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IPO: a tool for automated optimization of XCMS parameters

TLDR
The software package IPO (‘Isotopologue Parameter Optimization’) was successfully applied to data derived from liquid chromatography coupled to high resolution mass spectrometry from three studies with different sample types and different chromatographic methods and devices and the potential of IPO to increase the reliability of metabolomics data was shown.
Abstract
Background Untargeted metabolomics generates a huge amount of data. Software packages for automated data processing are crucial to successfully process these data. A variety of such software packages exist, but the outcome of data processing strongly depends on algorithm parameter settings. If they are not carefully chosen, suboptimal parameter settings can easily lead to biased results. Therefore, parameter settings also require optimization. Several parameter optimization approaches have already been proposed, but a software package for parameter optimization which is free of intricate experimental labeling steps, fast and widely applicable is still missing.

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Journal Article

The Design and Analysis of Experiments

TL;DR: This book by a teacher of statistics (as well as a consultant for "experimenters") is a comprehensive study of the philosophical background for the statistical design of experiment.
Journal ArticleDOI

MetaboAnalyst 5.0: narrowing the gap between raw spectra and functional insights.

TL;DR: The MetaboAnalyst 5.0 as mentioned in this paper is the latest version of the web-based platform for comprehensive metabolomics data analysis and interpretation, aiming to narrow the gap from raw data to functional insights for global metabolomics based on HRMS.
Journal ArticleDOI

Feature-based molecular networking in the GNPS analysis environment.

Louis-Félix Nothias, +87 more
- 24 Aug 2020 - 
TL;DR: Feature-based molecular networking (FBMN) as discussed by the authors is an analysis method in the Global Natural Products Social Molecular Networking (GNPS) infrastructure that builds on chromatographic feature detection and alignment tools.
Journal ArticleDOI

MetaboAnalystR 3.0: Toward an Optimized Workflow for Global Metabolomics.

TL;DR: This work introduces MetaboAnalystR 3.0, a significantly improved pipeline with three key new features: efficient parameter optimization for peak picking; automated batch effect correction; and more accurate pathway activity prediction that offers an efficient pipeline to support high-throughput global metabolomics in the open-source R environment.
Journal ArticleDOI

Using MetaboAnalyst 5.0 for LC–HRMS spectra processing, multi-omics integration and covariate adjustment of global metabolomics data

TL;DR: MetaboAnalyst 5.0 as discussed by the authors extends the previous 2011 Nature Protocol by providing stepwise instructions to optimize parameters for LC-HRMS spectra processing; obtain functional insights from peak list data; integrate metabolomics data with transcriptomics data or combine multiple metabolomics datasets; conduct exploratory statistical analysis with complex metadata.
References
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Journal Article

The Design and Analysis of Experiments

TL;DR: This book by a teacher of statistics (as well as a consultant for "experimenters") is a comprehensive study of the philosophical background for the statistical design of experiment.
Journal ArticleDOI

XCMS: processing mass spectrometry data for metabolite profiling using nonlinear peak alignment, matching, and identification.

TL;DR: An LC/MS-based data analysis approach, XCMS, which incorporates novel nonlinear retention time alignment, matched filtration, peak detection, and peak matching, and is demonstrated using data sets from a previously reported enzyme knockout study and a large-scale study of plasma samples.
Journal ArticleDOI

Some New Three Level Designs for the Study of Quantitative Variables

TL;DR: In this paper, a class of incomplete three level factorial designs useful for estimating the coefficients in a second degree graduating polynomial are described and the designs either meet, or approximately meet, the criterion of rotatability and for the most part can be orthogonally blocked.
Journal ArticleDOI

MZmine 2: Modular framework for processing, visualizing, and analyzing mass spectrometry-based molecular profile data

TL;DR: A new generation of a popular open-source data processing toolbox, MZmine 2 is introduced, suitable for processing large batches of data and has been applied to both targeted and non-targeted metabolomic analyses.
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