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Zorzo C, Rodríguez-Fernández L, Martínez JA, Arias JL. Photobiomodulation increases brain metabolic activity through a combination of 810 and 660 wavelengths: a comparative study in male and female rats. Lasers Med Sci 2024; 39:26. [PMID: 38214813 PMCID: PMC10786747 DOI: 10.1007/s10103-023-03966-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 12/27/2023] [Indexed: 01/13/2024]
Abstract
Photobiomodulation (PBM), an emerging and non-invasive intervention, has been shown to benefit the nervous system by modifying the mitochondrial cytochrome c-oxidase (CCO) enzyme, which has red (620-680 nm) or infrared (760-825 nm) spectral absorption peaks. The effect of a single 810-nm wavelength with a combination of 810 nm and 660 nm lights in the brain metabolic activity of male and female rats was compared. PBM, with a wavelength of 810 nm and a combination of 810 nm and 660 nm, was applied for 5 days on the prefrontal cortex. Then, brain metabolic activity in the prefrontal area, hippocampus, retrosplenial, and parietal cortex was explored. Sex differences were found in cortical and subcortical regions, indicating higher male brain oxidative metabolism, regardless of treatment. CCO activity in the cingulate and prelimbic area, dentate gyrus, retrosplenial and parietal cortex was enhanced in both treatments (810 + 660 nm and 810 nm). Moreover, using the combination of waves, CCO increased in the infralimbic area, and in CA1 and CA3 of the hippocampus. Thus, employment of a single NIR treatment or a combination of red to NIR treatment led to slight differences in CCO activity across the limbic system, suggesting that a combination of lights of the spectrum may be relevant.
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Affiliation(s)
- Candela Zorzo
- Neuroscience Laboratory, Department of Psychology, University of Oviedo, Oviedo, Spain.
- INEUROPA, Instituto de Neurociencias del Principado de Asturias, Oviedo, Spain.
- ISPA, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain.
| | - Lucía Rodríguez-Fernández
- Neuroscience Laboratory, Department of Psychology, University of Oviedo, Oviedo, Spain
- INEUROPA, Instituto de Neurociencias del Principado de Asturias, Oviedo, Spain
- ISPA, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
| | - Juan A Martínez
- ISPA, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
- Electronic Technology Area, University of Oviedo, Gijón, Spain
| | - Jorge L Arias
- Neuroscience Laboratory, Department of Psychology, University of Oviedo, Oviedo, Spain
- INEUROPA, Instituto de Neurociencias del Principado de Asturias, Oviedo, Spain
- ISPA, Instituto de Investigación Sanitaria del Principado de Asturias, Oviedo, Spain
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Lan KC, Lee CY, Kuo KY, Wang CY. The Effect of Lifting-and-Thrusting Laser Acupuncture on Electrodermal Activity of Acupoints, Pulse Characteristics, and Brainwave. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2023; 2023:7342960. [PMID: 37096203 PMCID: PMC10122585 DOI: 10.1155/2023/7342960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 12/31/2022] [Accepted: 02/13/2023] [Indexed: 04/26/2023]
Abstract
Acupuncture has been shown as an effective traditional Chinese medicine treatment method, especially for pain relief. Recently, laser acupuncture is becoming increasingly popular, thanks to its noninvasive and painless nature and effectiveness in treating diseases, proven by many studies (for example, some previous studies showed that low-power laser stimulation is able to increase the power of alpha rhythms and theta waves). In our prior work, we developed a novel laser acupuncture model that emulates lifting-and-thrusting operation commonly used in traditional needle acupuncture and showed its benefit in improving cardiac output and peripheral circulation. By extending our previous studies, in this work, we perform extensive experiments to understand the effect of such a system on electrodermal activity (EDA) of acupoints, pulse characteristics, and brainwave, to further verify its efficacy. In particular, we found that laser stimulation could cause significant changes in EDA of acupoints, pulse amplitude, pulse-rate-variability (PRV), and acupoint conductance, as a function of laser power and stimulation time. In addition, laser acupuncture with the lifting-and-thrusting operation has more significant effect on increasing the power of alpha and theta frequency bands as compared to laser acupuncture without the lifting-and-thrusting operation. Finally, given sufficient stimulation time (e.g., > 20 min), the performance of a low-powered laser acupuncture with the lifting-and-thrusting operation could be comparable to that of traditional needle acupuncture.
