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Garcia PC, Meireles DP, Tassinary JAF, Pavani C. Combining red photobiomodulation therapy with polydioxanone threads for wrinkle reduction in the glabella region: A randomized, controlled, double-blind clinical trial. JOURNAL OF BIOPHOTONICS 2024:e202400139. [PMID: 38934100 DOI: 10.1002/jbio.202400139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 06/28/2024]
Abstract
The combination of polydioxanone (PDO) threads with other technologies has garnered significant interest for rejuvenation purposes. Photobiomodulation (PBM) has the potential to improve patient comfort and recovery after minimally invasive rejuvenation protocols and also contribute to the overall efficacy of these procedures, fostering an integrative approach to cutaneous rejuvenation. The objective os this work was to investigate concurrent application of PDO threads and red LED PBM on glabellar static wrinkles, in a parallel randomized sham-controlled trial. Forty individuals with Glogau aging classification levels 3 and 4, static glabellar wrinkles, and no significant comorbidities received PDO threads applied along glabellar line. Effective PBM group received 1.35 J and 630 nm red LED light punctually along threads, twice weekly for nine sessions over 30 days. The outcome measures were swelling assessment, dermal thickness and PDO thread degradation via linear ultrasound. No swelling was detected 24 h post-PDO thread application, hindering PBM effect assessment. PDO threads induced dermal thickening; no added effect with PBM. No significant difference in thread hydrolysis between groups, though some ultrasound records inconclusive on thread presence. The absence of swelling may stem from various factors, including the timing of post-procedure swelling assessment, operator proficiency in thread application, and procedural characteristics. No evidence supports the notion that PBM augments dermal thickening, however other light parameters should be studied. Insufficient data to demonstrate PBM's effectiveness in controlling post-procedure swelling. Combination of PBM with PDO thread application doesn't enhance dermal thickening, nor accelerate thread degradation at the parameters used here.
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Affiliation(s)
- Paula Caroline Garcia
- Postgraduate Program in Biophotonics Medicine, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
| | | | | | - Christiane Pavani
- Postgraduate Program in Biophotonics Medicine, Universidade Nove de Julho, UNINOVE, São Paulo, Brazil
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Fu Q, Yang J, Jiang H, Lin S, Qin H, Zhao J, Wang Y, Liu M. Effect of photobiomodulation on alleviating primary dysmenorrhea caused by PGF 2α. JOURNAL OF BIOPHOTONICS 2024; 17:e202300448. [PMID: 38348528 DOI: 10.1002/jbio.202300448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/22/2024] [Accepted: 01/24/2024] [Indexed: 05/04/2024]
Abstract
Photobiomodulation (PBM) has attracted widespread attention in suppressing various pain and inflammation. Primary dysmenorrhea (PD) primarily occurs in adolescents and adult females, and the limited effectiveness and side effects of conventional treatments have highlighted the urgent need to develop and identify new adjunct therapeutic strategies. In this work, the results of pain and PGs demonstrated that 850 nm, 630 nm, and 460 nm all exhibited pain inhibition, decreased PGF2α and upregulated PGE2, while 630 nm PBM has better effectiveness. Then to explore the underlying biological mechanisms of red light PBM on PD, we irradiated prostaglandin-F2α induced HUSM cells and found that low-level irradiance can restore intracellular calcium ion, ROS, ATP, and MMP levels to normal levels. And, red light enhanced cell viability and promoted cell proliferation for normal HUSM cells. Therefore, this study proposes that red light PBM may be a promising approach for the future clinical treatment of PD.
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Affiliation(s)
- Qiqi Fu
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Jiali Yang
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Hui Jiang
- Academy for Engineering and Technology, Fudan University, Shanghai, China
| | - Shangfei Lin
- Academy for Engineering and Technology, Fudan University, Shanghai, China
| | - Haokuan Qin
- Academy for Engineering and Technology, Fudan University, Shanghai, China
| | - Jie Zhao
- School of Information Science and Technology, Fudan University, Shanghai, China
| | - Yanqing Wang
- School of Basic Medical Science, Fudan University, Shanghai, China
| | - Muqing Liu
- School of Information Science and Technology, Fudan University, Shanghai, China
- Zhongshan Fudan Joint Innovation Center, Zhongshan, Guangdong Province, China
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Hernández-Bule ML, Naharro-Rodríguez J, Bacci S, Fernández-Guarino M. Unlocking the Power of Light on the Skin: A Comprehensive Review on Photobiomodulation. Int J Mol Sci 2024; 25:4483. [PMID: 38674067 PMCID: PMC11049838 DOI: 10.3390/ijms25084483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Photobiomodulation (PBM) is a procedure that uses light to modulate cellular functions and biological processes. Over the past decades, PBM has gained considerable attention for its potential in various medical applications due to its non-invasive nature and minimal side effects. We conducted a narrative review including articles about photobiomodulation, LED light therapy or low-level laser therapy and their applications on dermatology published over the last 6 years, encompassing research studies, clinical trials, and technological developments. This review highlights the mechanisms of action underlying PBM, including the interaction with cellular chromophores and the activation of intracellular signaling pathways. The evidence from clinical trials and experimental studies to evaluate the efficacy of PBM in clinical practice is summarized with a special emphasis on dermatology. Furthermore, advancements in PBM technology, such as novel light sources and treatment protocols, are discussed in the context of optimizing therapeutic outcomes and improving patient care. This narrative review underscores the promising role of PBM as a non-invasive therapeutic approach with broad clinical applicability. Despite the need for further research to develop standard protocols, PBM holds great potential for addressing a wide range of medical conditions and enhancing patient outcomes in modern healthcare practice.
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Affiliation(s)
| | | | - Stefano Bacci
- Research Unit of Histology and Embriology, Department of Biology, University of Florence, 50139 Florence, Italy;
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Galache TR, Sena MM, Tassinary JAF, Pavani C. Photobiomodulation for melasma treatment: Integrative review and state of the art. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12935. [PMID: 38018017 DOI: 10.1111/phpp.12935] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 10/06/2023] [Accepted: 11/14/2023] [Indexed: 11/30/2023]
Abstract
PURPOSE Photobiomodulation therapy (PBM) is a versatile technique for treating skin diseases. Melasma, a chronic hyperpigmentation condition, has recently been associated with vascular features and dermal photoaging and poses significant management challenges. We review the recent literature on melasma etiology and the evidence supporting PBM as a therapeutic modality for melasma treatment. METHODS We conducted a comprehensive literature search in three different databases from May to August 2023, focusing on studies published in the past 10 years. The inclusion criteria comprised full-text studies investigating low-power lasers and/or light-emitting diodes (LEDs) in in vitro or in vivo models, as well as clinical trials. We excluded studies discussing alternative melasma therapies or lacking experimental data. We identified additional studies by searching the reference lists of the selected articles. RESULTS We identified nine relevant studies. Clinical studies, in agreement with in vitro experiments and animal models, suggest that PBM effectively reduces melasma-associated hyperpigmentation. Specific wavelengths (red: 630 nm; amber: 585 and 590 nm; infrared: 830 and 850 nm) at radiant exposures between 1 and 20 J/cm2 exert modulatory effects on tyrosinase activity, gene expression, and protein synthesis of melanocytic pathway components, and thus significantly reduce the melanin content. Additionally, PBM is effective in improving the dermal structure and reducing erythema and neovascularization, features recently identified as pathological components of melasma. CONCLUSION PBM emerges as a promising, contemporary, and non-invasive procedure for treating melasma. Beyond its role in inhibiting melanogenesis, PBM shows potential in reducing erythema and vascularization and improving dermal conditions. However, robust and well-designed clinical trials are needed to determine optimal light parameters and to evaluate the effects of PBM on melasma thoroughly.
