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Gac. méd. Méx ; 157(2): 127-132, mar.-abr. 2021. tab
Article in Spanish | LILACS | ID: biblio-1279091


Resumen Objetivo: Conocer la prevalencia de las conductas exposición y protección solar en un grupo de adolescentes y compararlos con un grupo de adultos en la Ciudad de México. Material y métodos: Estudio transversal descriptivo en estudiantes de 16 a 18 años y en adultos mayores de 18 años. Resultados: Se encuestaron 748 alumnos, 60 % mujeres y 40 % hombres. El 90 % busca la sombra, el 70.1 % evita exponerse al sol de las 10 a las 16 horas y el 30.6 % usa filtro solar. De 620 adultos, 67.5 % mujeres y 32.4 % hombres, el 82.6 % buscan la sombra, el 60.2 % evita el sol de las 10 a las 16 horas y el 48.1 % utiliza filtro solar. El 72.9 % de adultos y el 80.8 % de adolescentes se exponen al sol debido a actividades domésticas. Discusión: Existe una tendencia similar en las conductas de protección y exposición solar en adolescentes y adultos. Es alta la prevalencia de uso de fotoprotector en adultos en comparación con los adolescentes.

Abstract Objective: To know the prevalence of sun exposure and protection behaviors in a group of adolescents and to compare them with a group of adults in Mexico City. Material and methods: Descriptive, cross-sectional study in students aged 16 to 18 years and in adults older than 18 years. Results: Seven-hundred and forty-eight students were surveyed; 60 % were females and 40 % males; 90 % seek shade, 70.1 % avoid exposing themselves to the sun from 10.00 to 16.00 hours and 30.6 % use sunscreen. Out of 620 adults, 67.5 % were women and 32.4 % were men; 82.6 % seek shade, 60.2 % avoid the sun from 10.00 to 16.00 hours and 48.1% use sunscreen; 72.9 % of adults and 80.8 % of adolescents are exposed to the sun due to domestic activities. Discussion: There is a similar trend in sun protection and exposure behaviors in adolescents and adults. The prevalence of sunscreen use in adults is high in comparison with adolescents.

Humans , Male , Female , Adolescent , Adult , Middle Aged , Young Adult , Radiation Protection/methods , Sunlight/adverse effects , Sunscreening Agents/administration & dosage , Health Behavior , Students/statistics & numerical data , Time Factors , Cross-Sectional Studies , Health Surveys , Age Factors , Mexico
Rev. méd. Minas Gerais ; 30(supl.2): 18-21, 2020.
Article in Portuguese | LILACS | ID: biblio-1151004


Introdução: A maculopatia ou retinopatia solar é uma lesão foto-traumática da mácula causada pela observação direta ou indireta de fontes luminosas intensas, que ocorre comumente na presença de distúrbios psíquicos ou após o uso de drogas recreativas. O prognóstico visual varia e a conduta é expectante. Descrição do caso: Paciente V.V.A.M., sexo masculino, 20 anos, estudante, com queixa de escotoma central em ambos os olhos. Nega antecedentes patológicos e oculares. Solicitaram-se tomografia de coerência óptica (OCT) e retinografia, que revelaram uma lesão central, bilateral e simétrica na retina externa. Paciente relatou ter feito uso de Dietilamida de ácido lisérgico (LSD) e, sob influência da droga, ter olhado de forma direta para o sol por aproximadamente 40 minutos. Discussão: O prognóstico da retinopatia solar é variável e relaciona-se com o tempo de exposição e com o comprimento da onda da fonte de luz. A etiopatogênese é explicada pelo dano causado ao epitélio pigmentar da retina (EPR) pela radiação. Conclusões: Deve haver maior orientação ao público sobre os possíveis efeitos danosos de exposição a fontes de luz de origens diversas. Além disso, destaca-se a importância do OCT para a identificação da maculopatia solar. (AU)

Introduction: Solar maculopathy or retinopathy is photo-traumatic damage created on the macula, caused by direct or indirect observation of intense light sources, commonly occurring in the presence of psychic disorders or after the use of recreational drugs. The visual prognosis varies. There is currently no known treatment. Case report: A 20-year-old male with no previous complaints reported central scotoma in both eyes despite 20/20 uncorrected vision. Bilateral, symmetric, central changes could be seen in the macula in fundoscopy. Optical coherence tomography (OCT) confirmed loss of the external retina suggestive of Solar Maculopathy. The patient later claimed to have spent 40 minutes looking directly into the sun after use of Lysergic Acid Diethylamide (LSD). Discussion: The prognosis of solar retinopathy is related to the exposure time and to the wavelength of the light source, with those between 300-350 nm being the most harmful. Its etiopathogenesis is explained by damage caused to the retinal pigment epithelium (EPR) caused by radiation, interrupting the interdigitations between this layer and the external segment of the photoreceptors. Ophthalmoscopically, solar maculopathy is characterized by a small foveolar lesion that might become yellowish in the days following exposure, in the form of exudate or edema, followed by loss of foveal reflex and thinning of the fovea. The initial yellowed lesions are subsequently replaced by a spotted EPR or even by a lamellar orifice. Conclusions: There should be public guidance on the possible harmful effects of exposure to sources of light from diverse origins, as it usually occurs during solar eclipses, after exposure to certain types of lasers or observation of fires since this habit can cause severe and sometimes irreversible visual loss. (AU)

