Development, physicochemical evaluation, and in vivo permeation studies of topical formulations containing 0.1% tacrolimus

Abstract The objective of this paper was to develop and evaluate two semi-solid pharmaceutical forms containing 0.1% tacrolimus: cream (CRT01) and gel (GLT01). For the evaluation of physicochemical stability, at times 0, 30, 60 and 90 days, at 23°C and at 40°C, High Performance Liquid Chromatography coupled with a Diode Array Detector (HPLC-DAD) was employed. This method was developed and validated for tacrolimus quantification. The occlusivity test and skin permeation assay were also performed, using an animal model (Wistar rats), and the CRT01 and GLT01 were compared to the 0.1% tacrolimus ointment (PFU01) obtained from the University Pharmacy, Federal University of Rio de Janeiro, Brazil. CRT01 and GLT01 presented a homogeneous aspect and consistency adequate for topical products, along with sensory characteristics above PFU01. They also presented adequate physicochemical stability for 90 days and a lower occlusive effect than PFU01 (p<0.05). CRT01 showed greater affinity for the skin when compared to PFU01 and GLT01, with low systemic absorption. The CRT01 semi-solid formulation was considered the most adequate one to treat patients with atopic dermatitis or other dermatologic inflammatory diseases, promoting rational use of tacrolimus

Analysis of filaggrin 2 gene polymorphisms in patients with atopic dermatitis

Abstract Background: Polymorphisms of the filaggrin 2 gene (rs 12568784 and rs 16899374) are associated with persistent atopic dermatitis in African American patients. Filaggrin 2 is a protein with a function similar to filaggrin and also encoded in the epidermal differentiation complex on chromosome 1q21. Objective: To evaluate the polymorphisms in the filaggrin 2 gene (rs 12568784 and rs 16899374) in children and adults with atopic dermatitis and to verify the association of these with the severity of the clinical picture, presence of other allergic diseases, and socio-demographic factors. Method: The study was carried out with patients and control group. Questionnaires were used to evaluate ethnicity, sex, age, family history, scoring, atopic dermatitis (SCORAD), among other parameters. Genotyping of the filaggrin 2 gene was performed by real-time polymerase chain reaction. Results: Forty-eight patients and 83 controls were evaluated. No correlation was found between the variables studied in patients with atopic dermatitis and polymorphisms, no significant difference between the prevalence of polymorphisms in the patients and in the control group p > 0.05. Study limits: The exclusive use of self-reported ethnicity information and the sample size. Results: The results of this work can be an incentive for the study of the polymorphisms in atopic dermaititis, considering the characteristic of the Brazilian multi ethnic population. Conclusion: This is an unpublished work in Brazil and the first study in the world to have a control group to evaluate alterations in the gene of filaggrin 2.

Correlation of nipple eczema in pregnancy with atopic dermatitis in Northern India: a study of 100 cases

Abstract Background Nipple eczema is a less common presentation of atopic dermatitis. No studies in the literature have correlated nipple eczema in pregnancy as a manifestation of atopic dermatitis. Objective To evaluate whether nipple eczema presenting in pregnancy is a manifestation of atopic dermatitis. Methods This was a prospective observational study including 100 women who presented with nipple eczema for the first time during pregnancy. The exclusion criteria were any patient with previous history of nipple eczema, those already on oral or topical treatment for atopic dermatitis or nipple eczema, and other disorders mimicking eczema. Patients were divided into two groups ‒ nipple eczema with atopic dermatitis and without atopic dermatitis. Demographic data, clinical features, total leukocyte count, differential leukocyte count, absolute eosinophil counts, and serum IgE levels were compared between the two groups to detect association between nipple eczema in pregnancy and atopic dermatitis. Results Out of 100 patients, 39 were diagnosed with atopic dermatitis, whereas 61 were ruled out to have any features suggestive of atopic dermatitis. There were no statistically significant differences in mean age, mean duration of symptoms, and serum IgE levels. In patients with atopic dermatitis, bilateral symptoms were noted more commonly than in patients without the disease, but this was statistically insignificant. Study limitations Lack of long term follow-up and no large studies in literature to compare results. Conclusion Nipple eczema in pregnancy follows a similar pattern as in other age groups. The clinical profile of patients is similar in cases with and without atopic dermatitis.

