Isotope enhanced approaches in metabolomics

Area of Science:

• Metabolomics
• Analytical Chemistry
• Biochemistry

Background:

• Metabolomics enables quantitative analysis of numerous metabolites from biological samples.
• Nuclear magnetic resonance (NMR) spectroscopy is a key technique in metabolomics due to its quantitative and reproducible nature.
• Isotope labeling enhances NMR's ability to detect low-concentration metabolites and trace metabolic pathways.

Purpose of the Study:

• To describe current developments in isotope labeling of metabolites.
• To highlight the potential applications of isotope labeling in metabolomics.
• To explore how these methods unravel biological complexity and cellular functions.

Main Methods:

• Utilizing isotope labeling with nuclei such as 2H, 13C, 15N, and 31P.
• Applying NMR spectroscopy in vivo and ex vivo to biological samples.
• Developing methods to increase sensitivity and selectivity in NMR spectra.

Main Results:

• Isotope labeling significantly improves the identification of low-concentration metabolites.
• Labeled metabolites aid in tracing crucial metabolic pathways.
• Enhanced sensitivity and selectivity open new avenues for biological research.

Conclusions:

• Isotope labeling is a critical development for advancing metabolomics.
• NMR spectroscopy with isotope labeling is vital for understanding cellular functions in health and disease.
• These techniques hold immense potential for early disease diagnosis and drug discovery.