Humans , Male , Adult , Young Adult , Macular Degeneration , Scotoma , Sunlight/adverse effects , Lysergic Acid Diethylamide , Macular Degeneration/etiology
Braz. J. Pharm. Sci. (Online) ; 56: e18601, 2020. tab, graf
Article in English | LILACS | ID: biblio-1249143


The objective of this work was to develop and characterize liposomes loaded with silver nanoparticles (LAgNPs) to show improvement in stability characteristics. AgNPs were prepared by the green synthesis method with Aloe vera gel extract and exposure to sunlight. Liposomes were prepared by the modified reverse phase method. Particle size, polydispersity index, zeta potential, as well as the scanning electron microscopy (SEM) morphological aspects of AgNPs and LAgNPs were evaluated. In addition, was used flame atomic absorption spectroscopy to determine the amount of AgNP that was encapsulated in liposomes. The AgNPs presented as amorphous and polydisperse structures, with a mean diameter of 278.46 nm and zeta potential of -18.3 mV. LAgNPs had a mean diameter between 321 and 373 nm, the polydispersity index close to 0.2 and a zeta potential around -40 mV, which indicates greater stability to the AgNPs. The images obtained by SEM show semicircular structures for AgNPs and well-defined spherical shape for LAgNPs. The percentage of encapsulation was between 51.81 to 58.83%. These results showed that LAgNPs were obtained with adequate physicochemical characteristics as a release system.

Silver , Nanoparticles/analysis , Liposomes/analysis , Sunlight/adverse effects , Microscopy, Electron, Scanning/methods , Spectrophotometry, Atomic/methods , Aloe/classification , Methods
An. bras. dermatol ; 94(3): 331-333, May-June 2019. graf
Article in English | LILACS | ID: biblio-1011115


Abstract: Solar urticaria is a rare form of physical urticaria mediated by immunoglobulin E. The lesions appear immediately after the sun exposure, interfering with the patient's normal daily life. Omalizumab, a monoclonal anti-IgE antibody, has been recently approved for the treatment of chronic spontaneous urticaria, and the latest reports support its role also in the treatment of solar urticaria. Hereby, we report a case of solar urticaria refractory to conventional treatment strategies, with an excellent response to treatment with omalizumab and phototesting normalization.

Humans , Male , Middle Aged , Sunlight/adverse effects , Urticaria/drug therapy , Anti-Allergic Agents/therapeutic use , Omalizumab/therapeutic use , Photosensitivity Disorders/diagnosis , Photosensitivity Disorders/etiology , Photosensitivity Disorders/drug therapy , Urticaria/diagnosis , Urticaria/etiology
An. bras. dermatol ; 94(2): 157-163, Mar.-Apr. 2019. tab, graf
Article in English | LILACS | ID: biblio-1001134


Abstract BACKGROUND: Skin cancer is common in Brazil and is related to sun exposure, among other risk factors. There are no data on the incidence of malignant skin neoplasm in rural workers in western Paraná. OBJECTIVE: To analyze the incidence and profile of rural workers who were diagnosed with skin cancer at a reference service in Cascavel, western Paraná, in the last five years (2011-2016). METHODS: This retrospective cross-sectional study was carried out through a review of the anatomopathological reports of rural workers diagnosed with skin cancer at Cascavel Oncology Center (CEONC), in Cascavel. The following variables were collected: year of diagnosis, age, gender, injury location and histological subtype. RESULTS: A total of 681 cases of malignant epithelial neoplasia were identified, with a higher frequency in the 61-70 age group. Data analysis showed an increase of about 210% in the occurrence of skin cancers in the last 5 years. The cephalic region was the most affected, and the most common histological subtype was nodular basal cell carcinoma. There was no association between gender and location. STUDY LIMITATIONS: This is a retrospective study and analysis of a secondary data bank. CONCLUSION: This study is a regional estimation of the incidence of cutaneous neoplasms and provides evidence of a considerable increase in the number of diagnoses in rural workers from western Paraná, Brazil. Moreover, it is possible to conclude that the sample group studied is at risk of developing skin cancer.

Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , Skin Neoplasms/epidemiology , Carcinoma, Basal Cell/epidemiology , Carcinoma, Squamous Cell/epidemiology , Melanoma/epidemiology , Rural Population/statistics & numerical data , Skin Neoplasms/etiology , Sunlight/adverse effects , Brazil/ethnology , Brazil/epidemiology , Carcinoma, Basal Cell/etiology , Carcinoma, Squamous Cell/etiology , Incidence , Cross-Sectional Studies , Retrospective Studies , Age Distribution , Face , Melanoma/etiology
Estud. interdiscip. envelhec ; 23(3): 159-173, dez. 2018. tab
Article in Portuguese | LILACS, INDEXPSI | ID: biblio-1010382


Objetivo: Identificar a presença do envelhecimento precoce de pele em pescadores de Salinópolis/PA. Métodos: A pesquisa foi realizada com 275 pescadores, de 18 a 59 anos, no período de março a maio de 2016, sendo aplicados dois questionários: "Protocolo de Avaliação Facial ­ PAF" e "Hábitos de exposição e fotoproteção solar", ambos modificados pelas pesquisadoras. Resultados: Foi observada prevalência de trabalhadores praianos de 26 a 35 anos (36%), pele parda (70%), fototipo III (64%) e com a presença de fotoenvelhecimento (61%), que se expunham diariamente ao sol (97%), não possuíam cuidados com a pele (91%) e não usavam protetor solar (92%). Os voluntários relataram que não gostavam de aplicar protetor solar (59%) e desconheciam que a radiação ultravioleta causava envelhecimento da pele (60%), manchas na pele (54%) ou câncer (56%). Conclusão: A maioria dos pescadores não utilizavam fotoprotetores e apresentavam fotoenvelhecimento com predisposição a desenvolver câncer de pele. (AU)

Objective: To identify the presence of precocious skin aging in fishermen in Salinópolis/PA. Methods: The research was carried out with 275 fishermen, from 18 to 59 years of age, from March to May 2016. Two questionnaires were applied: "Facial Evaluation Protocol ­ PAF" and "Habits of exposure and solar photoprotection", both modified by the researchers. Results: The prevalence of beach workers from 26 to 35 years of age (36%), of brown skin (70%), phototype III (64%) and photoaging (61%), who were exposed daily to the sun (97%), did not have skin care (91%) and did not use sunscreen (92%). The volunteers reported that they did not like to apply sunscreen (59%) and were unaware that ultraviolet radiation caused skin aging (60%), skin blemishes (54%) or cancer (56%). Conclusion: Most fishermen did not use photoprotectors and presented photoaging with a predisposition to develop skin cancer. (AU)

Humans , Adolescent , Adult , Middle Aged , Skin Neoplasms/etiology , Sunscreening Agents/administration & dosage , Ultraviolet Rays/adverse effects , Skin Aging/radiation effects , Fisheries , Sunlight/adverse effects , Cross-Sectional Studies
Braz. dent. j ; 29(2): 214-221, Mar.-Apr. 2018. tab, graf
Article in English | LILACS | ID: biblio-951537


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 was performed in Dona Inês, Paraíba, Brazil between 2014 and 2015. A clinical examination, clinical photography and a questionnaire were applied to 201 extractive mining workers. The T-student's, ANOVA one-way, Fisher's exact and Pearson chi-squared tests were performed and the significance level was set at 5%. A high prevalence of actinic cheilitis was observed (38.8%). Length of occupational exposure to sunlight in months (169.63±112.68, p=0.002) was associated with actinic cheilitis. Most workers were Caucasian (p<0.001) and aged 37.41±12.15 years (p=0.004). The time of occupational exposure to sunlight was significant in relation to the following clinical features: atrophy (225.75±97.31; p=0.024); blurred demarcation between the vermilion border of the lip and the skin (186.68±113.15; p=0.032); vertical fissures (210.09±123.07; p=0.046); white and red spotting (199.51±91.80; p=0.004); hard consistency of the lip (225.81±122.34; p=0.012). A high prevalence of actinic cheilitis was found. Age and ethnicity were associated with the presence of AC. Severe clinical presentations of actinic cheilitis were found among participants who had worked for at least 185 months (approximately 15 years) exposed to the sun.