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Affiliation(s)
- Thais Rodrigues Galache
- Postgraduate Program in Biophotonics Medicine, Universidade Nove de Julho, UNINOVE, São Paulo, SP, Brazil
| | - Michelle Mota Sena
- Postgraduate Program in Biophotonics Medicine, Universidade Nove de Julho, UNINOVE, São Paulo, SP, Brazil
| | | | - Christiane Pavani
- Postgraduate Program in Biophotonics Medicine, Universidade Nove de Julho, UNINOVE, São Paulo, SP, Brazil
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Rotunjanu S, Racoviceanu R, Mioc A, Milan A, Negrea-Ghiulai R, Mioc M, Marangoci NL, Şoica C. Newly Synthesized CoFe 2-xDy xO 4 (x = 0; 0.1; 0.2; 0.4) Nanoparticles Reveal Promising Anticancer Activity against Melanoma (A375) and Breast Cancer (MCF-7) Cells. Int J Mol Sci 2023; 24:15733. [PMID: 37958717 PMCID: PMC10650938 DOI: 10.3390/ijms242115733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/17/2023] [Accepted: 10/27/2023] [Indexed: 11/15/2023] Open
Abstract
The current study focuses on the synthesis via combustion of dysprosium-doped cobalt ferrites that were subsequently physicochemically analyzed in terms of morphological and magnetic properties. Three types of doped nanoparticles were prepared containing different Dy substitutions and coated with HPGCD for higher dispersion properties and biocompatibility, and were later submitted to biological tests in order to reveal their potential anticancer utility. Experimental data obtained through FTIR, XRD, SEM and TEM confirmed the inclusion of Dy3+ ions in the nanoparticles' structure. The size of the newly formed nanoparticles ranged between 20 and 50 nm revealing an inverse proportional relationship with the Dy content. Magnetic studies conducted by VSM indicated a decrease in remanent and saturation mass magnetization, respectively, in Dy-doped nanoparticles in a direct proportionality with the Dy content; the decrease was further amplified by cyclodextrin complexation. Biological assessment in the presence/absence of red light revealed a significant cytotoxic activity in melanoma (A375) and breast (MCF-7) cancer cells, while healthy keratinocytes (HaCaT) remained generally unaffected, thus revealing adequate selectivity. The investigation of the underlying cytotoxic molecular mechanism revealed an apoptotic process as indicated by nuclear fragmentation and shrinkage, as well as by Western blot analysis of caspase 9, p53 and cyclin D1 proteins. The anticancer activity for all doped Co ferrites varied was in a direct correlation to their Dy content but without being affected by the red light irradiation.
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Affiliation(s)
- Slaviţa Rotunjanu
- Department of Pharmacology-Pharmacotherapy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (S.R.); (A.M.); (R.N.-G.); (C.Ş.)
| | - Roxana Racoviceanu
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timişoara, Romania; (A.M.); (M.M.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Alexandra Mioc
- Department of Pharmacology-Pharmacotherapy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (S.R.); (A.M.); (R.N.-G.); (C.Ş.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Andreea Milan
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timişoara, Romania; (A.M.); (M.M.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Roxana Negrea-Ghiulai
- Department of Pharmacology-Pharmacotherapy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (S.R.); (A.M.); (R.N.-G.); (C.Ş.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Marius Mioc
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timişoara, Romania; (A.M.); (M.M.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
| | - Narcisa Laura Marangoci
- Petru Poni Institute of Macromolecular Chemistry, 41A Aleea Gr. Ghica Vodă, 700487 Iaşi, Romania;
| | - Codruţa Şoica
- Department of Pharmacology-Pharmacotherapy, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania; (S.R.); (A.M.); (R.N.-G.); (C.Ş.)
- Research Centre for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, Eftimie Murgu Square No. 2, 300041 Timisoara, Romania
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Raza S, Thiruchelvam D, Redelmeier DA. Costs for Long-Term Health Care After a Police Shooting in Ontario, Canada. JAMA Netw Open 2023; 6:e2335831. [PMID: 37768661 PMCID: PMC10539992 DOI: 10.1001/jamanetworkopen.2023.35831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Importance Police shootings can cause serious acute injury, and knowledge of subsequent health outcomes may inform interventions to improve care. Objective To analyze long-term health care costs among survivors of police shootings compared with those surviving nonfirearm police enforcement injuries using a retrospective design. Design, Setting, and Participants This population-based cohort analysis identified adults (age ≥16 years) who were injured by police and required emergency medical care between April 1, 2002, and March 31, 2022, in Ontario, Canada. Exposure Police shootings compared with other mechanisms of injury involving police. Main Outcomes and Measures Long-term health care costs determined using a validated costing algorithm. Secondary outcomes included short-term mortality, acute care treatments, and rates of subsequent disability. Results Over the study, 13 545 adults were injured from police enforcement (mean [SD] age, 35 [12] years; 11 637 males [86%]). A total of 13 520 individuals survived acute injury, and 8755 had long-term financial data available (88 surviving firearm injury, 8667 surviving nonfirearm injury). Patients surviving firearm injury had 3 times greater health care costs per year (CAD$16 223 vs CAD$5412; mean increase, CAD$9967; 95% CI, 6697-13 237; US $11 982 vs US $3997; mean increase, US $7361; 95% CI, 4946-9776; P < .001). Greater costs after a firearm injury were not explained by baseline costs and primarily reflected increased psychiatric care. Other characteristics associated with increased long-term health care costs included prior mental illness and a substance use diagnosis. Conclusions and Relevance In this longitudinal cohort study of long-term health care costs, patients surviving a police shooting had substantial health care costs compared with those injured from other forms of police enforcement. Costs primarily reflected psychiatric care and suggest the need to prioritize early recognition and prevention.
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Affiliation(s)
- Sheharyar Raza
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Deva Thiruchelvam
- Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Institute of Clinical Evaluative Sciences (ICES) in Ontario, Ontario, Canada
| | - Donald A. Redelmeier
- Department of Medicine, University of Toronto, Toronto, Ontario, Canada
- Evaluative Clinical Sciences, Sunnybrook Research Institute, Toronto, Ontario, Canada
- Institute of Clinical Evaluative Sciences (ICES) in Ontario, Ontario, Canada
- Institute for Health Policy Management and Evaluation, Ontario, Canada
- Division of General Internal Medicine, University of Toronto, Toronto, Ontario, Canada
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Couturaud V, Le Fur M, Pelletier M, Granotier F. Reverse skin aging signs by red light photobiomodulation. Skin Res Technol 2023; 29:e13391. [PMID: 37522497 PMCID: PMC10311288 DOI: 10.1111/srt.13391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 05/25/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Photobiomodulation is a process by which the absorption of red light energy produces a series of physiological effects at the cellular level such as the enhancement of mitochondrial Adenosine Triphosphate (ATP) production, cell signaling and growth factor synthesis, and the reduction of oxidative stress. Light emitting diodes (LEDs) photobiomodulation is an increasingly popular therapy for treating skin problems, especially for reversing the signs of skin aging. OBJECTIVE The objective of this study is to demonstrate the effectiveness of a photobiomodulation treatment using red LEDs on the facial skin at a rate of two sessions per week for 3 months. The LED mask used is the Skin Light Dior x Lucibel mask diffusing a cold red light with a wavelength of 630 ± 10 nm and a power of 15.6 J/cm2 for a duration of 12 min. METHOD In order to demonstrate the effectiveness of the mask in reversing the signs of skin aging, a clinical study was conducted on 20 healthy Caucasian women: the antiwrinkle effect by measuring the depth of the crow's feet wrinkle, the relaxation of the oval of the face by clinical scoring, the firmness and elasticity of the skin by cutometric measurement, the density of the dermis by ultrasound analysis, the smoothness of the skin by measuring the roughness at the cheek, the homogeneity of the complexion by chromametric measurement, the diameter of the pores by macrophotographs and finally the sebo-regulating effect by measurement of the rate of sebum and quantification of the number of pores containing porphyrin in the subjects presenting a mixed to oily skin. The satisfaction of the volunteers was also evaluated at the end of the study via a self-questionnaire. RESULTS The efficacy results measured after 1, 2, and 3 months of use are progressive and confirm the interest of LED photobiomodulation to reverse the visible signs of skin aging. All the volunteers observed an overall improvement in skin quality. CONCLUSION All the results observed confirm the interest of using photobiomodulation to reverse the visible signs of aging. These results last for up to 1 month after stopping the use of the mask, which is a sign of lasting structural and functional rejuvenation of the skin.
