1
|
Xiao Y, Tao W, Shan X, Li D, Tao W, Qian H, Zhao Y, Zhang C. Components analysis of San-Bai decoction, and its pharmacodynamics and mechanism on preventing and treating melasma. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118388. [PMID: 38796069 DOI: 10.1016/j.jep.2024.118388] [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: 04/08/2024] [Revised: 05/17/2024] [Accepted: 05/23/2024] [Indexed: 05/28/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE San-Bai Decoction (SBD) is a classic whitening prescription originally recorded in the 'Introduction to Medicine' of the Ming Dynasty. SBD has been known for invigorating Qi and blood, promoting spleen and stomach, whitening skin, and fading melasma. However, its pharmacodynamic material basis and specific mechanism remain unclear. AIM OF THE STUDY The aim of this study is to clarify the pharmacodynamic material basis of SBD and its mechanism of removing melasma. MATERIALS AND METHODS The positive and negative ion mass spectrum data of SBD extract were collected by UHPLC-Q-Exactive Orbitrap MS/MS, imported into Compound Discoverer (CD) 3.1 software, matched through the online database, and manually checked. Finally, the in vitro chemical components of SBD were classified. Similarly, the mass spectrum data of SBD in the serum of normal rats and melasma model rats were also analyzed by CD 3.1 software. The in vitro identified Compound file of SBD was imported into the Expected Compounds and the Generate Expected Compounds project was selected. The SBD compounds were then chosen under the Compound Section. All phase I and II reaction types related to SBD components were selected, and the metabolic platform of CD 3.1 software was utilized to process the results and obtain possible metabolites. The metabolites were scored and products with high scores were subsequently screened. According to literature comparison, the final metabolites of SBD in both normal rats and melasma model rats were determined and comprehensively analyzed. The Melasma model rats were constructed through intramuscular injection of progesterone and ultraviolet radiation B (UVB) irradiation. The preventing and treating effect of SBD on melasma were evaluated by regulating inflammation, epidermal collagen content, and oxidative stress. Additionally, the effect of SBD on the Phosphatidylinositol 3-kinase (PI3K)/Protein kinase B (Akt)/Glycogen synthase kinase 3β (GSK3β) pathway was investigated through Western blot (WB) to explore its underlying mechanism on whitening and removing melasma efficacy. RESULTS Ultimately, 94 components were identified in SBD, including 41 flavonoids, 27 organic acids, and 9 glycosides, 3 terpenoids, 2 amides, 2 aldehydes, 1 phenylpropanoid and 9 other compounds. In the blood of normal rat group, a total of 24 prototype components and 61 metabolites were identified. Similarly, there were19 prototype components and 44 metabolites identified from the blood of melasma model rats. Pharmacodynamic experiment results indicated that SBD effectively reduced the incidence of melasma, prevent the loss of epidermal collagen, and elevate the activity of superoxide dismutase and decrease the malondialdehyde content in both liver and skin. Interestingly, the WB results demonstrated that SBD effectively activated PI3K/Akt/GSK3β pathway, and down-regulated the expression of melanin-related proteins. CONCLUSIONS For the first time, the components of SBD extracts, and its prototype components and metabolites in the blood of normal rats and melasma model rats were successfully identified by high-resolution liquid chromatography-mass spectrometry with CD software. Additionally, the differences of in vivo components of SBD between normal rats and melasma model rats were analyzed. The preventive and therapeutic effect of SBD on melasma was verified in the melasma model rats induced by progesterone and UVB irradiation, and its mechanism was related to activating PI3K/Akt/GSK3β pathway and downregulating the expression of melanin-related proteins. These results provide an experimental foundation for further research on the pharmacodynamic substance basis and pharmacodynamic mechanism of SBD, as well as developing new anti-melasma formula with SBD.
Collapse
Affiliation(s)
- Yaoyao Xiao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| | - Wenkang Tao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| | - Xiaoxiao Shan
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| | - Dawei Li
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| | - Wenwen Tao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| | - Haisheng Qian
- Anhui Med Univ, Anhui Prov Inst Translat Med, Res & Engn Ctr Biomed Mat, Sch Biomed Engn, Hefei, 230032, China.
| | - Yanan Zhao
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230000, China.
| | - Caiyun Zhang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China; Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, Grand Health Research Institute of Hefei Comprehensive National Science Center, Anhui University of Chinese Medicine, Hefei, 230012, China; Engineering Technology Research Center of Modern Pharmaceutical Preparation, Anhui Provincial Department of Education, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei, 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei, 230012, China.
