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Chen LY, Niu W, Lim K, Solomon JA. Recommendations From a Chinese-Language Survey of Knowledge and Prevention of Skin Cancer Among Chinese Populations Internationally: Cross-sectional Questionnaire Study. JMIR DERMATOLOGY 2023; 6:e37758. [PMID: 37632936 PMCID: PMC10335128 DOI: 10.2196/37758] [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: 03/06/2022] [Revised: 01/13/2023] [Accepted: 01/30/2023] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND There is a paucity of studies assessing awareness and prevention of skin cancer among Chinese populations. OBJECTIVE The aim of the study is to compare attitudes and practices regarding skin cancer risks and prevention between Chinese Asian and North American Chinese populations and between Fitzpatrick scores. METHODS A cross-sectional, internet-based, 74-question survey in Chinese was conducted focusing on Han Chinese participants internationally. The survey included Likert-type scales and multiple-choice questions. All participants were required to read Chinese and self-identify as being 18 years or older and Chinese by ethnicity, nationality, or descent. Participants were recruited on the internet over a 6-month period from July 2017 through January 2018 via advertisements in Chinese on popular social media platforms: WeChat, QQ, Weibo, Facebook, and Twitter. RESULTS Of the 113 completed responses collected (participation rate of 65.7%), 95 (84.1%) were ethnically Han Chinese, of which 93 (96.9%) were born in China and 59 (62.1%) were female. The mean age of these 95 participants was 35.8 (SD 13.3) years; 72 (75.8%) participants were born after 1975. Few but more North American Chinese reported that Chinese Asian populations received annual skin checks (4/30, 4.2% vs 0/65, 0%; P=.009) and believed that their clinician provided adequate sun safety education (13/30, 43.3% vs 15/65, 23.1%; P=.04). Participants with higher Fitzpatrick scores less frequently received sun safety education from a clinician (4/34, 11.8% vs 22/61, 36.1%; P=.02). More participants with lower Fitzpatrick scores used sunscreen (41/61, 67.2% vs 16/34, 47.1%; P=.05), but alternative sun protection use rates are similar across groups. CONCLUSIONS Cultural differences and Fitzpatrick scores can affect knowledge and practices with respect to sun protection and skin cancer among social media-using Chinese Asian and North American Chinese communities based on respondent demographics. Most participants in all groups understood that people of color have some risk of skin cancer, but >30% of all groups across regions and Fitzpatrick scores are unaware of current skin protection recommendations, receive insufficient sun safety education, and do not use sunscreen. Outreach efforts may begin broadly with concerted public and private efforts to train and fund dermatologists to perform annual total body skin exams and provide more patient education. They should spark community interest through mass media and empower Chinese people to perform self-examinations and recognize risks and risk mitigation methods.
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Affiliation(s)
- Lily Ye Chen
- College of Medicine, University of Central Florida, Orlando, FL, United States
| | - Wei Niu
- College of Medicine, University of Central Florida, Orlando, FL, United States
- Health Sciences Center New Orleans, Louisiana State University, New Orleans, LA, United States
| | - Kristina Lim
- Division of Dermatology, Lehigh Valley Health Network, Allentown, PA, United States
| | - James A Solomon
- College of Medicine, University of Central Florida, Orlando, FL, United States
- College of Medicine, Florida State University, Tallahassee, FL, United States
- Carle Illinois College of Medicine, University of Illinois Urbana-Champaign, Champaign, IL, United States
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Commentary: Facial Aesthetic Dermatological Procedures and Photoprotection in Chinese Populations. Dermatol Ther (Heidelb) 2022; 13:13-27. [PMID: 36417087 PMCID: PMC9823167 DOI: 10.1007/s13555-022-00862-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/10/2022] [Indexed: 11/24/2022] Open
Abstract
The medical literature on aesthetic dermatology has primarily focused on a light-skinned patient population, yet patients of darker skin types have different needs and priorities. In Chinese individuals, key concerns include altered pigmentation, which is perceived to age the individual, and also relates to the Chinese cultural standard of beauty of fair skin; many seek aesthetic treatment for this. Non-invasive cosmetic procedures such as lasers and injections are also gaining in popularity in the Chinese market, but this population is prone to hyperpigmentation as an adverse effect of such procedures. Considered and tailored approaches, both to primary concerns of photoaging and the side effects of cosmetic treatments, are warranted.
