Shining light on the head: Photobiomodulation for brain disorders

Area of Science:

• Neuroscience
• Biomedical Engineering
• Photomedicine

Background:

• The brain is susceptible to traumatic, degenerative, and psychiatric disorders.
• Optimal brain function is crucial for overall health and well-being.
• Existing treatments for brain disorders have limitations.

Approach:

• Photobiomodulation (PBM) utilizes red or near-infrared light to promote tissue healing and regeneration.
• Transcranial PBM (tPBM) applies light to the head, often the forehead, for improved brain penetration.
• Advancements in LED technology have led to accessible tPBM devices like 'brain caps'.

Key Points:

• PBM mechanisms of action in the brain are being investigated.
• Pre-clinical studies demonstrate tPBM's potential benefits for various neurological conditions.
• Clinical trials are exploring tPBM for stroke, traumatic brain injury, Alzheimer's, Parkinson's, and depression.

Conclusions:

• tPBM offers a novel therapeutic strategy for a range of brain disorders.
• The potential for cognitive enhancement in healthy individuals is also being explored.
• Further research is needed to optimize tPBM protocols and confirm clinical efficacy.