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Haykal D, Cartier H, Goldberg D, Gold M. Advancements in laser technologies for skin rejuvenation: A comprehensive review of efficacy and safety. J Cosmet Dermatol 2024. [PMID: 39158413 DOI: 10.1111/jocd.16514] [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: 05/21/2024] [Revised: 07/19/2024] [Accepted: 07/24/2024] [Indexed: 08/20/2024]
Abstract
INTRODUCTION Laser technology has fundamentally transformed the landscape of dermatology, offering nuanced solutions for skin rejuvenation and resurfacing. This paper aims to explore the spectrum of laser technologies, from ablative to non-ablative and fractional lasers, their mechanisms, benefits, and tailored applications for diverse skin conditions. As we delve into the intricacies of each technology, we also consider the scientific advancements that have made these treatments safer and more effective, promising a new horizon in skin rejuvenation. OBJECTIVE This comprehensive analysis seeks to evaluate recent advancements in laser technology for skin rejuvenation, focusing on efficacy, safety, and patient satisfaction. METHODS The selection criteria for studies in this publication focused on recent, peer-reviewed articles from the last 20 years, emphasizing advancements in laser technologies for skin rejuvenation. Our comprehensive review involved searches in PubMed, Cochrane, Scopus and Google Scholar using keywords like "skin rejuvenation," "laser technology," "efficacy," "safety," and "dermatology." This approach focused on inclusion of recent research and perspectives on the efficacy and safety of laser treatments in the field of dermatology. RESULTS Our literature review reveals advancements in laser skin resurfacing technologies, notably fractional lasers for minimal downtime rejuvenation, ablative lasers for precise tissue vaporization, and non-ablative lasers for coagulation effect promoting collagen with reduced recovery. Hybrid and picosecond lasers are highlighted for their versatility and effectiveness in addressing a wide array of skin concerns. The findings also emphasize the development of safer treatment protocols for ethnic skin, significantly reducing risks like hyperpigmentation and scarring, thus broadening the scope of effective dermatological solutions. CONCLUSION This extensive review of advancements in laser technologies for skin rejuvenation underscores a remarkable evolution in dermatological treatments, offering an expansive overview of the efficacy, safety, and patient satisfaction associated with these interventions. Furthermore, the exploration of combination treatments and laser-assisted drug delivery represents a frontier in dermatological practice, offering synergistic effects that could amplify the therapeutic benefits of laser treatments.
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Affiliation(s)
| | | | - David Goldberg
- Director of Cosmetic Dermatology and Clinical Research, Schweiger Dermatology Group, Clinical Professor of Dermatology, Icahn School of Medicine at Mt. Sinai, New York, New York, USA
| | - Michael Gold
- Gold Skin Care Center, Tennessee Clinical Research Center, Nashville, Tennessee, USA
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Ninghua L, Cao L, Song N, Zhang J. Evaluation of 755-nm Picosecond Alexandrite Laser With a Focus Lens Array for the Treatment of Enlarged Facial Pores. J Craniofac Surg 2024; 35:1552-1554. [PMID: 38819149 DOI: 10.1097/scs.0000000000010379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2024] [Accepted: 05/06/2024] [Indexed: 06/01/2024] Open
Abstract
OBJECTIVES This study aims to evaluate the use of 755-nm picosecond alexandrite laser with a focus lens array to treat facial pores. METHODS Laser treatment was performed on 129 patients between January 2021 and October 2022. VISIA imaging system was used for photographic assessments, the total average number and pore index was calculated, the physicians' assessment score and patient satisfaction score were collected, and the incidence of disadvantage effects was also documented. RESULTS The mean patient age was 35.2±6.4 years (21-45 y). The total average number of facial pores was 1614.1±412.8, and the total average number decreased to 1262.6±356.2 three months after the last treatment. The pretreatment baseline of pore index was 26.1±4.5, while the pore index was 21.3±3.7 three months after the last treatment. The physicians' assessment score was 2.7 on the 0-to-4 scale, and patient satisfaction score was 3.5 on the 1-to-5 scale. There were no adverse events, such as hyperkeratosis, scarring, and hypo-or hyperpigmentation. CONCLUSIONS 755-nm picosecond alexandrite laser with a focus lens array was safe and effective in the treatment of facial pores with relatively few unanticipated adverse events. LEVEL OF EVIDENCE Level IV-observational study without controls.
