Hábitos de fotoprotección en los niños que concurren a Dermatología Pediátrica del Centro Hospitalario Pereira Rosell: Photoprotective habits in children seen at the Pediatric Dermatology Unit of CHPR / Photoprotective habits in children seen at the Pediatric Dermatology Unit of CHPR

Introducción: la exposición a la radiación ultravioleta durante la infancia y la adolescencia juega un papel trascendente en el desarrollo futuro del cáncer de piel. Los niños se exponen al sol tres veces más que los adultos y antes de los 21 años se ha recibido entre el 50 y el 80 % de la radiación solar total. Objetivo: conocer qué saben los padres de la población objetivo sobre los efectos del sol en la piel y los ojos, y cuáles son sus hábitos de fotoprotección, los de sus hijos y los factores relacionados con ello. Métodos: estudio transversal a padres de niños que concurrieron a la policlínica de Dermatología Pediátrica del Centro Hospitalario Pereira Rossell durante los meses de octubre 2013 a enero 2014. Resultados: se entrevistó a un total de 100 padres, la media de edad de los hijos fue de 7,85 años, el 62% de los niños eran provenientes de familias de bajo nivel socioeconómico y educacional. El 43% de los encuestados respondió que le gusta estar bronceados, en comparación con un 28% que no le gusta. La medida de fotoprotección más utilizada tanto por padres (73%) como por hijos (86%) fue el protector solar, seguida de los lentes de sol en los adultos y del uso rutinario de sombrero en los niños. Conclusiones: los métodos utilizados se basan en gran medida en el uso de protectores solares con un uso inadecuado de los mismos en gran parte de los encuestados.

Introduction: exposure to ultraviolet radiation during childhood and adolescence plays an important role in the future development of skin cancer. Children are three times more sun exposed than adults. Before age 21, people receive between 50 and 80% of the total solar radiation throughout their lives. Objective: to determine what parents know about the impact of the sun on the skin and eyes, and to learn about their photoprotective habits for them and their children and some associated factors. Methods: a cross-sectional study to parents of children who were seen at the Pediatric Dermatology Unit of CHPR during the months of October 2013 to January 2014. Results: a total of 100 surveys were conducted, the average age of the children was 7.85 years old, 62% of the children came from families of low socioeconomic status. 43% of respondents declared who like to be tan, compared to 28% who did not like it. The most widely used photoprotective measure by both parents (73%) and children (86%) was sunscreen, followed by sunglasses in adults and the routine use of a cap by children. Conclusions: the photoprotection method used is based largely, on sunscreen but with an improper use in most of the respondents.

Anti-irritant Effect of Aloe Vera Gel Against a Lactic Acid Sting Test Reaction / 대한피부과학회지

BACKGROUND: Aloe vera has been used for medical purposes since antiquity, so it is known as the healing plant or silent healer. It has been claimed that aloe has several important therapeutic properties, including wound healing, thermal injury healing and anti-inflammation and immunomodulation properties. Because of these effects, it has become an ingredient in a wide variety of cosmetic products, including night creams, soaps, shampoos, suntan lotions and cleansers. OBJECTIVE: In order to determine the anti-irritant effect of aloe vera, we compared the degree of stinging intensity caused by 10% lactic acid solution and a mixture of 20% lactic acid and 100% aloe vera. METHODS: We carried out sting tests on 34 volunteers who were all over 20 years of age and they had no past and present history of atopic dermatitis and other eczema. The lactic acid sting test consisted of a 10-minute exposure on the left cheek with 10% lactic acid solution using a Hilltop chamber and the subjects recorded the degree of stinging intensity by themselves every 1 minute during 10-minutes of exposure. We also carried out a sting test with a mixed solution of 20% lactic acid and 100% aloe vera, and we compared the intensity and onset time of the stinging sensation. RESULTS: Aloe vera had some effect to ameliorate the intensity of the stinging sensation and also to delay the time required for the stinging sensation caused by lactic acid. There was a significant difference between the two groups (p<0.05). CONCLUSION: We found that aloe vera has an anti-irritant effect on the stinging sensation caused by lactic acid.

