1. School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039, China 2. Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China 3. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, China
Abstract：The patient bile and its centrifugate were studied by FTIR spectra, UV-Vis spectra, particle size analysis, and zeta potential determination. The result showed that the patient bile was in a heterogenetic and unstable state, and some of the ultramicrons in the patient bile assembled to form precipitate after centrifugalized at different speeds. According to FTIR and UV-Vis spectra, the authors found that the composition of the precipitates was mainly cholesterol, bilirubin, calcium bilirubinate, protein, phospholipid and so on, which was much close to that of the core of patient gallstone. The change in the properties of cholesterol/phospholipid vesicles, and the production of the undissolvable calcium salt in the patient bile had crucial influence on the stability of the patient bile, which played important roles in the core-formation and initial growth of gallstone that were induced by the matrixes such as proteins, phospholipids etc.
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