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Affiliation(s)
- Liu Ninghua
- Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital of Fudan University, Shanghai
| | - Luhong Cao
- Department of Otolaryngology Head and Neck Surgery, Sichuan Academy of Medical Science, Sichuan Provincial People's Hospital, Chengdu, China
| | - Nan Song
- Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital of Fudan University, Shanghai
| | - Jing Zhang
- Department of Facial Plastic and Reconstructive Surgery, Eye & ENT Hospital of Fudan University, Shanghai
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Rhee YH, Park BC, Jung JY, Yoo SH, Mo JH, Chung PS. Effect of fractional picosecond laser therapy using a diffractive optical lens on histological tissue reaction. J COSMET LASER THER 2024; 26:54-60. [PMID: 39171933 DOI: 10.1080/14764172.2024.2375384] [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: 09/26/2022] [Revised: 11/06/2023] [Accepted: 06/28/2024] [Indexed: 08/23/2024]
Abstract
BACKGROUND AND OBJECTIVES Fractional ablative resurfacing techniques are preferred treatments for facial rejuvenation of aged skin. This study was performed to investigate the cutaneous effects of using a fractional picosecond laser at 1064 nm with a diffractive lens. METHODS The penetration depth according to the location of the handpiece tip was evaluated using an acrylic panel. Laser induced optical breakdown (LIOB) and cutaneous damage were observed after hematoxylin and eosin staining in guinea pigs. Collagen formation was evaluated using Victoria staining, Masson's trichrome (MT) staining, and immunohistochemical staining for collagen type III. RESULTS The penetration depth for LEVEL 1 was 499.98-935.23 μm (average: 668.75 ± 182.84 μm); the LIOB cavity area was 1664.17 ± 650.52 μm2. The penetration depth of LEVEL 2 was 257.12-287.38 μm (average: 269.77 ± 14.55 μm) with an LIOB cavity area of 1335.85 ± 214.41 μm2. At LEVEL 3, that was 36.17-53.69 μm (average: 52.15 ± 20.81 μm) and the LIOB cavity area was 1312.67 ± 1069.12 μm2. No epidermal tissue damage was observed and collagen formation was observed from day 14 under all conditions. CONCLUSION Diffractive optical element (DOE) lens arranged laser treatment system controlled the position of LIOB occurrence and an irradiating area.
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Affiliation(s)
- Yun-Hee Rhee
- Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea
| | - Byung-Chul Park
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea
- Department of Dermatology, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Jee-Yeon Jung
- Laseroptek, Sungnam-si, Gyeonggi-do, Republic of Korea
| | - Shin Hyuk Yoo
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Ji-Hun Mo
- Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
| | - Phil-Sang Chung
- Beckman Laser Institute Korea, Dankook University, Cheonan, Republic of Korea
- Laser Translational Clinical Trial Center, Dankook University Hospital, Cheonan, Republic of Korea
- Department of Otolaryngology-Head and Neck Surgery, College of Medicine, Dankook University, Cheonan, Republic of Korea
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Cai CS, He GJ, Xu FW. Advances in the Applications of Extracellular Vesicle for the Treatment of Skin Photoaging: A Comprehensive Review. Int J Nanomedicine 2023; 18:6411-6423. [PMID: 37954453 PMCID: PMC10638935 DOI: 10.2147/ijn.s433611] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023] Open
Abstract
Skin photoaging is a complex biological process characterized by the accumulation of oxidative damage and structural changes in the skin, resulting from chronic exposure to ultraviolet (UV) radiation. Despite the growing demand for effective treatments, current therapeutic options for skin photoaging remain limited. However, emerging research has highlighted the potential of extracellular vesicles (EVs), including exosomes, micro-vesicles, apoptotic bodies and liposomes, as promising therapeutic agents in skin rejuvenation. EVs are involved in intercellular communication and can deliver bioactive molecules, including proteins, nucleic acids, and lipids, to recipient cells, thereby influencing various cellular processes. This comprehensive review aims to summarize the current research progress in the application of EVs for the treatment of skin photoaging, including their isolation and characterization methods, roles in skin homeostasis, therapeutic potential and clinical applications for skin photoaging. Additionally, challenges and future directions in EVs-based therapies for skin rejuvenation are discussed.