| |
Collapse
|
2
|
Gambichler T, Erdogan G, Weyer-Fahlbusch SS, Susok L. Treatment-induced anogenital melanosis is a very frequent finding in patients with vulvar lichen sclerosus. Int J Womens Dermatol 2024; 10:e169. [PMID: 39015748 PMCID: PMC11251680 DOI: 10.1097/jw9.0000000000000169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 05/28/2024] [Indexed: 07/18/2024] Open
Abstract
Background Pigmented lesions such as melanosis have rarely been reported in patients with vulvar lichen sclerosus (VLS) that is typically characterized by hypopigmented lesions. Objective We aimed to analyze systematically anogenital melanosis in a large cohort of VLS patients. Methods We analyzed the clinical data of 198 female patients with VLS. The anogenital lesions of all patients were professionally photographed in a standardized position and illumination. Severity classification of architectural findings followed an easy-to-use clinical score. A modified Melasma Area and Severity Index and an image analysis software were used to evaluate the area and intensity of pigmentation. Results According to the clinical score, 79 (198/39.9%) patients showed grade 1 disease, 78 (198/39.4%) grade 2, 37 (198/18.7%) grade 3, and 4 (198/2%) grade 4 disease. About 111 (56.1%) of the 198 patients had anogenital melanosis with a median modified Melasma Area and Severity Index of 3.6 (0.4-14). Univariate analysis revealed that anogenital melanosis was positively correlated with the use of topical estrogens (P = .0018) and negatively correlated with the use of pulsed high-dose corticosteroids plus low-dose methotrexate (PHDC-LDM, P = .021). On multivariable analysis, the use of topical hormone therapy turned out to be a strong independent predictor for the presence of anogenital melanosis (odds ratio: 4.57, 95% confidence interval: 1.66-12.57, P = .0033), whereas PHDC-LDM use was an independent predictor for the absence of anogenital melanosis (odds ratio: 0.35, 95% confidence interval: 0.15-0.84, P = .018). Limitations The study includes the retrospective monocentric design. Conclusion Anogenital melanosis is a very frequent and so far, under-reported clinical finding in VLS patients. It is likely caused by the use of topical estrogens employed for VLS treatment. In contrast, patients with more severe disease and PHDC-LDM treatment appear to develop less likely anogenital melanosis.
Collapse
Affiliation(s)
- Thilo Gambichler
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
- Department of Dermatology, Christian Hospital Unna, Unna, Germany
- Department of Dermatology, Dortmund Hospital, University Witten/Herdecke, Dortmund, Germany
| | - Gülgün Erdogan
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
| | | | - Laura Susok
- Department of Dermatology, Ruhr-University Bochum, Bochum, Germany
- Department of Dermatology, Dortmund Hospital, University Witten/Herdecke, Dortmund, Germany
| |
Collapse
|
3
|
Xia Q, Wang Z, Tang Y, Luan X, Deng T, Fan L, Wu H, Li Y, Cui X, Zhao Y, Luo D. Exploring the influencing factors on acne, melasma, and rosacea: A case-control study in China. J Cosmet Dermatol 2024. [PMID: 39092840 DOI: 10.1111/jocd.16499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/15/2024] [Accepted: 07/19/2024] [Indexed: 08/04/2024]
Abstract
BACKGROUND The severity and treatment response of acne, melasma, and rosacea may be influenced by various currently unclear internal and external factors. This study aimed to provide evidence to the influencing factors for the mentioned conditions through a real-world case-control study. METHODS An online survey consisting of 60 questions was implemented, collecting information on demographics, socioeconomics, genetic factors, lifestyle habits, environmental exposures, and skin care behaviors. Then we constructed univariate and multivariate logistic regressions. Furthermore, we analyzed the dose-response relationship between exposure and outcome. RESULTS A total of 399 individuals, including 94 acne patients, 107 melasma patients, and 91 rosacea patients were included. Acne and melasma were positively correlated with screen time (acne: odds ratio [OR]: 2.24, 95% confidence interval [CI]: 1.25-4.02; melasma: OR: 1.59, 95% CI: 1.09-2.31), while exercise exerted a protective effect on both acne (OR: 0.31, 95% CI: 0.13-0.77) and melasma (OR: 0.42, 95% CI: 0.22-0.80) in a dose-response relationship. In addition, males were associated with an elevated risk of acne (OR: 6.62, 95% CI: 1.01-43.26). Aging (OR: 1.15, 95% CI: 1.07-1.24) and irregular bowel movements (OR: 2.99, 95% CI: 1.11-8.08) were independent risk factors for melasma. Rosacea was positively associated with BMI (OR: 1.17, 95% CI: 1.01-1.35). CONCLUSION In our study, we highlighted exercise as an independent protective factor for both acne and melasma in a dose-response trend. Inversely, extended use of electronic equipment was independently associated with higher risks of acne and melasma. Rosacea, however, was more likely to be related with BMI.