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Yi F, Yang XX, Yang RY, Zhao MM, Dong YM, Li L, He YF, Guo MM, Li J, Zhang XH, Lu Z, Gu J, Bao JL, Meng H. A cross-sectional study of Chinese women facial skin status with environmental factors and individual lifestyles. Sci Rep 2022; 12:18110. [PMID: 36302888 PMCID: PMC9613773 DOI: 10.1038/s41598-022-23001-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 10/21/2022] [Indexed: 12/30/2022] Open
Abstract
Geographical, environmental and pollution conditions affect facial skin health, but their effects on skin appearance have not been elucidated. This study aimed to describe the skin barrier and skin tone characteristics of Chinese subjects according to lifestyle and environmental conditions using in vitro measurements. In total, 1092 women aged 22-42 years were recruited from 7 representative Chinese cities. Eight skin parameters (hydration, sebum, pH, transdermal water loss, individual type angle, melanin index, erythema index, yellowness) were measured using noninvasive instruments; individual lifestyle data were also collected. Data on four meteorological factors (air temperature, relative humidity, sunshine duration, wind speed) and seven air pollution indicators (air quality index, fine particulate matter, breathable particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide and ozone) were collected in each city from the China Meteorological Administration. Facial skin characteristics differed significantly between cities. Facial skin barrier characteristics and skin tones showed regional differences, with a better skin barrier associated with the western region, as indicated by high skin hydration and sebum secretion and a low pH value. According to the value of transdermal water loss, lighter and darker skin tones were found in the western and southern regions, respectively. Environmental conditions affected facial skin status. Air pollution induced facial skin issues, with fine particulate matter and nitrogen dioxide contributing the most. Individual lifestyles affected the facial skin barrier and skin tone.
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Affiliation(s)
- Fan Yi
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Xiao-xiao Yang
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Ru-ya Yang
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Meng-meng Zhao
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Yin-mao Dong
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Li Li
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Yi-fan He
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Miao-miao Guo
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
| | - Jing Li
- Eviskin Cosmetics Technology (Beijing) Co., Ltd., Beijing, People’s Republic of China
| | - Xiao-hui Zhang
- Eviskin Cosmetics Technology (Beijing) Co., Ltd., Beijing, People’s Republic of China
| | - Zhi Lu
- Shanghai Inoherb Cosmetic Co., Ltd., Shanghai, People’s Republic of China
| | - Jie Gu
- Shanghai Inoherb Cosmetic Co., Ltd., Shanghai, People’s Republic of China
| | - Jing-lin Bao
- Shanghai Inoherb Cosmetic Co., Ltd., Shanghai, People’s Republic of China
| | - Hong Meng
- grid.411615.60000 0000 9938 1755Key Laboratory of Cosmetic, China National Light Industry, Beijing Technology and Business University, Beijing, People’s Republic of China
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Wang L, Shan Y, Dai X, You N, Shao J, Pan X, Gao T, Ye J. Clinicopathological analysis of 5146 eyelid tumours and tumour-like lesions in an eye centre in South China, 2000-2018: a retrospective cohort study. BMJ Open 2021; 11:e041854. [PMID: 33500284 PMCID: PMC7839916 DOI: 10.1136/bmjopen-2020-041854] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES To describe the clinicopathological characteristics of patients with eyelid tumours and tumour-like lesions in South China, investigate possible factors affecting tumour constitution. DESIGN Retrospective cohort study. SETTING All patients diagnosed with eyelid tumours were included from a high-volume tertiary eye care centre from South China which caring for over 2000 patients per day. All biopsied specimens were reviewed by two senior pathologists and were classified according to the fourth edition of the WHO Classification of Skin Tumours. PARTICIPANT A total of 5146 cases of eyelid lesions were reviewed from 2000 to 2018, being classified by histogenesis and pathologic diagnosis, being compared with data from previous literature containing different races. MAIN OUTCOME MEASURES Age-specific and gender-specific incidence constitutions, time trends, tumour location, distribution in different age groups and relationship with Sociodmographic Index (SDI) were calculated. RESULTS Benign tumours accounted for 85.08% (4378) of all