Compliance to mothers' instructions with medical treatment / Obediência às instruções maternas em situação de tratamento médico / Obediencia a las instrucciones maternas para el tratamiento médico

Atopic dermatitis is a chronic skin disease with unknown etiology and high incidence in childhood. Although the response of following medical recommendations is an important behavior to control the symptoms, there are high rate responses of nonfollowing prescriptions, described as noncompliance. This study evaluated, in a brief direct assessment, the control exerted by direct and indirect instructions, verbalized by mothers, in compliance with medical treatment. Four girls, ages 9, 12, 13 and 14, diagnosed with atopic dermatitis and theirs mothers. They were scheduled outpatients at the dermatology department of a tertiary university hospital. The behavioral assessment was conducted according to a brief multielement experimental design in three phases. The use of direct instructions increased the probability of compliance behaviors, especially when associated with physical guide and praise. The results of this study can be important to identify the most important variables in the treatment of children with atopic dermatitis and to develop group or individual intervention programs.

A dermatite atópica é uma doença crônica de pele com etiologia desconhecida e alta incidência na infância. Embora a emissão de respostas para o seguimento de recomendações médicas seja um importante comportamento para o controle dos sintomas, existe elevadas taxas de respostas de não seguimento das recomendações médicas, compreendida como desobediência ou não adesão. O presente estudo avaliou, em uma breve avaliação direta, o controle exercido por instruções diretas e indiretas, verbalizadas pelas mães, no comportamento de obediência às em situação de tratamento médico. Participaram do estudo quatro meninas, com idades entre 9 e 14 anos, diagnosticadas com dermatite atópica e suas mães. Elas foram recrutadas no departamento de dermatologia de ambulatório de especialidades de um hospital escola. A avaliação comportamental foi realizada por meio do delineamento experimental de multielementos, realizado em três fases. O uso de instruções diretas aumentou a probabilidade de emissão de comportamentos de obediência, especialmente quando associados ao uso de condução física e elogios. Os resultados deste estudo podem ser importantes para identificar as variáveis mais importantes no tratamento de crianças com dermatite atópica e para desenvolver programas de intervenção individuais ou em grupo com esta população.

La dermatitis atópica es una enfermedad crónica de la piel con etiología desconocida y de alta incidencia en la infancia. Aunque es importante seguir las recomendaciones médicas, hay altas influencias para no seguir las recomendaciones médicas, descriptas como desobediencia. Este estudio evaluó, en una breve evaluación directa, el control ejercido por las instrucciones directas e indirectas, verbalizada por las madres durante la situación de tratamiento médico. El estudio evaluó a cuatro niñas con dermatitis atopica, entre nueve y catorce años, y a sus madres. Las evaluaciones ocurrirán con pacientes reclutado en el departamento de dermatología de un hospital-escuela. Las evaluaciones ocurrirán en tres etapas según el delineamiento experimental de multielementos. El uso de instrucciones directas e indirectas aumentó la probabilidad de conductas de obediencia, especialmente asociada con la conducción física y el elogio. Los resultados de este estudio pueden ser relevantes para identificar las variables más importantes para el tratamiento de niños con dermatitis atópica y para el desarrollo de programas de intervenciones individuales o grupales.

Ultraviolet index: a light in atopic dermatitis and vitamin D research?

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.