Collapse
Affiliation(s)
- Qingyue Xia
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Dermatology, China-Japan Friendship Hospital, Beijing, China
| | - Zhaopeng Wang
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yingdan Tang
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xingbao Luan
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Tianxurun Deng
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Lipan Fan
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Hongjin Wu
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- Department of Dermatology, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Yuan Li
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xiaomei Cui
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yang Zhao
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Dan Luo
- Department of Dermatology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| |
Collapse
|
4
|
Hara Y, Shibata T. Characteristics of dermal vascularity in melasma and solar lentigo. PHOTODERMATOLOGY, PHOTOIMMUNOLOGY & PHOTOMEDICINE 2024; 40:e12953. [PMID: 38353352 DOI: 10.1111/phpp.12953] [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: 08/24/2023] [Revised: 01/10/2024] [Accepted: 01/25/2024] [Indexed: 02/16/2024]
Abstract
BACKGROUND /PURPOSE Melasma and solar lentigo (SL) are major benign hyperpigmented lesions, and both have been shown to involve the dermal vasculature. This review discusses current knowledge regarding the clinical characteristics of dermal vascularity in melasma and SL, as well as the results of relevant molecular biological investigations. METHODS PubMed and Google Scholar were searched in December 2023 to identify articles related to melasma, SL, and the dermal vasculature in these lesions. RESULTS Vascular morphologies in melasma and SL have been detected by histological and non-invasive methods, including modalities such as optical coherence tomography. Biological studies have indicated that factors secreted from vascular endothelial cells, such as stem cell factor and endothelin-1, can promote melanogenesis. With respect to phototherapy, blood vessel-targeting laser treatments are expected to provide long-term suppression of pigmentation, but this regimen is only effective when dilated capillaries are visible. CONCLUSION In both melasma and SL, clinical and experimental investigations are revealing the contributions of dermal vascularity to hyperpigmentation. More effective treatment may require identification of hyperpigmentation subtypes. In the future, knowledge of treatment (including phototherapy) is expected to accumulate through reliable and validated non-invasive measurements.
Collapse
Affiliation(s)
- Yusuke Hara
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
| | - Takako Shibata
- MIRAI Technology Institute, Shiseido Co., Ltd., Yokohama, Japan
| |
Collapse
|
5
|
Xiao Y, Zhou L, Tao W, Yang X, Li J, Wang R, Zhao Y, Peng C, Zhang C. Preparation of paeoniflorin-glycyrrhizic acid complex transethosome gel and its preventive and therapeutic effects on melasma. Eur J Pharm Sci 2024; 192:106664. [PMID: 38061662 DOI: 10.1016/j.ejps.2023.106664] [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: 07/25/2023] [Revised: 11/15/2023] [Accepted: 12/04/2023] [Indexed: 12/22/2023]
Abstract
Paeoniflorin (PF) and glycyrrhizic acid (GL) have skin beautifying effects of anti-inflammation, anti-oxidation, inhibition of melanin formation, and reduction of skin pigmentation. To improve the transdermal permeability of PF and GL in transdermal drug delivery system (TDDS) and enhance their anti-melasma efficacy, PF-GL transethosome (PF-GL-TE) was prepared by ethanol injection method, and finally gelled with carbomer-940 to form PF-GL-TE gel. Consequently, the obtained PF-GL-TE is small and uniform, with an average particle size and a PDI value of about 167.9 nm and 0.102. PF-GL-TE gel showed sustained release behavior and high transdermal permeability in vitro release and transdermal tests. Meanwhile, PF-GL-TE gel played significant preventive effects on melasma induced by progesterone injection and ultraviolet radiation B (UVB) irradiation. According to the results of H&E staining and Masson staining of rat skin, PF-GL-TE gel can alleviate the skin inflammation of and reduce the loss of collagen fibers of back skin in the melasma model rats. Compared with the PF-GL mixture gel, PF-GL-TE gel significantly attenuated the oxidative damage of liver and skin by increasing the activity of SOD and reducing the content of MDA. The results of Western blot showed that PF-GL-TE gel might down-regulate melanin-related proteins expressions of MITF/TYR/TRP1 and TRP2 to prevent and treat melasma. These findings indicate that PF-GL-TE gel is an effective TDDS for delivering PF and GL into the skin, providing a promising preparation for effective prevention and treatment of melasma.
