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Updated: Mar 7, 2026

A Protocol for Transcranial Photobiomodulation Therapy in Mice
Published on: November 18, 2018
Treating cognitive impairment with transcranial low level laser therapy
1Department of Psychology, University of Texas at Austin, 1 University Station, Austin, TX 78712-0187, United States.
Low level laser therapy (LLLT) shows promise for preventing and treating cognitive impairment by enhancing brain cell function and neurometabolic pathways. This non-invasive approach may offer a new strategy against age-related cognitive decline and dementia.
Area of Science:
- Neuroscience
- Biomedical Engineering
- Gerontology
Background:
- Cognitive impairment in aging is linked to neuronal energy deficits and brain hypoperfusion.
- Vascular risk factors can exacerbate age-related cognitive decline.
- Low Level Laser Therapy (LLLT) has a history of use in various medical conditions.
Purpose of the Study:
- To examine the potential of transcranial LLLT using red or near-infrared wavelengths.
- To investigate LLLT's effects on brain cell function and neurometabolic pathways.
- To explore LLLT for preventing and treating cognitive impairment.
Main Methods:
- Application of red or near-infrared wavelengths transcranially.
- Utilizing LLLT to stimulate neuronal mitochondria.
- Review of existing clinical studies on LLLT and cognitive function.
Main Results:
- Recent clinical studies indicate LLLT can increase neurometabolic energy levels.
- LLLT may improve cerebral hemodynamics and cognitive abilities.
- Evidence suggests LLLT can boost neurometabolic activity.
Conclusions:
- Transcranial LLLT offers a potential non-invasive method to address age-related cognitive decline.
- This approach may help prevent or delay dementia, including Alzheimer's and vascular dementia.
- Advancements in LLLT technology signal a new era for treating neurocognitive disorders.
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