Related Experiment Video
Updated: Mar 18, 2026
Acute Brain Trauma in Mice Followed By Longitudinal Two-photon Imaging
Published on: April 6, 2014
Pathophysiology Associated with Traumatic Brain Injury: Current Treatments and Potential Novel Therapeutics
Matthew L Pearn1,2, Ingrid R Niesman3,4, Junji Egawa1,2
1Department of Anesthesiology, Veterans Affairs San Diego Healthcare System, VA Medical Center 125, University of California, 3350 La Jolla Village Drive, San Diego, CA, 92161-5085, USA.
Insights
Traumatic brain injury (TBI) is a major cause of death, leading to molecular and cellular damage. This review explores TBI pathophysiology and potential therapies, including biologics, drugs, and noninvasive methods, to improve neuronal function.
Area of Science:
- Neuroscience
- Pathophysiology
- Pharmacology
Background:
- Traumatic brain injury (TBI) is a significant cause of mortality and morbidity, particularly in young individuals.
- Annual incidence in the US is 1.7 million, with 50,000 deaths, stemming from diverse causes like accidents, sports, and combat.
- TBI induces molecular, cellular, and tissue damage, including blood-brain barrier (BBB) disruption and neuroinflammation, leading to secondary injury.
Purpose of the Study:
- To review the pathophysiology of traumatic brain injury (TBI).
- To explore potential therapeutic strategies for TBI, encompassing biologics, pharmacological agents, and noninvasive interventions.
- To discuss the role of membrane/lipid rafts (MLR) and caveolin (Cav) in TBI recovery.
Main Methods:
- Literature review of TBI pathophysiology and therapeutic interventions.
- Analysis of molecular signaling, cellular alterations, and tissue injury mechanisms post-TBI.
- Examination of biologics (stem cells, gene therapy, peptides), pharmacological agents (anti-inflammatory, antiepileptic, progrowth), and noninvasive methods (exercise, TMS).
Main Results:
- TBI causes primary injury and secondary injury due to BBB damage and neuroinflammation, presenting a therapeutic window.
- Potential therapies aim to mitigate secondary injury and promote neuronal repair.
- Increased Cav-1 and MLR formation may enhance the efficacy of growth-promoting signaling cascades.
Conclusions:
- Understanding TBI pathophysiology is crucial for developing effective treatments.
- A multi-modal therapeutic approach combining biologics, pharmacology, and noninvasive methods shows promise.
- Targeting MLR and Cav-1 may offer novel strategies for improving neuronal function after TBI.
Abstract:
Traumatic brain injury (TBI) is one of the leading causes of death of young people in the developed world. In the United States alone, 1.7 million traumatic events occur annually accounting for 50,000 deaths. The etiology of TBI includes traffic accidents, falls, gunshot wounds, sports, and combat-related events. TBI severity ranges from mild to severe. TBI can induce subtle changes in molecular signaling, alterations in cellular structure and function, and/or primary tissue injury, such as contusion, hemorrhage, and diffuse axonal injury. TBI results in blood-brain barrier (BBB) damage and leakage, which allows for increased extravasation of immune cells (i.e., increased neuroinflammation). BBB dysfunction and impaired homeostasis contribute to secondary injury that occurs from hours to days to months after the initial trauma. This delayed nature of the secondary injury suggests a potential therapeutic window. The focus of this article is on the (1) pathophysiology of TBI and (2) potential therapies that include biologics (stem cells, gene therapy, peptides), pharmacological (anti-inflammatory, antiepileptic, progrowth), and noninvasive (exercise, transcranial magnetic stimulation). In final, the review briefly discusses membrane/lipid rafts (MLR) and the MLR-associated protein caveolin (Cav). Interventions that increase Cav-1, MLR formation, and MLR recruitment of growth-promoting signaling components may augment the efficacy of pharmacologic agents or already existing endogenous neurotransmitters and neurotrophins that converge upon progrowth signaling cascades resulting in improved neuronal function after injury.
More Related Videos
06:50A Preclinical Controlled Cortical Impact Model for Traumatic Hemorrhage Contusion and Neuroinflammation
Published on: June 10, 2020
09:29Controlled Cortical Impact Model of Mouse Brain Injury with Therapeutic Transplantation of Human Induced Pluripotent Stem Cell-Derived Neural Cells
Published on: July 10, 2019
