Presence and role of trace elements in urinary calculi

B. Hannache , A. Boutefnouchet , Dominique Bazin (1) , Michel Daudon (2) , E. Foy (3, 4) , S. Rouziere (5) , A. Dandouh

1 LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris
2 CRISTAL - Centre de Recherches et d'Informations Scientifiques et Techniques Appliquées aux Lithiases
3 LAPA - UMR 3685 - Laboratoire Archéomatériaux et Prévision de l'Altération
4 IRAMAT - LMC - IRAMAT - Laboratoire Métallurgies et Cultures
5 LPS - Laboratoire de Physique des Solides

Aim. - To assess the possible nature and role of trace elements in the pathogenesis of urinary stones. Material and method. - A series of 76 calculi from the East-Algerian region has been investigated through Fourier transform infrared spectroscopy for chemical analysis and X-ray fluorescence for detecting trace elements. Results. - Among the detected trace elements, Zn, Sr, Pb, Cu, Rb and Se, only the first three had significant values. Overall, the calcium components, namely calcium oxalate and calcium phosphate, were the most loaded by these elements contrary to organic components such as uric acid and cystine, which had low contents. Conclusion. - The correlation of contents of Zn and Sr with the stone components (carbapatite, weddellite and whewellite) suggests an adsorption of these trace elements in the case of calcium stones rather than a catalytic process. (C) 2014 Elsevier Masson SAS. All rights reserved.

Mots clés: X-ray fluorescence; Urinary calculi; Trace elements

Domaines: Matériaux

B. Hannache, A. Boutefnouchet, Dominique Bazin, Michel Daudon, E. Foy, et al.. Presence and role of trace elements in urinary calculi. Progrès en Urologie, 2015, 25 (1), pp.22-26. ⟨10.1016/j.purol.2014.09.038⟩. ⟨hal-01275038⟩