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Affiliation(s)
- Virginie Couturaud
- Department of Scientific CommunicationParfum Christian DiorNeuilly sur SeineFrance
| | - Marie Le Fur
- Department of Scientific CommunicationParfum Christian DiorNeuilly sur SeineFrance
| | - Michele Pelletier
- Dermatologist and President of the European LED AcademyLa FarledeFrance
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Mota LR, Duarte IDS, Galache TR, Pretti KMDS, Neto OC, Motta LJ, Horliana ACRT, Silva DDFTD, Pavani C. Photobiomodulation Reduces Periocular Wrinkle Volume by 30%: A Randomized Controlled Trial. Photobiomodul Photomed Laser Surg 2023; 41:48-56. [PMID: 36780572 DOI: 10.1089/photob.2022.0114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Objective: This study aimed to evaluate red and amber light-emitting diode protocols for facial rejuvenation at the same light dose. Background: The demand for minimally invasive cosmetic procedures to address skin aging has grown throughout the world. In vitro red and amber photobiomodulation (PBM) has been shown to improve collagen synthesis. Meanwhile, red PBM has already been studied in clinical trials; however, a comparison of the use of different wavelengths at the same light dose to reduce periocular wrinkles has not yet been performed. Methods: This split-face, randomized clinical trial recruited 137 women (40-65 years old) presenting with skin phototypes II-IV and Glogau photoaging scale types II-IV. The individuals received 10 sessions for 4 weeks of red (660 nm) and amber (590 nm) PBM (3.8 J/cm2), one at each side of the face. The outcomes, measured before and after the treatments, were the periocular wrinkle volume measured by VisioFace® RD equipment; hydration measured by the Corneometer CM 825; skin elasticity measured by the Cutometer Dual MPA 580; and quality of life determined by adapted versions of validated questionnaires [Melasma Quality of Life Scale-Brazilian Portuguese (MelasQoL-BP) and Skindex-29]. Results: There was a significant reduction in wrinkle volume after red (31.6%) and amber (29.9%) PBM. None of the treatments improved skin hydration and viscoelasticity. Both questionnaires showed improvements in participants' quality of life. Conclusions: PBM, both at red and amber wavelengths, is an effective tool for rejuvenation, producing a 30% wrinkle volume reduction. The technique has strong potential in patients with diabetes or those presenting with keloids, conditions for which highly inflammatory rejuvenating procedures are not indicated. Clinical trial registration number: REBEC-6YFCBM.
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Affiliation(s)
- Lidiane Rocha Mota
- Biophotonics Applied to Health Sciences, Postgraduate Program, Universidade Nove de Julho-UNINOVE, São Paulo, Brazil
| | | | - Thais Rodrigues Galache
- Biophotonics Applied to Health Sciences, Postgraduate Program, Universidade Nove de Julho-UNINOVE, São Paulo, Brazil
| | - Katia Maria Dos Santos Pretti
- Biophotonics Applied to Health Sciences, Postgraduate Program, Universidade Nove de Julho-UNINOVE, São Paulo, Brazil
| | | | - Lara Jansiski Motta
- Biophotonics Applied to Health Sciences, Postgraduate Program, Universidade Nove de Julho-UNINOVE, São Paulo, Brazil
| | | | | | - Christiane Pavani
- Biophotonics Applied to Health Sciences, Postgraduate Program, Universidade Nove de Julho-UNINOVE, São Paulo, Brazil
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García PN, Andrino RL. Feasibility and Safety of Using Combined Light-Emitting Diodes Versus Intense Pulsed Light Technology for the Improvement of Facial Hypervascularization in Adult Patients. Photobiomodul Photomed Laser Surg 2023; 41:64-72. [PMID: 36780573 DOI: 10.1089/photob.2022.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Background: Superficial facial vascular lesions can be an aesthetic problem and a symptom of different skin diseases. Objective: It was to compare the efficacy and safety profiles of Dermalux® Tri-Wave MD, based on three combined light-emitting diodes (LEDs) technology and intense pulsed light (IPL) for reducing the excess of facial vascularization due to superficial cutaneous vascular lesions. Materials and methods: The study had a single-center, proof-of-concept, open-label, and prospective design. Two groups of adult patients were treated for facial hypervascularization, LED-Group with an LED device combining 633 and 830 nm and IPL-Group with an IPL (555-950 and 530-750 nm). Variables assessed were hemoglobin hyperconcentration (HH), hemoglobin-affected area (HAA) through Antera 3D®, and pain using the Numeric Pain Rating Scale. Results: Twenty subjects were included, 10 by group (50% female). LED-Group: Mean age 32.1 years (range, 21-46). IPL-Group: Mean age 34.5 years (range, 25-49). HH: LED-Group 100% had a moderate improvement; in the IPL-Group, 10% was moderate, and 90% was marked. HAA: LED-Group 10% had a slight improvement, 70% moderate, and 20% marked; in the IPL-Group, 100%, the improvement was marked. Seventy percent of LED-Group patients reported no pain, 30% mild; in the IPL-Group, 100% of patients reported severe pain. Conclusions: Treatment with combined red and near-infrared LEDs effectively reduced the excess of facial vascularization with moderate outcomes compared with IPL, but without secondary effects and no pain. This treatment could represent an effective, safe, and well-tolerated approach for facial vascular lesions.
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Elawar A, Livache A, Patault S, Vila D. Combined Photobiomodulation and Static Magnetic Fields to Reduce Side Effects from Laser and Radiofrequency Treatments for Dermatological Conditions. THE JOURNAL OF CLINICAL AND AESTHETIC DERMATOLOGY 2023; 16:24-28. [PMID: 36909868 PMCID: PMC10005803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Background Photobiomodulation therapy (PBMT) can significantly reduce inflammation and relieve pain, including postoperative pain and edema. The study aimed to evaluate the performance of a photobiomodulation-based device that includes a static magnetic field (SMF) to treat laser- or intensive and fractional radiofrequency-related side effects, such as pain, redness, and edema in patients treated for different dermatological conditions. Methods The study had a prospective, non-randomized, single-center design. Male and female patients aged 18 years or older underwent one or two PBMT-SMF (anti-inflammatory or anti-edematous) sessions on the same day, once or twice a week, after laser or radiofrequency facial treatments due to various dermatological disorders. Variables and efficacy assessments were pain, redness, edema, and their reduction from baseline to the last visit. Results Twenty-seven patients were included, seven (25.9%) men and 20 (74.1%) women, with a mean (SD) age of 43.7 (14.1) years. Seven (25.9%) patients were treated with radiofrequency, and 20 (74.1%) patients with a vascular laser (three [15%] for angioma, two [10%] for scars, three [15%] for erythrosis, and 12 [60%] for rosacea). After the PBMT-SMF protocol, overall mean pain reduction was 40 percent, and redness and edema reduction were shown by the pictures taken before and after the PBMT-SMF procedure. Limitations The primary limitations were the small number of patients and no quantitative variables for redness and edema. Conclusion PBMT-SMF reduced edema and inflammation after treatment with lasers or intensive or fractional radiofrequency for facial conditions, and probably, analgesic and anti-inflammatory drugs.