cases, among which, nevus was most common (33.07%). Eight of top 10 benign lesions had higher occurrence in upper eyelids. The R² value of linear regression in patient annual number of benign lesions were 0.946 (p<0.01) for male and 0.914 (p<0.01) for female. More than 33.60% (1471/4378) were made up by patients younger than 40 years. The number of patients undergoing removal of benign lesions decreased with age. Among the malignant lesions, basal cell carcinoma (BCC) was most prevalent (48.70%), followed by sebaceous gland carcinoma (34.24%) and majority (81.8%) occurred in patients above 60 years. CONCLUSIONS Over the past 19 years, most eyelid tumours occurred at our centre were benign lesions. The number of patients presenting with benign lesions increased in both genders, especially among young females who were more likely to request surgeries. Among malignant lesions, BCC remains the most common type, appears a higher incidence in countries with higher SDI.
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Affiliation(s)
- Linyan Wang
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
- Department of Ophthalmology, University of California San Francisco, San Francisco, California, USA
| | - Yi Shan
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
| | - Xizhe Dai
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
| | - Na You
- Hengdian Wenrong Hospital, Jinhua, China
| | - Ji Shao
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
| | - Xiangji Pan
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
| | - Tao Gao
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
| | - Juan Ye
- Department of Ophthalmology, Zhejiang University School of Medicine Second Affiliated Hospital, Hangzhou, China
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Zhang Y, Ma L, Gao Y, Yuan C. Seasonal variation of skin photoreaction and biophysical properties in Chinese. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2020; 37:63-65. [PMID: 33016474 DOI: 10.1111/phpp.12616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 08/06/2020] [Accepted: 09/27/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Yiyi Zhang
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - Li Ma
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - Yanrui Gao
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - Chao Yuan
- Skin & Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
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Minimal Erythema Dose: Correlation with Fitzpatrick Skin Type and Concordance Between Methods of Erythema Assessment in a Patient Sample in Colombia. ACTAS DERMO-SIFILIOGRAFICAS 2020. [DOI: 10.1016/j.adengl.2019.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Minimal Erythema Dose: Correlation with Fitzpatrick Skin Type and Concordance Between Methods of Erythema Assessment in a Patient Sample in Colombia. ACTAS DERMO-SIFILIOGRAFICAS 2020; 111:390-397. [PMID: 32408973 DOI: 10.1016/j.ad.2019.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 11/21/2019] [Accepted: 12/24/2019] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE The minimal erythema dose (MED), an essential measurement in studies of skin photosensitivity, requires establishing MED values for specific populations, given genetic variation. Different ways to assess erythema are also relevant. We aimed to determine MED values in a sample of Colombian patients and correlations between MED and Fitzpatrick skin type. We also studied concordance correlation between MEDs and two alternative ways to assess erythema. PATIENTS AND METHODS Cross-sectional study of 113 individuals in Bogotá, Colombia. We used a solar simulator to measure UV-A radiation and combined UV-A and UV-B (UVA+UVB) radiation, o se podría suprimir este término porque UVA y UVB son términos conocidos for MED calculation. Narrowband UV-B (NBUVB) radiation was measured in a phototherapy cabin. Erythema was assessed visually and with a Mexameter MX 18 device. RESULTS The median MEDs of UVA+UVB radiation were 22mJ/cm2 for Fitzpatrick skin typesI andII, and 33 and 43mJ/cm2, respectively, for typesIII andIV. The MEDs of UV-A radiation were 22, 42, 86, and 100J/cm2 for typesI, II, III, andIV, respectively. The MEDs of NBUVB light were 390, 550, 770, and 885mJ/cm2 for the 4 skin types. The correlation between MEDs and skin types ranged from 0.5 to 0.69. Lin's concordance correlation coefficients between visual and Mexameter assessments of erythema were greater than 0.8 in all cases. CONCLUSION This study allowed us to understand MED values for UV-A, UVA+UVB, and NBUVB according to different skin types in the Colombian population. Concordance correlation coefficients between the different methods of erythema assessment were very good. Correlations between MEDs and skin types were moderate to good.
