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Buendía D, Guncay T, Oyanedel M, Lemus M, Weinstein A, Ardiles ÁO, Marcos J, Fernandes A, Zângaro R, Muñoz P. The Transcranial Light Therapy Improves Synaptic Plasticity in the Alzheimer’s Disease Mouse Model. Brain Sci 2022; 12:brainsci12101272. [PMID: 36291206 PMCID: PMC9599908 DOI: 10.3390/brainsci12101272] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/10/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer’s disease (AD) is the main cause of dementia worldwide. Emerging non-invasive treatments such as photobiomodulation target the mitochondria to minimize brain damage, improving cognitive functions. In this work, an experimental design was carried out to evaluate the effect of transcranial light therapy (TLTC) on synaptic plasticity (SP) and cognitive functions in an AD animal model. Twenty-three mice were separated into two general groups: an APP/PS1 (ALZ) transgenic group and a wild-type (WT) group. Each group was randomly subdivided into two subgroups: mice with and without TLTC, depending on whether they would undergo treatment with TLTC. Cognitive function, measured through an object recognition task, showed non-significant improvement after TLTC. SP, on the other hand, was evaluated using four electrophysiological parameters from the Schaffer-CA1 collateral hippocampal synapses: excitatory field potentials (fEPSP), paired pulse facilitation (PPF), long-term depression (LTD), and long-term potentiation (LTP). An improvement was observed in subjects treated with TLTC, showing higher levels of LTP than those transgenic mice that were not exposed to the treatment. Therefore, the results obtained in this work showed that TLTC could be an efficient non-invasive treatment for AD-associated SP deficits.
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Affiliation(s)
- Débora Buendía
- Programa de Engenharia Biomédica, Instituto de Engenharia Biomédica, Universidade Anhembi Morumbi—UAM, Rua Casa do Ator, 294, Sao Paulo 04546-001, Brazil
- Escuela de Ingeniería Civil Biomédica, Facultad de Ingeniería, Universidad de Valparaíso, General Cruz 222, Valparaíso 2362905, Chile
- Centro de Neurología Traslacional, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2341386, Chile
- Centro de Inovação, Tecnología e Educação—CITÉ, Parque Tecnológico de São José dos Campos, Estrada Dr. Altino Bondesan 500, São José dos Campos 12247-016, Brazil
| | - Tatiana Guncay
- Centro de Neurología Traslacional, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2341386, Chile
| | - Macarena Oyanedel
- Escuela de Ingeniería Civil Biomédica, Facultad de Ingeniería, Universidad de Valparaíso, General Cruz 222, Valparaíso 2362905, Chile
| | - Makarena Lemus
- Escuela de Ingeniería Civil Biomédica, Facultad de Ingeniería, Universidad de Valparaíso, General Cruz 222, Valparaíso 2362905, Chile
| | - Alejandro Weinstein
- Escuela de Ingeniería Civil Biomédica, Facultad de Ingeniería, Universidad de Valparaíso, General Cruz 222, Valparaíso 2362905, Chile
| | - Álvaro O. Ardiles
- Centro de Neurología Traslacional, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2341386, Chile
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
- Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Viña del Mar 2540064, Chile
| | - José Marcos
- Centro de Neurología Traslacional, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2341386, Chile
- Escuela de Ciencias Agrícolas y Veterinarias, Universidad Viña del Mar, Viña del Mar 2572007, Chile
| | - Adriana Fernandes
- Programa de Engenharia Biomédica, Instituto de Engenharia Biomédica, Universidade Anhembi Morumbi—UAM, Rua Casa do Ator, 294, Sao Paulo 04546-001, Brazil
- Centro de Inovação, Tecnología e Educação—CITÉ, Parque Tecnológico de São José dos Campos, Estrada Dr. Altino Bondesan 500, São José dos Campos 12247-016, Brazil
| | - Renato Zângaro
- Programa de Engenharia Biomédica, Instituto de Engenharia Biomédica, Universidade Anhembi Morumbi—UAM, Rua Casa do Ator, 294, Sao Paulo 04546-001, Brazil
- Centro de Inovação, Tecnología e Educação—CITÉ, Parque Tecnológico de São José dos Campos, Estrada Dr. Altino Bondesan 500, São José dos Campos 12247-016, Brazil
- Correspondence: (R.Z.); (P.M.); Tel.: +55-12-997830843 (R.Z.); +56-969028160 (P.M.)