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Affiliation(s)
- Anwar Elawar
- Dr. Elawar, Ms. Livache, and Ms. Patault are with the Aesthetic Dermatological Laser Center in Marseille, France
| | - Audrey Livache
- Dr. Elawar, Ms. Livache, and Ms. Patault are with the Aesthetic Dermatological Laser Center in Marseille, France
| | - Stéphanie Patault
- Dr. Elawar, Ms. Livache, and Ms. Patault are with the Aesthetic Dermatological Laser Center in Marseille, France
| | - Damien Vila
- Mr. Vila is with the Faculty of Medicine of Montpellier-Nîmes at the University of Montpellier in Montpellier, France
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Xenodochidis C, Staneva D, Vasileva B, Draganova M, Miloshev G, Georgieva M, Zagorchev P. The Photobiomodulation of MAO-A Affects the Contractile Activity of Smooth Muscle Gastric Tissues. Biomolecules 2022; 13:biom13010032. [PMID: 36671417 PMCID: PMC9855794 DOI: 10.3390/biom13010032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
Nowadays, the utilized electromagnetic radiation (ER) in modalities such as photobiomodulation (PBM) finds broader applications in medical practice due to the promising results suggested by numerous reports. To date, the published data do not allow for the in-depth elucidation of the molecular mechanisms through which ER impacts the human organism. Furthermore, there is a total lack of evidence justifying the relation between the enzymatic activity of monoamine oxidase A (MAO-A) and the effect of 5-hydroxytryptamine (5-HT) on the spontaneous contractile activity of smooth muscle gastric tissues exposed to various light sources. We found that exposure of these tissues to lamps, emitting light with wavelengths of 254 nm and 350 nm, lasers, emitting light with 532 nm and 808 nm, and light-emitting diodes (LEDs) with ER at a wavelength of 660 nm, increased the 5-HT effect on the contractility. On the other hand, LEDs at 365 nm and 470 nm reduced it. The analysis of MAO-A enzymatic activity after exposure to the employed light emitters endorsed these findings. Furthermore, MAOA gene expression studies confirmed the possibility of its optogenetic regulation. Therefore, we concluded that the utilized emitters could alternate the functions of significant neuromediators by modulating the activity and gene transcription levels of enzymes that degrade them. Our investigations will help to disclose the selective conditions upon which PBM can effectively treat gastrointestinal and neurological disorders.
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Affiliation(s)
- Charilaos Xenodochidis
- Institute of Biophysics and Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Laboratory of Molecular Genetics, Institute of Molecular Biology “Acad. Roumen Tsanev”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Dessislava Staneva
- Laboratory of Molecular Genetics, Institute of Molecular Biology “Acad. Roumen Tsanev”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Bela Vasileva
- Laboratory of Molecular Genetics, Institute of Molecular Biology “Acad. Roumen Tsanev”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Milena Draganova
- Department of Medical Biology, Medical Faculty, Medical University-Plovdiv, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
- Research Institute, Medical University-Plovdiv, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
| | - George Miloshev
- Laboratory of Molecular Genetics, Institute of Molecular Biology “Acad. Roumen Tsanev”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
| | - Milena Georgieva
- Laboratory of Molecular Genetics, Institute of Molecular Biology “Acad. Roumen Tsanev”, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Correspondence: ; Tel.: +359-896-833-604
| | - Plamen Zagorchev
- Research Institute, Medical University-Plovdiv, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
- Department of Biophysics, Faculty of Pharmacy, Medical University-Plovdiv, 15A Vasil Aprilov Blvd., 4002 Plovdiv, Bulgaria
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12
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Multiple LEDT wavelengths modulate the Akt signaling pathways and attenuate pathological events in mdx dystrophic muscle cells. Photochem Photobiol Sci 2022; 21:1257-1272. [PMID: 35380391 DOI: 10.1007/s43630-022-00216-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 03/21/2022] [Indexed: 10/18/2022]
Abstract
This study is aimed at investigating the effects of LEDT, at multiple wavelengths, on intracellular calcium concentration; on transient receptor potential canonical channels; on calcium-binding protein; on myogenic factors; on myosin heavy chains; on Akt signaling pathway; on inflammatory markers; and on the angiogenic-inducing factor in dystrophic muscle cell culture experimental model. Dystrophic primary muscle cells were submitted to LEDT, at multiple wavelengths (420 nm, 470 nm, 660 nm, and 850 nm), and evaluated after 48 h for cytotoxic effects and intracellular calcium content. TRPC-1, TRPC-6, Calsequestrin, MyoD, Myogenin, MHC-slow, MHC-fast, p-AKT, p-mTOR, p-FoxO1, Myostatin, NF-κB, TNF-α, and VEGF levels were evaluated in dystrophic primary muscle cells by western blotting. The LEDT, at multiple wavelengths, treated-mdx muscle cells showed no cytotoxic effect and significant lower levels in [Ca2 +]i. The mdx muscle cells treated with LEDT showed a significant reduction of TRPC-1, NF-κB, TNF-α and MyoD levels and a significant increase of Myogenin, MHC-slow, p-AKT, p-mTOR, p-FoxO1 levels, and VEGF levels. Our findings suggest that different LEDT wavelengths modulate the Akt-signaling pathways and attenuate pathological events in dystrophic muscle cells, and a combined multiwavelength irradiation protocol may even provide a potentially therapeutic strategy for muscular dystrophies.
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13
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Li WH, Seo I, Kim B, Fassih A, Southall MD, Parsa R. Low-level red plus near infrared lights combination induces expressions of collagen and elastin in human skin in vitro. Int J Cosmet Sci 2021; 43:311-320. [PMID: 33594706 DOI: 10.1111/ics.12698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Revised: 12/22/2020] [Accepted: 02/15/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE Light therapy has attracted medical interests as a safe, alternative treatment for photo-ageing and photo-damaged skin. Recent research suggested the therapeutic activity of red and infrared (IR) lights may be effective at much lower energy levels than those used clinically. This study was to evaluate the efficacy of low-level red plus near IR light emitting diode (LED) combination on collagen and elastin and ATP production. METHODS Human dermal fibroblasts or skin tissues were irradiated daily by red (640 nm) plus near IR (830 nm) LED lights combination at 0.5 mW/cm2 for 10 minutes (0.3 J/cm2 ). qPCR, ELISAs or histology were used to determine the gene and protein expressions. Fluorescent measurement was used to assess crosslinks of collagen and elastic fibres. ATP production was evaluated by ATP assay. RESULTS Treatment of human fibroblast cell cultures with low-level red plus near IR lights combination was found to significantly increase LOXL1, ELN and COL1A1 and COL3A1 gene expressions as well as the synthesis of the procollagen type I and elastin proteins. Treating human skin explants with low-level red plus near IR lights combination similarly induced significant increases in the same gene expressions, type III collagen and elastic fibre formation and crosslinks. ATP production was increased in human dermal fibroblasts after red plus near IR lights combination treatment. CONCLUSION Low-level red plus near IR lights combination stimulated the production of collagen and elastin production associated with anti-ageing benefits. These findings suggest that low-level red plus near IR LED light combination may provide an effective treatment opportunity for people with photo-aged skin.
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Affiliation(s)
- Wen-Hwa Li
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
| | - InSeok Seo
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
| | - Brian Kim
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
| | - Ali Fassih
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
| | - Michael D Southall
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
| | - Ramine Parsa
- The Johnson & Johnson Skin Research Center, Johnson & Johnson Consumer Inc., Skillman, NJ, USA
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14
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Glass GE. Photobiomodulation: The Clinical Applications of Low-Level Light Therapy. Aesthet Surg J 2021; 41:723-738. [PMID: 33471046 DOI: 10.1093/asj/sjab025] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Low-level light therapy (LLLT) is a recent addition to the pantheon of light-based therapeutic interventions. The absorption of red/near-infrared light energy, a process termed "photobiomodulation," enhances mitochondrial ATP production, cell signaling, and growth factor synthesis, and attenuates oxidative stress. Photobiomodulation is now highly commercialized with devices marketed directly to the consumer. In the gray area between the commercial and therapeutic sectors, harnessing the clinical potential in reproducible and scientifically measurable ways remains challenging. OBJECTIVES The aim of this article was to summarize the clinical evidence for photobiomodulation and discuss the regulatory framework for this therapy. METHODS A review of the clinical literature pertaining to the use of LLLT for skin rejuvenation (facial rhytids and dyschromias), acne vulgaris, wound healing, body contouring, and androgenic alopecia was performed. RESULTS A reasonable body of clinical trial evidence exists to support the role of low-energy red/near-infrared light as a safe and effective method of skin rejuvenation, treatment of acne vulgaris and alopecia, and, especially, body contouring. Methodologic flaws, small patient cohorts, and industry funding mean there is ample scope to improve the quality of evidence. It remains unclear if light-emitting diode sources induce physiologic effects of compararable nature and magnitude to those of the laser-based systems used in most of the higher-quality studies. CONCLUSIONS LLLT is here to stay. However, its ubiquity and commercial success have outpaced empirical approaches on which solid clinical evidence is established. Thus, the challenge is to prove its therapeutic utility in retrospect. Well-designed, adequately powered, independent clinical trials will help us answer some of the unresolved questions and enable the potential of this therapy to be realized.