Breastfeeding Initiation and Continuation by Employment Status among Korean Women

PURPOSE: The objective of this study was to examine the factors associated with initiation and continuation of breastfeeding among Korean women in relation to their employment status. METHODS: Data were collected using a web-based self-administered questionnaire from 1,031 Korean mothers living in Seoul with babies younger than 24 months. Demographic characteristics, education on breastfeeding, rooming in, breastfeeding during hospital stay, and breastfeeding knowledge were examined. Multivariate logistic regression analyses were performed to identify factors associated with initiation and continuation at 1, 6 and 12 months according to mothers' employment status. RESULTS: Breastfeeding initiation rates were similar regardless of mothers' employment status. Continuation rates decreased for both groups of mothers, but were significantly lower among employed mothers at all duration points. Unemployed mothers who were able to keep their babies in the same room during the hospital stay were more likely to initiate breastfeeding. The factor that was consistently associated with breastfeeding continuation for all duration points among unemployed mothers was whether the mother breastfed during the hospital stay. Higher knowledge scores and having an infant with atopic dermatitis were also associated with breastfeeding continuation at 6 months and 12 months, respectively for unemployed mothers, and receiving education on breastfeeding was associated with 12-month continuation for employed mothers. CONCLUSION: These results emphasize the significant roles of hospitals for breastfeeding initiation and continuation, with rooming-in, initial breastfeeding practice and education during hospital stay as important practices. In addition, for working mothers to continue their breastfeeding, significant support from the workplace is crucial.

Methicillin-resistant Staphylococcus aureus colonization and disease severity in atopic dermatitis: A cross-sectional study from South India.

Background: Colonization by methicillin-resistant Staphylococcus aureus (MRSA) in atopic dermatitis is little studied but has therapeutic implications. It may have a role in disease severity given the additional virulence factors associated. Aims: Our aims were to record the proportion of patients with MRSA colonization in atopic dermatitis and to ascertain if any association exists between MRSA colonization and disease severity. Methods: An observational cross-sectional study involving children aged≤12 years with atopic dermatitis attending the outpatient department of Government Medical College, Kottayam was conducted. Socio-demographic data, exacerbating factors and risk factors for hospital care-associated MRSA were documented. Extent of atopic dermatitis was recorded using a standardized scale (Eczema Area Severity Index, EASI). Skin swabs were taken from anterior nares and the worst affected atopic dermatitis sites for culture and sensitivity. Results: Of the 119 subjects recruited during the study period (November 2009-April 2011), Staphylococcus aureus was isolated from 110 (92.4%) patients and MRSA from 30 (25.21%) patients. A total of 18 patients with MRSA had risk factors for healthcare associated-MRSA. The patients whose cultures grew MRSA were found to have significantly higher EASI score when compared to those patients colonized with methicillin sensitive Staphylococcus aureus (P < 0.01). Presence of Staphylococcus aureus, early age of onset, presence of food allergies, seasonal exacerbation and inadequate breastfeeding did not seem to influence disease severity. Conclusions: There is a high degree of prevalence of MRSA (25.2%) in atopic dermatitis and presence of MRSA is associated with increased disease severity. Further studies are needed to validate these findings.

Tissue immunostaining for factor XIIIa in dermal dendrocytes of pityriasis alba skin lesions

BACKGROUND: Pityriasis alba affects 1% of the world population and about 9.9% of the children in Brazil. However, its etiology remains uncertain. OBJECTIVE: The objective of the present study was to evaluate the immunoexpression of factor XIIIa in dermal dendrocytes of skin lesions of pityriasis alba. METHOD: Twenty patients with pityriasis alba and 20 patients with atopic dermatitis underwent biopsy. The dermal dendrocytes marked by factor XIIIa were counted by means of immunohistochemical analysis. RESULTS: The mean amount of dermal dendrocytes found in the patients with pityriasis alba was 2, whereas in the patients with atopic dermatitis it was 4, with a statistically significant difference between them. A cutoff point of 3 cells/square inch was established to differentiate pityriasis alba from atopic dermatitis, with 80% sensibility and 90% specificity. CONCLUSION: We believe that pityriasis alba and atopic dermatitis should be considered different clinical forms within the spectrum of atopic disease, in which sun radiation plays an important role by modulating the progression of the disease. .

