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Large Scale Non-targeted Metabolomic Profiling of Serum by Ultra Performance Liquid Chromatography-Mass Spectrometry UPLC-MS
Published on: March 14, 2013
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TidyMass2: advancing LC-MS untargeted metabolomics through metabolite origin inference and metabolic feature-based
Xiao Wang1,2, Yijiang Liu1,3, Chao Jiang4
1Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore.
Nature Communications
|January 16, 2026
Summary
TidyMass2 enhances untargeted metabolomics by tracing metabolite origins and analyzing unannotated features, significantly improving biological interpretation. This computational framework makes complex analyses accessible, advancing metabolic phenotyping research.
Area of Science:
- Metabolomics
- Computational Biology
- Biochemistry
Background:
- Untargeted metabolomics offers insights into biochemical processes but struggles with identifying metabolite origins and interpreting unannotated features.
- Existing computational tools often lack comprehensive capabilities for tracing metabolite sources and extracting biological meaning from complex datasets.
Purpose of the Study:
- To introduce TidyMass2, an advanced computational framework designed to overcome limitations in untargeted metabolomics, specifically in metabolite origin inference and functional interpretation of unannotated features.
- To enhance the accessibility of advanced metabolomics analyses through a user-friendly graphical interface.
Main Methods:
- TidyMass2 integrates 11 metabolite databases (532,488 metabolites) for comprehensive metabolite origin inference (human, microbial, dietary, pharmaceutical, environmental).
- A novel metabolic feature-based functional module analysis leverages metabolic network topology to interpret unannotated features, bypassing the annotation bottleneck.
- A graphical user interface (GUI) is provided to facilitate advanced analyses for researchers lacking programming expertise.
Main Results:
- Application to longitudinal human pregnancy urine metabolomics data revealed diverse metabolite origins (human, microbiome, environmental).
- TidyMass2 identified 27 dysregulated metabolic modules, significantly increasing the proportion of interpretable metabolic features from 5.8% to 58.8%.
- Coordinated changes were uncovered in steroid hormone biosynthesis, carbohydrate metabolism, and amino acid processing pathways.
Conclusions:
- TidyMass2 significantly expands biological interpretation in untargeted metabolomics beyond annotated features, enabling more comprehensive metabolic phenotyping.
- The framework upholds open-source principles, promoting reproducibility, traceability, and transparency in metabolomics research.
- TidyMass2 empowers researchers to gain deeper biological insights from complex metabolomics data, regardless of their computational expertise.

