Results: 61

Prevalence of and factors associated with actinic cheilitis in extractive mining workers

Braz. dent. j; 29 (2), 2018
Abstract The objective of the present study was to determine the prevalence of actinic cheilitis among extractive mining workers and factors associated with the condition, especially the relationship between clinical appearance and the length of occupational exposure to sunlight. A cross-sectional study ...

Photoprotection in adolescents: what they know and how they behave

An. bras. dermatol; 93 (1), 2018
Abstract: Background: The greatest sun exposure occurs until adolescence and this is the only factor involved in photocarcinogenesis subject to modification with photoprotection. Objective: The objective of this study was to evaluate the habits and knowledge of adolescents regarding photoprotection. M...

Câncer de pele: caracterização do perfil e avaliação da proteção solar dos pacientes atendidos em serviço universitário

Introdução: O câncer de pele é a neoplasia de maior incidência no Brasil. Vários fatores têm sido atribuídos como risco para seu desenvolvimento, como: cor da pele, horário e tempo de exposição ao sol, residência em um país tropical e uso de imunossupressão crônica. Objetivo: descrever os ...

Bipolar disorders: is there an influence of seasonality or photoperiod?

Objective: To increase understanding of the influence of photoperiod variation in patients with bipolar disorders. Methods: We followed a sample of Italian bipolar patients over a period of 24 months, focusing on inpatients. All patients admitted to the Psychiatric Inpatient Unit of San Luigi Gonzaga Ho...

Efeitos contrastantes da vitamina D sobre a resposta imune inata e adquirida e seu impacto na recuperação da tuberculose

HU Rev. (Online); 44 (3), 2018
A vitamina D é um hormônio essencial para o organismo, podendo ser obtida da dieta ou, principalmente, gerada pela pele após exposição à luz solar ultravioleta B. Na sua forma ativa (1,25(oH)2D) ela controla a absorção de cálcio e fósforo do intestino para a corrente sanguín...

Global and gene-specific DNA methylation and hydroxymethylation in human skin exposed and not exposed to sun radiation

An. bras. dermatol; 92 (6), 2017
Abstract: Background: epigenomes can be influenced by environmental factors leading to the development of diseases. Objective: To investigate the influence of sun exposure on global DNA methylation and hydroxymethylation status and at specific sites of the miR-9-1, miR-9-3 and MTHFR genes in skin sampl...

Risk factors associated with actinic prurigo: a case control study

An. bras. dermatol; 92 (6), 2017
Abstract: Background: Actinic prurigo (AP) is an idiopathic photodermatosis. Although its initial manifestations can appear in 6 to 8-year-old children, cases are diagnosed later, between the second and fourth decades of life, when the injuries are exacerbated. Objective: To identify risk factors assoc...

Prevalence and factors associated with exposure to sunlight and sunscreen among physical education teachers in Pelotas, southern Brazil

An. bras. dermatol; 92 (6), 2017
Abstract: Background: Decreasing the time of exposure to the sun and increasing sunscreen use are important actions to prevent skin cancer. Objective: This study aimed to verify the prevalence of exposure to the sun and the use of sunscreen, as well as associated factors among physical education teache...

Llega la primavera y florecen los eritemas polimorfos solares
Spring arrives and with it the polymorphous light eruption

El eritema polimorfo solar es la fotodermatosis más frecuente y suele aparecer en primavera con la primera exposición intensa al sol. Sus manifestaciones cutáneas son variadas y el diagnóstico se basa en la clínica junto al antecedente de exposición solar. En los casos leves, la fotoprotección sue...

Segmental lichen aureus: an uncommon presentation

An. bras. dermatol; 92 (5), 2017
Abstract: Pigmented purpuric dermatoses are chronic vascular inflammatory conditions characterized by the presence of pigmented macules. Among its different presentations, lichen aureus is distinguished by the lichenoid conformation of its plaques and the predilection for lower limb involvement. Its segm...