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Affiliation(s)
- Chan-Sheng Cai
- The First Clinical Medical College, Wenzhou Medical University, Wenzhou, Zhejiang, People’s Republic of China
| | - Gui-Juan He
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, People’s Republic of China
| | - Fa-Wei Xu
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, People’s Republic of China
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Wang M, Bi H, Ma Q. Application of Noise Control Combined with Relaxation Training in Patients with Skin Laser Cosmetology: A Single-center Retrospective Study. Noise Health 2023; 25:203-210. [PMID: 38358235 PMCID: PMC10849011 DOI: 10.4103/nah.nah_42_23] [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: 06/13/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 02/16/2024] Open
Abstract
Objective Noise pollution has been listed as one of the three major types of pollution, along with air and water pollution. Hospitals should pay attention to noise control, which is of great importance for the treatment and rehabilitation of patients. This study focuses on the application value of noise control and relaxation training. Methods This study retrospectively collected and analyzed the clinical data of 184 patients who underwent skin laser cosmetology in Ningbo Yinzhou No. 2 Hospital from January 2021 to December 2022. Twelve patients who did not meet the criteria were excluded, and the remaining 172 patients were divided based on the type of intervention into the control group (CG, n = 82) and the study group (SG, n = 90). The CG received relaxation training and routine noise management, while the SG received noise control combined with relaxation training. The intervention effect was discussed from the aspects of noise, psychology, and satisfaction. Results After the intervention, the SG had overtly lower noise levels and lower scores of anxiety and depression compared to the CG (all P < 0.001). Correlation analysis showed that noise levels were positively correlated with scores of anxiety and depression (r = 0.553, r = 0.592, P < 0.001). The two groups had no significant difference in total satisfaction (P > 0.05). Conclusion Noise poses a significant threat to the human body. Strengthening noise control in hospitals is beneficial for patients' recovery. Combining noise control with relaxation training is an intervention method worthy of clinical application. It can improve the hospitalization environment and reduce the noise levels to a great extent, thereby improving the psychological state of patients and enhancing the medical satisfaction.
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Affiliation(s)
- Miaohao Wang
- Department of Plastic Surgery, The First Affiliated Hospital of Ningbo University, Ningbo 315010, Zhejiang, China
| | - Haiqing Bi
- Department of Dermatology, Ningbo Yinzhou No. 2 Hospital, Ningbo 315100, Zhejiang, China
| | - Qichao Ma
- Department of Dermatology, Ningbo Yinzhou No. 2 Hospital, Ningbo 315100, Zhejiang, China
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Baleisis J, Rudys R. Comprehensive examination of tattoo removal using a 150 ps Nd:YAG laser in a porcine model. Sci Rep 2023; 13:13062. [PMID: 37567952 PMCID: PMC10421900 DOI: 10.1038/s41598-023-40379-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 08/09/2023] [Indexed: 08/13/2023] Open
Abstract
This study aimed to investigate the efficacy of a Nd:YAG laser with a pulse duration of 150 ps at different laser parameters. The effects on multiple-colored tattoos with such ultrashort pulses has not been previously described in the literature. In vivo experiments were conducted on porcine skin to analyze the fragmentation efficiency of five different tattoo colors using different wavelengths, pulse energies, and spot sizes. The results showed that the optimal tattoo clearance to safety ratio for blue, green, red, and yellow tattoos with a 532 nm wavelength was 0.96-2.39 J/cm2. The laser with a wavelength of 1064 nm demonstrated the highest efficacy in eliminating black tattoos, with positive results observed for green and blue pigments at a fluence of 3.02 J/cm2. The study provides valuable insights into the efficacy of laser treatment with 150 ps for removing tattoos of different colors using different laser parameters. This information can help dermatologists and practitioners perform more efficient and effective tattoo removal with fewer side effects.
