Topics

Dynamic Blood-Brain Barrier Regulation in Mild Traumatic Brain Injury.

07:00 EST 8th November 2019 | BioPortfolio

Summary of "Dynamic Blood-Brain Barrier Regulation in Mild Traumatic Brain Injury."

Whereas the diagnosis of moderate and severe traumatic brain injury (TBI) is readily visible on current medical imaging paradigms (magnetic resonance imaging [MRI] and computed tomography [CT] scanning), a far greater challenge is associated with the diagnosis and subsequent management of mild TBI (mTBI), especially concussion which, by definition, is characterized by a normal CT. To investigate whether the integrity of the blood-brain barrier (BBB) is altered in a high-risk population for concussions, we studied professional mixed martial arts (MMA) fighters and adolescent rugby players. Additionally, we performed the linear regression between the BBB disruption defined by increased gadolinium contrast extravasation on dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) on MRI and multiple biomechanical parameters indicating the severity of impacts recorded using instrumented mouthguards in professional MMA fighters. MMA fighters were examined pre-fight for a baseline and again within 120 h post-competitive fight, whereas rugby players were examined pre-season and again post-season or post-match in a subset of cases. DCE-MRI, serological analysis of BBB biomarkers, and an analysis of instrumented mouthguard data, was performed. Here, we provide pilot data that demonstrate disruption of the BBB in both professional MMA fighters and rugby players, dependent on the level of exposure. Our data suggest that biomechanical forces in professional MMA and adolescent rugby can lead to BBB disruption. These changes on imaging may serve as a biomarker of exposure of the brain to repetitive subconcussive forces and mTBI.

Affiliation

Journal Details

This article was published in the following journal.

Name: Journal of neurotrauma
ISSN: 1557-9042
Pages:

Links

DeepDyve research library

PubMed Articles [24745 Associated PubMed Articles listed on BioPortfolio]

Behavioral treatment for post-traumatic headache after mild traumatic brain injury: Rationale and case series.

Headache is among the most common persistent symptoms after mild traumatic brain injury (mTBI). Currently available treatments have limited efficacy.

Deployment, suicide, and overdose among comorbidity phenotypes following mild traumatic brain injury: A retrospective cohort study from the Chronic Effects of Neurotrauma Consortium.

Mild traumatic brain injury in the Veteran population is frequently comorbid with pain, post-traumatic stress disorder, and/or depression. However, not everyone exposed to mild traumatic brain injury ...

Indirect Traumatic Optic Neuropathy in Mild Chronic Traumatic Brain Injury.

To analyze the clinical presentation and optical coherence tomography (OCT) findings in indirect traumatic optic neuropathy (ITON) in veterans with chronic mild traumatic brain injury (mTBI).

Persistent Changes in Child Behavior After Early Mild Traumatic Brain Injury.

To document longitudinal changes in internalizing and externalizing behavioral symptoms after mild traumatic brain injury (mTBI) sustained in early childhood (i.e., between 18 and 60 months of age).

Sphenopalatine Ganglion Stimulation is a Reversible and Frequency-Dependent Modulator of the Blood-Brain Barrier.

The sphenopalatine ganglion (SPG) is a vasoactive mediator of the anterior intracranial circulation in mammals. SPG stimulation has been demonstrated to alter blood-brain barrier (BBB) permeability, a...

Clinical Trials [17280 Associated Clinical Trials listed on BioPortfolio]

Aerobic Exercise Training in Mild Cognitive Impairment Study

This study is being done to find out whether regulation of brain blood flow is altered in patents with mild cognitive impairment (those who have memory problems but otherwise healthy) when...

Advanced Imaging Tools in the Study of Mild Traumatic Brain Injury

We will utilize a set of imaging modalities including computed tomography (CT), positron emission tomography (PET), and a suite of magnetic resonance imaging (MRI) tools, to investigate th...

The Relevance of the Blood-brain Barrier to Cognitive Dysfunction and Alzheimer's Disease

This study attempts to replicate the findings published in Nature Medicine by Nation and colleagues (2019). By using a large observational cohort (DZNE - Longitudinal Cognitive Impairment ...

Measuring Blood Flow Characteristics Using Dynamic Contrast Enhanced Magnetic Resonance Imaging

Dynamic contrast-enhanced (DCE) MRI gives quantitative and semi-quantitative information about the integrity of the vascular system and can be used to quantify blood-brain barrier (BBB) in...

Brain Stimulation for Mild Traumatic Brain Injury

The purpose of this study is to determine the early effects of transcranial direct current stimulation (tDCS) in patients with mild traumatic brain injury and persistent post concussion sy...

Medical and Biotech [MESH] Definitions

Bleeding within the brain as a result of penetrating and nonpenetrating CRANIOCEREBRAL TRAUMA. Traumatically induced hemorrhages may occur in any area of the brain, including the CEREBRUM; BRAIN STEM (see BRAIN STEM HEMORRHAGE, TRAUMATIC); and CEREBELLUM.

Specialized non-fenestrated tightly-joined ENDOTHELIAL CELLS with TIGHT JUNCTIONS that form a transport barrier for certain substances between the cerebral capillaries and the BRAIN tissue.

The barrier between the perineurium of PERIPHERAL NERVES and the endothelium (ENDOTHELIUM, VASCULAR) of endoneurial CAPILLARIES. The perineurium acts as a diffusion barrier, but ion permeability at the blood-nerve barrier is still higher than at the BLOOD-BRAIN BARRIER.

The property of blood capillary ENDOTHELIUM that allows for the selective exchange of substances between the blood and surrounding tissues and through membranous barriers such as the BLOOD-AIR BARRIER; BLOOD-AQUEOUS BARRIER; BLOOD-BRAIN BARRIER; BLOOD-NERVE BARRIER; BLOOD-RETINAL BARRIER; and BLOOD-TESTIS BARRIER. Small lipid-soluble molecules such as carbon dioxide and oxygen move freely by diffusion. Water and water-soluble molecules cannot pass through the endothelial walls and are dependent on microscopic pores. These pores show narrow areas (TIGHT JUNCTIONS) which may limit large molecule movement.

A form of acquired brain injury which occurs when a sudden trauma causes damage to the brain.

Quick Search


DeepDyve research library

Relevant Topics

Anxiety Disorders
Anxiety is caused by stress. It is a natural reaction, and is beneficial in helping us deal with tense situations and pressure. It is deterimental when is becomes an excessive, irrational dread of everyday situations. The most common types of anxiety di...

Radiology
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...


Searches Linking to this Article