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Feiby L Nassan, Brent A Coull, Audrey J Gaskins, Michelle A Williams, Niels E Skakkebaek, Jennifer B Ford, Xiaoyun Ye, Antonia M Calafat, Joseph M Braun, Russ Hauser
BACKGROUND: Personal care products (PCPs) are exposure sources to phthalates and parabens; however, their contribution to men's exposure is understudied. OBJECTIVES: We examined the association between PCP use and urinary concentrations of phthalate metabolites and parabens in men. METHODS: In a prospective cohort, at multiple study visits, men self-reported their use of 14 PCPs and provided a urine sample (2004-2015, Boston, MA). We measured urinary concentrations of 9 phthalate metabolites and methylparaben, propylparaben, and butylparaben...
August 18, 2017: Environmental Health Perspectives
Yukihiro Ogawa, Megumi Ueno, Emiko Sekine-Suzuki, Ikuo Nakanishi, Ken-Ichiro Matsumoto, Shingo Fujisaki
The aim of this experiment is to measure in vivo generation of melanin-derived radicals non-invasively, as a quantifiable index of radio-biological effect. Melanin-derived radicals in a living intact mouse tail tip were non-invasively measured in very simple way using an X-band electron paramagnetic resonance spectrometer. Colored mouse strains, C57BL/6NCr, BDF1, and C3H/He, have clear EPR signal corresponding to melanin-derived radicals in the tail tip; however, albino mouse strains, BALB/cCr, ddY, ICR, have no EPR signals...
November 2016: Journal of Clinical Biochemistry and Nutrition
Anne Vuadens, Simone Ackermann, Fabio Levi, Jean-Luc Bulliard
Switzerland, particularly its western region, has the highest incidence of melanoma in Europe. Although the risk of melanoma increases with sun overexposure during childhood, sun-related knowledge and attitudes of Swiss children are scarcely documented. We report the first investigation of the knowledge of the danger of ultraviolet radiation, attitudes towards a suntan and parental influence of schoolchildren in western Switzerland. All fifth, eighth and eleventh graders (average ages of 9, 12 and 15, respectively) in the 18 primary (fifth grade, n=431) and secondary (eighth and eleventh grades, n=837) public schools of La Chaux-de-Fonds were surveyed during regular school classes...
October 5, 2016: European Journal of Cancer Prevention
Miaojian Wan, Rong Hu, Ying Li, Yaning Wang, Xiaoyuan Xie, Pan Yue, Lei Guan, Wei Lai
Excessive sun exposure can cause sunburn, suntan, skin photoaging, and even skin cancer. Skin photoaging conflicts with the human pursuit of a young and beautiful appearance. Some research data indicate that the incidence of skin cancer in the Chinese has been increasing, although it remains lower than in whites. To estimate the prevalence of sun protection used on Chinese children aged 3-13 years and identify its predictors, a population-based cross-sectional questionnaire was given to 3684 parents/guardians of children in Guangzhou, China, of which 3083 questionnaires were returned...
September 2016: Photochemistry and Photobiology
Ming Xu, Vivien P Chua
Intensive economic and shipping activities in Singapore Strait have caused Singapore coastal waters to be under high risk of water pollution. A nested three-dimensional unstructured-grid SUNTANS model is applied to Singapore coastal waters to simulate flow and pollutant transport. The small domain (~50m resolution) Singapore coastal model is nested within a large domain (~200m resolution) regional model. The nested model is able to predict water surface elevations and velocities with high R(2) values of 0.96 and 0...
October 15, 2016: Marine Pollution Bulletin
Suzette Eastabrook, Paul Chang, Myra F Taylor
Suntanning increases skin cancer risk and prematurely ages skin. Photoageing photography is an effective means of increasing adult ultraviolet radiation (UVR) awareness and skin-protection practices. While adults' largely positive suntanning-deterrence responses to photoageing photography are well-documented, comparatively little is known about the deterrence effectiveness of photoageing photography with adolescents. To help fill this knowledge gap, in-depth interviews were collected from 10 adolescent females and were subsequently subjected to interpretive phenomenological analysis...