Collapse
Affiliation(s)
- Yaoyao Xiao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Lele Zhou
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Wenkang Tao
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Xuan Yang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Junying Li
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Rulin Wang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China
| | - Yanan Zhao
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei 230000, China.
| | - Can Peng
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China.
| | - Caiyun Zhang
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Center for Xin'an Medicine and Modernization of Traditional Chinese Medicine of IHM, School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Department of Education, Engineering Technology Research Center of Modern Pharmaceutical Preparation, China; Anhui Genuine Chinese Medicinal Materials Quality Improvement Innovation Collaborative Center, Hefei 230012, China; Institute of Pharmaceutics, Anhui Academy of Chinese Medicine, Hefei 230012, China; Anhui Key Laboratory of Compound Chinese Materia Medica, Hefei 230012, China.
| |
Collapse
|
6
|
Han Y, Zhang Y, Li B, Yang J, Qi Y, Liu Q, Chang S, Zhao H, Pan Y. Young Chinese female body skin pigmentation map: A pilot study. Skin Res Technol 2024; 30:e13567. [PMID: 38186064 PMCID: PMC10772469 DOI: 10.1111/srt.13567] [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: 11/25/2023] [Accepted: 12/16/2023] [Indexed: 01/09/2024]
Abstract
BACKGROUND Most studies have discussed variations in facial skin colour based on age, gender, and anatomical site within a specific ethnic group. However, skin pigmentation on the body is also a concern for many people. AIM The aim of this study is to gather baseline data for Chinese young females, conduct a comprehensive assessment of body skin pigmentation, and create a body skin pigmentation map. METHOD Individual type angle (ITA°) was registered by CL 400 and melanin index (MI) was registered by MX 18 in 100 body points of 20 Chinese females. A total of 12,000 measurements were recorded. RESULT Our results showed significant differences among the symmetrical points on both sides of the body, including the clavicle, inner wrists, groin, inner ankle, elbow, armpit, waist side, the space between the thumb and index finger, instep, back shoulder, and popliteal space. Of all the points tested on the body, the points with the most severe skin pigmentation were the back of the neck, the heel, the elbow, and the popliteal space. CONCLUSION This is the first comprehensive study of skin pigmentation conducted on the human body. In young Chinese women, the points with the most severe skin pigmentation were the back of the neck, heels, elbows, and the popliteal space.
Collapse
Affiliation(s)
- Yuqing Han
- Department of Cosmetics, School of Light Industry Science and EngineeringBeijing Technology and Business UniversityBeijingChina
- Beijing Key Laboratory of Plant Research and DevelopmentBeijingChina
| | | | - Benyue Li
- Shandong Huawutang Biotechnology Co., LtdJinanChina
| | - Jie Yang
- Shandong Huawutang Biotechnology Co., LtdJinanChina
| | - Yunji Qi
- Shandong Huawutang Biotechnology Co., LtdJinanChina
| | - Qi Liu
- Beijing EWISH Testing Technology Co., LtdBeijingChina
| | - Sisi Chang
- Beijing EWISH Testing Technology Co., LtdBeijingChina
| | - Hua Zhao
- Department of Cosmetics, School of Light Industry Science and EngineeringBeijing Technology and Business UniversityBeijingChina
- Beijing Key Laboratory of Plant Research and DevelopmentBeijingChina
| | - Yao Pan
- Department of Cosmetics, School of Light Industry Science and EngineeringBeijing Technology and Business UniversityBeijingChina
- Beijing Key Laboratory of Plant Research and DevelopmentBeijingChina
| |
Collapse
|
7
|
Song F, Wang Y, Wei XG, Yang N, Sun W, Li K, Ma H, Mu J. Proteomic Analysis of Two Different Methods to Induce Skin Melanin Deposition Models in Guinea Pigs. Clin Cosmet Investig Dermatol 2023; 16:2341-2356. [PMID: 37663883 PMCID: PMC10474869 DOI: 10.2147/ccid.s420501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 08/10/2023] [Indexed: 09/05/2023]
Abstract