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Affiliation(s)
- Kun-Chan Lan
- Department of Computer Science and Information Engineering (CSIE), National Cheng Kung University, Tainan, Taiwan
| | - Chang-Yin Lee
- The School of Chinese Medicine for Post-Baccalaureate, I-Shou University, Kaohsiung, Taiwan
- Department of Chinese Medicine, E-DA Hospital, Kaohsiung, Taiwan
- Department of Chinese Medicine, E-DA Cancer Hospital, Kaohsiung, Taiwan
| | - Kai-Yuan Kuo
- Department of Computer Science and Information Engineering (CSIE), National Cheng Kung University, Tainan, Taiwan
| | - Chih-Yu Wang
- Department of Biomedical Engineering, I-Shou University, Kaohsiung, Taiwan
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Oono Y, Kono R, Kiyohara Y, Takagi S, Ide Y, Nagasaka H, Kohase H. Photobiomodulation enhanced endogenous pain modulation in healthy volunteers. Lasers Med Sci 2022; 38:16. [PMID: 36562828 PMCID: PMC9789003 DOI: 10.1007/s10103-022-03686-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 11/12/2022] [Indexed: 12/24/2022]
Abstract
To examine the effects of photobiomodulation (PBM) in healthy volunteers using photonic stimulation of acupuncture points on conditioned pain modulation (CPM), temporal summation of pain (TSP), and offset analgesia (OA), which reflect some aspects of endogenous pain modulation. We included 15 men and 15 women (age, 31.5 [27.3-37.0], body mass index, 25.7 [24.4-27.1], Fitzpatrick skin typing, II: 20, III: 8, IV: 2). CPM, TSP, and OA were evaluated after a sham procedure (control session) and after acupuncture point stimulation (LI4 and LI10 on the non-dominant forearm) using linear polarized near-infrared light irradiation (LPNILI; wavelengths peaked at approximately 1000 nm, output: 1.4 W/cm2, spot diameter: 10 mm, spot size: 1.02 cm2, maximum temperature: 40.5 °C, pulse width: 1 s, frequency: 0.2 Hz) (PBM session). Differences in CPM, TSP, and OA between the two sessions were evaluated by the paired t-test and Fisher's exact test (statistical significance: p < 0.05). Values indicate median [interquartile range]. LPNILI significantly increased CPM in all participants (control session: 12.1 [-4.5-37.4], PBM session: 23.9 [8.3-44.8], p < 0.05) and women (control session: 16.7 [-3.4-36.6], PBM session: 38.7 [24.6-52.1], p < 0.05). The CPM effect increment was significantly higher in women than in men (p = 0.0253). LPNILI decreased TSP in participants with higher TSP ratios (p = 0.0219) and increased OA in participants with lower OA scores (p = 0.0021). LPNILI enhanced endogenous pain modulation in healthy volunteers, particularly in women, as evaluated using CPM. CPM, TSP, and OA evaluations are potentially useful for discriminating PBM responders from non-responders.
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Affiliation(s)
- Yuka Oono
- Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan.
| | - Ryoko Kono
- Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan
| | - Yuki Kiyohara
- Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan
| | - Saori Takagi
- Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan
| | - Yasuo Ide
- Department of Anesthesiology, Saitama Medical University Hospital, Saitama, Japan
| | - Hiroshi Nagasaka
- Department of Anesthesiology, Saitama Medical University Hospital, Saitama, Japan
| | - Hikaru Kohase
- Division of Dental Anesthesiology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan
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McGee C, Liebert A, Herkes G, Bicknell B, Pang V, McLachlan CS, Kiat H. Protocol for randomized controlled trial to evaluate the safety and feasibility of a novel helmet to deliver transcranial light emitting diodes photobiomodulation therapy to patients with Parkinson’s disease. Front Neurosci 2022; 16:945796. [PMID: 36061601 PMCID: PMC9428720 DOI: 10.3389/fnins.2022.945796] [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: 05/16/2022] [Accepted: 07/06/2022] [Indexed: 11/15/2022] Open
Abstract
Introduction Parkinson’s disease (PD) is the second most common, progressive, and debilitating neurodegenerative disease associated with aging and the most common movement disorder. Photobiomodulation (PBM), the use of non-thermal light for therapeutic purposes using laser or light emitting diodes (LED) is an emerging non-invasive treatment for a diverse range of neurological conditions. The main objectives of this clinical trial are to investigate the feasibility, safety, tolerability, and efficacy of a novel transcranial LED helmet device (the “PDNeuro”) in the alleviation of symptoms of PD. Methods and analysis This is a 24-week, two-arm, triple-blinded randomized placebo-controlled clinical trial of a novel transcranial “PDNeuro” LED Helmet, comparing an active helmet to a sham helmet device. In a survey, 40 PD participants with Hoehn and Yahr Stage I–III during ON periods will be enrolled and randomly assigned into two groups. Both groups will be monitored weekly for the safety and tolerability of the “PDNeuro” LED Helmet. Clinical signs and symptoms assessed will include mobility, fine motor skills and cognition, with data collected at baseline, 12 weeks, and 24 weeks. Assessment tools include the TUG, UPDRS, and MoCA all validated for use in PD patients. Patient’s adherence to the device usage and participant drop out will be monitored weekly. At 12 weeks both placebo and treatment groups will crossover and placebo participants offered the treatment. The main indicator for clinical efficacy of the “PDneuro” Helmet is evidence of sustained improvements in motor and non-motor symptoms obtained from participant self-reported changes, carer reporting of changes and objective reassessment by the investigators. The outcomes will assist in a future larger randomized trial design. Clinical Trial Registration [https://www.anzctr.org.au], identifier [12621001722886].
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Affiliation(s)
- Claire McGee
- Faculty of Health Sciences, Torrens University, Sydney, NSW, Australia
| | - Ann Liebert
- School of Medical Sciences, University of Sydney, Camperdown, NSW, Australia
- Department of Research and Governance, San Hospital, Wahroonga, NSW, Australia
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW, Australia
- *Correspondence: Ann Liebert,
| | - Geoffrey Herkes
- Department of Neurology, San Hospital, Wahroonga, NSW, Australia
- Australian National University, Canberra, ACT, Australia
| | - Brian Bicknell
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW, Australia
| | - Vincent Pang
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW, Australia
| | | | - Hosen Kiat
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW, Australia
- Faculty of Medicine, Human and Health Sciences, Macquarie University, Sydney, NSW, Australia
- College of Health and Medicine, Australian National University, Canberra, ACT, Australia
- Cardiac Health Institute, Sydney, NSW, Australia
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Carroll JD. Photobiomodulation Literature Watch December 2021. Photobiomodul Photomed Laser Surg 2022. [DOI: 10.1089/photob.2022.0007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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