Colonization by S. Aureus increases the EASI and the number of appointments by patients with atopic dermatitis: cohort with 93 patients / Colonização por S. aureus eleva o EASI e o número de consultas dos pacientes com dermatite atópica: coorte com 93 pacientes

BACKGROUND: Atopic dermatitis leads to epidermal barrier dysfunction and bacteria colonization. The relationship of the last factor with the severity of the disease and the frequency of exacerbation is not fully known. OBJECTIVES: Verify the severity of the atopic dermatitis and the number of appointments generated by dermatosis, comparing patients colonized with patients not colonized by S. aureus. Verify the frequency of colonization by methicillin resistant Staphylococcus aureus acquired in the community. METHODS: Cohort study with a 12 months follow-up, in a sample of patients from Porto Alegre, RS public network. Cultures in active injuries and nasal cavities were carried out as well as methicillin sensitivity tests to S. aureus. The severity of atopic dermatitis was defined by Eczema Area and Severity Index (EASI). RESULTS: We included 93 patients, 43% female and 56% male, 26 colonized by S. aureus in the nasal orifices, 56 in the skin damage. The mean of initial Eczema Area and Severity Index was 5.5 and final 3.9. The initial Eczema Area and Severity Index of patients colonized by S. aureus in the skin and nasal cavity was larger than the number of patients without colonization(p< 0.05). During the period of one year, in average, there were six appointments/patient. There was linear correlation between the number of appointments during one year and the inicial Eczema Area and Severity Index (r = 0,78). There were no patients ...

FUNDAMENTOS: A Dermatite Atópica cursa com alteração da barreira cutânea e colonização bacteriana; a relação deste último fator com a gravidade da doença e a frequência das exacerbações não é completamente conhecida. OBJETIVOS: Verificar a gravidade da Dermatite Atópica e o número de consultas ocasionadas pela dermatose, comparando pacientes colonizados e não colonizados pelo Staphylococcus aureus (S. aureus). Verificar a frequência de colonização por Staphylococcus aureus meticilina resistentes da comunidade. MÉTODOS: Estudo de coorte, com 12 meses de acompanhamento, em amostra de pacientes da rede pública de Porto Alegre, RS. Realizaram-se culturais de lesões ativas e fossas nasais e testes de sensibilidade à meticilina para o S. aureus. A gravidade da Dermatite Atópica foi estabelecida pelo Eczema Area and Severity Index. RESULTADOS: Incluídos 93 pacientes, 43% femininos e 56% masculinos, 26 colonizados por S. aureus na região nasal, 56 em lesão cutânea. A média do Eczema Area and Severity inicial foi 5,5 e a do final 3,9. O Eczema Area and Severity Index inicial dos pacientes colonizados por S. aureus em lesão cutânea e nas fossas nasais foi maior que o dos pacientes não colonizados (p< 0,05). Em um ano, seis consultas por paciente ocorreram, em média. Houve correlação linear entre ...

Evaluation of the clinical efficacy of cyclosporine in atopic dogs treatment / Avaliação da eficácia da ciclosporina no tratamento de cães atópicos

Atopic dermatitis (AD) is an inflammatory, pruritic and chronic allergic skin disease. It is recognized as the secondmost common allergic skin disease of dogs, after flea allergy. Pruritus is the predominant sign of canine AD, and it affects a variety of areas of the body, leading to intense suffering in both the animal and its owner. The long-term use of glucocorticoid therapy can be devastating because of its numerous side effects and secondary diseases. Cyclosporine (CsA) has been considered a good therapeutic option to treat canine AD. CsA inhibits the activation of cells that initiate the cutaneous immune response (Langerhans cells and lymphocytes) and that mediate allergic reactions (mast cells and eosinophils). It also decreases the release of histamine and other cytokines. The objective of this study was to analyze the efficacy of CsA (5 mg/kg, SID for 60 days) to reduce skin lesions and pruritus in 21 atopic dogs using CADESI-03 and two scales to quantify the levels of body itching. This immunomodulatory therapy was considered to be an effective treatment for atopic dogs because it reduced skin lesions by 70% after 60 days of therapy. During that period, there was a 52.6% reduction of body itching as assessed via a verbal numeric scale, and there was a significant reduction of body itching on a qualitative scale, as the maximal levels of pruritus (“three” and “four”) were hardly observed after immunomodulatory therapy. CsA was effective and safe in the treatment of canine atopic dermatitis.

