Influence of exogenous porcine growth hormone on vitamin D metabolism and calcium and phosphorus absorption in intact pigs

1994 ◽  
Vol 54 (6) ◽  
pp. 489-492 ◽  
Author(s):  
I. Denis ◽  
M. Thomasset ◽  
A. Pointillart
Keyword(s):  
Growth Hormone ◽  
Vitamin D ◽  
Vitamin D Metabolism ◽  
Phosphorus Absorption ◽  
Calcium And Phosphorus

Effect of Bicarbonate Feeding on Intestinal Absorption of Calcium and Vitamin D Metabolism in Rats

1985 ◽  
Vol 68 (1) ◽  
pp. 97-100 ◽  
Author(s):  
U. Gafter ◽  
S. Edelstein ◽  
J. Levi
Keyword(s):  
Vitamin D ◽  
Plasma Level ◽  
Intestinal Absorption ◽  
Vitamin D Metabolites ◽  
Vitamin D Metabolism ◽  
Phosphorus Absorption ◽  
Calcium And Phosphorus

1. The effect of bicarbonate (NaHCO3) feeding on intestinal absorption of calcium and phosphorus and vitamin D metabolism was investigated. Gut sac uptake of 45Ca and [32P]phosphate in vitro, as well as the plasma level of vitamin D metabolites, was determined in rats fed with NaHCO3 for 9 days and their pair-fed controls. 2. Duodenal uptake of 45Ca and [32P]phosphate by alkalotic rats was less than duodenal uptake by controls. 1,25(OH)2D plasma level was much higher in alkalotic rats than in their controls, and 25(OH)D slightly higher than in controls. 3. These data suggest that NaHCO3 feeding causes a substantial increase in 1,25(OH)2D plasma level, but interferes with calcium and phosphorus absorption in the duodenum.

The Mechanism of the Action of Growth Hormone on Vitamin D Metabolism in the Rat*

Endocrinology ◽  
1981 ◽  
Vol 108 (3) ◽  
pp. 1064-1070 ◽  
Author(s):  
E. MARTIN SPENCER ◽  
OTTE TOBIASSEN
Keyword(s):  
Growth Hormone ◽  
Vitamin D ◽  
Vitamin D Metabolism

Effects of Dietary Calcium and Phosphorus on Vitamin D Metabolism and Calcium Absorption in Hamster

1996 ◽  
Vol 211 (3) ◽  
pp. 281-286 ◽  
Author(s):  
H. P. Schedl ◽  
T. Conway ◽  
R. L. Horst ◽  
D. L. Miller ◽  
C. K. Brown
Keyword(s):  
Vitamin D ◽  
Calcium Absorption ◽  
Dietary Calcium ◽  
Vitamin D Metabolism ◽  
Calcium And Phosphorus

scholarly journals Vitamin D, calcium and phosphorus status in children with short stature – effect of growth hormone therapy

2021 ◽  
Author(s):  
Maria Klatka ◽  
Małgorzata Partyka ◽  
Agnieszka Polak ◽  
Barbara Terpiłowska ◽  
Michał Terpiłowski ◽  
...  
Keyword(s):  
Growth Hormone ◽  
Vitamin D ◽  
Hormone Therapy ◽  
Short Stature ◽  
Growth Hormone Therapy ◽  
Phosphorus Status ◽  
Calcium And Phosphorus

Effect of metabolic acidosis in intestinal absorption of calcium and phosphorus

1980 ◽  
Vol 239 (6) ◽  
pp. G480-G484 ◽  
Author(s):  
U. Gafter ◽  
J. A. Kraut ◽  
D. B. Lee ◽  
V. Silis ◽  
M. W. Walling ◽  
...  
Keyword(s):  
Vitamin D ◽  
Metabolic Acidosis ◽  
Plasma Level ◽  
Intestinal Absorption ◽  
Metabolic Balance ◽  
Vitamin D Metabolism ◽  
Calcium And Phosphorus ◽  
Control Plasma ◽  
P Absorption

To investigate the effect of metabolic acidosis on intestinal calcium (Ca) and phosphorus (P) absorption and vitamin D metabolism, metabolic balance studies and in vitro gut sac uptake of 45Ca and [32P]phosphate were performed in rats maintained on low-Ca and moderately low-P diet and fed NH4Cl for 3 or 9 days and pair-fed controls. Plasma 1,25(OH)2D concentration was measured in the rats fed NH4Cl for 9 days and their controls. Net Ca and P absorption was 87–92% in the acidotic rats and did not differ from control. Moreover, gut sac uptakes of 45Ca and [32P]phosphate were not different from control. Plasma 1,25(OH)2D was higher in the ammonium chloride-fed rats than in controls (213 +/- 44 vs. 110 +/- 12 pg/ml), and serum P was lower in the acidotic animals (4.6 +/- 0.7 vs. 7.6 +/- 0.3 mg/dl). These data indicate that metabolic acidosis does not depress the augmented intestinal absorption of calcium and phosphorus noted during their dietary deprivation nor reduce the plasma level of 1,25(OH)2D.

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