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15
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De Cordova JA. Role of Photo-Biomodulation Therapy in Facial Rejuvenation and Facial Plastic Surgery. Facial Plast Surg 2021; 37:267-273. [PMID: 33588472 DOI: 10.1055/s-0041-1722980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Photo-biomodulation (PBM) also known as low-level laser therapy is a rising technology with multiple potential uses in medicine and recently in the cosmetic field for the treatment of skin conditions and skin rejuvenation. Due to its wound healing and anti-inflammatory properties, there is an increase in popularity in its use as adjunctive treatment before and after surgical procedures in the face and neck.
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Affiliation(s)
- Jose A De Cordova
- Department of ENT, Head and Neck Surgery, Jersey General Hospital, Jersey, United Kingdom.,VIDA Health & Aesthetics, Jersey, United Kingdom
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16
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Guermonprez C, Declercq L, Decaux G, Grimaud JA. Safety and efficacy of a novel home-use device for light-potentiated (LED) skin treatment. JOURNAL OF BIOPHOTONICS 2020; 13:e202000230. [PMID: 32949447 DOI: 10.1002/jbio.202000230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/17/2020] [Accepted: 07/28/2020] [Indexed: 06/11/2023]
Abstract
Skin structure and function results from a dynamic interplay between dermal and epidermal cell types. Optimizing skin health through an effective and long-lasting skin care regime therefore requires a global approach, encompassing various mechanisms to stimulate this interplay beyond the action scope of a classical topical solution. This study evaluates the impact of a novel home-use device combining a topical serum, light-emitting diodes and massage on the clinical signs of extrinsic skin aging. The innovative principle relies on potentiating the effect of active ingredients contained in the topical serum with visible and near infra-red photons to prevent extracellular matrix degradation and promote its reconstruction. After in vitro and ex vivo investigations, a clinical study assessed the safety and efficacy of a daily treatment with the home-use device for 28 days. A significant increases in skin density and radiance while reducing the wrinkles was obtained with no side effects.
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Affiliation(s)
| | | | | | - Jean-Alexis Grimaud
- LightInDerm R&D, Hôpital Cochin, Paris, France
- Matriscience, Hôpital Cochin, Paris, France
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17
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Improvements in Skin Quality Biological Markers in Skin Explants Using Hyaluronic Acid Filler VYC-12L. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 8:e2723. [PMID: 32537370 PMCID: PMC7253252 DOI: 10.1097/gox.0000000000002723] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 02/03/2020] [Indexed: 11/26/2022]
Abstract
Hyaluronic acid (HA), both crosslinked and uncrosslinked, is used clinically to treat fine lines and provides additional improvements in skin quality attributes. The purpose of this study was to assess potential early differences in the expression of biological markers of skin quality in living human skin explants injected with uncrosslinked and crosslinked HA gels. Methods Living human skin explants injected with VYC-12L or noncrosslinked HA with mannitol (HYD) and noninjected controls were assessed via microscopy, histology, and immunohistochemistry on days 3 and/or 8 for biological markers of elasticity (collagen density, elastin, fibrillin-1) and hydration [aquaporin-3, acidic glycosaminoglycans (GAGs), HA]. Hydration was also assessed via a corneometer probe on days 0, 1, 2, and 8. Results On day 3 versus controls, VYC-12L moderately increased collagen density in the upper reticular dermis and clearly increased fibrillin-1 expression, with slight increases persisting on day 8. Increases with HYD were smaller and did not persist on day 8. Both VYC-12L and HYD increased aquaporin-3 expression and GAG content on days 3 and 8, but VYC-12L produced greater GAG increases in the reticular dermis. Day 8 instrument-assessed hydration increased by 49% and 22% for VYC-12L and HYD, respectively. Elastin expression in oxytalan and elaunin fibers was unchanged. Upper-dermal HA reductions suggested HA injection-induced hyaluronidase expression. Conclusion VYC-12L produced greater, more lasting improvements in biological markers of skin quality than HYD.
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18
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Abstract
Cosmetic devices using non-ionizing radiation (NIR) are increasingly available for people who wish to modify their appearance for aesthetic purposes. There are a wide range of NIR modalities used for cosmetic procedures, including devices that use optical radiation (laser, intense pulsed light, and light-emitting diode), electromagnetic fields, and ultrasound. Common procedures involving the application of NIR include epilation, skin rejuvenation, body sculpting and contouring, treatment of vascular and skin lesions, tattoo removal, and scar reduction. The majority of research on the use of NIR cosmetic devices has focused on the efficacy of the treatment rather than adverse effects or complications. Studies that assessed safety consisted mostly of case reports and small case series. Common adverse effects on the skin reported include mild and transient pain, erythema, swelling, and changes in pigmentation. Less common, more severe side effects include burns, blisters, scarring, persisting erythema, altered pigmentation, and eye damage. Some of the latter may have resulted from treatment errors. Particular groups of people that may be at greater risk from optical radiation include people with dark skin, with high sun exposure, and taking photosensitizing medications or supplements. There is lack of evidence for the safety profile of cosmetic NIR procedures during pregnancy. Reports of injuries to workers administering treatments with cosmetic NIR devices are rare, but inadvertent damage to the eye from optical devices may occur. Randomized controlled trials are required to fully assess potential adverse effects from the use of NIR cosmetic devices. Regulation varies worldwide and some regions apply the same safety classification and guidance as for medical devices. In order to reduce harm associated with the use of cosmetic devices, ICNIRP considers it important that regulations that cover all types and frequencies of cosmetic NIR devices are adopted worldwide and that there is greater oversight regarding their use.
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Correia SFH, Fernandes RL, Fu L, Nolasco MM, Carlos LD, Ferreira RAS. High Emission Quantum Yield Tb
3+
‐Activated Organic‐Inorganic Hybrids for UV‐Down‐Shifting Green Light‐Emitting Diodes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Sandra F. H. Correia
- Phantom‐G CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
| | - Ricardo L. Fernandes
- Phantom‐G CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
| | - Lianshe Fu
- Phantom‐G CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
- Chemistry Department and CICECO ‐ Aveiro Institute of Materials CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
| | - Mariela M. Nolasco
- Chemistry Department and CICECO ‐ Aveiro Institute of Materials CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
| | - Luís D. Carlos
- Phantom‐G CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
| | - Rute A. S. Ferreira
- Phantom‐G CICECO ‐ Aveiro Institute of Materials, and Physics Department University of Aveiro 3810‐193 Aveiro Portugal
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20
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Heidari Beigvand H, Razzaghi M, Rostami-Nejad M, Rezaei-Tavirani M, Safari S, Rezaei-Tavirani M, Mansouri V, Heidari MH. Assessment of Laser Effects on Skin Rejuvenation. J Lasers Med Sci 2020; 11:212-219. [PMID: 32273965 DOI: 10.34172/jlms.2020.35] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Laser skin resurfacing has changed the approach of facial skin rejuvenation over the past decade. This article evaluates the laser effects on skin rejuvenation by the assessment of laser characteristics and histological and molecular changes, accompanied by the expression of proteins during and after laser-assisted rejuvenation of skin. It is important to note that different layers of skin with different cells are normally exposed to the sun's UV radiation which is the most likely factor in aging and damaging healthy skin. To identify the expression of proteins, using validated databases and reviewing existing data could reveal altered proteins which could be analyzed and mapped to investigate their expression and their different effects on cell biological responses. In this regard, proteomics data can be used for better investigation of the changes in the proteomic profile of the treated skin. Different assessments have revealed the survival and activation of fibroblasts and new keratinocytes with an increase of collagen and elastin fibers in the dermis and the reduction of matrix metalloproteinases (MMPs) and heat shock proteins (HSPs) as a result of different low-power laser therapies of skin. There are a wide range of biological effects associated with laser application in skin rejuvenation; therefore, more safety considerations should be regarded in the application of lasers in skin rejuvenation.
