Mineralogy, geochemistry, 13C and 16O isotopic characteristics of urinary stones in Iran, a case study of Lorestan Province.
Owing to the importance of urinary stones as one of the biominerals in the human body, it is necessary to investigate their chemical composition and mineralogy. In this matter, a mineralogical study using X-ray diffraction and scanning electron microscopy indicated that urinary stones in Lorestan Province were divided into 5 groups of calcium oxalate, urate, cysteine, phosphate and mixed stones (Whewellite, uric acid, phosphate). In this regard, the microscopic studies revealed that Whewellite was the most important mineral phase among various phases. In the following, the major and rare elements of each group were determined by inductively coupled plasma mass spectrometry (ICP-MS) and X-ray fluorescence analysis. The obtained results demonstrated that Ca was found the most abundant element in urinary stones. In the analysis results of the major oxides, compared to other major oxides, CaO had the highest frequency in urinary stones. The reason was due to the role of calcium in most of the basic functions in cell metabolism. The average values of isotope 13C and 16O in the studied urinary stones were obtained - 33.71 and - 20.57, respectively. Overall, the values of 13C isotope in urinary stones were lower than those in the similar stones and human hard tissues in other countries.
['Aghajari|Seadat|S|', 'Sabzalipour|Sima|S|', 'Nazarpour|Ahad|A|', 'Rozbahani|Maryam Mohamadi|MM|']
D006801:Humans D007492:Iran D008855:Microscopy, Electron, Scanning D014527:Uric Acid D014545:Urinary Calculi D014961:X-Ray Diffraction
Urinary stones Biomineral Calcium oxalate Carbon isotope Trace elements