...Ph. Jaeger; W.G. Robertson The factors affecting the urinary excretion of oxalate are critical to the risk of forming calcium oxalate stones. This article reviews the role of dietary and intestinal oxalate in determining the level of oxalate excreted in urine. The amount of oxalate available...

...W.G. Robertson This review compares and contrasts three mathematical models used to describe the flow of urine through the renal tubule and the composition of tubular fluid throughout the length of the nephron. From these data the relative supersaturation of tubular fluid with respect to calcium...

...R.J. Unwin; G. Capasso; D.G. Shirley Urinary calcium, magnesium and citrate levels are important in promoting or inhibiting renal stone formation. Here we review current information on the tubular handling of these ions. Most filtered calcium is reabsorbed in the proximal tubule and the thick...

...Maria Rizzo; Salvatore Metafora; Francesco Morelli; Ferdinando Russo; Francesca Ciani; Giovambattista Capasso Background/Aims: Calbindin D28k has been reported to be involved in transcellular calcium transport along the rat distal convoluted tubule (DCT). It has also been shown that administration...

... for OPN in the regulation of calcium-mediated or calcium-dependent processes has been proposed. The aim of this study was to examine the effects of 1,25-dihydroxyvitamin D 3 (vitD), a hormone involved in the regulation of calcium homeostasis, on renal OPN expression. Four groups of rats were studied...