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Fujimoto Y, Yuri Y, Tamiya H. Skin mechanical properties measured with skin elasticity measurement device in patients with lymphedema: Scoping review. Skin Res Technol 2024; 30:e13861. [PMID: 39096185 PMCID: PMC11297454 DOI: 10.1111/srt.13861] [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: 05/16/2024] [Accepted: 06/26/2024] [Indexed: 08/05/2024]
Abstract
BACKGROUND Skin conditions in patients with lymphedema have been identified according to changes in skin mechanical properties. The skin elasticity meter is a non-invasive tool for measuring the mechanical properties of the skin; however, its potential use in patients with lymphedema has received little attention. This review aimed to provide an overview of studies measuring the skin mechanical properties of patients with lymphedema using a skin elasticity meter. MATERIALS AND METHODS Search terms and synonyms related to lymphedema and skin mechanical property measurement using a skin elasticity meter were identified, and electronic databases containing articles in English were searched. RESULTS A total of 621 articles were retrieved, and four articles were analyzed after screening. Despite this research subject receiving increasing attention, no consensus has been reached regarding the best methods. CONCLUSION Measurement methods are expected to be standardized in the future to elucidate the skin mechanical properties of patients with lymphedema.
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Affiliation(s)
- Yudai Fujimoto
- Department of RehabilitationOsaka International Cancer InstituteOsakaJapan
- Graduate School of Health SciencesMorinomiya University of Medical SciencesOsakaJapan
| | - Yoshimi Yuri
- Graduate School of Health SciencesMorinomiya University of Medical SciencesOsakaJapan
| | - Hironari Tamiya
- Department of RehabilitationOsaka International Cancer InstituteOsakaJapan
- Department of Orthopaedic Surgery (Musculoskeletal Oncology Service)Osaka International Cancer InstituteOsakaJapan
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Portocarrero Huang G, Idkowiak-Baldys J, Liebel F, Jones C, Haxaire C, DiNatale L, Bayat A, Glynn JR. L-4-thiazolylalanine (Protinol), a novel non-proteinogenic amino acid, demonstrates epidermal and dermal efficacy with clinically observable benefits. Int J Cosmet Sci 2024; 46:24-38. [PMID: 37562497 DOI: 10.1111/ics.12887] [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: 03/30/2023] [Revised: 07/11/2023] [Accepted: 07/28/2023] [Indexed: 08/12/2023]
Abstract
OBJECTIVE Facial skin undergoes major structural and functional changes as a result of intrinsic and extrinsic factors. The goal of the current work is to demonstrate L-4-thiazolylalaine (L4, Protinol), a non-proteinogenic amino acid shown to stimulate the production of dermal proteins by fibroblasts, is an alternative efficacious topical ingredient for visible signs of ageing. METHODS In vitro studies using 3D human skin tissue models were performed to show changes in protein and gene expression of key dermal markers in samples treated with 0.3% L4 compared to vehicle control. In vivo evaluation of skin turnover was measured in volunteers after treatment with L4 compared to retinol. Skin biopsies (n = 30) were taken to investigate epidermal and dermal changes in cases treated with L4 and compared to retinol. Finally, a clinical evaluation (n = 28) was conducted to assess the efficacy of L4 over a base formulation using various ageing parameters within a population of women 46-66 years old with mild-to-moderate wrinkles. RESULTS In vitro studies on 3D tissues displayed significant changes in the dermal matrix via an increase in HA and pro-collagen I production and a decrease in the expression of inflammatory genes. In vivo biopsy studies demonstrated that L4 and retinol independently increased epidermal thickness and collagen remodelling significantly more compared with the base formula. Clinical evaluation showed firmer and smoother skin at day 28 post-treatment with L4 over the vehicle control without causing side effects such as redness or irritation. CONCLUSION L4 is a novel, multi-functional ingredient which offers a superior alternative to currently available technologies for improving epidermal and dermal parameters that change during ageing and photodamage.