Resumo O objetivo foi determinar a prevalência de queilite actínica entre os trabalhadores extrativistas minerais e os fatores associados a esta lesão, principalmente a relação da aparência clínica da lesão com o tempo de exposição ocupacional à luz solar. Foi realizado um estudo transversal, entre 2014 e 2015, em Dona Inês / PB, localizado no Nordeste do Brasil. Foram aplicados um exame clínico, registro fotográfico e um questionário a 201 trabalhadores extrativistas minerais. Realizaram-se os testes "t" student, ANOVA, Exato de Fisher e Qui-quadrado de Pearson, o nível de significância foi de 5%. Observou-se alta prevalência de queilite actínica (38,8%). A duração da exposição ocupacional à luz solar, em meses, (169,63 ± 112,68, p = 0,002) foi associada à presença de queilite actínica. Estes trabalhadores eram, em sua maioria, brancos (p<0.001) com idade média de 37.41±12.15 anos (p=0.004). O tempo de exposição ocupacional à luz solar foi significativo em relação às seguintes características clínicas: atrofia (225,75 ± 97,31; p = 0,024); perda da demarcação entre o vermelhão do lábio e a borda da pele (186,68 ± 113,15; p = 0,032); Fissuras verticais (210,09 ± 123,07; p = 0,046); Manchas brancas e vermelhas (199,51 ± 91,80; p = 0,004); Consistência dura do lábio (225,81 ± 122,34; p = 0,012). Conclui-se que a prevalência de queilite actínica foi alta. A idade e a etnia foram fatores associados a presença de queilite actinica. Os participantes que haviam trabalhado pelo menos 185 meses (aproximadamente 15 anos) sob exposição ao sol, apresentaram manifestações clínicas graves da queilite actínica.

Humans , Male , Female , Adult , Middle Aged , Sunlight/adverse effects , Cheilitis/etiology , Cheilitis/epidemiology , Mining , Occupational Diseases/etiology , Occupational Diseases/epidemiology , Time Factors , Brazil/epidemiology , Cheilitis/ethnology , Prevalence , Cross-Sectional Studies , Occupational Exposure , Age Factors , Race Factors , Occupational Diseases/ethnology
An. bras. dermatol ; 93(1): 39-44, Jan.-Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-887161


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. Method: Cross-sectional study that included 512 students from primary and high school. Data were collected by questionnaires with questions about habits and knowledge on sun protection. For data analysis, Pearson's Chi-square test and Yates test were applied, with 5% level of significance. Results: We evaluated 512 students, with a mean age of 14 years old. The teenagers agreed that ultraviolet rays cause skin cancer and aging (96% and 70%, respectively). Knowledge about the occurrence of burns even on cloudy days was recorded in 68% of cases, as well as the need for photoprotection for sports in 72%. The source of information about sun protection were by parents in 55%. In 70% was observed previous occurrence of sunburn, the daily use of sunscreens was found in 15% and 67% used only at the beach. of sunscreens with SPF higher than 30 was reported by 70% of students and 57% reported going to the beach between 10h and 16h. In 68% of cases it was registered insufficient sun protection, attributed, in 57% of the time to forgetfulness. Study limitations: The sample refers to two schools of Curitiba (PR), Brazil. Conclusion: Teenagers know the risks of sun exposure, but they do not adopt the practices for adequate protection.

Humans , Male , Female , Adolescent , Sunlight/adverse effects , Sunscreening Agents/therapeutic use , Health Knowledge, Attitudes, Practice , Adolescent Behavior , Environmental Exposure/adverse effects , Sunburn , Brazil , Cross-Sectional Studies , Surveys and Questionnaires
Rev. bras. psiquiatr ; 40(1): 6-11, Jan.-Mar. 2018. tab, graf
Article in English | LILACS | ID: biblio-899396


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 Hospital in Orbassano (Turin, Italy) between September 1, 2013 and August 31, 2015 were recruited. Sociodemographic and clinical data were collected. Results: Seven hundred and thirty patients were included. The admission rate for bipolar patients was significantly higher during May, June and July, when there was maximum sunlight exposure, although no seasonal pattern was found. Patients with (hypo)manic episodes were admitted more frequently during the spring and during longer photoperiods than those with major depressive episodes. Conclusions: Photoperiod is a key element in bipolar disorder, not only as an environmental factor but also as an important clinical parameter that should be considered during treatment.

