Analysis of bile acids in human biological samples by microcolumn separation techniques: A review

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Authors

DOSEDĚLOVÁ Věra ITTERHEIMOVÁ Petra KUBÁŇ Petr

Year of publication 2021
Type Article in Periodical
Magazine / Source Electrophoresis
MU Faculty or unit

Central European Institute of Technology

Citation
Web https://doi.org/10.1002/elps.202000139
Doi http://dx.doi.org/10.1002/elps.202000139
Keywords Bile acids; Clinical analysis; GC-MS; HPLC-MS; Microcolumn separation
Description Bile acids are a group of compounds essential for lipid digestion and absorption with a steroid skeleton and a carboxylate side chain usually conjugated to glycine or taurine. Bile acids are regulatory molecules for a number of metabolic processes and can be used as biomarkers of various disorders. Since the middle of the twentieth century, the detection of bile acids has evolved from simple qualitative analysis to accurate quantification in complicated mixtures. Advanced methods are required to characterize and quantify individual bile acids in these mixtures. This article overviews the literature from the last two decades (2000-2020) and focuses on bile acid analysis in various human biological samples. The methods for sample preparation, including the sample treatment of conventional (blood plasma, blood serum, and urine) and unconventional samples (bile, saliva, duodenal/gastric juice, feces, etc.) are shortly discussed. Eventually, the focus is on novel analytical approaches and methods for each particular biological sample, providing an overview of the microcolumn separation techniques, such as high-performance liquid chromatography, gas chromatography, and capillary electrophoresis, used in their analysis. This is followed by a discussion on selected clinical applications.
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