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Transcriptome and metabolome after porcine hemodynamic-directed CPR compared with standard CPR and sham controls
Journal article   Open access   Peer reviewed

Transcriptome and metabolome after porcine hemodynamic-directed CPR compared with standard CPR and sham controls

Kumaran Senthil, Marco M. Hefti, Larry N. Singh, Ryan W. Morgan, Constantine D. Mavroudis, Tiffany Ko, Hunter Gaudio, Vinay M. Nadkarni, Johannes Ehinger, Robert A. Berg, …
Resuscitation plus, Vol.10, p.100243
06/01/2022
DOI: 10.1016/j.resplu.2022.100243
PMCID: PMC9111986
PMID: 35592874
url
https://doi.org/10.1016/j.resplu.2022.100243View
Published (Version of record) Open Access

Abstract

Objective: The effect of cardiac arrest (CA) on cerebral transcriptomics and metabolomics is unknown. We previously demonstrated hemodynamic-directed CPR (HD-CPR) improves survival with favorable neurologic outcomes versus standard CPR (Std-CPR). We hypothesized HD-CPR would preserve the cerebral transcriptome and metabolome compared to Std-CPR. Design: Randomized pre-clinical animal trial. Setting: Large animal resuscitation laboratory at an academic children’s hospital. Subjects: Four-week-old female piglets (8–11 kg). Interventions: Pigs (1-month-old), three groups: 1) HD-CPR (compression depth to systolic BP 90 mmHg, vasopressors to coronary perfusion pressure 20 mmHg); 2) Std-CPR and 3) shams (no CPR). HD-CPR and Std-CPR underwent asphyxia, induced ventricular fibrillation, 10–20 min of CPR and post-resuscitation care. Primary outcomes at 24 h in cerebral cortex: 1) transcriptomic analysis (n = 4 per treatment arm, n = 8 sham) of 1727 genes using differential gene expression and 2) metabolomic analysis (n = 5 per group) of 27 metabolites using one-way ANOVA, post-hoc Tukey HSD. Measurements and main results: 65 genes were differentially expressed between HD-CPR and Std-CPR and 72 genes between Std-CPR and sham, but only five differed between HD-CPR and sham. Std-CPR increased the concentration of five AA compared to HD-CPR and sham, including the branched chain amino acids (BCAA), but zero metabolites differed between HD-CPR and sham. Conclusions: In cerebral cortex 24 h post CA, Std-CPR resulted in a different transcriptome and metabolome compared with either HD-CPR or sham. HD-CPR preserves the transcriptome and metabolome, and is neuroprotective. Global molecular analyses may be a novel method to assess efficacy of clinical interventions and identify therapeutic targets. Institutional protocol number: IAC 16-001023.
Cardiac arrest Cardiopulmonary resuscitation Metabolomics RNA sequence Transcriptome

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