Humans , Male , Female , Adult , Seasons , Sunlight/adverse effects , Bipolar Disorder/etiology , Bipolar Disorder/psychology , Photoperiod , Socioeconomic Factors , Sex Factors , Depressive Disorder, Major , Hospitalization/statistics & numerical data , Italy , Mental Disorders/classification , Mental Disorders/etiology , Mental Disorders/psychology
Rev. Hosp. Ital. B. Aires (2004) ; 37(4): 157-159, dic. 2017. ilus
Article in Spanish | LILACS | ID: biblio-1096381


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 suele ser suficiente para el control de la enfermedad, pero en formas más graves se requieren otras terapéuticas, como corticoides, antihistamínicos, o fototerapia, que genera una "fotoadaptación" de las áreas de piel afectadas. Presentamos un caso típico de erupción polimorfa solar que respondió de forma adecuada a medidas de fotoprotección. (AU)

The polymorphic solar eruption is the most frequent photodermatosis, and usually appears in spring with the first intense exposure to the sun. It has multiple cutaneous manifestations, and its diagnosis is based on the clinic and the antecedent of solar exposition. In mild cases, photoprotection is usually enough to control the disease, but in more severe forms, other therapies are required, such as corticosteroids, antihistamines, or phototherapy to generate a "photo-adaptation" of the affected skin areas. We present a typical case of polymorphic solar eruption that responded adequately to photoprotection measurements. (AU)

Humans , Female , Adult , Photosensitivity Disorders/diagnosis , Sunlight/adverse effects , Erythema/diagnosis , Phototherapy , Photosensitivity Disorders/immunology , Photosensitivity Disorders/pathology , Quality of Life , Seasons , Sunscreening Agents/therapeutic use , Azathioprine/therapeutic use , Thalidomide/therapeutic use , Ultraviolet Rays/adverse effects , Ultraviolet Therapy , Adrenal Cortex Hormones/therapeutic use , Cholecalciferol/therapeutic use , Erythema/etiology , Erythema/immunology , Erythema/pathology , Histamine Antagonists/therapeutic use , Antimalarials/therapeutic use
An. bras. dermatol ; 92(6): 793-800, Nov.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-887112


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 samples of subjects with no history of skin diseases. Methods: Skin samples were obtained by punch on sun-exposed and sun-protected arm areas from 24 corpses of 16-89 years of age. Genomic DNA was extracted from skin samples that were ranked according to Fitzpatrick's criteria as light, moderate, and dark brown. Global DNA methylation and hydroxymethylation and DNA methylation analyses at specific sites were performed using ELISA and MSP, respectively. Results: No significant differences in global DNA methylation and hydroxymethylation levels were found among the skin areas, skin types, or age. However, gender-related differences were detected, where women showed higher methylation levels. Global DNA methylation levels were higher than hydroxymethylation levels, and the levels of these DNA modifications correlated in skin tissue. For specific sites, no differences among the areas were detected. Additional analyses showed no differences in the methylation status when age, gender, and skin type were considered; however, the methylation status of the miR-9-1 gene seems to be gender related. Study limitations: there was no separation of dermis and epidermis and low sample size. Conclusion: sun exposure does not induce changes in the DNA methylation and hydroxymethylation status or in miR-9-1, miR-9-3 and MTHFR genes for the studied skin types.

Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Young Adult , Skin/radiation effects , Skin Diseases/etiology , Sunlight/adverse effects , DNA Methylation/genetics , Reference Values , Skin/chemistry , Enzyme-Linked Immunosorbent Assay , Sex Factors , Polymerase Chain Reaction , Age Factors , Radiation Exposure , MicroRNAs/genetics , Methylenetetrahydrofolate Reductase (NADPH2)/genetics , Epigenomics
An. bras. dermatol ; 92(6): 774-778, Nov.-Dec. 2017. tab
Article in English | LILACS | ID: biblio-887115


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 associated with clinical manifestations of AP such as skin and mucosal lesions. Methods: Thirty patients with AP and 60 controls were included in the study, the dependent variable was the presence of skin or labial mucosal lesions, the independent variables were age, sex, solar exposure, living with pets or farm animals, exposure to wood smoke, smoking habit, years smoking, and hours spent per day and per week in contact with people who smoke. Results: Of the 30 diagnosed AP patients, 66.7% were female. Patients age ranged from 7 to 71 years and the mean age was 35.77 ± 14.55 years. We found significant differences with the age and cohabitation with farm animals. Those who lived with farm animals presented 14.31 times higher probability of developing AP (95% CI 3-78.06). Study limitations: This is a case-control study; therefore, a causal relationship cannot be proven, and these results cannot be generalized to every population. Conclusions: The identification of factors related to the development of AP increases our knowledge of its physiopathology. Moreover, identifying antigens that possibly trigger the allergic reaction will have preventive and therapeutic applications in populations at risk of AP.