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Abstract
CONTEXT Peripubertal and adolescent children are vulnerable to vitamin D deficiency as this is the period of rapid skeletal growth. AIMS This study was done to assess the vitamin D status in school children between the age of 8-14 years attending the government schools in rural and urban areas of Assam in Northeast India. SETTINGS AND DESIGN This was a cross-sectional observational study. MATERIALS AND METHODS About 500 students (350 from rural and 150 from urban areas) were recruited in the study. Serum 25-hydroxy vitamin-D [25(OH)D], parathyroid hormone (PTH), calcium, phosphorus and alkaline phosphatase were measured in fasting state. Daily nutrition intake and sunlight exposure were assessed. STATISTICAL ANALYSIS Student's t-test and Pearson correlation test were done to assess the association between different variables. P value <0.05 was considered significant. RESULTS The prevalence of vitamin D deficiency was 8.4% and vitamin D insufficiency was 14.2%. There was no significant difference of mean 25(OH)D levels and sun exposure between rural and urban children. Out of 42 children with vitamin D deficiency, 36 (85.7%) had sun exposure <20% and 41 (97.6%) had calcium intake < 1000 mg/day. The rural children had a higher calcium intake as compared to urban children (P = 0.005). There was a significant positive correlation of mean 25(OH)D levels with serum calcium, sun exposure and calcium intake. CONCLUSION The prevalence of vitamin D deficiency in peripubertal and adolescent age group children in and around Guwahati city of Assam is comparatively lower than that in other parts of the country.
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Affiliation(s)
- Dipti Sarma
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
| | - Uma K. Saikia
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
| | - Abhamoni Baro
- Department of Endocrinology, Gauhati Medical College and Hospital, Guwahati, Assam, India
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Liu L, Huang J, Wang Y, Li Y. Risk factors of striae gravidarum in Chinese primiparous women. PLoS One 2018; 13:e0198720. [PMID: 29927959 PMCID: PMC6013206 DOI: 10.1371/journal.pone.0198720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Accepted: 05/06/2018] [Indexed: 11/19/2022] Open
Abstract
Background Striae gravidarum is a common skin problem of considerable cosmetic concern for many pregnant women. Various risk factors associated with the development of striae have been reported, with conflicting results. Objectives To analyze the risk factors of striae gravidarum in Chinese primiparous women and to provide evidence relevant to the prevention of this condition. Methods Singleton primiparous pregnant women who were hospitalized for delivery were included, and relevant data were collected. Independent risk factors associated with striae gravidarum in women with and those without striae gravidarum were identified using logistic regression. Results Among 213 singleton primiparous pregnant women, 125 had striae gravidarum, yielding a prevalence of up to 58.9%. There was a significant variation (P < 0.05, odds ratio >1) between the striae gravidarum and non-striae gravidarum groups in terms of several factors, including younger maternal age, weight gain during pregnancy, body mass index gain, uterine height, abdominal girth, and positive family history. Factors such as maternal height, birth weight, systemic disease, skin type, and neonatal gender did not significantly differ between the 2 groups. Conclusion This study showed that the independent risk factors for striae gravidarum in primiparous women were younger maternal age, weight gain during pregnancy, body mass index gain, uterine height, abdominal girth, and a positive family history. The severity of striae gravidarum was associated with weight gain during pregnancy, body mass index gain, abdominal girth, and timing of the onset of striae gravidarum.