A atopia ou dermatite atópica é uma doença inflamatória pruriginosa, crônica e recorrente reconhecida como a segunda alergopatia mais comum, estando aquém apenas da dermatite alérgica à picada de pulgas. Esta doença é caracterizada pela presença exacerbada de prurido corpóreo, infringindo sofrimento ao paciente e desalentando seu proprietário. Por se tratar de uma doença de longo decurso, o tratamento com glicocorticoides pode causar diversos efeitos adversos, além de doenças mais graves. Como alternativa ao tratamento de cães atópicos, a ciclosporina (CsA) acaba tornando-se uma boa opção terapêutica. A CsA inibe as funções das células que iniciam a resposta imunológica (células de Langerhans e linfócitos) e das células que efetuam a resposta alérgica (mastócitos e eosinófilos) e, também, diminui a liberação de histamina e de várias citocinas. O objetivo do presente estudo incluiu a: análise da eficácia da CsA (5mg/kg, SID durante 60 dias) na redução de lesões corpóreas e do prurido com auxílio do CADESI-03 e de duas escalas de prurido corpóreo. A CsA mostrou-se eficaz no tratamento da dermatite atópica canina pois reduziu as lesões corpóreas em 70% após 60 dias de terapia. Nesse mesmo período ocorreu redução da intensidade do prurido corpóreo em 52,6%, avaliado através da escala numérica verbal; e observou-se redução significativa na escala qualitativa de prurido corpóreo, uma vez que os níveis máximos de prurido (“três” e “quatro”) quase não foram observados após a terapia imunomodulatória. A CsA mostrou-se eficaz no tratamento da dermatite atópica canina.

Quality of Life and Disease Severity Are Correlated in Patients with Atopic Dermatitis

Quantification of quality of life (QOL) related to disease severity is important in patients with atopic dermatitis (AD), because the assessment provides additional information to the traditional objective clinical scoring systems. To document the impact of AD on QOL for both children and adults as well as to quantify the relationship with disease severity, QOL assessments were performed over a 6-month period on 415 patients with AD. A questionnaire derived from the Infants' Dermatitis Quality of Life Index (IDQOL), the Children's Dermatology Life Quality Index (CDLQI) and the Dermatology Life Quality Index (DLQI) was used to determine the QOL for 71 infants, 197 children and 147 adults, respectively. To measure AD severity, both the Rajka & Langeland scoring system and the Scoring of Atopic Dermatitis (SCORAD) index were used. The mean scores were as follows: 7.7 +/- 5.5 for IDQOL, 6.6 +/- 6.3 for CDLQI, and 10.7 +/- 7.9 for DLQI. In conclusion, these QOL scores are correlated with AD severity scores as estimated by the Rajka & Langeland severity score and the SCORAD. The outcome of the QOL instruments in this study demonstrates that atopic dermatitis of both children and adults affects their QOL.

