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Plasma and urine metabolic fingerprinting of type 1 diabetic children

Claudia Balderas1, Francisco Javier Rupérez, Elena Ibañez

  • 1Center for Metabolomics and Bioanalysis - CEMBIO, Facultad de Farmacia, Universidad CEU San Pablo, Madrid, Spain.

Electrophoresis
|July 17, 2013
PubMed

Insights

Metabolomics revealed subtle metabolic changes in children with type 1 diabetes, even with good glycemic control. Key differences were observed in lipid metabolism, gut microflora activity, and glycation end products.

Area of Science:

  • Metabolomics
  • Pediatric Endocrinology
  • Biochemistry

Background:

  • Type 1 diabetes mellitus (T1DM) is a common childhood chronic disorder characterized by insulin deficiency.
  • Maintaining metabolic control is crucial, yet long-term complications persist even with good glycemic management.
  • Metabolomics offers a promising approach for diagnosing, prognosing, and monitoring metabolic disorders.

Purpose of the Study:

  • To investigate plasma and urine metabolic alterations in children with T1DM undergoing insulin therapy and maintaining good glycemic control.
  • To identify subtle metabolic differences not apparent through standard biochemical markers.
  • To explore the utility of metabolomic profiling in understanding T1DM pathophysiology in pediatric patients.

Main Methods:

  • Utilized liquid chromatography-mass spectrometry (LC-MS) for plasma sample analysis.
  • Employed capillary electrophoresis-mass spectrometry (CE-MS) for urine sample analysis.
  • Compared metabolic profiles of T1DM children with healthy controls, focusing on lipid, gut microflora, and glycation-related metabolites.

Main Results:

  • Metabolomic analysis detected significant metabolic differences between diabetic children and controls, despite similar standard biochemical markers (except glucose and HbA1c).
  • Plasma alterations were primarily linked to lipid metabolism (fatty acid derivatives) and gut microflora activity (bile acids, p-cresol sulfate).
  • Urine analysis revealed changes in protein and amino acid metabolism, including elevated levels of advanced (carboxyethylarginine) and early (fructosamine) glycation end products in diabetic children.

Conclusions:

  • Metabolomics can identify subtle metabolic dysregulations in pediatric T1DM patients with good glycemic control.
  • Alterations in lipid metabolism and gut microbiome function are significant in T1DM.
  • Increased excretion of glycation end products in urine highlights ongoing metabolic stress and potential pathways for complications.

Keywords:
Capillary electrophoresis-mass spectrometryLiquid chromatography-mass spectrometryMetabolomicsType 1 diabetes mellitus

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