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Affiliation(s)
- Justinas Baleisis
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, Santariskiu st. 5, 08410, Vilnius, Lithuania.
| | - Romualdas Rudys
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, Santariskiu st. 5, 08410, Vilnius, Lithuania
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Baleisis J, Rudys R. Microlesion healing dynamics in in vivo porcine skin after treatment with 1064 nm picosecond-domain Nd:YAG laser. JOURNAL OF BIOPHOTONICS 2023; 16:e202200349. [PMID: 36606608 DOI: 10.1002/jbio.202200349] [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: 11/15/2022] [Revised: 12/27/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
The fractionated picosecond laser produces microscopic lesions in the epidermis and dermis due to laser-induced optical breakdown (LIOB). There have been multiple histological reports, but the present literature lacks detailed in vivo studies after treatment with high-power laser systems. Our study aimed to characterize the healing patterns of microlesions induced with 150 ps duration 1064 nm MLA-type picosecond laser. The induced picosecond laser-tissue reactions with pulse energy of 50-250 mJ and different treatment modes were observed in in vivo porcine skin model over 10 days after the laser procedure. A macroscopic evaluation was combined with microscopic histological analysis to observe the healing dynamics of laser-induced microlesions. Superficial, intraepidermal cavitation bubbles were induced using microbeam fluence of 4-20 J/cm2 . Skin irritation scores positively correlated with pulse energy and dose. Our findings demonstrate that dose and pulse energy had a direct impact on epidermal thickness and lesions healing dynamics.
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Affiliation(s)
- Justinas Baleisis
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
| | - Romualdas Rudys
- Department of Biomodels, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania
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Kwack MH, Lee WJ. Efficacy of a home-used high-intensity focused ultrasound device on wrinkle reduction. Skin Res Technol 2023; 29:e13266. [PMID: 36704876 PMCID: PMC9838762 DOI: 10.1111/srt.13266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 12/14/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND High-intensity focused ultrasound (HIFU) has been developed for the treatment of skin wrinkles on the face, neck, and body. OBJECTIVES This study aimed to evaluate the effects of a home-used HIFU device on wrinkles in mice based on the expression of fibrosis-related genes and proteins. METHODS The backs of 20-week-old mice were treated with a home-used HIFU using the following probes: 4 MHz, 1.5 mm focal depth. The treated mice were compared with young mice by histological examination, real-time polymerase chain reaction (PCR), and immunohistochemistry. Histological examination was performed by trichrome staining. Real-time PCR and immunohistochemistry were conducted to determine the expression of collagen types I and III, matrix metalloproteinase (MMP)-1, and tissue inhibitor of metalloproteinase (TIMP)-1. RESULTS Dermal thickness was increased after treatment with the home-used HIFU device at 30 and 60 s per day for 1 week or 30 and 60 s per day for 2 weeks on trichrome. Gene and protein expression of collagen types I and III and elastin were increased after treatment with HIFU at all options of 30 and 60 s per day for 1 week or 30 and 60 s per day for 2 weeks. Gene and protein expressions of MMP-1 and TIMP-1 were decreased after treatment with HIFU device at 30 and 60 s per day for 1 week or 30 and 60 s per day for 2 weeks. CONCLUSION The home-used HIFU device can be an effective therapeutic modality for skin tightening.