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Affiliation(s)
- Gloria Portocarrero Huang
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Jolanta Idkowiak-Baldys
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Frank Liebel
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Constantina Jones
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Coline Haxaire
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Lisa DiNatale
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
| | - Ardeshir Bayat
- MRC Wound Healing Unit, Hair and Skin Research Laboratory, Division of Dermatology, Department of Medicine, Faculty of Health Sciences, Groote Schuur Hospital, University of Cape Town, Cape Town, South Africa
| | - John R Glynn
- Avon Skin Care Institute, Global Research and Development, Avon Products Inc., Suffern, New York, USA
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Fujimoto Y, Yuri Y, Kato Y, Kinoshita S, Tamiya H. Intra- and inter-rater reliabilities of skin mechanical properties measured in healthy individuals using skin elasticity meter. Ann Med 2023; 55:2279747. [PMID: 37967233 PMCID: PMC10653741 DOI: 10.1080/07853890.2023.2279747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 10/31/2023] [Indexed: 11/17/2023] Open
Abstract
PURPOSE The aim of this study is to establish a standardized measurement method and to examine the intra- and inter-reliabilities and absolute reliability of measuring skin mechanical properties using a skin elasticity meter (Cutometer®). METHODS Ten healthy participated in the study. Skin mechanical properties were measured at four sites: upper arm, lower arm, upper leg and lower leg on both sides in supine position using a non-invasive skin elasticity meter by two trained different raters. The measurements include quantitative indices of the maximal distensibility (R0), elasticity (R2, R5, R7), and viscoelasticity (R6). Intra- and inter- relative reliabilities were determined using the intraclass correlation coefficient (ICC) (1,1) and ICC (2,1) methods, respectively. The absolute reliability was assessed via the Bland-Altman analysis. Moreover, we evaluated the minimal detectable change at a 95% confidence level (MDC95). RESULTS At each site, the ICC (1,1) values were >0.90, and the ICC (2,1) values were >0.50. The Bland-Altman analysis did not reveal any fixed errors, and several sites and parameters have proportional errors. CONCLUSIONS In this study, intra- and inter-reliabilities were measured at "excellent" and more than "moderate" levels, respectively. However, because some proportional errors were observed, the limits of reliability agreement should be considered when using the proposed methods. We believe that the results of this study can be applied to clinical research in field of rehabilitation treatment.
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Affiliation(s)
- Yudai Fujimoto
- Graduate School of Health Sciences, Morinomiya University of Medical Sciences, Osaka, Japan
- Department of Rehabilitation, Osaka International Cancer Institute, Osaka, Japan
| | - Yoshimi Yuri
- Graduate School of Health Sciences, Morinomiya University of Medical Sciences, Osaka, Japan
| | - Yuji Kato
- Department of Rehabilitation, Osaka International Cancer Institute, Osaka, Japan
| | - Shota Kinoshita
- Department of Rehabilitation, Osaka International Cancer Institute, Osaka, Japan
| | - Hironari Tamiya
- Department of Rehabilitation, Osaka International Cancer Institute, Osaka, Japan
- Department of Orthopaedic surgery (Musculoskeletal Oncology Service), Osaka International Cancer Institute, Osaka, Japan
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Nkengne A, Robic J, Lua BL. Self-perceived and objective measurements of facial puffiness in Chinese women. Skin Res Technol 2020; 27:385-392. [PMID: 33089925 DOI: 10.1111/srt.12955] [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: 05/10/2020] [Revised: 07/23/2020] [Accepted: 09/07/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Facial puffiness, caused by mild or normal fluid retention, commonly experienced by women, may not pose a health risk, but it can be a cause of cosmetic concern. The objectives of this study were to determine whether self-perceived facial puffiness can be measured objectively. MATERIALS AND METHODS A total of 151 Chinese women between 20 and 68 years of age were recruited. Facial water content, skin thickness, and elasticity were measured at two time points within a day (visit one occurred when the participants perceived they had facial puffiness; visit two occurred when the participants perceived their facial puffiness had subsided). Participants were also given a rating scale to self-evaluate their puffiness and firmness at different regions of the face. RESULTS The participants could perceive a difference in facial puffiness between the two visits. Water content and skin thickness were significantly higher in all regions of the face for all participants during the first visit. Skin elasticity was also significantly different between visits one and two. There was a significant increase in water content and skin thickness in the lower eyelid region in women who were older than 40 years. CONCLUSION This is the first study to show that self-perceived facial puffiness can be measured objectively and that skin elasticity can change significantly when facial puffiness subsides.
