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JSIR Vol.66(08) [August 2007] >


Title: Mineralogical composition of urinary calculi from southern India
Authors: Girija, E K
Kalkura, S Narayana
Sivaraman, P B
Yokogawa, Y
Keywords: Calcium oxalate
Hydroxyapatite
Urinary calculi
Urolithiasis
Issue Date: Aug-2007
Publisher: CSIR
Abstract: Incidence of urinary calculi and its composition have been showing a remarkable global variation with profound changes in living standards and dietary habits. Indian urinary stone composition is usually different from that of the western countries. Urinary calculi in northern India were composed of pure calcium oxalate monohydrate (COM) and pure calcium oxalate dihydrate (COD) and in Bihar were of mixed type. Urinary calculi from southern India was analyzed by X-Ray Diffraction (XRD), Fourier Transform Infrared (FT-IR) spectroscopy, FT-Raman, Thermo Gravimetric Analyses (TGA) and Scanning Electron Microscopy (SEM). Majority of the stones were pure or calcium phosphate mixed calcium oxalate stones. Uric acid calculi and infection stone were less. SEM observation had shown regularly arranged platy COD crystals, orderly arranged spherulitic hydroxyapatite (HAP) crystals in nucleus and COD bipyramidal crystals radiating from a central point. A comprehensive clinical data of the patients is also provided.
Page(s): 632-639
ISSN: 0022-4456
Source:JSIR Vol.66(08) [August 2007]

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