Evidence mapPaperPMID 41244768Full record

ArticleFrontiers in medicine2025

Targeted metabolomic profiling reveals inflammation-associated longitudinal changes in plasma metabolites following on-pump coronary bypass surgery.

Frieder Neu, Max Wacker, Sven Schuchardt, Sam Varghese, George Awad, Fakhar H Waqas, Jens Wippermann, Frank Pessler, Priya Veluswamy

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Article in Frontiers in medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Frieder Neu *Research Group Biomarkers for Infectious Diseases, TWINCORE Centre for Experimental and Clinical Infection Research, a Joint Venture Between Hannover Medical School and the Helmholtz Centre for Infection Research, Braunschweig, Germany.
Max Wacker *Department of Cardiothoracic Surgery, Heart Surgery Research, Otto-von-Guericke University Hospital, Magdeburg, Germany.
Sven SchuchardtDepartment of Bio and Environmental Analytics, Fraunhofer Institute for Toxicology and Environmental Medicine, Hannover, Germany.
Sam VargheseDepartment of Cardiothoracic Surgery, Heart Surgery Research, Otto-von-Guericke University Hospital, Magdeburg, Germany.
George AwadDepartment of Cardiothoracic Surgery, Heart Surgery Research, Otto-von-Guericke University Hospital, Magdeburg, Germany.
Fakhar H WaqasResearch Group Biomarkers for Infectious Diseases, TWINCORE Centre for Experimental and Clinical Infection Research, a Joint Venture Between Hannover Medical School and the Helmholtz Centre for Infection Research, Braunschweig, Germany.
Jens WippermannDepartment of Cardiothoracic Surgery, Heart Surgery Research, Otto-von-Guericke University Hospital, Magdeburg, Germany.
Frank Pessler *Research Group Biomarkers for Infectious Diseases, TWINCORE Centre for Experimental and Clinical Infection Research, a Joint Venture Between Hannover Medical School and the Helmholtz Centre for Infection Research, Braunschweig, Germany.
Priya Veluswamy *Department of Cardiothoracic Surgery, Heart Surgery Research, Otto-von-Guericke University Hospital, Magdeburg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims: Cardiac surgery leads to major post-operative changes in metabolism, but their exact nature and the underlying risk factors remains obscure. We aimed to characterize changes in plasma metabolites after coronary artery bypass grafting (CABG) to identify intra- and post-operative risk factors for global and specific alterations in plasma metabolites post-operatively. Methods: We performed a targeted metabolomic screen on plasma samples from patients undergoing on-pump CABG for coronary artery disease (CAD), collected 1 day before and 1, 3, and 7 days after surgery. We assessed correlations with parameters of intra-operative course (cardiopulmonary bypass time and aortic cross-clamping time), intensive care unit (ICU) care, (length of ICU stay, duration of mechanical ventilation, duration of epinephrine/dobutamine or norepinephrine therapy), and systemic inflammation. Results: Out of 1,019 detectable analytes, 970 passed the quality screen and were included in the analysis. With respect to d0, the greatest degree of change in metabolite populations occurred by d1, but substantial changes persisted through d7. Metabolites could be classified into those which were predominantly downregulated (e.g., triglycerides, bile acids, cholesterol esters, lysophosphatidylcholines, indoles and derivatives), up- or downregulated (e.g., phosphatidylinositol, phosphatidylethanolamines, phosphatidic acids, ceramides), or upregulated (free fatty acids, monoglycerides). Concentrations of food- and/or microbiota-derived metabolites (indole derivatives, trimethylamine N-oxide, trigonelline) were markedly reduced, particularly on d1 and d3. Changes in metabolite concentrations correlated most strongly with plasma C-reactive protein concentration ( Conclusions: These results reveal pronounced changes in plasma metabolite populations after CABG, which likely result from the combined effects of surgical and post-operative stress, systemic inflammation, reduced dietary intake, and possibly changes in gut microflora.

Indexed as

bile acidsbiomarkerscoronary artery bypass graftcoronary artery diseasefree fatty acidsmetabolomicsphosphatidylcholineplasma metabolites

Identifiers

PMID41244768
PMCPMC12611753

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