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Affiliation(s)
- Hazhir Heidari Beigvand
- Firoozabadi Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Razzaghi
- Laser Application in Medical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Rostami-Nejad
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Rezaei-Tavirani
- Firoozabadi Hospital, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Safari
- Proteomics Research Center, Department of Emergency Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mostafa Rezaei-Tavirani
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Vahid Mansouri
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hossein Heidari
- Proteomics Research Center, Faculty of Paramedical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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21
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Jagdeo J, Nguyen JK, Ho D, Wang EB, Austin E, Mamalis A, Kaur R, Kraeva E, Schulman JM, Li CS, Hwang ST, Wun T, Maverakis E, Isseroff RR. Safety of light emitting diode-red light on human skin: Two randomized controlled trials. JOURNAL OF BIOPHOTONICS 2020; 13:e201960014. [PMID: 31483941 PMCID: PMC8887049 DOI: 10.1002/jbio.201960014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/31/2019] [Accepted: 09/01/2019] [Indexed: 05/08/2023]
Abstract
Therapeutic applications of light emitting diode-red light (LED-RL) are expanding, yet data on its clinical effects are lacking. Our goal was to evaluate the safety of high fluence LED-RL (≥160 J/cm2 ). In two phase I, single-blind, dose escalation, randomized controlled trials, healthy subjects received LED-RL or mock irradiation to the forearm thrice weekly for 3 weeks at fluences of 160-640 J/cm2 for all skin types (STARS 1, n = 60) and at 480-640 J/cm2 for non-Hispanic Caucasians (STARS 2, n = 55). The primary outcome was the incidence of adverse events (AEs). The maximum tolerated dose was the highest fluence that did not elicit predefined AEs. Dose-limiting AEs, including blistering and prolonged erythema, occurred at 480 J/cm2 in STARS 1 (n = 1) and 640 J/cm2 in STARS 2 (n = 2). AEs of transient erythema and hyperpigmentation were mild. No serious AEs occurred. We determined that LED-RL is safe up to 320 J/cm2 for skin of color and 480 J/cm2 for non-Hispanic Caucasian individuals. LED-RL may exert differential cutaneous effects depending on race and ethnicity, with darker skin being more photosensitive. These findings may guide future studies to evaluate the efficacy of LED-RL for the treatment of various diseases.
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Affiliation(s)
- Jared Jagdeo
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Julie K. Nguyen
- Department of Dermatology, The State University of New York Downstate Medical Center, Brooklyn, NY
- Dermatology Service, VA New York Harbor Healthcare System Brooklyn Campus, Brooklyn, NY
| | - Derek Ho
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Erica B. Wang
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Evan Austin
- Department of Dermatology, University of California, Davis, Sacramento, CA
| | - Andrew Mamalis
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Department of Dermatology, The State University of New York Downstate Medical Center, Brooklyn, NY
| | - Ramanjot Kaur
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Ekaterina Kraeva
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Joshua M. Schulman
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
| | - Chin-Shang Li
- Department of Public Health Sciences, Division of Biostatistics, University of California Davis, Sacramento, CA
| | - Samuel T. Hwang
- Department of Dermatology, University of California, Davis, Sacramento, CA
| | - Ted Wun
- Division of Hematology & Oncology, Department of Internal Medicine, University of California Davis, Sacramento, CA
- Division of Hematology & Oncology, Sacramento VA Medical Center, Mather, CA
- UC Davis Clinical and Translational Sciences Center, Sacramento, CA
| | - Emanual Maverakis
- Department of Dermatology, University of California, Davis, Sacramento, CA
| | - R. Rivkah Isseroff
- Department of Dermatology, University of California, Davis, Sacramento, CA
- Dermatology Service, Sacramento VA Medical Center, Mather, CA
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22
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Abstract
Smooth, wrinkle-free skin is associated with supposed attractiveness, youthfulness, and health, while rhytids have a negative impact on one's perceived appearance, image, and self-esteem. Noninvasive esthetic procedures such as laser or light therapy have been used to achieve and attain a more youthful appearance. Currently, there is a wide range of lasers and devices available for the regeneration and healing of skin. Lasers and light sources for skin rejuvenation involve the removal of aged skin tissue via thermal heat from high-powered lasers, stimulating the surrounding tissues to recover through natural wound-healing processes. In contrast, photobiomodulation, which makes use of low energy lasers or light emitting diodes, uses no heat and has shown positive effects in the reduction of wrinkles and improving skin laxity.
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23
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Wang EB, Kaur R, Nguyen J, Ho D, Austin E, Maverakis E, Li CS, Hwang ST, Isseroff RR, Jagdeo J. A single-blind, dose-escalation, phase I study of high-fluence light-emitting diode-red light on Caucasian non-Hispanic skin: study protocol for a randomized controlled trial. Trials 2019; 20:177. [PMID: 30894210 PMCID: PMC6425608 DOI: 10.1186/s13063-019-3278-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 03/04/2019] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND Visible light (400 to 700 nm) is common in our environment, comprising 44% of total solar radiation and a large component of environmental light exposure. The effects of visible light on skin remain undefined. The red light portion of the visible spectrum (600 to 700 nm) may be used to treat skin diseases as a monotherapeutic modality or in combination with other agents. Light-emitting diode-red light (LED-RL) phototherapy may represent an important advance in light-based treatment modalities because it is non-invasive, inexpensive, portable, and easily combinable with other therapies. We previously determined the maximum tolerated dose (MTD) of high-fluence LED-RL (HF-LED-RL) in skin of color individuals to be 320 J/cm2. To the best of our knowledge, no clinical trials have been performed to determine the safety of higher doses of HF-LED-RL in Caucasian non-Hispanic individuals. The aim of this study is to investigate the safety of HF-LED-RL at doses of 480 and 640 J/cm2 in healthy Caucasian non-Hispanic individuals. METHODS This is a single-blind, dose-escalation, randomized, controlled, phase I trial titled Safety Trial Assessing Red-light on Skin (STARS) 2. Healthy subjects will be randomly assigned to groups of five (three subjects randomly assigned to HF-LED-RL phototherapy and two subjects randomly assigned to mock therapy). Subjects in group 1 will receive HF-LED-RL or mock irradiation at the starting dose of 480 J/cm2, and the dose will be escalated in the subsequent group (group 2) to 640 J/cm2. The MTD is defined as the dose level below the dose at which two or more subjects (>20% of the cohort) experience a dose-limiting toxicity (DLT). After either the MTD is established or the study endpoint of 640 J/cm2 is achieved, additional HF-LED-RL phototherapy subjects and mock therapy subjects will be enrolled at that fluence (group 3) for a total number of up to 60 subjects. Each subject will receive a total of nine irradiation sessions, three times per week for three consecutive weeks. DISCUSSION This follow-up study aims to provide important knowledge about safety and cutaneous effects of HF-LED-RL phototherapy of 480 and 640 J/cm2 in Caucasian non-Hispanic subjects. The importance of this clinical trial is that it may establish new treatment paradigms and a safety profile for LED-RL based on race and ethnicity. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT03433222 . Registered on February 1, 2018 - Retrospectively registered. Protocol date and version: January 12, 2018; version 1.
