Published March 23, 2021 | Version v1
Dataset Open

Changes to the sebum lipidome upon COVID-19 infection observed via rapid sampling from the skin

Description

Description

This dataset of participant, field blank and quality control liquid-chromatography-mass spectrometry .raw files supports the following article:

Changes to the sebum lipidome upon COVID-19 infection observed via rapid sampling from the skin - EClinicalMedicine (thelancet.com)

Background

The COVID-19 pandemic has led to an unprecedented demand for testing - for diagnosis and prognosis - as well as for investigation into the impact of the disease on the host metabolism. Sebum sampling has the potential to support both needs by looking at what the virus does to us, rather than looking for the virus itself.

Methods and attached dataset description

In this pilot study, sebum samples were collected from 67 hospitalised patients (30 COVID-19 positive and 37 COVID-19 negative) by gauze swab. Lipidomics analysis was carried out using liquid chromatography mass spectrometry, identifying 998 reproducible features. Univariate and multivariate statistical analyses were applied to the resulting feature set. The dataset uploaded here represents .raw liquid chromatography-mass spectrometry files for participants (triplicate injections), field blanks and pooled quality control standards, as well as the output peak:area matrix.

Findings

Lipid levels were depressed in COVID-19 positive participants, indicative of dyslipidemia; p-values of 0·022 and 0·015 were obtained for triglycerides and ceramides respectively, with effect sizes of 0·44 and 0·57. Partial Least Squares-Discriminant Analysis showed separation of COVID-19 positive and negative participants with sensitivity of 57% and specificity of 68%, improving to 79% and 83% respectively when controlled for confounding comorbidities.

Interpretation

COVID-19 dysregulates many areas of metabolism; in this work we show that the skin lipidome can be added to the list. Given that samples can be provided quickly and painlessly, we conclude that sebum is worthy of future consideration for clinical sampling.

Notes

This upload represents the underlying mass spectrometry .RAW files and processed peak:area matrix used in the preparation of the journal article found at: https://www.thelancet.com/journals/eclinm/article/PIIS2589-5370(21)00066-3/fulltext Funding was provided for sample collection by the EPSRC Impact Acceleration Account, as well as EPSRC Fellowship Funding EP/R031118/1. Mass Spectrometry was funded under EP/P001440/1. Sample collection and processing was funded by the University of Surrey and the BBSRC BB/T002212/1. The funding bodies were neither involved in the design of the study nor in the analysis of the data.

Files

Files (41.3 GB)

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Additional details

Funding

UK Research and Innovation
Ion Beam Analysis for the 2020's and Beyond: An Integration of Elemental Mapping and 'omics' EP/R031118/1