June 22, 2016: Global Health Promotion
Deniz Tuna, Anikó Udvarhelyi, Andrzej L Sobolewski, Wolfgang Domcke, Tatiana Domratcheva
Eumelanin is a naturally occurring skin pigment which is responsible for developing a suntan. The complex structure of eumelanin consists of π-stacked oligomers of various indole derivatives, such as the monomeric building block 5,6-dihydroxyindole (DHI). In this work, we present an ab initio wave-function study of the absorption behavior of DHI oligomers and of doubly and triply π-stacked species of these oligomers. We have simulated the onset of the electronic absorption spectra by employing the MP2 and the linear-response CC2 methods...
April 14, 2016: Journal of Physical Chemistry. B
L Feller, R A G Khammissa, B Kramer, M Altini, J Lemmer
Ultraviolet light (UV) is an important risk factor for cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma and cutaneous melanoma of the skin. These cancers most commonly affect persons with fair skin and blue eyes who sunburn rather than suntan. However, each of these cancers appears to be associated with a different pattern of UV exposure and to be mediated by different intracellular molecular pathways.Some melanocortin 1 receptor (MC1R) gene variants play a direct role in the pathogenesis of cutaneous basal cell carcinoma, cutaneous squamous cell carcinoma and cutaneous melanoma apart from their role in determining a cancer-prone pigmentory phenotype (fair skin, red hair, blue eyes) through their interactions with other genes regulating immuno-inflammatory responses, DNA repair or apoptosis...
February 5, 2016: Head & Face Medicine
Teresa Fernández-Morano, Francisco Rivas-Ruiz, Magdalena de Troya-Martín, Nuria Blázquez-Sánchez, Maria Padilla Ruiz, Agustín Buendía-Eisman
Adolescents are considered a risk group for the development of skin cancer in later life due to their high rates of sunburn. The aim of this study is to evaluate the association between attitudes to sun exposure and the sociodemographic characteristics of adolescents, their habits, practices and knowledge. As a secondary goal, we describe the magnitude and sign of the correlations between these attitudes. Cross-sectional study of adolescent students from 12 secondary schools in southern Spain, the subjects were asked to complete the 'Beach Questionnaire'...
September 2017: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
Jannah Baker, Linda Finch, H Peter Soyer, Alison L Marshall, Peter Baade, Philippa Youl, Monika Janda
OBJECTIVE: Melanoma is on the rise, especially in Caucasian populations exposed to high ultraviolet radiation such as in Australia. This paper examined the psychological components facilitating change in skin cancer prevention or early detection behaviours following a text message intervention. METHODS: The Queensland-based participants were 18 to 42 years old, from the Healthy Text study (N = 546). Overall, 512 (94%) participants completed the 12-month follow-up questionnaires...
January 2016: Psycho-oncology
Nicolas Guéguen
Psychologists have investigated why people want to have a tanned skin and how to prevent people's exposure to solar ultraviolet radiation. However, the effect of suntan on social behavior has not been investigated. In this experiment, conducted in France, a female confederate wearing, or not wearing, a self-tanning cream on her face asked 104 male and 111 female passersby (approximate ages 30 to 60 yr.) to participate in a survey. It was found that more passersby agreed with the request when the interviewer had a suntanned face (52%) than in the control condition (39%)...
August 2015: Psychological Reports
Brian L Diffey, Uli Osterwalder, Bernd Herzog
BACKGROUND/PURPOSE: Acquiring a tanned skin, either by sunbathing, sunbed use, or a combination of both, is a desirable objective for many people. The objective here was to compare the ultraviolet (UV) exposure resulting from a 2-week vacation spent sunbathing with sunscreen-protected skin, with that from a typical course of 10 sessions on a sunbed. METHODS: A numerical analysis combining data on sunlight and sunbed UV levels, time spent tanning and spectral absorption properties of different types of sunscreen...
November 2015: Photodermatology, Photoimmunology & Photomedicine
Amy E Thompson
No abstract text is available yet for this article.
