1
|
Zeng J, Wang C, Chai Y, Lei D, Wang Q. Can transcranial photobiomodulation improve cognitive function in TBI patients? A systematic review. Front Psychol 2024; 15:1378570. [PMID: 38952831 PMCID: PMC11215173 DOI: 10.3389/fpsyg.2024.1378570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 05/20/2024] [Indexed: 07/03/2024] Open
Abstract
Introduction Transcranial photobiomodulation (tPBM) is a non-invasive neuromodulation technology which has become a promising therapy for treating many brain diseases. Although it has been confirmed in studies targeting neurological diseases including Alzheimer's and Parkinson's that tPBM can improve cognitive function, the effectiveness of interventions targeting TBI patients remains to be determined. This systematic review examines the cognitive outcomes of clinical trials concerning tPBM in the treatment of traumatic brain injury (TBI). Methods We conducted a systematic literature review, following the PRISMA guidelines. The PubMed, Web of Science, Scopus, EMBASE, and Cochrane Library databases were searched before October 31, 2023. Results The initial search retrieved 131 articles, and a total of 6 studies were finally included for full text-analysis after applying inclusion and exclusion criteria. Conclusion Results showed improvements in cognition for patients with chronic TBI after tPBM intervention. The mechanism may be that tPBM increases the volume of total cortical gray matter (GM), subcortical GM, and thalamic, improves cerebral blood flow (CBF), functional connectivity (FC), and cerebral oxygenation, improving brain function. However, due to the significant heterogeneity in application, we cannot summarize the optimal parameters for tPBM treatment of TBI. In addition, there is currently a lack of RCT studies in this field. Therefore, given this encouraging but uncertain finding, it is necessary to conduct randomized controlled clinical trials to further determine the role of tPBM in cognitive rehabilitation of TBI patients.
Collapse
Affiliation(s)
- Jia Zeng
- School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, China
| | - Chen Wang
- School of Kinesiology and Health, Capital University of Physical Education and Sports, Beijing, China
| | - Yuan Chai
- Xinyang Central Hospital, Xinyang, China
| | - Danyun Lei
- Department of Physical Education, Xinyang University, Xinyang, China
| | - Qiuli Wang
- Independent Researcher, Xinyang, Henan Province, China
| |
Collapse
|
2
|
Françon A, Delaunay K, Jaworski T, Lebon C, Picard E, Youale J, Behar-Cohen F, Torriglia A. Phototoxicity of low doses of light and influence of the spectral composition on human RPE cells. Sci Rep 2024; 14:6839. [PMID: 38514646 PMCID: PMC10957882 DOI: 10.1038/s41598-024-56980-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/13/2024] [Indexed: 03/23/2024] Open
Abstract
Light is known to induce retinal damage affecting photoreceptors and retinal pigment epithelium. For polychromatic light, the blue part of the spectrum is thought to be the only responsible for photochemical damage, leading to the establishment of a phototoxicity threshold for blue light (445 nm). For humans it corresponds to a retinal dose of 22 J/cm2. Recent studies on rodents and non-human primates suggested that this value is overestimated. In this study, we aim at investigating the relevance of the current phototoxicity threshold and at providing new hints on the role of the different components of the white light spectrum on phototoxicity. We use an in vitro model of human induced pluripotent stem cells (hiPSC)-derived retinal pigment epithelial (iRPE) cells and exposed them to white, blue and red lights from LED devices at doses below 22 J/cm2. We show that exposure to white light at a dose of 3.6 J/cm2 induces an alteration of the global cellular structure, DNA damage and an activation of cellular stress pathways. The exposure to blue light triggers DNA damage and the activation of autophagy, while exposure to red light modulates the inflammatory response and inhibits autophagy.
