Does inorganic phosphorus reduce hypercalciuria during total parenteral nutrition by enhancing renal tubular calcium absorption?
These results demonstrate that increasing the inorganic phosphorus content of the TPN formula decreases urinary calcium excretion by increasing renal tubular calcium resorption. This effect is not due to alterations in the PTH-1,25-dihydroxyvitamin D axis, but likely reflects a direct action of inorganic phosphorus on the renal tubules.
The present study suggests that aging does not increase flanker interference, nor does it alter perceptually based flanker interference.