Abstract
Cholesterol constitutes the major component of most gallstones. It was identified and determined, in gallstones, issued from eleven patients, by thermal analysis: differential scanning calorimetry (DSC), with the use of the melting temperature and enthalpy, thermogravimetry (TG), with the mass loss of water. Anhydrous cholesterol (ChA) was characterized by two endothermic peaks (polymorphic, melting) and cholesterol monohydrate (ChH) by two endothermic peaks (dehydration, melting), too. Cha needle and Chh plate crystals were observed under polarizing light microscopy. The numerous stones obtained from nine patients were cholesterol stones: the ChA was higher 45 and lower 96%. ChH was present in stones of three patients.
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Kaloustian, J., Pauli, AM., Lechene de la Porte, P. et al. Thermal analysis of anhydrous and hydrated Cholesterol. Journal of Thermal Analysis and Calorimetry 71, 341–351 (2003). https://doi.org/10.1023/A:1022818902212
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DOI: https://doi.org/10.1023/A:1022818902212