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L Poniatowski

Publications and source records attributed to L Poniatowski.

8 recordsLinked to original sources

The intestinal phosphate transport under condition of experimental hypercalcemia.

The analysis of the serum calcium and phosphate level changes in intact Vitamin D--dosed animals showed the increasing serum calcium values without any concomitant change in serum phosphate concentration. The observed discrepancy of intestinal phosphate transport in vitro and in vivo studies together with the effect of Vitamin D towards normalizing serum phosphate level in TPTX Vitamin D--dosed animals suggest the presence of Vitamin D as some phosphate regulatory factor. The participation of the possible role of 25 OH D3 in the observed phenomenon is under current investigations. In PTH supressed hypercalcemic conditions we did not reproduce, with the usage of 1alpha--OH D3, the regulatory effect of 1,25 (OH) 2D3 described by Garabedian et al. /1/.

Animals↗

The intestinal calcium and phosphate transport under conditions of experimental hypercalcemia.

The intestinal calcium and phosphate transport under conditions of experimental hypercalcemia. Acta Physiol. Pol., 1977, 28 (2): 127--134. Intestinal calcium and phosphate transport was examined in various segments of small intestine under two differently processed hypercalcemic conditions. The analysis of the serum calcium and phosphate level changes, showed the increasing serum calcium values without any concomitant change in the serum phosphate concentration during the course of the experiment. The observed discrepancy of the intestinal phosphate transport when compared the in vitro and in vivo studies, suggests the presence of phosphate transport regulatory mechanism acting on the intestinal level.

Animals↗