Collapse
Affiliation(s)
- Anaïs Françon
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Kimberley Delaunay
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Thara Jaworski
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Cécile Lebon
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Emilie Picard
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Jenny Youale
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
| | - Francine Behar-Cohen
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France
- Assistance Publique, Hôpitaux de Paris, Hôpital Cochin, Ophtalmopole, 27, Rue du Faubourg Saint-Jacques, 75014, Paris, France
- Department of Ophthalmology, Hôpital Foch, 40 Rue Worth, 92150, Suresnes, France
| | - Alicia Torriglia
- Centre de Recherche Des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations, 15, Rue de L'école de Médecine, 75006, Paris, France.
| |
Collapse
|
3
|
Lim L. Traumatic Brain Injury Recovery with Photobiomodulation: Cellular Mechanisms, Clinical Evidence, and Future Potential. Cells 2024; 13:385. [PMID: 38474349 DOI: 10.3390/cells13050385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 02/18/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Traumatic Brain Injury (TBI) remains a significant global health challenge, lacking effective pharmacological treatments. This shortcoming is attributed to TBI's heterogeneous and complex pathophysiology, which includes axonal damage, mitochondrial dysfunction, oxidative stress, and persistent neuroinflammation. The objective of this study is to analyze transcranial photobiomodulation (PBM), which employs specific red to near-infrared light wavelengths to modulate brain functions, as a promising therapy to address TBI's complex pathophysiology in a single intervention. This study reviews the feasibility of this therapy, firstly by synthesizing PBM's cellular mechanisms with each identified TBI's pathophysiological aspect. The outcomes in human clinical studies are then reviewed. The findings support PBM's potential for treating TBI, notwithstanding variations in parameters such as wavelength, power density, dose, light source positioning, and pulse frequencies. Emerging data indicate that each of these parameters plays a role in the outcomes. Additionally, new research into PBM's effects on the electrical properties and polymerization dynamics of neuronal microstructures, like microtubules and tubulins, provides insights for future parameter optimization. In summary, transcranial PBM represents a multifaceted therapeutic intervention for TBI with vast potential which may be fulfilled by optimizing the parameters. Future research should investigate optimizing these parameters, which is possible by incorporating artificial intelligence.
Collapse
Affiliation(s)
- Lew Lim
- Vielight Inc., Toronto, ON M4Y 2G8, Canada
| |
Collapse
|
4
|
Cervera-Sánchez Z, Cacho-Martínez P, García-Muñoz Á. Efficacy of optometric phototherapy: a systematic review. JOURNAL OF OPTOMETRY 2023; 16:305-314. [PMID: 37230932 PMCID: PMC10518764 DOI: 10.1016/j.optom.2023.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/14/2023] [Accepted: 03/21/2023] [Indexed: 05/27/2023]
Abstract
PURPOSE To analyse the scientific evidence about the efficacy of Syntonic phototherapy for producing changes in visual function. MATERIAL AND METHODS A systematic review was performed to obtain studies on the effects of Syntonic phototherapy on vision. A search in health science databases (Medline, Scopus, Web of Science and PsycINFO) for studies published between 1980 and 2022 was conducted in accordance with the principles of Cochrane approach. The search identified 197 articles. Only clinical studies which used the Syntonic phototherapy as a vision therapy for any visual condition were included. Clinical cases and case series were excluded. Following the inclusion criteria, 8 clinical studies met inclusion, 5 of them being pseudo-experimental studies with an equivalent control group and 3 pre-post pseudo-experimental studies. GRADE tool was used to assess the certainty of the evidence of the studies. The GRADE evidence profile for the studies through the Soft table was made to analyse data. RESULTS The studies analysed seven outcomes: visual symptoms, functional visual fields, visual acuity, contrast sensitivity, deviation (phoria/tropia), stereopsis and reading abilities. Finding table about results (Soft Table) showed that for all outcomes reviewed, all studies yielded very low certainty of evidence. Results revealed a lack of scientific evidence of the efficacy of Syntonic optometric phototherapy to produce changes in the visual function. CONCLUSION This systematic review found no consistent evidence for the efficacy of Syntonic phototherapy to cause changes in visual function. There is no scientific evidence to support its clinical use for treating any type of visual anomalies.