Humans , Animals , Male , Female , Child , Adolescent , Adult , Middle Aged , Aged , Young Adult , Photosensitivity Disorders/etiology , Skin Diseases, Genetic/etiology , Environmental Exposure/adverse effects , Photosensitivity Disorders/physiopathology , Skin Diseases, Genetic/physiopathology , Sunlight/adverse effects , Time Factors , Case-Control Studies , Logistic Models , Risk Factors , Age Factors , Statistics, Nonparametric , Hypersensitivity/etiology , Hypersensitivity/physiopathology , Animals, Domestic
An. bras. dermatol ; 92(6): 785-792, Nov.-Dec. 2017. tab, graf
Article in English | LILACS | ID: biblio-887119


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 teachers of the basic education network from city of Pelotas, southern Brazil. Methods: A census type study was conducted with physical education teachers of the basic education network from Pelotas. This study assessed the time of exposure to the sun in the workplace for at least 20 min, between 10am and 4pm, and the use of sunscreen during the workday. Results: 188 teachers answered the questionnaire. The prevalence of exposure to the sun between 10:00am and 4:00pm was 89.2% (95% CI of 83.8% -93.3%), while sunscreen use was 63.3% (95% CI of 56.0% -70.2%). However, when the sample was stratified by sex, women reported a higher rate of sunscreen use (78.5% -95% CI of 72.2-84.3) than men (38.9% -95% CI of 31.8-46.2) (p<0.001). Teachers with longer work weeks were at greater risk of exposure to the sun. In addition, women, with normal weight and who worked less hours, were more likely to use sunscreen. Study limitations: Cross-sectional study and lack of information on the proper use and frequency of use of sunscreen. Conclusion: Physical education teachers were highly exposed to solar radiation, and less than two-thirds used sunscreen during the workday. Interventions with this professional group are necessary to reduce the risk of skin cancer.

Humans , Male , Female , Adult , Middle Aged , Physical Education and Training , Sunlight/adverse effects , Sunscreening Agents/therapeutic use , Occupational Exposure/statistics & numerical data , Skin Neoplasms/prevention & control , Time Factors , Brazil/epidemiology , Prevalence , Cross-Sectional Studies , Multivariate Analysis , Surveys and Questionnaires , Risk Factors , Sex Distribution , Age Distribution , Occupational Diseases/prevention & control
An. bras. dermatol ; 92(2): 206-210, Mar.-Apr. 2017. tab
Article in English | LILACS | ID: biblio-838040


Abstract: Background: The incidence of skin cancer has increased worldwide, particularly melanoma rates, which had a mean development of 2.6 % a year in the last 10 years. The agreement on the relation between long-term or chronic exposure to the sun and the emergence of these neoplasias has made several workers who perform activities exposed to solar radiation to form a risk group for the development of skin cancer, community health agents included. OBJECTIVES: To analyze the prevalence of sunscreen-use-related factors to skin cancer in a labor risk group. METHODOLOGY: Cross-sectional study with community health agents selected through simple random sampling. After collecting data using semi-structured interviews, a descriptive analysis was performed for the qualitative variables, bivariate analysis was employed for checking the association between sunscreen use and sociodemographic, occupational and knowledge about skin variables, and multivariate analysis was conducted to check independent variables associated to sunscreen use. A 5% significance level was used. Results: Of 261 health gents selected, 243 were able to participate in the study. The prevalence rate of sunscreen use was 34.2% (95% CI: 28.2-40.2). Factors associated with sunscreen use were female sex, advanced age, use of sunscreen in situations when the skin got burnt, knowledge of the negative effects of the sun on the skin and skin cancer history. Conclusions: The prevalence found reveals that there is a need for implementing educational strategies in health services regarding photoprotection.

Male , Female , Adult , Middle Aged , Young Adult , Skin Neoplasms/prevention & control , Skin Neoplasms/epidemiology , Sunscreening Agents/therapeutic use , Melanoma/prevention & control , Melanoma/epidemiology , Sunlight/adverse effects , Ultraviolet Rays/adverse effects , Brazil/epidemiology , Sex Factors , Health Knowledge, Attitudes, Practice , Epidemiologic Methods , Age Factors , Health Personnel , Neoplasms, Radiation-Induced
Rev. Assoc. Med. Bras. (1992) ; 62(3): 280-286, May-June 2016. tab, graf
Article in English | LILACS | ID: lil-784318


SUMMARY Objective: To analyze the epidemiological profile, risk factors in the workplace environment and prevention methods for professionals at risk of skin cancer. Method: A systematic review of articles on occupational skin cancer, published in the Lilacs, Scielo, Medline and Cochrane Library from January 1st, 2008, to December 31st, 2013, was performed. The search included the following terms: “neoplasias cutâneas” (DeCS), “exposição ocupacional” (DeCS), “epidemiologia” (DeCS) as well as the keyword “prevenção”, and their equivalents in English. Results: After analyzing the titles and summaries of articles, the search strategy resulted in 83 references, of which 22 articles met the eligibility criteria. Discussion: We found that sun exposure is the main occupational risk factor for skin cancer, causing outdoor workers to be the most vulnerable to developing occupational skin cancer. Professionals with low levels of education and European descent are at increased risk of developing this cancer. Conclusion: Outdoor workers are more vulnerable to developing occupational skin cancer, estimating that professionals with low level of education and European descent are at increased risk of developing this cancer. Therefore, companies need to invest more in the health of workers by providing protective equipment and thus preventing occupational skin cancer.