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Affiliation(s)
- Mi Hee Kwack
- Department of ImmunologySchool of MedicineKyungpook National UniversityDaeguSouth Korea
- BK21 FOUR KNU Convergence Educational Program of Biomedical Sciences for Creative Future Talents, School of MedicineKyungpook National UniversityDaeguSouth Korea
| | - Weon Ju Lee
- Department of Dermatology, School of Medicine, Kyungpook National UniversityKyungpook National University HospitalDaeguSouth Korea
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Sun Y, Yang TT, Chih PL, Chen YC, Lan CCE. Favorable Effect after Single Treatment Session of 755-nm Picosecond Laser with A Diffractive Optic Lens on Facial Wrinkles and Pore Size in Asians. J Cosmet Dermatol 2022; 21:2026-2030. [PMID: 35100450 DOI: 10.1111/jocd.14810] [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: 11/06/2021] [Revised: 01/11/2022] [Accepted: 01/25/2022] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Laser therapy has become one of the mainstay treatments for improving signs of aging including wrinkles, large pores, and skin pigmentation. However, in patients with pigmented skin, an increase in complications including post-inflammatory hyperpigmentation (PIH) has been noted. The purpose of this study is to investigate not only the safety profile of 755 nm picosecond laser with diffractive lens array (DLA) at approximately 2250 pulses on the face in people with darker skin, but also to evaluate its efficacy in treating wrinkles and pore sizes after one treatment session among different age groups. METHODS This single-center, retrospective study enrolled patients between age 22 to 65 with both facial wrinkles and enlarged pore sizes. A total of 46 patients (7 male, 39 female, mean age 43) with Fitzpatrick skin types III and IV were enrolled. Two independent data-blinded dermatologists assessed and scored the improvements of patients' wrinkles and pore sizes using photographs. RESULTS After one treatment session, statistically significant improvements were observed in lateral canthal wrinkles (p<0.001) and facial wrinkles (p=0.014). In addition, greater percentage of the patients from the aged group (50-65 years-old) showed clinically significant improvement as compared to the younger group. CONCLUSIONS For patients with type III and IV skin, one session of DLA picosecond laser treatment at around 2250 pulses to the face is safe and effective for clinically meaningful improvement of the wrinkles and pore sizes, especially for the patients from 50- to 65-years of age.
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Affiliation(s)
- Yng Sun
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ting-Ting Yang
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Pei-Ling Chih
- Huang PH Dermatology and Aesthetic Clinic, Kaohsiung City, Taiwan
| | - Yin-Chun Chen
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Chen Eric Lan
- Department of Dermatology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Dermatology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Hong JK, Shin SH, Park SJ, Seo SJ, Park KY. A prospective, split-face study comparing 1,064-nm picosecond Nd:YAG laser toning with 1,064-nm Q-switched Nd:YAG laser toning in the treatment of melasma. J DERMATOL TREAT 2022; 33:2547-2553. [DOI: 10.1080/09546634.2022.2033674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Jun Ki Hong
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Sun Hye Shin
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Su Jung Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Seong Jun Seo
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
| | - Kui Young Park
- Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea
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Maki Y, Kashiwagi S, Kimizuka Y. Laser vaccine adjuvants: Light-augmented immune responses. Vaccine 2021; 39:6805-6812. [PMID: 34666921 DOI: 10.1016/j.vaccine.2021.09.042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 01/10/2023]
Abstract
Adjuvants are essential for ensuring the efficacy of modern vaccines. Considering frequent local and systemic adverse reactions, research into the development of safer and more effective adjuvants is being actively conducted. In recent years, the novel concept of laser vaccine adjuvants, which use the physical energy of light, has been developed. For long, light has been known to affect the physiological functions in living organisms. Since the development of lasers as stable light sources, laser adjuvants have evolved explosively in multiple ways over recent decades. Future laser adjuvants would have the potential not only to enhance the efficacy of conventional vaccine preparations but also to salvage candidate vaccines abandoned during development because of insufficient immunogenicity or owing to their inability to be combined with conventional adjuvants. Furthermore, the safety and efficacy of non-invasive laser adjuvants make them advantageous for vaccine dose sparing, which would be favorable for the timely and equitable global distribution of vaccines. In this review, we first describe the basics of light-tissue interactions, and then summarize the classification of lasers, the history of laser adjuvants, and the mechanisms by which different lasers elicit an immune response.
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Affiliation(s)
- Yohei Maki
- Division of Infectious Diseases and Respiratory Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan
| | - Satoshi Kashiwagi
- Gordon Center for Medical Imaging, Department of Radiology, Massachusetts General Hospital, 149 13th Street, Charlestown, MA 02129, USA
| | - Yoshifumi Kimizuka
- Division of Infectious Diseases and Respiratory Medicine, Department of Internal Medicine, National Defense Medical College, 3-2 Namiki, Tokorozawa, Saitama 359-8513, Japan.