Objective In this study, we analyzed the differential expression and key signaling pathways of proteins in the skin of guinea pigs with melanin deposition caused by two different modeling methods by utilizing proteomics techniques. Methods Guinea pig skin melanin deposition models were: (1) induced by ultraviolet (UV) irradiation alone (U group), (2) induced by UV combined with progesterone injection (P group), and guinea pigs treated without any treatment were used as blank group (B group). H&E staining and Masson staining were used to observe the extent of skin damage and melanin deposition in guinea pigs. The differentially expressed proteins (DEPs) in the skin tissues of melanin-deposited guinea pigs were screened by proteomic techniques, the functions of DEPs were analyzed, and a protein-protein interaction network (PPI) was constructed. Results There was a significant difference in grayscale between the U and P groups of guinea pig skin before and after modeling (P < 0.01). H&E and Masson staining showed that the U and P groups both exhibited incomplete keratinization of the stratum corneum, increased proliferation of epidermal cells with large nuclei and disordered arrangement, neovascularization of the dermis, and increased the number of melanin particles in the epidermis of the U and P groups of guinea pigs compared with the B group. Proteomics analysis showed that there were 171 DEPs between the U and P groups. These DEPs focused on biological processes such as fibrillar collagen trimer, extracellular matrix containing collagen proteins, metalloproteinase activity, and peroxidase activity. Conclusion The melanin pigmentation model induced solely by UV radiation negatively regulates biological processes such as extracellular matrix and collagen synthesis, while inducing significant skin photoaging. The combination of progesterone injections and UV radiation-induced melanin pigmentation model can cause abnormal protein expression in fatty acid and phospholipid metabolism, possibly being closer to the environment of melasma formation.
Collapse
Affiliation(s)
- Fei Song
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
- Key Laboratory of Modernization of Minority Medicine, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Yan Wang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Xiao-ge Wei
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
- Key Laboratory of Modernization of Minority Medicine, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Nan Yang
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Wenjing Sun
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Kaiying Li
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Huisheng Ma
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
- Key Laboratory of Modernization of Minority Medicine, Ministry of Education, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| | - Jing Mu
- College of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, Ningxia, People’s Republic of China
| |
Collapse
|
8
|
Liu W, Chen Q, Xia Y. New Mechanistic Insights of Melasma. Clin Cosmet Investig Dermatol 2023; 16:429-442. [PMID: 36817641 PMCID: PMC9936885 DOI: 10.2147/ccid.s396272] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/10/2023] [Indexed: 02/16/2023]
Abstract
Melasma is a common acquired disorder of pigmentation that negatively impacts quality of life. Present treatments show poor therapeutic effect with frequent recurrence. This in large part is due to the currently limited understanding of the disease's etiology. It is urgent to elucidate the pathogenesis of melasma to further the discovery of new therapeutic strategies. Recent studies show that melasma is triggered or aggravated by a variety of factors, including genetic susceptibility, ultraviolet radiation, and sex hormone dysregulation. Ultraviolet B radiation upregulates the expression of several melanocyte-specific genes and stimulates the release of key factors that participate in the synthesis of melanin. There is a significant increase in melanin in both the epidermal and dermal layers of affected skin, possibly due to abnormalities in crosstalk between the melanocytes and other cells. Melanogenesis is regulated through various signaling networks including the Wnt/β-catenin, PI3K/Akt, cAMP/PKA, and SCF/c-kit-mediated signaling pathways. In addition, inflammatory mediators, oxidative stress, neuroactive molecules, sebocytes, etc, have also been proved to be related to the pathogenesis of melasma. This review provides a comprehensive update on the current understanding of the pathogenesis of melasma.