RESUMO Objetivo: analisar o perfil epidemiológico, os fatores de risco no ambiente de trabalho e os métodos de prevenção dos profissionais de risco para câncer de pele. Método: foi realizada uma revisão sistemática de artigos sobre o câncer de pele ocupacional, publicados entre 1 de janeiro de 2008 e 31 de dezembro de 2013, nas bases de dados Lilacs, Scielo, Medline e Biblioteca Cochrane. A pesquisa baseou-se na intersecção dos seguintes termos: “neoplasias cutâneas” (DeCS), “exposição ocupacional” (DeCS), “epidemiologia” (DeCS) e a palavra-chave “prevenção” e seus equivalentes em inglês. Resultados: após a análise dos títulos e resumos dos artigos, a estratégia de busca resultou em 83 referências, das quais 22 artigos preencheram os critérios de elegibilidade. Discussão: a exposição solar é o principal fator de risco ocupacional para câncer de pele e os trabalhadores ao ar livre são os mais vulneráveis a desenvolvê-lo. Aqueles com baixo nível de escolaridade e ascendência europeia apresentam maior risco de desenvolver a neoplasia. Conclusão: os trabalhadores ao ar livre são mais vulneráveis a desenvolver câncer de pele ocupacional. Os profissionais com baixo nível de escolaridade e ascendência europeia apresentam maior risco de desenvolver a neoplasia. São necessários mais investimentos das empresas na saúde dos trabalhadores por meio de fornecimento de equipamentos de proteção, a fim de prevenir o câncer de pele ocupacional.

Humans , Male , Female , Skin Neoplasms/prevention & control , Occupational Exposure , Melanoma/prevention & control , Occupational Diseases/prevention & control , Skin Neoplasms/etiology , Skin Neoplasms/epidemiology , Sunlight/adverse effects , Risk Factors , Workplace , Educational Status , Melanoma/etiology , Melanoma/epidemiology , Occupational Diseases/etiology , Occupational Diseases/epidemiology
An. bras. dermatol ; 91(1): 34-39, Jan.-Feb. 2016. tab, graf
Article in English | LILACS | ID: lil-776418


Abstract BACKGROUND: The role played by vitamin D in atopic dermatitis is controversial and has been the focus of many studies. The ultraviolet index has not been considered in this type of research. OBJECTIVES: The objectives of the study were to assess 25-hydroxy vitamin D [25(OH)D] serum level in atopic dermatitis patients and control group, to investigate the association between atopic dermatitis clinical severity (using the SCORing Atopic Dermatitis index - SCORAD) and 25(OH)D serum levels, and to evaluate the independent predictors, including Ultraviolet index, SCORAD and 25(OH)D. METHODS: We conducted a cross-sectional study of 106 atopic dermatitis patients. A control group was matched with a subsample of 54 participants with atopic dermatitis. SCORAD index, laboratory tests, and local Ultraviolet index were assessed. RESULTS: The atopic dermatitis patients had serum 25(OH)D levels and mean UVI significantly higher than the control group. Immunoglobulin E and Ultraviolet index were associated with the SCORAD index. Skin type, age and Ultraviolet index were independent predictors of 25(OH)D. CONCLUSIONS: Although statistically significant, the different levels of 25(OH)D between the paired groups may be attributed to the higher mean Ultraviolet index in atopic dermatitis patients. Since Ultraviolet index is an independent predictor of SCORAD index and of 25(OH)D level, it may work as a confounding factor in studies involving atopic dermatitis and 25(OH)D and must be considered in this kind of research.

