The Effect of Recombinant PTH(1–34) and PTH(1–84) on Serum Ionized Calcium, 1,25-Dihydroxyvitamin D, and Urinary Calcium Excretion: A Pilot Study

2009 ◽  
Vol 85 (4) ◽  
pp. 287-292 ◽  
Author(s):  
Sara Piemonte ◽  
Elisabetta Romagnoli ◽  
Cristiana Cipriani ◽  
Valeria Fassino ◽  
Romano Del Fiacco ◽  
...  
Keyword(s):  
Pilot Study ◽  
Urinary Calcium ◽  
Urinary Calcium Excretion ◽  
Ionized Calcium ◽  
Calcium Excretion ◽  
Dihydroxyvitamin D ◽  
1,25 Dihydroxyvitamin D ◽  
Serum Ionized Calcium

Decreased fractional urinary calcium excretion and serum 1,25-dihydroxyvitamin D and IGF-I levels in preeclampsia

2007 ◽  
Vol 103 (3-5) ◽  
pp. 803-806 ◽  
Author(s):  
Ali Halhali ◽  
Lorenza Díaz ◽  
Euclides Avila ◽  
Ana Carolina Ariza ◽  
Michèle Garabédian ◽  
...  
Keyword(s):  
Urinary Calcium ◽  
Urinary Calcium Excretion ◽  
Calcium Excretion ◽  
Dihydroxyvitamin D ◽  
1,25 Dihydroxyvitamin D ◽  
Igf I

Possible link between vitamin D and hyperoxaluria in patients with renal stone disease

1993 ◽  
Vol 84 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Sandro Giannini ◽  
Martino Nobile ◽  
Rocco Castrignano ◽  
Tecla Pati ◽  
Andrea Tasca ◽  
...  
Keyword(s):  
Vitamin D ◽  
Urinary Calcium ◽  
Calcium Excretion ◽  
Urinary Oxalate ◽  
Dihydroxyvitamin D ◽  
1,25 Dihydroxyvitamin D ◽  
Stone Formers ◽  
Group 2 ◽  
Urinary Oxalate Excretion ◽  
Group 1

1. Vitamin D seems to play an essential role in the pathogenesis of idiopathic hypercalciuria at least in part via intestinal hyperabsorption of calcium. Hyper-absorption of calcium, in turn, might enhance the intestinal uptake of free oxalate, thus leading to hyperoxaluria. To verify this hypothesis we studied 75 calcium-stone-formers subdivided as follows: group 1 (15 patients) with isolated hyperoxaluria; group 2 (25 patients) with hyperoxaluria and hypercalciuria; group 3 (22 patients) with isolated hypercalciuria; group 4 (12 patients) with no metabolic abnormalities. 2. As expected, urinary calcium excretion differed in the various groups (P < 0.001), being highest in groups 2 and 3; urinary oxalate excretion, by definition highest in groups 1 and 2, was even more pronounced in group 2 than in group 1 (P < 0.05). Although in the normal range, the serum 1,25-dihydroxyvitamin D concentration was higher (P < 0.001) in the two hypercalciuric groups (2 and 3), showing peak levels in group 2. 3. When the data from the 75 stone-formers were pooled, there was a positive correlation between the serum concentration of 1,25-dihydroxyvitamin D and urinary calcium excretion (P < 0.001) and urinary oxalate excretion (P < 0.003), the latter relationship also being present when only the two hypercalciuric groups (groups 2 and 3) were considered together (P < 0.05). 4. Our data seem to confirm a relevant role for the vitamin D system in the pathogenesis of calcium nephrolithiasis due to increased intestinal calcium absorption, but also because this in turn induces a greater intestinal absorption of oxalate, thus leading to the occurrence or exacerbation of hyperoxaluria.

Effects of excess protein, sodium and potassium on acute and chronic urinary calcium excretion in young women

1998 ◽  
Vol 18 (3) ◽  
pp. 475-487 ◽  
Author(s):  
Susan J Whiting ◽  
Timothy J Green ◽  
Evelyn P MacKenzie ◽  
Shawna J Weeks
Keyword(s):  
Young Women ◽  
Urinary Calcium ◽  
Urinary Calcium Excretion ◽  
Calcium Excretion ◽  
Sodium And Potassium
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