August 11, 2015: JAMA: the Journal of the American Medical Association
Rüdiger Greinert, Esther de Vries, Friederike Erdmann, Carolina Espina, Anssi Auvinen, Ausrele Kesminiene, Joachim Schüz
Ultraviolet radiation (UVR) is part of the electromagnetic spectrum emitted naturally from the sun or from artificial sources such as tanning devices. Acute skin reactions induced by UVR exposure are erythema (skin reddening), or sunburn, and the acquisition of a suntan triggered by UVR-induced DNA damage. UVR exposure is the main cause of skin cancer, including cutaneous malignant melanoma, basal-cell carcinoma, and squamous-cell carcinoma. Skin cancer is the most common cancer in fair-skinned populations, and its incidence has increased steeply over recent decades...
December 2015: Cancer Epidemiology
Cuiling Xu, Ranawaka A P M Perera, Yap-Hang Chan, Vicky J Fang, Sophia Ng, Dennis K M Ip, Andrea May-Sin Kam, Gabriel M Leung, J S Malik Peiris, Benjamin J Cowling
Vitamin D plays an important role in skeletal health throughout life. Some studies have hypothesised that vitamin D may reduce the risk of other diseases. Our study aimed to estimate age-specific and sex-specific serum 25-hydroxyvitamin D (25(OH)D) status and to identify the determinants of serum 25(OH)D status in Hong Kong, a subtropical city in southern China. In 2009-2010, households in Hong Kong were followed up to identify acute respiratory illnesses, and sera from 2694 subjects were collected in three to four different study phases to permit measurement of 25(OH)D levels at different times of the year...
July 14, 2015: British Journal of Nutrition
Lori Lo Presti, Paul Chang, Myra F Taylor
BACKGROUND: Despite two nationwide sun-protection awareness campaigns, young Australian adults continue to sunbathe. Since their primary motivation for tanning is appearance enhancement, it may well be that campaigns that highlight the negative effects of tanning on appearance are more effective than campaigns that emphasise the health risks associated with sun exposure. AIMS: This study aims to explore young adults' reactions to viewing a photoaged photograph of the sun damage already visible in their facial image...
2014: Australasian Medical Journal
S Kontautiene, A Stang, H Gollnick, S Valiukeviciene
BACKGROUND: The occurrence and number of melanocytic nevi (MN) are among the most important known risk factors for the development of cutaneous melanoma (CM). OBJECTIVES: To estimate the prevalence of MN among schoolchildren and its relationship with phenotype, body mass index (BMI), parental and sun exposure factors. METHODS: A cross-sectional study was conducted on N = 1277 schoolchildren aged 7-19 years old in Kaunas city, Lithuania. Subjects were interviewed using a self-administered questionnaire and were assessed by a dermatologist...
August 2015: Journal of the European Academy of Dermatology and Venereology: JEADV
Erin Biba
No abstract text is available yet for this article.
November 20, 2014: Nature
Vivek Kumar Dey
BACKGROUND: Misuse of topical corticosteroids is a widespread phenomenon among young people in India, especially women. The practice is associated with significant adverse effects and poor awareness of these effects among the general public. AIM: This study was conducted to examine the misuse and adverse effects of topical corticosteroids among the people in Bastar region in Chhattisgarh state of India. MATERIALS AND METHODS: Data collected from patients presenting with at least one of the adverse effects of topical corticosteroids as the chief complaint, from November 2010 to October 2011...
October 2014: Indian Dermatology Online Journal
Caroline Chang, Era Caterina Murzaku, Lauren Penn, Naheed R Abbasi, Paula D Davis, Marianne Berwick, David Polsky
Although personal melanoma risk factors are well established, the contribution of socioeconomic factors, including clothing styles, social norms, medical paradigms, perceptions of tanned skin, economic trends, and travel patterns, to melanoma incidence has not been fully explored. We analyzed artwork, advertisements, fashion trends, and data regarding leisure-time activities to estimate historical changes in UV skin exposure. We used data from national cancer registries to compare melanoma incidence rates with estimated skin exposure and found that they rose in parallel...
November 2014: American Journal of Public Health
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