Quality of Life and Disease Severity Are Correlated in Patients with Atopic Dermatitis

Quantification of quality of life (QOL) related to disease severity is important in patients with atopic dermatitis (AD), because the assessment provides additional information to the traditional objective clinical scoring systems. To document the impact of AD on QOL for both children and adults as well as to quantify the relationship with disease severity, QOL assessments were performed over a 6-month period on 415 patients with AD. A questionnaire derived from the Infants' Dermatitis Quality of Life Index (IDQOL), the Children's Dermatology Life Quality Index (CDLQI) and the Dermatology Life Quality Index (DLQI) was used to determine the QOL for 71 infants, 197 children and 147 adults, respectively. To measure AD severity, both the Rajka & Langeland scoring system and the Scoring of Atopic Dermatitis (SCORAD) index were used. The mean scores were as follows: 7.7 +/- 5.5 for IDQOL, 6.6 +/- 6.3 for CDLQI, and 10.7 +/- 7.9 for DLQI. In conclusion, these QOL scores are correlated with AD severity scores as estimated by the Rajka & Langeland severity score and the SCORAD. The outcome of the QOL instruments in this study demonstrates that atopic dermatitis of both children and adults affects their QOL.

Therapeutic effects of recombinant Salmonella typhimurium harboring CCL22 miRNA on atopic dermatitis-like skin in mice

Th-2-biased immune responses are known to play a key role in the pathogenesis of atopic dermatitis. In particular, the macrophage-derived chemokine CCL22 is directly implicated in Th-2-associated skin inflammatory reactions, and its levels are significantly elevated in serum and are correlated with disease severity in atopic dermatitis. In this study, we tested the development of genetic therapeutic options to treat atopic dermatitis using bacteria expressing miRNA. We constructed a recombinant strain of Salmonella typhimurium expressing CCL22 miRNA (ST-miRCCL22) for the in vivo knockdown of CCL22. The CCL22 gene was downregulated with CCL22 miRNA in activated lymphocytes. In mice with a cutaneous disease similar to atopic dermatitis, interleukin-4 was inhibited and interferon-gamma was induced after treatments with ST-miRCCL22. Furthermore, CCL22 levels were suppressed in the atopic mice treated with ST-miRCCL22. These results suggest that ST-miRCCL22 may be an effective genetic agent for treating atopic dermatitis.

Dermatite atópica em pediatria: atualização / Atopic dermatitis in pediatrics: a review

O trabalho discorre sobre a importância da dermatite atópica (DA) em Pediatria, descrevendo as formas de apresentação clínica, critérios diagnósticos, fisiopatologia, alterações na imunidade inata e nas respostas imunes adaptativas, papel das citocinas, inter-relações entre infecções e DA e os recursos terapêuticos, compreendendo hidratação da pele, controle da inflamação e do prurido, identificação e afastamento dos fatores desencadeantes e formas alternativas de tratamento.

Barreira cutânea na dermatite atópica / Skin barrier in atopic dermatitis

O estudo da barreira cutânea e de suas propriedades ganhou impulso a partir da década de 60, com estudos que apontaram sua resistência de forma isolada e suas propriedades com relação à permeação cutânea. Paralelamente, a descrição dos corpos de Odland auxiliou a compreensão da manutenção da estabilidade da camada córnea. O modelo brick & mortar, em que os corneócitos são os tijolos e o cimento são os lipídeos intercelulares, é o mais aceito, até o momento. Atualmente, há evidências consistentes de que o estrato córneo é uma estrutura metabolicamente ativa e exerce funções adaptativas. A barreira cutânea também tem um papel na resposta inflamatória, com ativação de melanócitos, angiogênese e fibroplasia, cuja intensidade depende, basicamente, da intensidade da agressão. As anormalidades da barreira cutânea da dermatite atópica são clinicamente observáveis pela presença de pele seca, achado muito frequente e significativo, que constitui parâmetro iagnóstico e de acompanhamento. O grau de hidratação da camada córnea, assim como a perda de água transepidérmica (transepidermal water loss - TEWL), estão relacionados com o grau de dano à barreira, constituindo parâmetros biofísicos que permitem acompanhar os pacientes de maneira não invasiva e com maior grau de sensibilidade.

