Article (Scientific journals)
Acute Changes in Serum Calcium and Parathyroid Hormone Circulating Levels Induced by the Oral Intake of Five Currently Available Calcium Salts in Healthy Male Volunteers
Deroisy, Rita; Zartarian, M.; Meurmans, L. et al.
1997In Clinical Rheumatology, 16 (3), p. 249-53
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Abstract :
[en] Several calcium supplements are currently available and many of them are marketed without proper comparison of the bioavailability of the actual preparations. The aim of the present trial was to evaluate and compare the acute changes in serum calcium (Ca) and parathyroid hormone (PTH) levels following the oral administration of a vehicle and of five calcium salts currently prescribed in Western Europe. No significant changes in serum Ca or PTH levels were observed after administration of the vehicle. All calcium salts induced significant increases in serum Ca and decreases in serum PTH compared to baseline values. Comparison of the six response curves revealed a significantly greater increase in serum Ca and a greater decrease in serum PTH after each of the calcium salts than observed after the vehicle. However, no statistically significant differences were observed between the different calcium salts for serum Ca increments. The decrease in serum PTH observed after administration of an ossein-hydroxyapatite complex was significantly less important than after the four other calcium salts, even if statistically different than after vehicle. When assessing the area under the curve (AUC) of PTH values, we observed that calcium carbonate and citrate induce a significantly greater decrease in serum PTH than the other calcium salts which are, however, statistically more active than the vehicle. Serum PTH is decreased under the lower limit of the normal range (10 pg/ml), between t60 and t120 for calcium carbonate and citrate and between t60 and t90 for calcium gluconolactate while the mean PTH values remain within the normal range throughout the study with calcium pidolate, the ossein-hydroxyapatite complex and the vehicle. In conclusion, all calcium preparations significantly increase serum calcium and decrease serum parathormone, compared to what is observed after oral intake of a vehicle. However, significant differences in suppression of parathormone are observed between the different calcium preparations and might be of importance for their clinical use.
Disciplines :
Rheumatology
Author, co-author :
Deroisy, Rita  ;  Centre Hospitalier Universitaire de Liège - CHU > Médecine de l'appareil locomoteur
Zartarian, M.
Meurmans, L.
Nelissenne, N.
Micheletti, M. C.
Albert, Adelin  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Informatique médicale et biostatistique
Reginster, Jean-Yves  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Epidémiologie et santé publique
Language :
English
Title :
Acute Changes in Serum Calcium and Parathyroid Hormone Circulating Levels Induced by the Oral Intake of Five Currently Available Calcium Salts in Healthy Male Volunteers
Publication date :
May 1997
Journal title :
Clinical Rheumatology
ISSN :
0770-3198
eISSN :
1434-9949
Publisher :
Springer, Germany
Volume :
16
Issue :
3
Pages :
249-53
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 May 2012

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