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https://www.readbyqxmd.com/read/28103523/anthropogenic-chemical-cues-can-alter-the-swimming-behaviour-of-juvenile-stages-of-a-temperate-fish
#1
Carlos Díaz-Gil, Lucy Cotgrove, Sarah Louise Smee, David Simón-Otegui, Hilmar Hinz, Amalia Grau, Miquel Palmer, Ignacio A Catalán
Human pressure on coastal areas is affecting essential ecosystems including fish nursery habitats. Among these anthropogenic uses, the seasonal increment in the pressure due to leisure activities such as coastal tourism and yachting is an important environmental stressor in many coastal zones. These pressures may elicit understudied impacts due to, for example, sunscreens or other seasonal pollutants. The island of Majorca, northwest Mediterranean Sea, experiences one of the highest number of tourist visits per capita in the world, thus the surrounding coastal habitat is subject to high anthropogenic seasonal stress...
January 6, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28095529/open-label-study-evaluating-the-anti-aging-effects-of-a-3-product-2-step-retinol-rejuvenation-system-following-3-months-of-treatment-in-subjects-with-photodamage
#2
Suzanne Bruce, Sylvia Barkovic
BACKGROUND: Photodamage to the skin occurs with exposure to sunlight (UVA or UVB) either intentionally or unintentionally, and can present in a variety of ways. It typically occurs on areas of chronic UV exposure, including the face, ears, and neck. METHODS: We evaluated the effects of a 3-product, 2-step retinol-rejuvenation system containing an exfoliating cleanser, a 0.5% retinol emollient cream, and SPF 30 moisturizing sunscreen used daily for 3 months on the appearance of mild-to-moderate facial photodamage in female subjects...
January 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28095280/relative-importance-of-traditional-risk-factors-for-malignant-melanoma-in-the-czech-population
#3
Lucie Rajská, Dana Göpfertová, Jana Hercogová, Anna Jiráková, Zuzana Sečníková, Filip Rob, Zdeněk Šmerhovský
AIM: The Czech Republic is one of the leading European countries in incident cases of malignant melanoma (MM), which is on the rise. The study objective was to assess the strength of associations between MM and the known generally accepted risk factors for MM in the population of the Czech Republic. METHODS: The study was designed as a case-control study where cases were incident cases of MM detected at the Department of Dermatology and Venereology of the Bulovka Hospital...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/28092363/mouse-models-of-uv-induced-melanoma-genetics-pathology-and-clinical-relevance
#4
Chi-Ping Day, Rachel Marchalik, Glenn Merlino, Helen Michael
Melanocytes, a neural crest cell derivative, produce pigment to protect keratinocytes from ultraviolet radiation (UVR). Although melanocytic lesions such as nevi and cutaneous malignant melanomas are known to be associated with sun exposure, the role of UVR in oncogenesis is complex and has yet to be clearly elucidated. UVR appears to have a direct mutational role in inducing or promoting melanoma formation as well as an indirect role through microenvironmental changes. Recent advances in the modeling of human melanoma in animals have built platforms upon which prospective studies can begin to investigate these questions...
January 16, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28089582/a-model-for-screening-and-prioritizing-consumer-nanoproduct-risks-a-case-study-from-south-africa
#5
Ndeke Musee
The potential risks of the increasing variety and volume of engineered nanomaterials (ENMs) entering into the ecosystem remain poorly quantified. In recent years, information essential to evaluate the ecological risks of ENMs has increased. However, the data are highly fragmented, limited, or severely lacking. This limits the usefulness of the information to support holistic screening and prioritization of potentially harmful ENMs. To screen and prioritize ENMs risks, we adopted a two-phased approach. First, a holistic framework model was developed to integrate a diverse set of factors aimed to assess the potential hazard, exposure, and in turn, risk to the ecosystem of ENMs from a given consumer nanoproduct...
January 12, 2017: Environment International
https://www.readbyqxmd.com/read/28068611/phyllosphere-methylobacterium-bacteria-contain-uva-absorbing-compounds
#6
Shigenobu Yoshida, Syuntaro Hiradate, Motoo Koitabashi, Tsunashi Kamo, Seiya Tsushima
Microbes inhabiting the phyllosphere encounter harmful ultraviolet rays, and must develop adaptive strategies against this irradiation. In this study, we screened bacterial isolates originating from the phyllosphere of various plants which harbored absorbers of ultraviolet A (UVA), a wavelength range which is recognized as harmful to human skin. Of the 200 phyllosphere bacterial isolates we screened, methanol extracts from bacterial cells of seventeen isolates absorbed wavelengths in the range of 315-400nm...