Collapse
Affiliation(s)
- Wei Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710004, People’s Republic of China
| | - Qin Chen
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710004, People’s Republic of China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, 710004, People’s Republic of China,Correspondence: Yumin Xia, Department of Dermatology, The Second Affiliated Hospital of Xi’an Jiaotong University, 157 Xiwu Road, Xi’an, 710004, People’s Republic of China, Tel +86 29 87679969, Fax +86 29 87678425, Email
| |
Collapse
|
9
|
Liu C, He D, Yu A, Deng Y, Wang L, Song Z. Correlation analysis between gut microbiota characteristics and melasma. Front Microbiol 2022; 13:1051653. [PMID: 36466650 PMCID: PMC9714260 DOI: 10.3389/fmicb.2022.1051653] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 10/18/2022] [Indexed: 08/11/2023] Open
Abstract
In recent years, many studies have shown that the gut microbiota can affect the occurrence and development of a variety of human diseases. A variety of skin diseases are related to the regulation of the gut-skin axis, such as psoriasis, atopic dermatitis, and acne. Gut microbial dysbiosis can promote the development of these diseases. The gut microbiota can affect estrogen metabolism, β-glucuronidase secreted by the gut microbiota can promote the reabsorption of estrogen by the gut, and estrogen is transported to other parts of the body through the circulatory system. The occurrence and development of melasma are closely related to abnormal metabolism of estrogen. The relationship between the structure of the gut microbiota and melasma remains unclear. Epidemiological surveys were conducted in patients with melasma and healthy subjects (control group) in this study. The feces were collected for 16S rRNA sequencing analysis of the gut microbiota. To compare the similarities and differences in species diversity of the gut microbiota between these two groups, we calculated the α-diversity and β-diversity indices and analyzed the differences between them. We found that the abundance of Collinsella spp., Actinomyces spp. (belonging to Actinobacteria), Parabacteroides spp., Bacteroides spp., Paraprevotella spp. (belonging to Bacteroidetes), Blautia spp., and Roseburia spp. (belonging to Firmicutes) in the melasma group were significantly different compared with that in the healthy group. The largest difference was found in Actinobacteria (p < 0.05), and there were also significant differences in the abundance of Coriobacteriia, Actinobacteria, Coriobacteriales, Coriobacteriaceae, and Collinsella spp. between the two groups (all p < 0.05). Many of these differences in the microbiota were closely related to the production of β-glucuronidase and the regulation of estrogen synthesis or metabolism. Changes in the gut microbiota structure and the biological effects of Collinsella spp. in the microbiota in patients with melasma can play an important role in the occurrence and development of melasma by affecting the body's estrogen metabolism. This study provides a theoretical basis and experimental data reference for future studies on the relationship between the gut microbiota and melasma, and may be helpful for the prevention and treatment of melasma.
Collapse
Affiliation(s)
- Cong Liu
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Dan He
- Department of Pathogenobiology, Jilin University Mycology Research Center, Key Laboratory of Zoonosis Research, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Anye Yu
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yaru Deng
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Li Wang
- Department of Pathogenobiology, Jilin University Mycology Research Center, Key Laboratory of Zoonosis Research, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, China
| | - Zhiqi Song
- Department of Dermatology, First Affiliated Hospital of Dalian Medical University, Dalian, China
| |
Collapse
|
10
|
Amorphigenin from Amorpha fruticosa L. Root Extract Induces Autophagy-Mediated Melanosome Degradation in mTOR-Independent- and AMPK-Dependent Manner. Curr Issues Mol Biol 2022; 44:2856-2867. [PMID: 35877420 PMCID: PMC9318381 DOI: 10.3390/cimb44070196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/23/2022] [Accepted: 06/25/2022] [Indexed: 11/17/2022] Open
Abstract
In this study, we investigated the depigmentation effect of Amorpha fruticosa L. root extract (RE), an herbal medicine. A. fruticosa RE significantly induced depigmentation in α-MSH-treated B16F10 cells at noncytotoxic concentrations. Further, the RE decreased the protein levels of the melanosomal proteins Tyr and Pmel without decreasing their transcript levels. We found that MG132, a proteasome complex inhibitor, was unable to rescue the protein levels, but PepA/E-64D (a lysosomal enzyme inhibitor), 3-MA (a representative autophagy inhibitor), and ATG5 knockdown effectively rescued the protein levels and inhibited the depigmentation effect following RE treatment. Among rotenoids, amorphigenin composed in the RE was identified as a functional chemical that could induce depigmentation; whereas rapamycin, an mTOR inhibitor and a nonselective autophagy inducer, could not induce depigmentation, and amorphigenin effectively induced depigmentation through the degradation of melanosomal proteins. Amorphigenin activated AMPK without affecting mTOR, and knockdown of AMPK offset the whitening effect through degradation of melanosome proteins by amorphigenin. Results from this study suggested that amorphigenin can induce degradation of the melanosome through an AMPK-dependent autophagy process, and has the potential to be used as a depigmentation agent for the treatment of hyperpigmentation.
