Combination of micropreparative solution isoelectric focusing and high-performance liquid chromatography for differentiation of biofilm-positive and biofilm-negative Candida parapsilosis group from vascular catheter

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Authors

VYKYDALOVÁ Marie HORKÁ Marie RŮŽIČKA Filip DUŠA Filip MORAVCOVÁ Dana KAHLE Vladislav ŠLAIS Karel

Year of publication 2014
Type Article in Periodical
Magazine / Source Analytica Chimica Acta
MU Faculty or unit

Faculty of Medicine

Citation
Web Full Text
Doi http://dx.doi.org/10.1016/j.aca.2013.12.032
Field Biochemistry
Keywords Candida parapsilosis group; biofilm; micropreparative solution isoelectric focusing; high-performance liquid chromatography; capillary isoelectric focusing; sonicate from vascular catheter
Description This study utilizes the high-performance liquid chromatography technique in combination with the new micropreparative solution isoelectric focusing fractionation on non-woven fabric strip for the characterization and differentiation of biofilm-positive and biofilm-negative forms of Candida parapsilosis sensu stricto on the basis of the changes in the composition of their cell-surface. Treatment of yeasts by boiling in distilled water relased surface substances from yeasts cells. Consequently, the optimized procedure has been used for fast identification of the highly pathogenic biofilm-positive Candida parapsilosis group in real clinical material – sonicate from vascular catheters. Moreover, the capillary isoelectric focusing was used as supporting and control technique. Obtained results suggest that this new method can be used to distinguish between biofilm-positive and negative forms of Candida parapsilosis sensu stricto.
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