Universidade de Pernambuco

About: Universidade de Pernambuco is a education organization based out in Recife, Brazil. It is known for research contribution in the topics: Population & Medicine. The organization has 6147 authors who have published 6948 publications receiving 73648 citations.

A socioenvironmental composite index as a tool for identifying urban areas at risk of lymphatic filariasis.

Abstract: Summary Objective To describe the spatial distribution of lymphatic filariasis and its relationship with the socioenvironmental risk indicator, thus identifying priority localities for interventions in endemic urban areas. Methods The study area was the municipality of Jaboatao dos Guararapes, State of Pernambuco, Brazil. The data sources were a parasitological survey and the 2000 demographic census. From these data, a socioenvironmental composite risk indicator was constructed using the 484 census tracts (CT) as the analysis units, based on the score-formation technique. Census tracts with higher indicator values presented higher risk of occurrences of filariasis. Results Six thousand five hundred and seven households were surveyed and 23 673 individuals were examined, among whom 323 cases of microfilaremia were identified. The mean prevalence rate for the municipality was 1.4%. The indicator showed that 73% (237/323) of the cases of microfilaremia were in high-risk areas (third and fourth quartiles) with worse socioenvironmental conditions (RR = 4.86, CI = 3.09–7.73, P < 0.05). Conclusions The socioenvironmental composite risk indicator demonstrated sensitivity, since it was able to identify the localities with greater occurrence of infection. Because it can stratify spaces by using official and available data, it constitutes an important tool for use in the worldwide program for eliminating lymphatic filariasis. Un indice composite socioenvironnemental comme un outil pour identifier les zones a risque de la filariose lymphatique Objectif: Decrire la distribution spatiale de la filariose lymphatique et sa relation avec l’indicateur de risque social et environnemental, en identifiant les aires prioritaires d’intervention dans les zones d’endemie urban. Methodes: L’aire d’etude a ete la ville de Jaboatao dos Guararapes, localisee dans l’etat de Pernambuco, Bresil. Les donnees ont comme source l’enquete parasitologique et des donnees des secteurs (SC) du Recensement Demographique de 2000. Avec ces donnees il a ete construit un indicateur de risque social et environnemental (IRS), dont l’unite d’analyse ont ete les 484 SC, base sur la technique de formation des scores. Les valeurs les plus elevees de l’IRS indiquent que le SC presente un plus grand risque d’occurence de la filariose. Resultats: 6.507 domiciles ont fait partie de l’etude, ayant 23.673 personnes examinees, ou 323 portaient des microfilaires dans le sang, avec taux moyen de prevalence dans la ville de 1,4%. L’IRS a identifie que 73% (237/323) des cas de microfilaremiques sont localises dans les SC de la zone a haut risque (3e et 4e quartile), avec la plus mauvaise condition sociale et environnementale, ayant un risque 4,86 fois plus grand d’avoir des cas de filariose que dans la zone a bas risque (IC = 3.09 - 7.73, p < 0,05). Conclusions: L’indicateur synthetique de risque pour la filariose IRS a montre une bonne sensibilite, parce qu’il a ete en mesure d’identifier geographiquement les lieux les plus importants d’occurence de l’endemie. Cet indicateur se configure comme un outil important pouvant etre utilise dans les programmes pour le controle de la filariose lymphatique, puisqu’il stratifie l’espace en travaillant avec des petites zones geographiques Un socio indice compuesto como una herramienta para identificar zonas de riesgo urbana de la filariasis linfatica Objetivo: describir la distribucion espacial de la filariosis linfatica y su relacion con el indicador de riesgo socioambiental, identificando locales prioritarios para intervencion en area urbana. Metodos: el area del estudio fue el municipio de Jaboatao dos Guararapes, estado de Pernambuco, Brasil. Las fuentes de las informaciones fueron la investigacion parasitologica y los datos por sectores censitarios (SC) del Censo Demografico 2000. Con esos datos fue construido un indicador de riesgo socioambiental, cuya unidad de analisis fueron los 484 SC, en base a la tecnica de formacion de scores. Los valores mas altos del indicador muestran que el SC presenta mayor riesgo de presencia de filariosis. Resultados: fueron investigados 6.507 domicilios y examinados 23.673 individuos, identificandose 323 casos de microfilaremiasis, con tasa promedio de presencia patologica de 1,4% para el municipio. El indicador identifico que el 73% (237/323) de los casos de microfilaremiasis se encuentra en el area de alto riesgo (3o y 4o cuartiles), peor condicion socioambiental, con un nivel de riesgo 4,86 veces mas alto de surgimiento de casos de filariosis en comparacion con el area de bajo riesgo (IC = 3,09 – 7,73, p < 0,05). Conclusiones: el indicador de riesgo socioambiental mostro sensibilidad, una vez que fue capaz de identificar los locales de mayor presencia de infeccion. Puesto que aquel estratifica el espacio y trabaja sobre pequenas areas, constituye un importante instrumento a ser utilizado en el programa global de eliminacion de la filariosis linfatica.

Effect of dentin pre-treatment with a casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) paste on dentin bond strength in tridimensional cavities.

Abstract: Objective. This study aimed to evaluate the push-out bond strength of dimethacrylate (Clearfil SE Bond/Filtek Z250; and Adper SE Plus/Filtek Z250) and silorane-based (Filtek P90 adhesive system/Filtek P90 composite resin) restorative systems following selective dentin pre-treatment with a CPP-ACP-containing paste (MI Paste). Materials and methods. Sixty bovine incisors were utilized. The buccal surface was wet-ground to obtain a flat dentin area. Standardized conical cavities were then prepared. Adhesive systems were applied according to manufacturers' directions and the composites were bulk-inserted into the cavity. The push-out bond strength test was performed at a universal testing machine (0.5 mm/min) until failure; failure modes were analyzed by scanning electron microscopy. Data were analyzed by two-way ANOVA and Tukey post-hoc test (p < 0.05). Results. For Clearfil SE Bond/Filtek Z250 and Filtek P90 adhesive system/Filtek P90 composite resin, the dentin pre-treatment did not influence bond...