Collapse
|
11
|
Niazi S, Gheisari M, Moravvej H, Doroodgar F, Niazi F. Efficacy of Cysteamine and Methimazole in Treating Melasma A Comparative Narrative Review. J Cosmet Dermatol 2022; 21:3867-3875. [PMID: 35751542 DOI: 10.1111/jocd.15180] [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: 11/25/2021] [Revised: 05/29/2022] [Accepted: 06/20/2022] [Indexed: 11/29/2022]
Abstract
Melasma is a chronic and acquired pigmentary condition that primarily affects women and undermines patient satisfaction and confidence. Melasma mostly affects females, accounting for 90% of all cases. It affects people of all races, particularly those with skin types IV and V who live in areas with lots of UV radiation. According to the studies, Melasma lesions are seen throughout the face in centrofacial, malar, and mandibular patterns. Melasma lesions on the forehead, cheeks, nose, upper lip, and/or chin are the most prevalent centrofacial pattern. Melasma lesions can also be detected along the periorbital area, especially in Asian people. Melasma is notably resistant to treatment, with many patients experiencing only temporary relief and relapses. Combining therapies that target numerous pathologic components, including photodamage, inflammation, aberrant vascularity, and abnormal pigmentation, generally results in the most dramatic therapeutic improvements. Treatments for dark circles include topical depigmenting medicines like hydroquinone, kojic acid, azelaic acid, and topical retinoic acid, and physical treatments such as chemical peels, surgical adjustments, and laser therapy. The objective of therapy should be to figure out what's causing the hyperpigmentation and what's contributing to it. This article provides an overview of melasma therapies and the efficacy of methimazole and cysteamine for melasma therapy.
Collapse
Affiliation(s)
- Sana Niazi
- Medical Students Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Gheisari
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Dermatology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamideh Moravvej
- Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farideh Doroodgar
- Negah Specialty Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Feizollah Niazi
- Clinical Research Development Center, Shahid Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| |
Collapse
|
12
|
Pennitz A, Kinberger M, Avila Valle G, Passeron T, Nast A, Werner RN. Self-applied topical interventions for melasma: a systematic review and meta-analysis of data from randomized, investigator-blinded clinical trials. Br J Dermatol 2022; 187:309-317. [PMID: 35290681 DOI: 10.1111/bjd.21244] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 03/03/2022] [Accepted: 03/11/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND Melasma is a frequent dermatological condition. Although its relevance as a skin condition is primarily of cosmetic nature, it may affect the patients' well-being and quality of life. A broad range of treatment options is available, which makes it difficult to choose the most appropriate treatment. OBJECTIVES To summarise and critically appraise evidence from investigator-blinded RCTs on the efficacy and safety of self-applied topical interventions for melasma. METHODS We systematically searched MEDLINE and Cochrane CENTRAL for RCTs on topical, self-administered interventions for patients diagnosed with melasma. Eligibility was limited to RCTs that explicitly stated in their methods section (1) how they generated the random allocation sequence, and (2) that the study outcome assessor was blinded towards the participants' group allocation. Outcomes of interest included evaluator-assessed clinical scores (e.g., melasma area and severity index, MASI), quality of life, and patient-reported outcomes as well as safety outcomes. The study findings were meta-analysed, pooling data from studies on the same comparisons, if this was possible. We assessed confidence in the effect estimates using the GRADE approach. RESULTS Our searches yielded 1,078 hits. We included 36 studies reporting on 47 different comparisons of interventions. These included medical treatments such as 'triple combination cream' (TCC), over-the-counter cosmetic and herbal products, as well as sun creams covering different light spectra. Pooling data was possible for only two comparisons (topical tranexamic acid (TXA) vs. hydroquinone (HQ) and cysteamine vs. placebo). Direct comparisons were available for a variety of interventions; however, the reported outcomes varied largely. Overall, our confidence in the effect estimates ranged from very low to high. CONCLUSION Our findings indicate that TCC and its individual components HQ and tretinoin are effective in lightening melasma. Besides these established self-applied treatment options, we identified further medical as well as promising cosmetic and herbal product treatment approaches. Furthermore, evidence suggests that using broad-spectrum sunscreen covering both the visible and UV-light spectrum enhances the treatment efficacy of HQ. However, with mostly small RCTs comparing treatments directly, using a broad range of outcomes, further research is needed to draw conclusions about which treatment is most effective.
