with sleep quality scores (higher RD was associated with worse sleep quality) and increasing depressive symptoms. These correlations were observed bilaterally in the internal capsule (anterior and posterior limbs), corona radiata (anterior and superior), fornix, and superior fronto-occipital fasciculi. Conclusion: The results of this study indicate that the clinical presentation of mTBI, particularly with respect to depression and sleep, is associated with reduced white-matter integrity in multiple areas of the brain, even after controlling for time since injury. These areas are generally associated not only with sleep and emotion regulation but also cognition. Consequently, the onset of depression and sleep dysfunction as well as cognitive impairments following mTBI may be closely related to each other and to white-matter integrity throughout the brain.
journal_name
Front Neuroljournal_title
Frontiers in neurologyauthors
Raikes AC,Bajaj S,Dailey NS,Smith RS,Alkozei A,Satterfield BC,Killgore WDSdoi
10.3389/fneur.2018.00468subject
Has Abstractpub_date
2018-06-20 00:00:00pages
468issn
1664-2295journal_volume
9pub_type
杂志文章abstract::Epilepsy may reflect a focal abnormality of cerebral tissue, but the generation of seizures typically involves propagation of abnormal activity through cerebral networks. We examined epileptiform discharges (spikes) with dense array electroencephalography (dEEG) in five patients to search for the possible engagement o...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00055
更新日期:2013-05-15 00:00:00
abstract::Objective: A number of studies have reported that aldehyde dehydrogenase-2 (ALDH2) polymorphisms maybe associated with the risk of Alzheimer's disease (AD) and Parkinson's disease (PD). However, the results of such studies are inconsistent. We therefore conducted a meta-analysis to clarify the association between ALDH...
journal_title:Frontiers in neurology
pub_type:
doi:10.3389/fneur.2019.00290
更新日期:2019-03-28 00:00:00
abstract::Background: Over the last few years there has been growing interest in use of visual measures as useful tools for multiple sclerosis (MS) prognosis and tracking. Optic neuritis (ON) being a prevalent and often-presenting symptom of the disease, as well as the high occurrence rate of posterior visual system damage inde...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00455
更新日期:2019-05-03 00:00:00
abstract::Inflammation after traumatic spinal cord injury (SCI) is non-resolving and thus still present in chronic injury stages. It plays a key role in the pathophysiology of SCI and has been associated with further neurodegeneration and development of neuropathic pain. Neural precursor cells (NPCs) have been shown to reduce t...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00428
更新日期:2018-06-08 00:00:00
abstract::Resting-state imaging designs are powerful in modeling functional networks in movement disorders because they eliminate task performance related confounds. However, the most common metric for quantifying functional connectivity, i.e., bivariate magnitude coherence (Coh), can sometimes be contaminated by spurious corre...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00149
更新日期:2013-10-10 00:00:00
abstract::There is increasing evidence for hippocampal involvement in Amyotrophic Lateral Sclerosis (ALS). Recent neuroimaging studies have been focused on disease-related hippocampal volume alterations while changes in hippocampal shape have been investigated less frequently. Here, we aimed to characterize the patterns of hipp...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00565
更新日期:2018-07-20 00:00:00
abstract::Many neurodegenerative disorders are associated with rapid eye movement sleep (REMS) loss; however, the mechanism was unknown. As REMS loss elevates noradrenaline (NA) level in the brain as well as induces neuronal apoptosis and degeneration, in this study, we have delineated the intracellular molecular pathway involv...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00025
更新日期:2016-03-07 00:00:00
abstract::Background: Glioblastoma (GBM) is the most aggressive type of primary malignant brain tumor. Carmustine is used by intravenous injection or local implantation in the resection cavity for gliomas, including GBMs. However, the therapeutic potential of carmustine is not well-recognized. This analysis aimed to evaluate th...