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Affiliation(s)
- Liping Liu
- Department of Dermatology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Regeneration Medicine Research Center, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jianling Huang
- Department of Dermatology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Regeneration Medicine Research Center, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- The Central Hospital of Xiaogan, Xiaogan, Hubei, China
| | - Ying Wang
- Department of Dermatology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Regeneration Medicine Research Center, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yumei Li
- Department of Dermatology, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- Regeneration Medicine Research Center, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
- * E-mail:
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Cho C, Ruan P, Lee E, Ha J. Comparison of skin color between two Asian populations: according to latitude and UV exposure. J Cosmet Dermatol 2015; 14:22-6. [DOI: 10.1111/jocd.12130] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2014] [Indexed: 11/30/2022]
Affiliation(s)
- Changhui Cho
- Institut d'Expertise Clinique Korea; Suwon Korea
| | - Peiyi Ruan
- Institut d'Expertise Clinique China; Guangzhou China
| | - Eunyoung Lee
- Institut d'Expertise Clinique Korea; Suwon Korea
| | - Jaehyoun Ha
- Institut d'Expertise Clinique Korea; Suwon Korea
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Liu W, Wang X, Lai W, Yan T, Wu Y, Wan M, Yi J, Matsui MS. Sunburn protection as a function of sunscreen application thickness differs between high and low SPFs. PHOTODERMATOLOGY PHOTOIMMUNOLOGY & PHOTOMEDICINE 2012; 28:120-6. [PMID: 22548392 DOI: 10.1111/j.1600-0781.2012.00650.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Sunscreens are an important component of healthy sun-protection behavior. To achieve satisfactory protection, sunscreens must be applied consistently, evenly and correctly. Consumers do not apply sunscreen properly and, therefore, do not achieve the protection indicated by the label 'sun protection factor' (SPF). The objective of the present study was to determine the actual sun(burn) protection given by a range of sunscreen application thickness levels for both low and high SPF formulas. SUBJECTS AND METHODS Forty study subjects were recruited from each of three geographical regions in China. Sunscreens with label SPFs of 4, 15, 30, and 55 were tested at application levels of 0.5, 1.0, 1.5, and 2.0 mg/cm(2) in three laboratories using a standard SPF protocol. RESULTS Sunscreens with lower SPFs (4 and 15) showed a linear dose-response relationship with application level, but higher SPF (30 and 55) product protection was exponentially related to application thickness. CONCLUSION Sunscreen protection is not related in one uniform way to the amount of product applied to human skin. Consumers may achieve an even lower than expected sunburn protection from high SPF products than from low SPF sunscreens.
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Affiliation(s)
- Wei Liu
- Department of Dermatology, The Air Force General Hospital, Beijing, China
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Xia MN, Wang XM, Liu YQ, Yuan C, Zou Y, Fan GB. Relationship between skin parameters (darkness or thickness) and photoreaction of Chinese Han skin. Cutan Ocul Toxicol 2012; 31:306-11. [PMID: 22452487 DOI: 10.3109/15569527.2012.668599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Skin pigmentation and the stratum corneum are the two primary natural factors that protect against UV damage. Although several classification systems exist to quantify the ability of the skin to protect itself from damaging UV radiation, few reports have assessed skin parameters and photoreaction in persons of Han Chinese descent. AIMS To understand the relationship between skin darkness, skin thickness, and photoreaction in Chinese Han subjects. METHODS Thirty-one subjects were exposed to UVA and UVB. Minimal persistent pigment darkening dose (MPPD) and minimal erythema dose (MED) were obtained. Before the UV irradiation, the test sites were measured by the Mexameter MX 16, Chromameter CR400, and Skin B-ultrasonic to determine skin color and thickness>. Using the ratio of J(MPPD)/J(MED), we classified the subjects into four energy skin phototypes (ESPTs) and the skin parameters for each of these groups were analyzed. RESULTS Skin color and skin thickness were significantly different among the ESPTs. There was also a significant positive correlation between skin group and the skin color and thickness parameters (b*, melanin index [MI], thickness). As the ESPTs increased from ESPT A to ESPT D, the mean dose to achieve MED increased, while the MPPD decreased. CONCLUSION As the ESPTs increased from type A to type D, there was a proclivity to tan rather than burn. Similarly, the skin became darker and thicker as the phototype increased from A to D.