Collapse
Affiliation(s)
- Zaíra Cervera-Sánchez
- Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Alicante, Spain
| | - Pilar Cacho-Martínez
- Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Alicante, Spain.
| | - Ángel García-Muñoz
- Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Alicante, Spain
| |
Collapse
|
5
|
Carroll JD. Photobiomodulation Literature Watch February 2023. Photobiomodul Photomed Laser Surg 2023; 41:371-375. [PMID: 37459610 DOI: 10.1089/photob.2023.0097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023] Open
|
6
|
Bicknell B, Liebert A, Borody T, Herkes G, McLachlan C, Kiat H. Neurodegenerative and Neurodevelopmental Diseases and the Gut-Brain Axis: The Potential of Therapeutic Targeting of the Microbiome. Int J Mol Sci 2023; 24:9577. [PMID: 37298527 PMCID: PMC10253993 DOI: 10.3390/ijms24119577] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 04/28/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
The human gut microbiome contains the largest number of bacteria in the body and has the potential to greatly influence metabolism, not only locally but also systemically. There is an established link between a healthy, balanced, and diverse microbiome and overall health. When the gut microbiome becomes unbalanced (dysbiosis) through dietary changes, medication use, lifestyle choices, environmental factors, and ageing, this has a profound effect on our health and is linked to many diseases, including lifestyle diseases, metabolic diseases, inflammatory diseases, and neurological diseases. While this link in humans is largely an association of dysbiosis with disease, in animal models, a causative link can be demonstrated. The link between the gut and the brain is particularly important in maintaining brain health, with a strong association between dysbiosis in the gut and neurodegenerative and neurodevelopmental diseases. This link suggests not only that the gut microbiota composition can be used to make an early diagnosis of neurodegenerative and neurodevelopmental diseases but also that modifying the gut microbiome to influence the microbiome-gut-brain axis might present a therapeutic target for diseases that have proved intractable, with the aim of altering the trajectory of neurodegenerative and neurodevelopmental diseases such as Alzheimer's disease, Parkinson's disease, multiple sclerosis, autism spectrum disorder, and attention-deficit hyperactivity disorder, among others. There is also a microbiome-gut-brain link to other potentially reversible neurological diseases, such as migraine, post-operative cognitive dysfunction, and long COVID, which might be considered models of therapy for neurodegenerative disease. The role of traditional methods in altering the microbiome, as well as newer, more novel treatments such as faecal microbiome transplants and photobiomodulation, are discussed.
Collapse
Affiliation(s)
- Brian Bicknell
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia; (A.L.); (H.K.)
| | - Ann Liebert
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia; (A.L.); (H.K.)
- Faculty of Medicine and Health, University of Sydney, Camperdown, NSW 2006, Australia
- Department of Governance and Research, Sydney Adventist Hospital, Wahroonga, NSW 2076, Australia;
| | - Thomas Borody
- Centre for Digestive Diseases, Five Dock, NSW 2046, Australia;
| | - Geoffrey Herkes
- Department of Governance and Research, Sydney Adventist Hospital, Wahroonga, NSW 2076, Australia;
| | - Craig McLachlan
- Centre for Healthy Futures, Torrens University Australia, Ultimo, NSW 2007, Australia;
| | - Hosen Kiat
- NICM Health Research Institute, University of Western Sydney, Westmead, NSW 2145, Australia; (A.L.); (H.K.)
- Centre for Healthy Futures, Torrens University Australia, Ultimo, NSW 2007, Australia;
- Macquarie Medical School, Macquarie University, Macquarie Park, NSW 2109, Australia
- ANU College of Health and Medicine, Australian National University, Canberra, ACT 2601, Australia
| |
Collapse
|
7
|
Proceedings of the 2022 British Neurosurgical Research Group Meeting. Br J Neurosurg 2022. [DOI: 10.1080/02688697.2022.2157943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|