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Affiliation(s)
- Erica B Wang
- Department of Dermatology, Stanford University, 269 Campus Drive CCSR 2150, Stanford, CA, 94305, USA
| | - Ramanjot Kaur
- Dermatology Service, Sacramento VA Medical Center, 10535 Hospital Way, Mather, CA, 95655, USA
- Department of Dermatology, University of California Davis, 3301 C Street, Suite 1400, Sacramento, CA, 95816, USA
| | - Julie Nguyen
- Department of Dermatology, The State University of New York Downstate Medical Center, 450 Clarkson Avenue MSC 46, Brooklyn, NY, 11203, USA
| | - Derek Ho
- Department of Dermatology, The State University of New York Downstate Medical Center, 450 Clarkson Avenue MSC 46, Brooklyn, NY, 11203, USA
| | - Evan Austin
- Department of Dermatology, The State University of New York Downstate Medical Center, 450 Clarkson Avenue MSC 46, Brooklyn, NY, 11203, USA
| | - Emanual Maverakis
- Department of Dermatology, University of California Davis, 3301 C Street, Suite 1400, Sacramento, CA, 95816, USA
| | - Chin-Shang Li
- School of Nursing, The State University of New York, University of Buffalo, 3435 Main St, Buffalo, NY, 14214, USA
| | - Samuel T Hwang
- Department of Dermatology, University of California Davis, 3301 C Street, Suite 1400, Sacramento, CA, 95816, USA
| | - R Rivkah Isseroff
- Dermatology Service, Sacramento VA Medical Center, 10535 Hospital Way, Mather, CA, 95655, USA
- Department of Dermatology, University of California Davis, 3301 C Street, Suite 1400, Sacramento, CA, 95816, USA
| | - Jared Jagdeo
- Department of Dermatology, The State University of New York Downstate Medical Center, 450 Clarkson Avenue MSC 46, Brooklyn, NY, 11203, USA.
- Dermatology Service, VA New York Harbor Healthcare System - Brooklyn Campus, 800 Poly Pl, Brooklyn, NY, 11209, USA.
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24
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Sorbellini E, Rucco M, Rinaldi F. Photodynamic and photobiological effects of light-emitting diode (LED) therapy in dermatological disease: an update. Lasers Med Sci 2018; 33:1431-1439. [PMID: 30006754 PMCID: PMC6133043 DOI: 10.1007/s10103-018-2584-8] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/05/2018] [Indexed: 12/16/2022]
Abstract
Benefit deriving from the use of light is known since ancient time, but, only in the last decades of twentieth century, we witnessed the rapid expansion of knowledge and techniques. Light-emitted diode (LED)-based devices represent the emerging and safest tool for the treatment of many conditions such as skin inflammatory conditions, aging, and disorders linked to hair growth. The present work reviews the current knowledge about LED-based therapeutic approaches in different skin and hair disorders. LED therapy represents the emerging and safest tool for the treatment of many conditions such as skin inflammatory conditions, aging, and disorders linked to hair growth. The use of LED in the treatment of such conditions has now entered common practice among dermatologists. Additional controlled studies are still needed to corroborate the efficacy of such kind of treatment.
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Affiliation(s)
- Elisabetta Sorbellini
- International Hair Research Foundation (IHRF), Milan, Italy.
- Human Advanced Microbiome Project-HMAP, Milan, Italy.
| | | | - Fabio Rinaldi
- International Hair Research Foundation (IHRF), Milan, Italy
- Human Advanced Microbiome Project-HMAP, Milan, Italy
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Abstract
Photobiomodulation (PBM) is a treatment method based on research findings showing that irradiation with certain wavelengths of red or near-infrared light has been shown to produce a range of physiological effects in cells, tissues, animals and humans. Scientific research into PBM was initially started in the late 1960s by utilizing the newly invented (1960) lasers, and the therapy rapidly became known as "low-level laser therapy". It was mainly used for wound healing and reduction of pain and inflammation. Despite other light sources being available during the first 40 years of PBM research, lasers remained by far the most commonly employed device, and in fact, some authors insisted that lasers were essential to the therapeutic benefit. Collimated, coherent, highly monochromatic beams with the possibility of high power densities were considered preferable. However in recent years, non-coherent light sources such as light-emitting diodes (LEDs) and broad-band lamps have become common. Advantages of LEDs include no laser safety considerations, ease of home use, ability to irradiate a large area of tissue at once, possibility of wearable devices, and much lower cost per mW. LED photobiomodulation is here to stay.
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Affiliation(s)
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA and Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA and Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
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Heiskanen V, Hamblin MR. Photobiomodulation: lasers vs. light emitting diodes? Photochem Photobiol Sci 2018; 17:1003-1017. [PMID: 30044464 PMCID: PMC6091542 DOI: 10.1039/c8pp90049c] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Photobiomodulation (PBM) is a treatment method based on research findings showing that irradiation with certain wavelengths of red or near-infrared light has been shown to produce a range of physiological effects in cells, tissues, animals and humans. Scientific research into PBM was initially started in the late 1960s by utilizing the newly invented (1960) lasers, and the therapy rapidly became known as "low-level laser therapy". It was mainly used for wound healing and reduction of pain and inflammation. Despite other light sources being available during the first 40 years of PBM research, lasers remained by far the most commonly employed device, and in fact, some authors insisted that lasers were essential to the therapeutic benefit. Collimated, coherent, highly monochromatic beams with the possibility of high power densities were considered preferable. However in recent years, non-coherent light sources such as light-emitting diodes (LEDs) and broad-band lamps have become common. Advantages of LEDs include no laser safety considerations, ease of home use, ability to irradiate a large area of tissue at once, possibility of wearable devices, and much lower cost per mW. LED photobiomodulation is here to stay.
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Affiliation(s)
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA and Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA and Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, USA.
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Rocha Mota L, Motta LJ, Duarte IDS, Horliana ACRT, da Silva DDFT, Pavani C. Efficacy of phototherapy to treat facial ageing when using a red versus an amber LED: a protocol for a randomised controlled trial. BMJ Open 2018; 8:e021419. [PMID: 29858421 PMCID: PMC5988166 DOI: 10.1136/bmjopen-2017-021419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION The skin undergoes morphological and physiological changes with the advancing age of an individual. These changes may be caused by intrinsic and extrinsic factors that contribute to cellular ageing and consequent skin ageing. The term photoageing is used to characterise the ageing of the skin caused by solar radiation. Clinically, the skin becomes more flaccid, thicker and hyperpigmented, while there is an early appearance of wrinkles and other skin changes, such as skin cancer. Nowadays, there are numerous treatments for ageing skin, and one of them is with the use of phototherapy, which uses light-emitting diodes (LEDs). The objective of this study will be to evaluate the percentages of reduction in the volume of periocular wrinkles when treated with red and amber LEDs. METHODS AND ANALYSIS All of the participants will receive photobiomodulation to treat their periocular wrinkles. They will be using red and amber LEDs, with one colour being used on each hemiface. The facial side to be treated with each colour will be randomised. After an interval of 180 days, the participants will receive a cross-treatment. The primary variable of the study is the volume of periocular wrinkles (crow's feet), which will be measured by a VisioFace equipment. The secondary variables are elasticity (measured by Cutometer) and hydration (measured by Corneometer). Quality of life and self-assessment of the participants will be measured using the adapted Melasma Quality of Life scale - Brazilian Portuguese adaption (MelasQoL-BP) and Skindex-29 questionnaires. All of the variables will be measured before and after a group of 10 sessions. ETHICS AND DISSEMINATION This protocol was approved by the Research Ethics Committee of the Nove de Julho University (acceptance number: 2.550.732). This trial has been registered in the Registro Brasileiro de Ensaios Clínicos (Brazilian Clinical Trials Registry) (REBEC number: RBR-6YFCBM). This study is not recruiting yet. TRIAL REGISTRATION NUMBER RBR6YFCBM; Pre-results.