Anti-irritant Effect of Aloe Vera Gel Against a Lactic Acid Sting Test Reaction / 대한피부과학회지

BACKGROUND: Aloe vera has been used for medical purposes since antiquity, so it is known as the healing plant or silent healer. It has been claimed that aloe has several important therapeutic properties, including wound healing, thermal injury healing and anti-inflammation and immunomodulation properties. Because of these effects, it has become an ingredient in a wide variety of cosmetic products, including night creams, soaps, shampoos, suntan lotions and cleansers. OBJECTIVE: In order to determine the anti-irritant effect of aloe vera, we compared the degree of stinging intensity caused by 10% lactic acid solution and a mixture of 20% lactic acid and 100% aloe vera. METHODS: We carried out sting tests on 34 volunteers who were all over 20 years of age and they had no past and present history of atopic dermatitis and other eczema. The lactic acid sting test consisted of a 10-minute exposure on the left cheek with 10% lactic acid solution using a Hilltop chamber and the subjects recorded the degree of stinging intensity by themselves every 1 minute during 10-minutes of exposure. We also carried out a sting test with a mixed solution of 20% lactic acid and 100% aloe vera, and we compared the intensity and onset time of the stinging sensation. RESULTS: Aloe vera had some effect to ameliorate the intensity of the stinging sensation and also to delay the time required for the stinging sensation caused by lactic acid. There was a significant difference between the two groups (p<0.05). CONCLUSION: We found that aloe vera has an anti-irritant effect on the stinging sensation caused by lactic acid.

A Study on Anti-irritant Effect of Aloe Vera Gel Against the Irritation of Sodium Lauryl Sulfate / 대한피부과학회지

BACKGROUND: Aloe vera has been used for medical purposes since antiquity, so it has been known as the healing plant or silent healer. It has been claimed that aloe has several important therapeutic properties including promotion of wound healing, thermal injury healing, anti-inflammation and immunomodulation. Using these effects, it has become an ingredient in a wide variety of cosmetic products including night creams, soaps, shampoos, suntan lotions, and cleansers. OBJECT: In order to investigate the anti-irritant effect of aloe vera we measured transepidermal water loss (TEWL) and erythema index (E-index) after performing a patch test using sodium lauryl sulfate (SLS) and aloe vera we then compared the extent of damaging effect on the skin barriers and the difference of the recovery process in each case. METHODS: Fifteen volunteers, all over 18 years of age, who hadn't had past or present history of atopic dermatitis and other eczemas, were tested in this study. SLS was dissolved in distilled water to the concentration of 1% and aloe vera gel was dissolved in distilled water to the concentrations of 10, 20, 50, and 100%. Then we mixed 1% SLS solution and each concentration of aloe vera solution with the ratio 1: 1. Each solution was applied to marked sites of both volar aspect of the forearm at random, for 24 hours, using large Finn chamber with filter paper. TEWL and E-index were measured before test (BL) and at 30 minutes (D0), 1st day (D1), 2nd day (D2), 1st week (W1), 2nd week (W2), and 3rd week (W3) after removal of the patches. RESULTS: TEWL after removing a patch of 0.5% SLS was higher than that of 100% aloe vera mixed with 1% SLS. In addition, TEWL after removing a patch of 0.5% SLS and 100% aloe vera patch mixed with 1% SLS were higher than that of 100% aloe vera. E-index after removing a patch of 0.5% SLS was higher than that of 50% aloe vera mixed with 1% SLS, 100% aloe vera mixed with 1% SLS, and 100% aloe vera. CONCLUSION: We have come to know that aloe vera has an effect in the recovery of skin barriers and erythema induced by irritant such as SLS. However, it only happens when the gel of aloe vera has a high concentration.

Side Effects of Suntan

Increased pigmentation of skin after sun exposure is a normal response to solar radiation. Like sunburn, suntan can also be produced by natural solar radiation and by artificial, narrow-spectrum ultraviolet B and ultraviolet A sources. The tanning response is a sign of ultraviolet damage. The western search for the suntan has led to an increased incidence of photoaging and skin cancer of light-skinned individuals. Photoaging is characterized by wrinkling, coarseness, dryness, mottled pigmentation, loss of elasticity, easy bruising, telangiectasias, and benign, premalignant and malignant growths on sun-exposed areas. Photoagings is a slow process, taking decades to become clinically apparent and even longer for all the manifestations to occur. Development of photoagings is determined both by genetic skin type and by the total lifetime radiation dose. Photoaging is more apparent in light-skinned Caucasians than in dark-skinned people. Although it is not possible to state what proportion is due to chronologic aging and what is due to photoaging, it has been estimated that photodamage may account for greater than 90 percent of the age- associated cosmetic problems of the skin. The proliferation of natural tanning and tanning salons should be discouraged by physicians. There is no safe tan.