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Related Concept Videos

Traumatic Brain Injury l: Introduction01:28

Traumatic Brain Injury l: Introduction

DefinitionTraumatic brain injury, or TBI, is a disturbance of normal brain function induced by an external mechanical force, such as a direct blow to the head or a penetrating injury. It can affect both brain structure and function, producing a wide range of clinical outcomes. TBI is a heterogeneous condition, meaning its effects may differ based on the type, location, and severity of the injury.Basis of ClassificationTBI is classified based on severity, injury mechanism, or pathophysiology. In...

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Intracranial Photostimulation Relieves the Learning and Memory Impairment after Traumatic Brain Injury.

Wenlan Qi1,2, Jiyuan Hui1,2, Zhenghui He1,2

  • 1Department of Neurosurgery, Brain Injury Centre, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.

Journal of Neurotrauma
|December 26, 2025
PubMed
Summary

Photostimulation therapy improved learning and memory in severe traumatic brain injury (TBI) mice. This novel treatment enhanced neuronal energy metabolism and reduced cell death without worsening the injury.

Keywords:
learningmemoryoxidative phosphorylationphotostimulationtraumatic brain injury

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Area of Science:

  • Neuroscience
  • Biomedical Engineering

Background:

  • Traumatic brain injury (TBI) is a significant cause of long-term disability.
  • Cognitive deficits, especially in learning and memory, are common and distressing TBI consequences.

Purpose of the Study:

  • To investigate the efficacy of intracranial photostimulation (PS) therapy for cognitive impairments following severe TBI.
  • To explore the underlying mechanisms of PS in TBI recovery.

Main Methods:

  • A photostimulation device was implanted into the injured brain tissue of severe TBI mouse models.
  • Intracranial PS therapy was administered to assess its impact on cognitive function and neuronal survival.

Main Results:

  • Intracranial PS therapy significantly improved learning and memory functions in TBI mice.
  • The implantation procedure did not worsen the existing brain injury.
  • PS therapy appeared to enhance oxidative phosphorylation, improving neuronal energy metabolism and inhibiting apoptosis.

Conclusions:

  • Intracranial photostimulation is a promising therapeutic strategy for TBI-induced cognitive deficits.
  • Enhanced neuronal energy metabolism and reduced apoptosis are potential mechanisms behind PS efficacy.
  • This approach offers a novel direction for clinical TBI treatment.