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Liu J, Han C, Feng X, Liang J, Qu Y. Effective Picosecond Nd:YAG laser on seborrheic dermatitis and its mechanism. J Cosmet Dermatol 2021; 21:2449-2457. [PMID: 34496116 DOI: 10.1111/jocd.14414] [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: 07/24/2021] [Accepted: 08/16/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND The Picosecond Nd:YAG laser has advantages in skin rejuvenation, which has little damage to surrounding tissues due to the ultra-short pulse width. We perform clinical application of Picosecond Nd:YAG laser's tender skin mode, which could improve the seborrheic dermatitis. MATERIALS AND METHODS Sixty-three subjects with facial seborrheic dermatitis are randomized to be control and observation groups. Records regarding skin subjective improvement, skin barrier function-related data, skin microbial status, and dermoscopy detection of the two patient groups before and after treatments are investigated. RESULTS Improvements of erythema and scales in observation group are significant compared with controls (p < 0.05). In terms of skin barrier function, there are significant changes regarding transepidermal water loss and epidermal seborrhea content in observation group after the laser treatments. Skin microbial state, pityrosporum furfur, and Demodex significantly decrement in observation group. Microscopical findings of infiltration mode advise that scales and capillary congestion and dilatation are significantly improved in observation group. Compared with controls, epidermal gloss increases, pore fineness improves, and capillary density decreases in the observation group. CONCLUSIONS Picosecond Nd:YAG laser could efficiently decrease erythema area and seborrheic dermatitis scales and reduce pruritus incidence. The sebaceous gland secretion of seborrhea and multiplying of epidermal parasitic microbiological are inhibited after laser treatment. Less epidermal seborrhea content and inflammation are induced by parasitic microbiology, which is helpful for skin barrier function and microvascular remodeling.
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Affiliation(s)
- Junru Liu
- Department of Dermatology, Yantai Yuhuangding Hospital Laishan Branch, Yantai, Shandong, China
| | - Chunyu Han
- Department of Dermatology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Xien Feng
- Department of Dermatology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Jinning Liang
- Department of Dermatology, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Yan Qu
- Department of Dermatology, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
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Shi Y, Jiang W, Li W, Zhang W, Zou Y. Comparison of fractionated frequency-doubled 1,064/532 nm picosecond Nd:YAG lasers and non-ablative fractional 1,540 nm Er: glass in the treatment of facial atrophic scars: a randomized, split-face, double-blind trial. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:862. [PMID: 34164496 PMCID: PMC8184496 DOI: 10.21037/atm-21-1715] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Background Laser treatment of acne scars is common, but quality evidence on its efficacy is still needed. Our study aimed to compare picosecond laser and non-ablative fractional laser’s efficacy and safety in treating acne atrophic scars. Methods This was a randomized, split-face double-blind trial recruiting patients with acne atrophic scars. Facial halves were randomly divided and treated with fractionated frequency-doubled 1,064/532 nm picosecond Nd:YAG laser or non-ablative fractional 1,540 nm Er: glass laser. ECCA score (echelle d'evaluation clinique des cicatrices d’acne) and skin flatness measured with a non-invasive phaseshift rapid in vivo measurement of skin (PRIMOS) system were evaluated one month after the last treatment. Results Twenty-two Fitzpatrick skin type IV patients were included in this study, with an average age of 29.68 years, an average duration of acne scars of 8.8 years. Picosecond laser impacted all acne scar types (before and after treatment; P=0.000 for all types, P<0.001 for V-type, P=0.002 for U-type, and P=0.021 for M-type) and more pronounced effect on ECCA score than non-ablative laser for V-type and U-type acne scars. After treatment, each treatment site’s height was significantly lower than that before treatment (P=0.041) in the picosecond group but not in the non-ablative group (P=0.785). The reported erythema rate was higher in patients treated with a picosecond laser, while edema, exudation, purpura, pain, and long-term AEs were similar between the groups. Conclusions Fractionated frequency-doubled 1,064/532 nm Picosecond Nd: YAG laser showed better efficacy in treating acne atrophic scars than the alternative and provided satisfactory safety with added improvement in pores and the glossiness of the skin. Registration number ChiCTR2100045982 (comparison of fractionated frequency-doubled 1,064/532 nm picosecond Nd: YAG lasers and nonablative fractional 1,540 nm Er: glass in the treatment of facial atrophic scar: a randomized, split-face, double-blind controlled trial).