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Affiliation(s)
- Mi-Na Xia
- Dermatological Department, Third affiliated hospital of Xuzhou Medical College, Xuzhou, China
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Yuan XY, Liu W, Hao JC, Gu WJ, Zhao YS. Topical Grape Seed Proanthocyandin Extract Reduces Sunburn Cells and Mutant p53 Positive Epidermal Cell Formation, and Prevents Depletion of Langerhans Cells in an Acute Sunburn Model. Photomed Laser Surg 2012; 30:20-5. [PMID: 22103910 DOI: 10.1089/pho.2011.3043] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Affiliation(s)
- Xiao-Ying Yuan
- Department of Dermatology, the General Hospital of the Air Force, Beijing, China
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - Wei Liu
- Department of Dermatology, the General Hospital of the Air Force, Beijing, China
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - Jian-Chun Hao
- Department of Dermatology, the General Hospital of the Air Force, Beijing, China
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - Wei-Jie Gu
- Department of Dermatology, the General Hospital of the Air Force, Beijing, China
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
| | - Yan-Shuang Zhao
- Department of Dermatology, the General Hospital of the Air Force, Beijing, China
- Department of Dermatology, No.1 Hospital of China Medical University, Shenyang, China
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Magin P, Pond D, Smith W, Goode S, Paterson N. Reliability of skin-type self-assessment: agreement of adolescents’ repeated Fitzpatrick skin phototype classification ratings during a cohort study. J Eur Acad Dermatol Venereol 2011; 26:1396-9. [DOI: 10.1111/j.1468-3083.2011.04298.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Luu M, Boone SL, Patel J, Sullivan P, Rademaker AW, Balagula Y, Lacouture ME. Higher severity grade of erlotinib-induced rash is associated with lower skin phototype. Clin Exp Dermatol 2011; 36:733-8. [DOI: 10.1111/j.1365-2230.2011.04117.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Li YH, Wu Y, Chen JZ, Zhu X, Xu YY, Chen J, Dong GH, Gao XH, Chen HD. A split-face study of intense pulsed light on photoaging skin in Chinese population. Lasers Surg Med 2010; 42:185-91. [DOI: 10.1002/lsm.20889] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Tian Y, Hoshino T, Chen CJ, E Y, Yabe S, Liu W. The evaluation of whitening efficacy of cosmetic products using a human skin pigmentation spot model. Skin Res Technol 2009; 15:218-23. [PMID: 19622131 DOI: 10.1111/j.1600-0846.2009.00358.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND To establish a pigmentation spot model on human skin and to assess whitening efficacy for whitening products by this established pigmentation spot model. METHODS Twenty subjects between 20 and 45 years old with skin phototype III or IV were selected. Three consecutive daily UV exposures were performed on buttocks of the subjects as follows: Day 1=1 minimal erythema dose (MED), Day 2=0.5 MED and Day 3=0.5 MED. After the first UV exposure, a selected whitening product was applied to the subjects twice a day on UV exposure area. The application of the whitening product to subjects on the exposed areas was continued till Day 27. CM2500d chromameter, Maxmeter MX18 and visual evaluation were used to assess changes of skin color. RESULTS A pigmentation spot model after UV exposure was established. The measurement of the pigment spot showed that L* value declined abruptly at Day 3 and then slowly reached to a lowest point at Day 6. L* value of the pigment spot almost remained at the same level until Day 20, thereafter increased slowly. The a* value showed an abrupt increase at Day 3 and slowly reached to a maximal level at Day 6. The a* value slowly declined toward its baseline level. Likewise, the erythema index also increased significantly at Day 3, and reached to a maximal level at Day 6 and then slowly declined. However, L*, a* and erythema indices did not return to their baseline levels during the 27-day period of this study. On the other hand, b* value started to increase from Day 3 and such increase was observed continuously to Day 27. Melanin index also showed a slow increase during the first 3 days. It started to increase rapidly from Day 3 and a to maximal level at Day 9 and maintain at a plateau till Day 27 (with an exception at Day 13). To assess the whitening product by this pigmentation spot model, DeltaL, Deltab*, and DeltaM values were analyzed. It showed that absolute DeltaL value and Deltab*value of whitening products were lower than those values of the vehicle of the whitening product at each checkpoint, while DeltaM value of the whitening product was lower only at Day 9 and Day 20, although no statistically significant differences was found. The visual results also strongly supported that the whitening product enhanced the decrease of pigmentation. CONCLUSION This study showed that repeated UV exposure was able to induce a long extensive period of pigment formation. The resulted pigmentation spot was able to maintain at an elevated level till Day 20. Clinical subjective evaluations together with combined objective instrument measurements were still important to assess whitening and spot-removing ability of a material due to the instrument limitation for color differentiations. This kind of pigmentation spot model can be used to assess whitening efficacy for whitening or spot-removing products. In addition, the combinations of subjective and objective methods were able to serve as advisable references to assess the whitening efficacy of products.
