[The implications of family lack of concern and perception of obesity in childhood in the city of Curitiba, State of Paraná, Brazil]. / Implicações da pouca preocupação e percepção familiar no sobrepeso infantil no município de Curitiba, PR, Brasil.

The scope of this study was to relate child obesity with the family's perception of the child's silhouette's and concern with excess weight in childhood A cross-sectional study was conducted among children aged between 20 and 48 months who frequent Health Units or are preschoolers in the city of Curitiba from June to December 2014. A questionnaire was used to collect data relating to family income, weight, height, perception of child silhouette's and assess concern about obesity by parents. Overweight and obesity was not correctly perceived by relations (kappa = 0,11) and the vast majority of parents did not know the child's height and weight and were not even concerned with childhood obesity. In the population studied, children from lower income family were more likely to suffer from overweight in childhood (p = 0,02). It is necessary to invest in the sensitization of families, since it is extremely important to pay attention to obesity from childhood onwards, thus preventing new cases and avoiding problems in adult life.

Implicações da pouca preocupação e percepção familiar no sobrepeso infantil no município de Curitiba, PR, Brasil / The implications of family lack of concern and perception of obesity in childhood in the city of Curitiba, State of Paraná, Brazil

Resumo O presente trabalho propôs relacionar o sobrepeso infantil com a percepção familiar da silhueta da criança e a preocupação com o excesso de peso na infância. Foi realizado um estudo transversal com crianças de 20 a 48 meses de idade usuárias de Unidades de Saúde ou centros de ensino infantil de Curitiba, no período de junho a dezembro de 2014. Fez-se uso de questionário para coletar dados referentes a renda familiar, peso, altura, percepção da silhueta da criança e verificar a preocupação com o excesso de peso. O sobrepeso e a obesidade não foram percebidos corretamente pelos responsáveis (kappa =0,11) e grande parte destes não sabiam o peso e altura da crianças e nem estavam preocupados com excesso de peso. Na população estudada, as crianças de famílias de menor renda apresentaram mais chance de desenvolver sobrepeso na infância (p = 0,02). Se faz necessário investir na sensibilização das famílias, pois é de extrema importância a atenção à obesidade desde a infância prevenindo assim novos casos e evitando agravos na vida adulta.

Abstract The scope of this study was to relate child obesity with the family’s perception of the child’s silhouette’s and concern with excess weight in childhood A cross-sectional study was conducted among children aged between 20 and 48 months who frequent Health Units or are preschoolers in the city of Curitiba from June to December 2014. A questionnaire was used to collect data relating to family income, weight, height, perception of child silhouette’s and assess concern about obesity by parents. Overweight and obesity was not correctly perceived by relations (kappa = 0,11) and the vast majority of parents did not know the child’s height and weight and were not even concerned with childhood obesity. In the population studied, children from lower income family were more likely to suffer from overweight in childhood (p = 0,02). It is necessary to invest in the sensitization of families, since it is extremely important to pay attention to obesity from childhood onwards, thus preventing new cases and avoiding problems in adult life.

In vitro photodynamic inactivation of conidia of the phytopathogenic fungus Colletotrichum graminicola with cationic porphyrins.

Photodynamic inactivation (PDI) is an efficient approach for the elimination of a series of microorganisms; however, PDI involving phytopathogenic filamentous fungi is scarce in the literature. In the present study, we have demonstrated the photoinactivating properties of five cationic meso-(1-methyl-4-pyridinio)porphyrins on conidia of the phytopathogen Colletotrichum graminicola. For this purpose, photophysical properties (photostability and (1)O2 singlet production) of the porphyrins under study were first evaluated. PDI assays were then performed with a fluence of 30, 60, 90 and 120 J cm(-2) and varying the porphyrin concentration from 1 to 25 µmol L(-1). Considering the lowest concentration that enabled the best photoinactivation, with the respective lowest effective irradiation time, the meso-(1-methyl-4-pyridinio)porphyrins herein studied could be ranked as follows: triple-charged 4 (1 µmol L(-1) with a fluence of 30 J cm(-2)) > double-charged-trans2 (1 µmol L(-1) with 60 J cm(-2)) > tetra-charged 5 (15 µmol L(-1) with 90 J cm(-2)) > mono-charged 1 (25 µmol L(-1) with 120 J cm(-2)). Double-charged-cis-porphyrin 3 inactivated C. graminicola conidia in the absence of light. Evaluation of the porphyrin binding to the conidia and fluorescence microscopic analysis were also performed, which were in agreement with the PDI results. In conclusion, the cationic porphyrins herein studied were considered efficient photosensitizers to inactivate C. graminicola conidia. The amount and position of positive charges are related to the compounds' amphiphilicity and therefore to their photodynamic activity.

Investigation of anti-inflammatory and anti-proliferative activities promoted by photoactivated cationic porphyrin.

BACKGROUND: Photodynamic therapy (PDT) is a technique that uses light and a photosensitizer, converting local molecular oxygen into singlet oxygen, which eliminates a target unhealthy tissue. It has been increasingly used for the treatment of several diseases including skin disorders. Psoriasis is a chronic inflammatory skin disease expressing immune and hyperproliferative features. OBJECTIVE: This study aimed to evaluate the effect of the photosensitizer 5,10-diphenyl-15,20-di(N-methylpyridinium-4-yl)porphyrin (Di-cis-Py+) in in vivo models whereby some psoriasis-like parameters could be investigated. METHODS: The antiinflammation and antiproliferative activities of Di-cis-Py+ photoactivated was measured by myeloperoxidase (MPO) and N-acetyl-ß-d-glucosaminidase (NAG) enzyme activity assay, measurement of IL-6, IL-1ß and TNF-α levels, evaluation of proliferating cell nuclear antigen (PCNA) levels by immunohistochemistry and by Western blot. RESULTS: Treatment involving PDT and Di-cis-Py+ resulted in reduction of edema, cellular infiltration, proinflammatory cytokines, as well as reduced hyperproliferation of the epidermis. All the evaluated parameters were promoted by topical application of phlogistic agents and are similar to that observed in lesions of psoriatic skin. CONCLUSION: The results shows the advantage of topical application, do not cause apparently photosensitivity and have effects comparable to dexamethasone, a first-line drug for the treatment of the disease.