journal_title:Frontiers in neurology
pub_type:
doi:10.3389/fneur.2020.01036
更新日期:2020-09-17 00:00:00
abstract::For most individuals with traumatic brain injury (TBI), the ability to work is crucial to financial and psychological well-being. TBI produces a wide range of cognitive, physical, emotional, and interpersonal impairments that may undermine the ability to work. Employment is therefore a primary goal of TBI rehabilitati...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00190
更新日期:2019-03-15 00:00:00
abstract::The mechanisms involved in traumatic brain injury have yet to be fully characterized. One mechanism that, especially in high-energy trauma, could be of importance is cavitation. Cavitation can be described as a process of vaporization, bubble generation, and bubble implosion as a result of a decrease and subsequent in...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00010
更新日期:2016-02-01 00:00:00
abstract::Attention impairment may provide a cohesive neurobiological explanation for clusters of clinical symptoms that occur after a concussion; therefore, objective quantification of attention is needed. Visually tracking a moving target is an attention-dependent sensorimotor function, and eye movement can be recorded easily...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2018.00611
更新日期:2018-07-26 00:00:00
abstract::Significant advances have been made in the understanding of the numerous mechanisms involved in Parkinson's disease (PD) pathogenesis. The identification of PD pathogenic mutations and the use of different animal models have contributed to better elucidate the processes underlying the disease. Here, we report a brief ...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2018.00103
更新日期:2018-03-01 00:00:00
abstract:PURPOSE:Traumatic brain injury involving loss of consciousness has focal effects in the human brainstem, suggesting that it may have particular consequences for eye movement control. This hypothesis was investigated by measurements of vergence eye movement parameters. METHODS:Disparity vergence eye movements were meas...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2014.00282
更新日期:2015-02-03 00:00:00
abstract:INTRODUCTION:Fatigue is the most frequently reported persistent symptom following a mild traumatic brain injury (mTBI), but the explanations for the persisting fatigue symptoms in mTBI remain controversial. In this study, we investigated the change of cerebral blood flow during the performance of a psychomotor vigilanc...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00496
更新日期:2017-09-21 00:00:00
abstract::Objective: Hybrid recanalization for vertebral artery (VA) long-segmental occlusion using a combination of ostial vertebral endarterectomy and distal endovascular stenting has achieved technical success. The safety and efficacy of the hybrid technique should be further evaluated. Methods: We examined a cohort of refra...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00387
更新日期:2020-05-12 00:00:00
abstract:OBJECTIVE:(1) To determine the brain connectivity pattern associated with clinical rigidity scores in Parkinson's disease (PD) and (2) to determine the relation between clinically assessed rigidity and quantitative metrics of motor performance. BACKGROUND:Rigidity, the resistance to passive movement, is exacerbated in...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00067
更新日期:2013-06-05 00:00:00
abstract:Introduction:The current standard treatment for patients with Duchenne muscular dystrophy (DMD) involves corticosteroids. Granulocyte colony-stimulating factor (G-CSF) induces the proliferation of satellite cells and myoblasts and, in turn, muscle regeneration. Beneficial effects of G-CSF were also described for skelet...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00566
更新日期:2017-10-26 00:00:00
abstract::Quantitative mapping of the magnetic susceptibility and the effective transverse relaxation rate (R2*) are suitable to assess the iron content in distinct brain regions. In this prospective, explorative study the iron accumulation in deep gray matter nuclei (DGM) in myotonic dystrophy type 1 (DM1) and 2 (DM2) and its ...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.01320
更新日期:2019-12-13 00:00:00
abstract::Moderate-severe traumatic brain injury (TBI) may result in difficulty with emotion recognition, which has negative implications for social functioning. As aspects of social cognition have been linked to resting-state functional connectivity (RSFC) in the default mode network (DMN), we sought to determine whether DMN c...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00825
