Sunscreen
Mostrando 1-12 de 44 artigos, teses e dissertações.
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1. Efficacy of sunscreen with photolyase or regular sunscreen associated with topical antioxidants in treating advanced photodamage and cutaneous field cancerization: a randomized clinical trial
Abstract Background Several treatments are available for skin with advanced photodamage, which is characterized by the presence of actinic keratoses (AK). Objectives Evaluate the efficacy of using sunscreen with photolyase compared to regular sunscreen, as well as to compare the combination of a topical formulation of antioxidants versus placebo in the tre
Anais Brasileiros de Dermatologia. Publicado em: 2022
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2. Sunscreen lotions in the dermatological prescription: review of concepts and controversies
Abstract The skin is regularly exposed to several environmental aggressions, including solar radiation, whose biological effects can induce sunburn, dyschromia, skin aging and cancer. Among the photoprotection measures, sunscreens comprise a relevant part of the strategy aimed to prevent solar radiation damage and, for effective action, the patient must adhe
Anais Brasileiros de Dermatologia. Publicado em: 2022
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3. Development and characterization of photoprotective formulations containing keratin particles
This work deals with development and evaluation of MFQ protective formulation, which contains two organic filters, namely: octyl-p-methoxycinnamate (OMC) and benzophenone-3 (BP-3); a photostabilizing agent called ethylhexylmethoxycrylene (EHMCR) and keratin particles. The MFQ formulation was evaluated in order to measure its pH, spin-spin lattice relaxation
Braz. J. Pharm. Sci.. Publicado em: 20/12/2019
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4. Non-use of sunscreen among adults and the elderly in southern Brazil
Abstract Background One of the main prevention methods against skin cancer is the use of sunscreen; however, incidence of this disease has not declined despite prevention campaigns. Objective Investigate the prevalence of non-use of sunscreen and its associated factors. Method A population-based cross-sectional study with individuals aged 18 years or over
An. Bras. Dermatol.. Publicado em: 09/12/2019
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5. Photoprotective activity and increase of SPF in sunscreen formulation using lyophilized red propolis extracts from Alagoas
ABSTRACT The excessive sun exposure, coupled with lack of sun protection represents one of the biggest risks to the occurrence of skin cancer and photoaging. Recent strategies for photoprotection have included the incorporation of natural antioxidant and anti-inflammatory compounds, into sunscreens, and the oral administration of natural antioxidant extracts
Rev. bras. farmacogn.. Publicado em: 26/08/2019
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6. PREPARATION AND CHARACTERIZATION OF A QUERCETIN-TETRAETHYL ETHER-BASED PHOTOPROTECTIVE NANOEMULSION
Although Quercetin absorbs in the UVA/UVB electromagnetic region, it is limited for applications as a UV filter due to its low lipophilicity and capacity to penetrate the epidermis. In order to overcome this limitation, we synthetized and evaluated the photo protective properties of a derivative obtained from Quercetin. The derivative was prepared by alkylat
Quím. Nova. Publicado em: 27/05/2019
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7. Prevalence of Vitamin D Deficiency in Patients with Minimal Trauma Fractures
Resumo Objetivo Avaliar os níveis séricos da 25-hidroxivitamina D [25(OH)D] em pacientes internados com fraturas causadas por traumas de baixa energia e analisar o perfil desses pacientes e os principais tipos de fraturas. Métodos Estudo transversal observacional em que foram obtidas amostras séricas de 25(OH)D de 40 pacientes internados com fraturas
Rev. bras. ortop.. Publicado em: 20/05/2019
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8. Phytochemical screening, Sun Protection Factor (SPF) and sugar analysis of jatobá fruits (Hymenaea martiana Hayne): A native medicinal plant from the San Francisco Valley
Abstract Hymenaea martiana is a native medicinal plant from the Caatinga, but biochemical studies of the fruit have not yet been reported. Thus, this study aimed to determine sugars and secondary metabolites, as well as assess the sunscreen potential of H. martiana fruits. The fruits were collected in Petrolina and separated into pulp and seeds. The sugar an
Food Sci. Technol. Publicado em: 16/05/2019
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9. Knowledge and habits of sun exposure in university students: a cross-sectional study in Southern Brazil
Abstract BACKGROUND: Excessive sun exposure is the major risk factor for skin cancer. Thus, sun exposure behavior is the major focus for prevention of this disease, since it is potentially modifiable. Increasing the knowledge on sun related habits and other skin cancer risk factors is fundamental in the development of preventive programs, especially when di
An. Bras. Dermatol.. Publicado em: 09/05/2019
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10. Epidemiological profile of farmworkers from the state of Rio de Janeiro
RESUMO Objetivo: descrever o perfil epidemiológico dos trabalhadores rurais expostos a agrotóxicos no município de Casimiro de Abreu, estado do Rio de Janeiro. Método: estudo transversal, realizado por meio de questionário. Os dados coletados foram digitados em planilha eletrônica e processados no Programa R. Resultados: constatou-se predomínio de
Rev. Bras. Enferm.. Publicado em: 2019-02
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11. Evaluation of vitamin D plasma levels after mild exposure to the sun with photoprotection
Abstract: Background: Most of the organism’s vitamin D (VD) is obtained through the cutaneous synthesis after exposure to the sun’s UVB radiation. Sunscreens are indicated for the prevention of actinic damage to the skin, however, there are few clinical trials assessing the synthesis of cutaneous VD in real-life situations of sun exposure with ordinary
An. Bras. Dermatol.. Publicado em: 2019-02
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12. Blocking or enhancing effects of some basic emollients in UVA penetration
Abstract: Background: Topical agents used in combination with phototherapy or photochemotherapy may have both blocking or enhancing effects in ultraviolet rays. Objective: In this in vivo study, the effects of topical petrolatum, basis cream, glycerine, and olive oil on the transmission of ultraviolet A radiation were investigated. Methods: A test was per
An. Bras. Dermatol.. Publicado em: 2018-03