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Bacqueville D, Maret A, Noizet M, Duprat L, Coutanceau C, Georgescu V, Bessou-Touya S, Duplan H. Efficacy of a Dermocosmetic Serum Combining Bakuchiol and Vanilla Tahitensis Extract to Prevent Skin Photoaging in vitro and to Improve Clinical Outcomes for Naturally Aged Skin. Clin Cosmet Investig Dermatol 2020; 13:359-370. [PMID: 32494181 PMCID: PMC7231787 DOI: 10.2147/ccid.s235880] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 04/25/2020] [Indexed: 12/13/2022]
Abstract
Background Skin aging is characterized by slacking and loss of density, especially under ultraviolet (UV) radiation exposure. Objective To investigate the beneficial effects of a combination containing bakuchiol (BK) and vanilla tahitensis extract (VTE) to prevent skin photoaging in vitro and to improve clinical outcomes for naturally aged skin. Materials and Methods Human dermal fibroblasts were treated with active compounds, exposed to an acute dose of UVA and analyzed by confocal microscopy: actin network for morphology, interleukin-8 (IL-8) for inflammation and p16 for senescence. Human skin was used to evaluate chronic UVA-induced glycosaminoglycan (GAG) loss and to assess the benefit of topical application of a BK+VTE serum (Alcian blue staining). An open-label clinical trial was conducted in women applying the serum twice daily for 56 days (n=43). Skin remodeling was assessed by FaceScan®. Firmness was evaluated through Dynaskin® and clinical scoring. Skin radiance was also rated on standardized full-face photographs. Results UVA induced a significant increase in IL-8 and p16 expression and marked morphological changes in fibroblasts. Treatment with BK or VTE alone prevented both actin network alteration and IL-8 upregulation. Interestingly, BK+VTE demonstrated synergistic protection against IL-8 and p16 overexpression. Serum application prevented GAG loss at the dermo-epidermal junction and increased dermal GAG in UVA-exposed skin explants. In the clinical trial, face ptosis was reduced by 11% on average for 26 responsive subjects and up to 23%. Depth of skin deformation was also reduced by 24% on average for 30 responsive subjects and up to 30%. This firming effect was confirmed by clinical scoring. Radiance was significantly improved by 29% on average for 33 responsive subjects. The serum demonstrated good tolerance/safety. Conclusion BK+VTE combination demonstrated anti-aging efficacy and might provide a substantial benefit in the daily care of naturally aged skin in women, through their synergistic effect on inflammaging and senescence.
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Affiliation(s)
- Daniel Bacqueville
- Department of Pharmacology, Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - Anne Maret
- Clinical Skin Research Center, Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - Maïté Noizet
- Department of Pharmacology, Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | - Laure Duprat
- Department of Pharmacology, Pierre Fabre Dermo-Cosmétique, Toulouse, France
| | | | | | | | - Hélène Duplan
- Department of Pharmacology, Pierre Fabre Dermo-Cosmétique, Toulouse, France
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Monteiro Rodrigues L, Fluhr JW. EEMCO Guidance for the in vivo Assessment of Biomechanical Properties of the Human Skin and Its Annexes: Revisiting Instrumentation and Test Modes. Skin Pharmacol Physiol 2019; 33:44-60. [PMID: 31747675 DOI: 10.1159/000504063] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 10/10/2019] [Indexed: 11/19/2022]
Abstract
Biomechanics of the skin is an important subject in skin research. It has been studied for many decades involving various technologies and methods to characterize and quantify mechanical properties of the skin under different in vivo conditions. The present EEMCO paper reviews the current rel-evant information, providing practical orientation to researchers dedicated to in vivo assessment of biomechanics of skin and its annexes. We discuss the available non-invasive instruments, including their principles and variables. A correspondence between the descriptors nomenclature proposed by Agache and the designation for the suction-based standard instruments is proposed. The addressed properties include skin softness/stiffness, firmness, elasticity, elastic and viscoelastic properties, extensibility, resilience, anisotropy, acoustical shock wave hardness, friction (in relation to topographic properties), thickness, fiber/stress mechanics (bending, cyclic, tensile, fatigue, or torsion), and hardness. We provide the relation of these properties to biomechanical descriptors and in some cases to SI units. Practical guidance for the proper use of these instruments, limitations, and possible interpretations are provided, while discussing the meaning of descriptive or "phenomenological" variables. For studies intended to quantify the effect of an intervention with regard to mechanical properties, we recommend a minimum of 30-40 participants, based on normal distribution of the data sets. Some important limitations are recognized, including the lack of standardization of procedures and calibration of instruments, which compromises the relevance and real nature of the descriptors/parameters obtained with these devices. The present work highlights an approach to a better practice and a science-supported biomechanical assessment of human skin, hair, and nails.
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Affiliation(s)
- Luis Monteiro Rodrigues
- CBIOS - Universidade Lusófona Research Centre for Biosciences and Health Technologies, Lisbon, Portugal
| | - Joachim W Fluhr
- Department of Dermatology and Allergology, Charité - Universitätsmedizin Berlin, Berlin, Germany,
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Campiche R, Jackson E, Laurent G, Roche M, Gougeon S, Séroul P, Ströbel S, Massironi M, Gempeler M. Skin Filling and Firming Activity of a Hyaluronic Acid Inducing Synthetic Tripeptide. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-019-09827-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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