更新日期:2019-08-09 00:00:00
abstract::Background: We hypothesized that right and left temporal lobe epilepsy (RTLE and LTLE, respectively) have distinctive spatial patterns of white matter (WM) changes that can be differentiated and interpreted with the use of multiple diffusion parameters. We compared the global microstructure of fiber bundles with regar...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00986
更新日期:2019-10-01 00:00:00
abstract::Background: Recent developments in mobile technology have enabled the investigation of human movements and mobility under natural conditions, i.e., in the home environment. Iron accumulation in the basal ganglia is deleterious in Parkinson's disease (i.e., iron accumulation with lower striatal level of dopamine). The ...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2019.00833
更新日期:2019-08-08 00:00:00
abstract::Microglia are activated during pathological events in the brain and are capable of releasing various types of inflammatory cytokines. Here, we demonstrate that the addition of 5% microglia activated by 1 μg/ml lipopolysaccharides (LPS) to hippocampal cultures upregulates Na(+) current densities (INavD) of bipolar as w...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00044
更新日期:2016-03-30 00:00:00
abstract:UNLABELLED:Management of West syndrome is unsatisfactory. In our clinic we observed that a significant proportion of patients respond to usual dose of valproate. OBJECTIVE:To prospectively assess the efficacy of valproate in controlling infantile spasms in West syndrome. METHODS:Consecutive patients presenting with W...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2012.00166
更新日期:2012-11-23 00:00:00
abstract:OBJECTIVES:Stroke can happen to people away from home. It is unknown whether non-resident and resident stroke patients have equal access to thrombolysis. MATERIALS AND METHODS:Consecutive patients cared for by the Stroke Emergency Mobile between 2011 and 2016 after prompting suspicion of acute stroke during the emerge...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2017.00319
更新日期:2017-06-30 00:00:00
abstract::Background and Purpose: The relationship between cerebral microbleeds (CMBs) and prognosis in patients with ischemic stroke is still unclear. Our aim here was to verify the relationship between CMBs and functional outcomes in patients with minor ischemic stroke treated with antiplatelet therapy. Methods: We retrospect...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2020.00522
更新日期:2020-06-16 00:00:00
abstract::Objectives: Return to School (RTS) and Return to Activity/Play (RTA) protocols are important in concussion management. Minimal evidence exists as to sequence and whether progression can occur simultaneously. Experts recommend that children/youth fully return to school before beginning RTA protocols. This study investi...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.00792
更新日期:2019-07-23 00:00:00
abstract::Over the last two decades, many experimental and clinical studies have provided solid evidence that alpha-synuclein (α-syn), a small, natively unfolded protein, is closely related to Parkinson's disease (PD) pathology. To provide an overview on the different roles of this protein, here we propose a synopsis of seminal...
journal_title:Frontiers in neurology
pub_type: 杂志文章,评审
doi:10.3389/fneur.2018.00295
更新日期:2018-05-04 00:00:00
abstract:INTRODUCTION:Limited evidence exists on effective interventions to improve knowledge of preventive medications in patients with chronic diseases, such as stroke. We investigated the effectiveness of a nurse-led intervention, where a component was to improve knowledge of prevention medications, in patients with stroke o...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2016.00205
更新日期:2016-11-18 00:00:00
abstract:INTRODUCTION:Alzheimer's disease (AD) is a long term progressive neurodegenerative disease and might affect the retinal nerve fiber layer thickness (RNFLT) of the eye. There is increasing evidence that visual evoked potentials (VEP), which are an objective way to indicate visual field loss, might be affected by the dis...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2013.00203
更新日期:2013-12-16 00:00:00
abstract::Autism Spectrum Disorders comprise conditions that may affect cognitive development, motor skills, social interaction, communication, and behavior. This set of functional deficits often results in lack of independence for the diagnosed individuals, and severe distress for patients, families, and caregivers. There is a...
journal_title:Frontiers in neurology
pub_type: 杂志文章
doi:10.3389/fneur.2019.01145
更新日期:2019-10-31 00:00:00