Metabolic fingerprinting of Schistosoma mansoni infection in mice urine with capillary electrophoresis

Electrophoresis. 2008 Aug;29(15):3201-6. doi: 10.1002/elps.200800031.

Abstract

Schistosoma mansoni infection in mice has been fingerprinted using CE to study the capabilities of this technique as a diagnostic tool for this parasitic disease. Two modes of separation were used in generating the electrophoretic data, with each untreated urine sample the following methods were applied: (i) a fused-silica capillary, operating with an applied potential of 18 kV, in micellar EKC (MEKC) and (ii) a polyacrylamide-coated capillary, operating with an applied potential of -20 kV under zonal CZE conditions. By combining normal and reverse polarities in the data treatment we have extracted more information from the samples, which is a better approach for CE metabolomics. The traditional problems associated with variability in electrophoretic peak migration times for analytes were countered by using a dynamic programming algorithm for the electropherograms alignment. Principal component analyses of these aligned electropherograms and partial least square discriminant analysis (PLS-DA) data are shown to provide a valuable means of rapid and sample classification. This approach may become an important tool for the identification of biomarkers, diagnosis and disease surveillance.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylic Resins
  • Animals
  • Biomarkers
  • Electrophoresis, Capillary / methods*
  • Female
  • Least-Squares Analysis
  • Metabolomics*
  • Mice
  • Micelles
  • Pilot Projects
  • Principal Component Analysis
  • Schistosoma mansoni / isolation & purification*
  • Schistosoma mansoni / metabolism
  • Schistosomiasis mansoni / diagnosis*
  • Schistosomiasis mansoni / parasitology
  • Schistosomiasis mansoni / urine
  • Sensitivity and Specificity
  • Silicon Dioxide
  • Time Factors
  • Urinalysis / methods*

Substances

  • Acrylic Resins
  • Biomarkers
  • Micelles
  • Silicon Dioxide
  • polyacrylamide