Collapse
Affiliation(s)
- Antonia Pennitz
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology; Charitéplatz 1, 10117, Berlin, Germany
| | - Maria Kinberger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology; Charitéplatz 1, 10117, Berlin, Germany
| | - Gabriela Avila Valle
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology; Charitéplatz 1, 10117, Berlin, Germany
| | - Thierry Passeron
- Côte d'Azur Université. CHU Nice. Department of Dermatology. Nice, France.,Côte d'Azur University. INSERM U1065. C3M. Nice, France
| | - Alexander Nast
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology; Charitéplatz 1, 10117, Berlin, Germany
| | - Ricardo N Werner
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Dermatology, Venereology and Allergology; Charitéplatz 1, 10117, Berlin, Germany
| |
Collapse
|
13
|
Reple SIF, de Oliveira DTG, Perez MM, da Veiga GL, da Cunha MG, Fonseca FLA, da Costa Aguiar Alves B. Genotoxicity of permanent hair dye associated with melasma. J Cosmet Dermatol 2022; 21:5252-5253. [PMID: 35182008 DOI: 10.1111/jocd.14867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 02/16/2022] [Indexed: 12/01/2022]
Affiliation(s)
- Sonia Isabel Friedlaender Reple
- Laboratório de Análises Clínicas do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil
| | | | - Matheus Moreira Perez
- Laboratório de Análises Clínicas do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil
| | - Gláucia Luciano da Veiga
- Laboratório de Análises Clínicas do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil
| | - Marisa Gonzaga da Cunha
- Disciplina de Dermatologia do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil
| | - Fernando Luiz Affonso Fonseca
- Laboratório de Análises Clínicas do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil.,Departamento de Ciências Farmacêuticas da, Universidade Federal de São Paulo, Rua Prof. Artur Riedel, 275, 09972-270, Diadema, SP, Brazil
| | - Beatriz da Costa Aguiar Alves
- Laboratório de Análises Clínicas do Centro Universitário FMABC, Av. Príncipe de Gales, 821, 09060-650, Santo André, SP, Brazil
| |
Collapse
|
14
|
Wenner K, Ramberg T. An Open-Label Study Assessing the Efficacy and Tolerability of a Skincare Regimen in Subjects of Different Ethnicities with Moderate-to-Severe Hyperpigmentation. J Cosmet Dermatol 2021; 21:2497-2507. [PMID: 34658136 PMCID: PMC9297970 DOI: 10.1111/jocd.14447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/24/2021] [Indexed: 11/28/2022]
Abstract
Background Hyperpigmentation is a common cosmetic concern that significantly impacts self‐esteem. A skincare regimen has been developed to improve the appearance, tone, texture, and luminosity of subjects with facial hyperpigmentation (Even Up® Hyperpigmentation Regimen; Colorescience, Inc., Carlsbad, CA). Aims The objective of this open‐label trial was to assess the efficacy and tolerability of this regimen for treating facial hyperpigmentation. Patients/Methods Subjects with moderate‐to‐severe facial hyperpigmentation (N = 33) were randomized to those not using prescription, advanced or physician‐dispensed skin care products (Group A, n = 23) and those currently using prescription, advanced or physician‐dispensed skincare products for facial hyperpigmentation (Group B, n = 10). Both groups were provided three skincare products comprising the hyperpigmentation regimen and instructions for use. Subjects were evaluated at baseline and Weeks 2, 4, 8 and 12. Results The overall median (range) baseline MASI score at baseline was 9.0 (2, 31), decreasing by 0.0 (−7, 0) points at Week 2 (p = 0.002), 0.6 (−8, 0) points at Week 4 (p < 0.0001), 1.5 (−16, 0) points by Week 8 (p < 0.0001) and 2.4 (−20, 0) points at Week 12 (p < 0.0001). At Week 12, the overall median improvement in MASI score was 26% and higher for Group B (32% vs. 22%). By Week 2, subjects reported lighter, less noticeable brown spots (76%), brighter, more luminous skin (88%), more even skin tone (67%), and healthier look and feel (85%). Improvements continued throughout the study. No adverse events were observed or reported. Conclusions This regimen addresses facial hyperpigmentation and protects skin against the damaging effects of ultraviolet and high energy visible light (HEV). It is safe to use on all skin types and tones.
Collapse
|
15
|
Enkhtaivan E, Lee CH. Role of Amine Neurotransmitters and Their Receptors in Skin Pigmentation: Therapeutic Implication. Int J Mol Sci 2021; 22:ijms22158071. [PMID: 34360837 PMCID: PMC8348573 DOI: 10.3390/ijms22158071] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/09/2021] [Accepted: 07/24/2021] [Indexed: 12/27/2022] Open
Abstract
Skin pigmentation can occur due to increased melanin, including melanocyte proliferation, melanin biosynthesis, or melanocyte migration. There are many factors that influence the melanin production process, but the role of neurotransmitters in this process is still unclear. We found that histamine and serotonin influence the different stages of melanogenesis and melanogenesis, which increase melanogenesis. Since then, several related papers have been published, and from these papers, it has been recognised that the role of neurotransmitters in skin-pigment-related diseases needs to be summarised. By introducing the role of neurotransmitters in the regulation of various pigment disorders, including vitiligo and melasma, through this review, many researchers can be expected to try to apply neurotransmitter-related agonists and antagonists as treatments for skin pigment disorders.
Collapse
|