| | - Pablo Muñoz
- Centro de Neurología Traslacional, Facultad de Medicina, Universidad de Valparaíso, Valparaíso 2341386, Chile
- Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Viña del Mar 2540064, Chile
- Centro de Investigaciones Biomédicas, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Viña del Mar 2540064, Chile
- Correspondence: (R.Z.); (P.M.); Tel.: +55-12-997830843 (R.Z.); +56-969028160 (P.M.)
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Belova AN, Israelyan YA, Sushin VO, Shabanova MA, Rezenova AM. [Transcranial photobiomodulation in therapy of neurodegenerative diseases of the brain: theoretical background and clinical effectiveness]. VOPROSY KURORTOLOGII, FIZIOTERAPII, I LECHEBNOI FIZICHESKOI KULTURY 2022; 98:61-67. [PMID: 34965698 DOI: 10.17116/kurort20219806161] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Transcranial photobiomodulation (tPBM) is a form of light therapy that uses monochromatic visible and infrared light from non-ionizing radiation sources (lasers, LEDs) placed on the scalp, forehead, or intranasally to project light directly to target areas of the brain. Accumulated experimental and clinical data indicate the safety and potential efficacy of tPBM in some central nervous system diseases.This article briefly reviews the general concepts of tPBM, the results of experimental and clinical studies on the efficacy of tPBM in Alzheimer's disease, Parkinson's disease, and brain stroke. The possible mechanisms of the tPBM therapeutic effect and the need to choose optimal exposure parameters are discussed. Although the evidence base regarding the efficacy of tPBM in neurodegenerative and vascular brain diseases is still insufficient, analysis of the published data justifies considering tPBM as a promising method of adjuvant therapy for some central nervous system diseases.
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Affiliation(s)
- A N Belova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - Yu A Israelyan
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - V O Sushin
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - M A Shabanova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
| | - A M Rezenova
- Privolzhsky Research Medical University, Nizhny Novgorod, Russia
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Baik JS, Lee TY, Kim NG, Pak K, Ko SH, Min JH, Shin YI. Effects of Photobiomodulation on Changes in Cognitive Function and Regional Cerebral Blood Flow in Patients with Mild Cognitive Impairment: A Pilot Uncontrolled Trial. J Alzheimers Dis 2021; 83:1513-1519. [PMID: 34420956 DOI: 10.3233/jad-210386] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Photobiomodulation (PBM) affects local blood flow regulation through nitric oxide generation, and various studies have reported on its effect on improving cognitive function in neurodegenerative diseases. However, the effect of PBM in the areas of the vertebral arteries (VA) and internal carotid arteries (ICA), which are the major blood-supplying arteries to the brain, has not been previously investigated. OBJECTIVE We aimed to determine whether irradiating PBM in the areas of the VA and ICA, which are the major blood-supplying arteries to the brain, improved regional cerebral blood flow (rCBF) and cognitive function. METHODS Fourteen patients with mild cognitive impairments were treated with PBM. Cognitive assessment and single-photon emission computed tomography were implemented at the baseline and at the end of PBM. RESULTS Regarding rCBF, statistically significant trends were found in the medial prefrontal cortex, lateral prefrontal cortex, anterior cingulate cortex, and occipital lateral cortex. Based on the cognitive assessments, statistically significant trends were found in overall cognitive function, memory, and frontal/executive function. CONCLUSION We confirmed the possibility that PBM treatment in the VA and ICA areas could positively affect cognitive function by increasing rCBF. A study with a larger sample size is needed to validate the potential of PBM.
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Affiliation(s)
- Ji Soo Baik
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Tae Young Lee
- Department of Psychiatry, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Nam Gyun Kim
- Medical Research Center of Color Seven. Seoul, Republic of Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Sung-Hwa Ko
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Ji Hong Min
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Yong-Il Shin
- Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea.,Department of Rehabilitation Medicine & Institute of Medical Science, Pusan National University School of Medicine, Busan, Republic of Korea
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