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Affiliation(s)
- Yu Shi
- Department of Medical Cosmetology, Tongji University Affiliated Shanghai Skin Disease Hospital, Shanghai, China
| | - Wencai Jiang
- Department of Skin, and Cosmetic Research Department, Tongji University Affiliated Shanghai Skin Disease Hospital, Shanghai, China
| | - Wei Li
- Department of Medical Cosmetology, Tongji University Affiliated Shanghai Skin Disease Hospital, Shanghai, China
| | - Wei Zhang
- Department of Medical Cosmetology, Tongji University Affiliated Shanghai Skin Disease Hospital, Shanghai, China
| | - Ying Zou
- Department of Medical Cosmetology, Tongji University Affiliated Shanghai Skin Disease Hospital, Shanghai, China
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14
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Yang Z, Duan X, Wang X, Li D, Xu Q, Xiang S, Guo B, He L. The effect of Q-switched 1064-nm dymium-doped yttrium aluminum garnet laser on the skin barrier and collagen synthesis through miR-24-3p. Lasers Med Sci 2021; 37:205-214. [PMID: 33400013 PMCID: PMC8803697 DOI: 10.1007/s10103-020-03214-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 11/26/2020] [Indexed: 11/26/2022]
Abstract
Due to the increase of the world’s population aging, how to restore youthfulness to the skin has attracted much attention. It is well known that collagen synthesis and changes in skin barrier play an important role in the process of skin aging. However, whether Q-switched 1064-nm Nd:YAG laser (1064-QSNYL) determines the involvement of miRNAs in skin collagen synthesis and skin barrier changes remains to be elucidated. Upstream miRNAs of p38 molecular pathway have been predicted by bioinformatic database and the relationship between miRNAs and p38 verified by dual-luciferase reporter gene and Western blotting. RT-qPCR analysis detected the expression of miR-24-3p and mRNA for collagen and skin barrier–related molecules, such as keratin 10 (K10), filaggrin, and Aquaporin 4 (APQ4), in mice back skin and in the keratinocyte cell line HaCaT. Western blotting and immunofluorescence (IF) have been used to detect collagen expression and to localize, as well as quantify K10, filaggrin, and APQ4, respectively. In this study, we show that p38 is the main target gene of miRNA-24-3p, and laser irradiation at 1.5 J/cm2 inhibits miR-24-3p expression. Irradiation treatment upregulates the moisture, elasticity, hydroxyproline, and superoxide dismutase content of mice skin, as well as inhibits trans-epidermal water loss. Irradiation also increases collagen, K10, filaggrin, and APQ4 in both mice skin and HaCaT cells. Interestingly, we found that miR-24-3p overexpression inhibits the effect of irradiation on collagen synthesis and skin barrier. We show for the first time that 1064-QSNYL promotes collagen synthesis and protective effects on skin barrier by downregulating miR-24-3p.
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Affiliation(s)
- Zhi Yang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China.
| | - Xiaoxia Duan
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Xue Wang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Dongqing Li
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Qi Xu
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Shunli Xiang
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Birun Guo
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China
| | - Li He
- Department of Dermatology, The First Affiliated Hospital of Kunming Medical University, No. 295, Xichang Road, Kunming, 650032, Yunnan Province, People's Republic of China.
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15
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Harrison LM, Shapiro R, Johnson RM. Tissue Modification in Nonsurgical Facelift Options. Facial Plast Surg 2020; 36:688-695. [PMID: 33368123 DOI: 10.1055/s-0040-1721115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Nonsurgical facelifts are a term for a heterogeneous group of procedures used by physicians to improve facial rejuvenation without the use of operative techniques. Patients demand these services due to the reduced recovery time and generally lower risk. However, nonsurgical techniques, to be effective, must induce conformational change in the cells and tissues of the face. Therefore, these techniques are significant procedures that have associated risks. Understanding the tissue modifications and mechanisms of action of these techniques is vital to their safe and effective use. The purpose of this article is to provide a background of tissue modification in nonsurgical facelift options.
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Affiliation(s)
- Lucas M Harrison
- Department of Plastic Surgery, Wright State University, Dayton, Ohio
| | - Ryan Shapiro
- Department of Plastic Surgery, Wright State University, Dayton, Ohio
| | - R Michael Johnson
- Department of Plastic Surgery, Wright State University, Dayton, Ohio
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