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Affiliation(s)
- Lidiane Rocha Mota
- Biophotonics Applied to Health Sciences Postgraduate Program, Universidade Nove de Julho (UNINOVE), Sao Paulo, Brazil
| | - Lara Jansiski Motta
- Biophotonics Applied to Health Sciences Postgraduate Program, Universidade Nove de Julho (UNINOVE), Sao Paulo, Brazil
| | | | | | | | - Christiane Pavani
- Biophotonics Applied to Health Sciences Postgraduate Program, Universidade Nove de Julho (UNINOVE), Sao Paulo, Brazil
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28
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Abstract
BACKGROUND A validated scale is needed for objective and reproducible comparisons of facial skin roughness before and after aesthetic treatment in practice and in clinical studies. OBJECTIVE To describe the development and validation of the 5-point photonumeric Allergan Skin Roughness Scale. METHODS The scale was developed to include an assessment guide, verbal descriptors, morphed images, and real subject images for each grade. The clinical significance of a 1-point score difference was evaluated in a review of image pairs representing varying differences in severity. Interrater and intrarater reliability was evaluated in a live-subject validation study (N = 290) completed during 2 sessions occurring 3 weeks apart. RESULTS A score difference of ≥1 point was shown to reflect a clinically meaningful difference (mean [95% confidence interval] absolute score difference 1.09 [0.96–1.23] for clinically different image pairs and 0.53 [0.38–0.67] for not clinically different pairs). Intrarater agreement between the 2 validation sessions was almost perfect (weighted kappa = 0.83). Interrater agreement was almost perfect during the second rating session (0.81, primary end point). CONCLUSION The Allergan Skin Roughness Scale is a validated and reliable scale for physician rating of midface skin roughness.
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29
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The Efficacy and Safety of 660 nm and 411 to 777 nm Light-Emitting Devices for Treating Wrinkles. Dermatol Surg 2017; 43:371-380. [DOI: 10.1097/dss.0000000000000981] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Pereira TRC, Vassão PG, Venancio MG, Renno ACM, Aveiro MC. Non-ablative radiofrequency associated or not with low-level laser therapy on the treatment of facial wrinkles in adult women: A randomized single-blind clinical trial. J COSMET LASER THER 2017; 19:133-139. [DOI: 10.1080/14764172.2016.1269929] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | | | | | | | - Mariana Chaves Aveiro
- Department of Human Movement Sciences, Federal University of Sao Paulo (UNIFESP), Santos-SP, Brazil
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31
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Gold MH, Biron J, Levi L, Sensing W. Safety, efficacy, and usage compliance of home-use device utilizing RF and light energies for treating periorbital wrinkles. J Cosmet Dermatol 2016; 16:95-102. [DOI: 10.1111/jocd.12299] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Michael H. Gold
- Tennessee Clinical Research Center; Nashville TN USA
- Gold Skin Care Center; Nashville TN USA
| | - Julie Biron
- Tennessee Clinical Research Center; Nashville TN USA
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32
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Oh CT, Kwon TR, Choi EJ, Kim SR, Seok J, Mun SK, Yoo KH, Choi YS, Choi SY, Kim BJ. Inhibitory effect of 660-nm LED on melanin synthesis inin vitroandin vivo. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2016; 33:49-57. [DOI: 10.1111/phpp.12276] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/21/2016] [Indexed: 01/04/2023]
Affiliation(s)
- Chang Taek Oh
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
| | - Tae-Rin Kwon
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Eun Ja Choi
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Soon Re Kim
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Joon Seok
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Seog Kyun Mun
- Department of Otorhinolaryngology; Chung-Ang University College of Medicine; Seoul Korea
| | - Kwang Ho Yoo
- Department of Dermatology; College of Medicine; Catholic Kwandong University; International St. Mary's Hospital; Incheon Korea
| | - Yeon Shik Choi
- Medical IT Convergence Research Center; Korea Electronics Technology Institute; Gyeonggi-do Korea
| | - Sun Young Choi
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
| | - Beom Joon Kim
- Department of Dermatology; Chung-Ang University College of Medicine; Seoul Korea
- Department of Medicine; Graduate School; Chung-Ang University; Seoul Korea
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33
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Yang C, Li Q. A prospective study of safety and efficacy of combination therapy with bipolar radiofrequency-based intense pulsed light, infrared light, and diode laser in Chinese subjects with photoaged skin. J COSMET LASER THER 2016; 18:339-44. [PMID: 26963598 DOI: 10.3109/14764172.2016.1157608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE To further evaluate the safety and effectiveness of bipolar RF-based optical therapy combining intense pulsed light (IPL), infrared light, and diode laser in the treatment of photoaged skin in Chinese subjects. METHODS Twenty-seven subjects received five treatments at 3-week intervals. Triple therapy was applied in one session to the face. Images and data were obtained 30 and 180 days after the last treatment. Objective measurements (including photometric analysis of skin pigmentation, texture and wrinkles, ultrasonic measurement of dermal thickness and dermal echo intensity, and public and self-assessment of apparent age), clinical assessment, and safety were evaluated. RESULTS Objective measurements of pigmentation, texture, wrinkles, and dermal echo intensity improved significantly, regardless of age. Self-assessment of apparent age at 30 and 180 days was reduced by an average of 2.7 and 2.2 years, respectively, and public assessment of apparent age was reduced by an average of 3.14 years and 2.95 years, respectively. Global scores for photoaging were improved in all patients. Adverse events were generally transient and mild. CONCLUSION Sequential combination treatment reported here could significantly reduce skin pigmentation, texture and wrinkles, improve dermal intensity, and reduce the self and publicly perceived age. This therapy is safe and well tolerated.
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Affiliation(s)
- Cuixia Yang
- a Southern Medical University , Guangzhou, Guangdong Province , China.,b BAB Aesthetic Medical Hospital , Chengdu, Sichuan Province , China
| | - Qin Li
- a Southern Medical University , Guangzhou, Guangdong Province , China.,c Department of Plastic Surgery , Guangzhou General Hospital of Guangzhou Military Command of PLA , Guangzhou, Guangdong Province , China
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Greaves AJ. The effects of narrowbands of visible light upon some skin disorders: a review. Int J Cosmet Sci 2016; 38:325-45. [DOI: 10.1111/ics.12305] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 12/16/2015] [Indexed: 12/13/2022]
Affiliation(s)
- A. J. Greaves
- L'Oréal Recherche; 1 Avenue Eugène Schueller 93601 Aulnay-Sous-Bois France
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35
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Barolet D, Christiaens F, Hamblin MR. Infrared and skin: Friend or foe. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 155:78-85. [PMID: 26745730 DOI: 10.1016/j.jphotobiol.2015.12.014] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/15/2015] [Accepted: 12/15/2015] [Indexed: 12/01/2022]
Abstract
In the last decade, it has been proposed that the sun's IR-A wavelengths might be deleterious to human skin and that sunscreens, in addition to their desired effect to protect against UV-B and UV-A, should also protect against IR-A (and perhaps even visible light). Several studies showed that NIR may damage skin collagen content via an increase inMMP-1 activity in the same manner as is known for UVR. Unfortunately, the artificial NIR light sources used in such studies were not representative of the solar irradiance. Yet, little has been said about the other side of the coin. This article will focus on key information suggesting that IR-A may be more beneficial than deleterious when the skin is exposed to the appropriate irradiance/dose of IR-A radiation similar to daily sun exposure received by people in real life.IR-A might even precondition the skin--a process called photo prevention--from an evolutionary standpoint since exposure to early morning IR-A wavelengths in sunlight may ready the skin for the coming mid-day deleterious UVR. Consequently IR-A appears to be the solution, not the problem. It does more good than bad for the skin. It is essentially a question of intensity and how we can learn from the sun. © 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
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Affiliation(s)
- Daniel Barolet
- Department of Medicine, Dermatology Division, McGill University, Montreal H3A 1A1, Canada; RoseLab Skin Optics Laboratory, LavalH7T 0G3, Canada.
| | | | - Michael R Hamblin
- The Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, United States; Department of Dermatology, Harvard Medical School, Boston, MA 02115, United States; Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA 02139, United States
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