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Affiliation(s)
- Y Tian
- China Medical University, Shenyang, China
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Assessment of a new questionnaire for self-reported sun sensitivity in an occupational skin cancer screening program. BMC DERMATOLOGY 2008; 8:4. [PMID: 18950496 PMCID: PMC2582222 DOI: 10.1186/1471-5945-8-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Accepted: 10/24/2008] [Indexed: 11/10/2022]
Abstract
Background Sun sensitivity of the skin is a risk factor for the development of cutaneous melanoma and other skin cancers. Epidemiological studies on causal factors for the development of melanoma must control for sun sensitivity as a confounder. A standardized instrument for measuring sun sensitivity has not been established yet. It is assumed that many studies show a high potential of residual confounding for sun sensitivity. In the present study, a new questionnaire for the assessment of self-reported sun sensitivity is administered and examined. Methods Prior to an occupational skin cancer screening program, the 745 participating employees were asked to fill in a questionnaire for self-assessment of sun sensitivity. The questionnaire was developed by experts of the working group "Round Table Sunbeds" (RTS) to limit the health hazards of sunbed use in Germany. A sun sensitivity score (RTS-score) was calculated using 10 indicators. The internal consistency of the questionnaire and the agreement with other methods (convergent validity) were examined. Results The RTS-score was calculated for 655 study participants who were 18 to 65 years of age. The correlation of the items among each other was between 0.12 and 0.62. The items and the RTS-score correlated between 0.46 and 0.77. The internal consistency showed a reliability coefficient with 0.82 (Cronbach's alpha). The comparison with the Fitzpatrick classification, the prevailing standard, was possible in 617 cases with a rank correlation of rs = 0.65. The categorization of the RTS-score in four risk groups showed correct classification to the four skin types of Fitzpatrick in 75% of the cases. Other methods for the assessment of sun sensitivity displayed varying agreements with the RTS-score. Conclusion The RTS questionnaire showed a sufficient internal consistency. There is a good convergent validity between the RTS-score and the Fritzpatrick classification avoiding shortcomings of the prevailing standard. The questionnaire represents a simple, reliable and valid instrument for the assessment of sun sensitivity. The questionnaire can be useful for epidemiological studies as well as for skin cancer prevention. Further development and standardization of sun sensitivity assessments is necessary to strengthen the evidence of epidemiological studies on causal factors of melanoma and other skin cancers.
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Abstract
Attention to restoring healthy and more youthful facial skin complements facial plastic surgery, optimizing cosmetic results. Asian skin has structural and physiologic differences from white skin. These distinctions account for variations in response to ultraviolet light exposure and alternate clinical manifestations of photoaging. The response to cosmetic treatment modalities also differs in patients of darker skin pigmentation, and this needs to be recognized by the cosmetic and laser surgeon. This article reviews the biology of Asian skin and discusses a clinical approach to aesthetic analysis of Asian skin.
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Affiliation(s)
- Siegrid S Yu
- Department of Dermatology, Dermatologic Surgery and Laser Center, University of California, San Francisco, 1701 Divisadero Street, 3rd Floor, San Francisco, CA 94143, USA.
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