December 29, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28066876/the-terrestrial-green-macroalga-prasiola-calophylla-trebouxiophyceae-chlorophyta-ecophysiological-performance-under-water-limiting-conditions
#7
Andreas Holzinger, Klaus Herburger, Kathrin Blaas, Louise A Lewis, Ulf Karsten
The phylogenetic placement of Prasiola calophylla, from an anthropogenic habitat previously shown to contain a novel UV sunscreen compound, was confirmed by analysis of its rbcL gene. This alga has the capacity to tolerate strong water-limiting conditions. The photosynthetic performance and ultrastructural changes under desiccation and osmotic stress were investigated. Freshly harvested thalli showed an effective quantum yield of PSII [Y(II)] of 0.52 ± 0.06 that decreased to ∼60% of the initial value at 3000 mM sorbitol, and 4000 mM sorbitol led to a complete loss of Y(II)...
January 9, 2017: Protoplasma
https://www.readbyqxmd.com/read/28059904/emerging-exposures-of-developmental-toxicants
#8
Mary S Wolff, Jessie Buckley, Stephanie M Engel, Rob S McConnell, Dana B Barr
PURPOSE OF REVIEW: The purpose of this review is to identify emerging developmental toxicants that are understudied in children's health. Exposures may arise from new products designed to improve utility, to reduce toxicity, or to replace undesirable chemicals. Exposures to less-toxic chemicals may also be significant if they are very commonly used, thereby generating widespread exposure. Sources of exposure include the workplace, personal, home, and office products; food, water, and air...
January 5, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28056902/an-objective-and-cross-sectional-examination-of-sun-safe-behaviours-in-new-south-wales-primary-schools
#9
Dean A Dudley, Wayne G Cotton, Matthew J Winslade, Bradley J Wright, Kirsten S Jackson, Alexandra M Brown, Vanessa Rock
BACKGROUND: Previous evaluations have supported the link between sun protection policies and improved sun protection behaviours. However these evaluations have relied on self-reported data. METHODS: A cross-sectional design as part of an ongoing 18-month cluster-controlled trial in primary schools (n = 20) was used. Researchers conducted direct observations to record students' hat use and teachers' use of sun protective measures during recess and lunch. Researchers also recorded the volume of sunscreen consumed in each school...
January 5, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28056596/sunscreen-use-in-the-prevention-of-melanoma-common-sense-rules
#10
Tamar Nijsten
No abstract text is available yet for this article.
November 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28055220/incident-diagnoses-of-non-melanoma-skin-cancer-active-component-u-s-armed-forces-2005-2014
#11
Terrence Lee, Stephen B Taubman, Valerie F Williams
From 1 January 2005 through 31 December 2014, a total of 8,819 incident diagnoses of non-melanoma skin cancer (NMSC) (incidence rate 64.6 cases per 100,000 person-years [p-yrs]) were documented in the health records of 6,670 active component service members. During the surveillance period, there was a very slight decrease in the annual crude incidence rates of NMSC; rates of NMSC peaked in 2007 (68.3 cases per 100,000 p-yrs) and were at their lowest in 2013 (60.4 cases per 100,000 p-yrs). Increasing age was associated with increased risk of NMSC...
December 2016: MSMR
https://www.readbyqxmd.com/read/28054350/daily-variation-of-uv-induced-erythema-and-the-action-of-solar-filters
#12
Ana Flo, Ana C Calpena, Antoni Díez-Noguera, Alfons Del Pozo, Trinitat Cambras
UV rays may cause several degrees of skin damage, which makes sunscreen research necessary. In addition, skin sensitivity shows daily variations, which can interfere in the detection of the efficacy of the filters. Here, we studied the UV-induced erythema in hairless rats at two times of the day (light and darkness) using a colorimeter method. The effect of an emulsion with solar filters with or without melatonin was also assayed. Results indicate that the value of a* (from CIELAB color space values L* a* b) was the most useful variable to evaluate the erythema...
November 16, 2016: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28052293/skin-surface-topography-and-texture-analysis-of-sun-exposed-body-sites-in-view-of-sunscreen-application
#13
Verena Korn, Christian Surber, Georgios Imanidis
BACKGROUND/AIMS: To determine the roughness of the surface of human skin at highly sun-exposed anatomical sites in a wide age range in order to derive consequences for sunscreen application. METHODS: The forehead, cheek, nose, shoulder, and dorsal hand of 4 age groups (0-9, 20-39, 40-59, and >60 years) were investigated by replica formation, and areal topography was determined by confocal chromatic imaging. The arithmetic mean height as a roughness parameter and the void volume of the surface profile were calculated...
January 5, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/28045207/public-primary-and-secondary-skin-cancer-prevention-perceptions-and-knowledge-an-international-cross-sectional-survey
#14
S Seite, V Del Marmol, D Moyal, A Friedman
BACKGROUND: The incidence of melanoma and non-melanoma skin cancer is continuing to increase worldwide, with sun exposure serving as the primary external etiologic force in its development. Despite noticeable public health efforts, there continue to be gaps in public awareness and primary and secondary prevention mechanisms. This survey study sought to investigate preventative behaviors regarding sun exposure and skin cancer detection at an international scale. METHODS: A questionnaire was submitted, both online and by telephone, to a representative sample (based on official demographic statistics on gender, age and region) of people aged from 15 to 65 originating from 23 countries...