Research about the skin barrier and its properties has increased significantly since the 60s, with studies that indicated its resistance when isolated, as well as its particularities in relation to skin permeability. At the same time, description of Odland bodies helped to understand how stratum corneum stability is maintained. The “brick and mortar” model is the most accepted so far. In this analogy, the corneocytes are the bricks and the intercellular lipids are the mortar. Currently, there is concrete evidence that the stratum corneum is an active metabolic structure that holds adaptive functions, interacting dynamically with the underlying epidermal layers. The skin barrier also plays a role in the inflammatory response through melanocyte activation, angiogenesis, and fibroplasia. The intensity of this response will essentially depend on the severity of the injury. Skin barrier abnormalities in atopic dermatitis are clinically observed by the presence of dry skin, a common and significant symptom which constitutes a diagnostic and monitoring parameter. The stratum corneum hydration level and transepidermal water loss are associated with the level of damage to the barrier, representing biophysical parameters. These parameters help doctors monitor patients in a less invasive and more sensitive manner.

Qualidade de vida e localização da lesão em pacientes dermatológicos / Quality of life and site of the lesion in dermatological patients

FUNDAMENTOS - O aspecto visível das lesões de pele e seu impacto psicológico interferem na qualidade de vida dos pacientes. OBJETIVOS - Avaliar qualidade de vida e localização da lesão dermatológica, verificar associação entre variáveis e comparar níveis de qualidade de vida em pacientes com lesões na face/ou mãos e pacientes somente com lesões em outras regiões do corpo que não face e/ou mãos. MÉTODO - Estudo transversal, descritivo, de ssociação. Foram avaliados 205 sujeitos através do Questionário Genérico de Qualidade de Vida- SF-36 "The Medical Outcomes Study 36-item Short-Form Health Survey" (SF-36) e do Dermatology Life quality Index, fichas de dados sócio-demográficos e de localização da lesão. RESULTADOS - Não foram observadas diferenças significativas na qualidade de vida entre os dois grupos, mas o número de associações entre SF-36 e DLQI-BRA foi superior no grupo com lesões em face e/ou mãos. Diferenças significativas foram verificadas quando da divisão em cinco grupos. A diferença significativa (p=0,05) foi entre o grupo com lesões somente em face e/ou mãos e o grupo com lesões generalizadas, sendo que este último teve posto médio de 114,06 contra 69,1935 do outro grupo. CONCLUSÕES - Independente da localização da lesão, o sentimento de exposição e os prejuízos a que fica sujeito o paciente dermatológico são semelhantes. As doenças da pele, ao que parece, provocam sentimento de exposição e constrangimento, independente do local do corpo acometido, pois na aproximação mais íntima de outra pessoa está implicada certa exposição.

BACKGROUND - The visible aspect of skin lesions and its psychological impact interfere in the quality of life of patients. OBJECTIVES- To assess the quality of life and site of dermatological lesion; to check associations between variables and compare levels of quality of life in patients with lesions on the face and/or hands and patients with lesions in parts of the body other than face and/or hands. METHODS - descriptive, association-based cross-sectional study. Two hundred and five subjects were assessed using SF-36 Generic Life Quality Questionnaire "The Medical Outcomes Study 36-item Short-Form Health Survey" (SF-36); the Dermatology Life Quality Index DLQI-BRA, and socio-demographical and lesion site data files. RESULTS - No significant differences were observed in the results for quality of life between the two groups but the number of associations between SF-36 and DLQI-BRA was higher in the group with lesions on the face and/or hands. Significant differences were verified in a further detailed division into five groups. The significant difference (p=0.05) appeared between the group with lesions on the face and/or hands and the group with generalized lesions, being that the latter presented an average ranking of 114.06 compared with 69.1935 in the former group. CONCLUSION - Regardless of the site of lesion, the feeling of exposure and the damages to which the dermatological patients are exposed are similar. It seems that skin diseases bring about the feeling of exposure and embarrassment no matter which site of the body is affected because in any intimate approach there is some sort of exposure involved.