Adolescent , Child , Child, Preschool , Female , Humans , Male , Dermatitis, Atopic/blood , Ultraviolet Rays , Vitamin D Deficiency/epidemiology , Vitamin D/analogs & derivatives , Brazil/epidemiology , Case-Control Studies , Cross-Sectional Studies , Dermatitis, Atopic/etiology , Dermatitis, Atopic/pathology , Immunoglobulin E/blood , Reference Values , Risk Factors , Seasons , Severity of Illness Index , Statistics, Nonparametric , Sunlight/adverse effects , Time Factors , Ultraviolet Rays/adverse effects , Vitamin D Deficiency/complications , Vitamin D/blood
An. bras. dermatol ; 90(4): 505-512, July-Aug. 2015. tab
Article in English | LILACS | ID: lil-759205


AbstractBACKGROUND:Actinic cheilitis (AC) is a potentially malignant disorder of the lip caused by chronic exposure to ultraviolet radiation from the sun.OBJECTIVES:To evaluate the clinical, demographic, morphological and therapeutic management in AC cases data associating to the histopathological grading.METHODS:Demographic, clinical and management data of 161 patients with AC were analyzed. In biopsied cases, two calibrated examiners performed histopathological grading by binary system.RESULTS:There was a prevalence of males (79.5%), aged 40 years or older (77.5%), light-skinned (85.7%), experiencing occupational exposure to sunlight (80.3%), with AC presenting clinically as white lesions (33.6%). Conservative treatment was adopted in 78 cases and biopsy in 83 cases (60.2% graded as low-risk AC). There were no significant associations between histopathological grading and gender (p= 0.509), age (p=0.416), ethnicity (p=0.388), occupational exposure to sunlight (p=1.000) or clinical presentation (p=0.803).CONCLUSION:This study reinforces the hypothesis that demographic and clinical characteristics of AC are not related to histopathological grading. Advice on protection from sun exposure should be encouraged to avoid progression of AC and invasive therapies.

Adult , Aged , Female , Humans , Male , Middle Aged , Cheilitis/pathology , Cheilitis/therapy , Age Factors , Biopsy , Brazil , Cheilitis/etiology , Occupational Exposure/adverse effects , Retrospective Studies , Risk Assessment , Risk Factors , Severity of Illness Index , Sex Distribution , Sex Factors , Sunlight/adverse effects
An. bras. dermatol ; 90(3): 297-313, May-Jun/2015. tab, graf
Article in English | LILACS | ID: lil-749651


Abstract The beneficial and harmful effects of human exposure to solar ultraviolet radiation (UV-R) are topics that arouse great interest not only among physicians and scientists, but also the general public and the media. Currently, discussions on vitamin D synthesis (beneficial effect) are confronted with the high and growing number of new cases of non-melanoma skin cancer and other diseases of the skin and eyes (harmful effect) diagnosed each year in Brazil. However, the lack of scientific knowledge on the UV-R in Brazil and South America leads to adoption of protective measures based on studies conducted in Europe and USA, where the amounts of UV-R available at surface and the sun-exposure habits and characteristics of the population are significantly different from those observed in Brazil. In order to circumvent this problem, the Brazilian Society of Dermatology recently published the Brazilian Consensus of Photoprotection based on recent studies performed locally. The main goal of this article is to provide detailed educational information on the main properties and characteristics of UV-R and UV index in a simple language. It also provides: a) a summary of UV-R measurements recently performed in Brazil; b) a comparison with those performed in Europe; and, c) an evaluation to further clarify the assessment of potential harm and health effects owing to chronic exposures.

Humans , Environmental Exposure/adverse effects , Environmental Exposure/statistics & numerical data , Sunlight/adverse effects , Ultraviolet Rays/adverse effects , Brazil , Climate Change , Radiation Dosage , Radiation Protection , South America , Sunbathing , Skin Neoplasms/etiology , Stratospheric Ozone/chemistry , Time Factors , Vitamin D/metabolism
An. bras. dermatol ; 90(3,supl.1): 185-187, May-June 2015. ilus
Article in English | LILACS | ID: lil-755792



The actinic comedonal plaque is characterized by papules, cysts and comedones forming a yellowish plaque in areas of chronic sun exposure skin. There are few reports in literature about this entity, considered a rare and ectopic form of Favré-Racouchot Syndrome. We report two cases of lesions located on forearms and thorax. Favré-Racouchot Syndrome is a condition usually restricted to the periorbital area; however, there are reports of similar findings in atypical locations, such as forearms and chest, which are known as actinic comedonal plaque. Ultraviolet radiation exposure is the main factor involved in its pathogenesis. The objective of this study was to provide accurate knowledge of this dermatosis and stimulate dermatologists to provide a correct diagnosis of the condition.


Aged , Female , Humans , Male , Middle Aged , Erythema/pathology , Facial Dermatoses/pathology , Skin/pathology , Biopsy , Sunlight/adverse effects
In. Curitiba. Diagnóstico em patologia bucal. Rio de Janeiro, Elsevier, 4 ed; mar. 2013. p.316-326, tab, ilus. (BR).
Monography in Portuguese | LILACS, BBO | ID: biblio-872071