January 3, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28044249/evaluation-of-facebook-and-twitter-monitoring-to-detect-safety-signals-for-medical-products-an-analysis-of-recent-fda-safety-alerts
#15
Carrie E Pierce, Khaled Bouri, Carol Pamer, Scott Proestel, Harold W Rodriguez, Hoa Van Le, Clark C Freifeld, John S Brownstein, Mark Walderhaug, I Ralph Edwards, Nabarun Dasgupta
INTRODUCTION: The rapid expansion of the Internet and computing power in recent years has opened up the possibility of using social media for pharmacovigilance. While this general concept has been proposed by many, central questions remain as to whether social media can provide earlier warnings for rare and serious events than traditional signal detection from spontaneous report data. OBJECTIVE: Our objective was to examine whether specific product-adverse event pairs were reported via social media before being reported to the US FDA Adverse Event Reporting System (FAERS)...
January 2, 2017: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/28042100/diethylamino-hydroxybenzoyl-hexyl-benzoate-dhhb-as-additive-to-the-uv-filter-avobenzone-in-cosmetic-sunscreen-formulations-evaluation-of-the-photochemical-behavior-and-photostabilizing-effect
#16
Camila Martins Kawakami, Leandro Nériton Cândido Máximo, Bianca Bueno Fontanezi, Roberto Santana da Silva, Lorena Rigo Gaspar
The aim of the present study was to investigate the photochemical behavior of DHHB and its photostabilizing effect on avobenzone (AVO) in different sunscreen formulations. The formulations were subjected to photostability studies by HPLC and spectrophotometry. In vitro phototoxicity was assessed using 3T3 fibroblast cultures. The mechanism of interaction between DHHB and AVO was investigated by steady state and time-resolved fluorescence spectroscopy. All formulations provided ultra-protection against UVA radiation...
December 30, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28039945/the-tanning-habits-and-interest-in-sunscreen-of-google-users-what-happened-in-12-years
#17
Michael C Kirchberger, Markus V Heppt, Thomas K Eigentler, Markus A Kirchberger, Gerold Schuler, Lucie Heinzerling
BACKGROUND: The incidence of melanoma has been rising worldwide. One possible reason for this is natural and artificial UV exposure. Only little data on actual consumer statistics from tanning studios and the usage of sunscreen are available. Therefore, it is difficult to describe trends for both and identify the impact of preventive measures. METHODS: To gain knowledge about the popularity of 'tanning bed' and 'sunscreen', normalized search volumes for both search queries were obtained from Google Trends for 11 countries between January 2004 and June 2016...
December 31, 2016: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28039890/simultaneous-separation-and-determination-of-15-organic-uv-filters-in-sunscreen-cosmetics-by-hplc-esi-ms-ms
#18
Xianshuang Meng, Qiang Ma, Hua Bai, Ziming Wang, Chao Han, Chuanxian Wang
OBJECTIVE: A comprehensive methodology for the simultaneous determination of 15 multiclass organic UV filters in sunscreen cosmetics was developed using high performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). METHODS: Sunscreen cosmetics of various matrices, such as toning lotion, emulsion, cream, and lipstick, were analyzed. Ultrasound-assisted extraction (UAE) was utilized as the extraction technique for sample preparation...
December 31, 2016: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28038885/ultraviolet-radiation-and-the-skin-photobiology-and-sunscreen-photoprotection
#19
Antony R Young, Joël Claveau, Ana Beatris Rossi
The efficacy of sunscreens can be measured by different methods, involving in vitro, ex vivo, or in vivo techniques. There is a need for a worldwide standardization of these methods to avoid misunderstanding and confusion among sunscreen users. The clinical benefits of sunscreens have been demonstrated in randomized controlled trials that established the role of sunscreens in the prevention of actinic keratoses, squamous cell carcinomas, nevi, and melanomas. Sunscreens also prevent photoimmunosuppression and signs of photoaging...
December 23, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28038884/photoprotection-in-specific-populations-children-and-people-of-color
#20
Tania Cestari, Kesha Buster
Improved education on appropriate photoprotection in children is vital. Photoprotection for these individuals should include seeking shade, the use of physical agents (clothing, hat, sunglasses), and application of sunscreens on exposed areas. Avoidance of the use of tanning beds is an important component of education for teenagers. Ultraviolet radiation exposure induces DNA damage and photoaging in all skin types, including people of color. The extent of such damage is inversely related to constitutive skin pigmentation...
December 23, 2016: Journal of the American Academy of Dermatology
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