Concepto de barrera cutánea / Concept of skin barrier

Los descubrimientos recientes acerca de la patogenia de la dermatitis atópica han conducido a hallazgos fundamentales de fallas en la barrera cutánea como ser defectos hereditarios en su constitución, que generan disminución de los mecanismos de defensa contra microbios y alergenos, seguidos por respuestas de linfocitos T helper 2 con inflamación crónica incluyendo mecanismos autoinmunes. Entre las fallas hereditarias se encuentra la identificación de mutaciones en el gen de la filagrina. Ésta es una proteína derivada del producto de degranulación de la capa granulosa que, una vez liberada, se une a los filamentos de queratina de la capa córnea formando la envoltura cutánea cornificada y finalmente es degradada en un pool de aminoácidos hidrofílicos que constituirán el factor de humectación natural de los queratinocitos.

The recent identification about atopic dermatitis pathogenesis has driven to important findings in the heritable epithelial barrier defect such as diminished defense mechanisms to allergens and microbes followed by lymphocyte T helper 2 response with chronic inflammation including autoinmune mechanisms. Among heritable defects is the identification of loss-of-mutations in the filaggrin gene, a protein generated during cornification from the granular cell layer that initially aggregates keratin-filaments into keratin fibrils forming the cornified cell envelope and subsequently degrades proteolitycally into a pool of hydrophilic amino acids that combined, form the natural moisturizing factor of keratinocytes.

Dermatite atópica em Pediatria / Atopic dermatitis in Pediatrics

A autora procede a uma revisão do tema Dermatite atópica em Pediatria, ressaltando sua importância e freqüência na prática de consultório, descrevendo o quadro clínico e o roteiro diagnóstico, a fisiopatologia da moléstia, as respostas imunes adaptativas, inter-relações entre infecção e dermatite atópica e, finalmente, a terapêutica, compreendendo identificação e afastamento dos fatores desencadeantes ou agravantes, hidratação da pele, controle da inflamação e do prurido e outras formas de tratamento, eventualmente indicadas. O trabalho se acompanha de extensa relação de referências bibliográficas.

Una puesta al día en dermatología pediátrica / Update in Pediatric Dermatology

Las dermatosis alérgicas son procesos inflamatorios, son patrones de respuestas que se expresan en la piel; se presentan en la población en general y más en la población pediátrica. Presentamos las dermatosis alérgicas más frecuentes de nuestra consulta diaria y que constituyen motivo del llamado "turismo médico".

Allergic dermatoses are inflammatory processes, conforming responsive patterns on the skin; they appear in the general population but especially in the pediatric age. The most frequent allergic dermatoses observed in our daily practice are presented. They are usually regarded as the causeof "medical tourism".

A dermatite atópica na criança: uma visão psicossomática / Atopic dermatitis in infants: a psychosomatic approach

A pele é a nossa fronteira com o mundo, fazendo trocas e contato com o meio ambiente. Sendo assim, não seria ela capaz de sinalizar, através de suas alterações, o nosso anseio pelo outro, a necessidade de "trocas afetivas"? Os autores apresentam a observação da evolução clínica e emocional de uma criança de 2 anos de idade, portadora de dermatite atópica, participante do Grupo de Apoio à Dermatite Atópica, com sua formação pioneira interdisciplinar, durante 9 meses de acompanhamento da criança no grupo. Como resultados, foram evidenciadas mudanças no comportamento da criança frente ao livre brincar, uma interação social mais concreta, com diminuição da irritabilidade e agressividade e, principalmente, maior e melhor vinculação entre a dupla mãe-criança, assim como marcada melhora do quadro dermatológico. Conclui-se que a abrangência, proporcionada pelo atendimento interdisciplinar, possibilita uma intervenção precoce na relação mãe-criança, podendo ser considerada como uma estratégia de prevenção em saúde mental materno-infantil, evitando possíveis patologias futuras.