LILACS – Literatura Latinoamericana y del Caribe de Ciencias de la Salud

Kidney stones: composition, frequency and relation to metabolic diagnosis

Spivacow, Francisco R; Del Valle, Elisa E; Lores, Ernesto; Rey, Paula G.

Medicina (B.Aires); 76 (6), 2016

Nephrolithiasis is one of the most frequent urologic diseases. The aim of this paper is to study the composition and frequency of 8854 patient kidney stones and in a subset of them their metabolic risk factors to be related to their type of calculi. Physicochemical and crystallographic methods were used ...

Factores de Edad, Argentina/epidemiología, Calcio/metabolismo, Cristalografía por Rayos X/métodos, Riñón/metabolismo, Cálculos Renales/química, Cálculos Renales/epidemiología, Cálculos Renales/etiología, Cálculos Renales/metabolismo, Enfermedades Metabólicas/complicaciones, Enfermedades Metabólicas/epidemiología, Valores de Referencia, Medición de Riesgo, Factores de Riesgo, Factores Sexuales, Ácido Úrico/metabolismo

Fulltext

pH-sensitive polyvinylpyrrolidone-acrylic acid hydrogels: Impact of material parameters on swelling and drug release

In this study, we fabricated pH-sensitive polyvinylpyrrolidone/acrylic acid (PVP/AA) hydrogels by a free-radical polymerisation method with variation in the content of monomer, polymer and cross-linking agent. Swelling was performed in USP phosphate buffer solutions of pH 1.2, 5.5, 6.5 and 7.5 with const...