Summary of project PR000711

This data is available at the NIH Common Fund's National Metabolomics Data Repository (NMDR) website, the Metabolomics Workbench,, where it has been assigned Project ID PR000711. The data can be accessed directly via it's Project DOI: 10.21228/M8S383 This work is supported by NIH grant, U2C- DK119886.


Project ID: PR000711
Project DOI:doi: 10.21228/M8S383
Project Title:Multi-omics Approach Reveals Metabolic Changes in the Heart at Birth
Project Summary:During late gestation, the fetal heart primarily relies on glucose and lactate to support rapid growth and development. While numerous studies describe changes in heart metabolism a few weeks after birth to preferentially utilize fatty acids, little is known about metabolic changes of the heart within the first day following birth. Therefore, we used the ovine model of pregnancy to investigate metabolic differences between the near-term fetal and the newborn heart. Samples were collected for metabolomic, lipidomic, and transcriptomic approaches from the left and right ventricles and intraventricular septum in 7 fetuses at gestational day 142 and 7 newborn lambs on the day of birth. We observed greater abundance of metabolites involved in butanoate and propanoate metabolism, and glycolysis in the term fetal heart (FDR-corrected p<0.10) and differential expression in these pathways were confirmed with single-sample gene set enrichment analysis (ssGSEA) (FDR-corrected p<0.05). Immediately following birth, newborn hearts displayed enrichment in purine, fatty acid, and glycerophospholipid metabolic pathways, as well as oxidative phosphorylation with significant alterations in both lipids and metabolites to support transcriptomic findings. While other studies suggest a switch from carbohydrate metabolism to fatty acid metabolism in the neonatal heart in as early as 2 weeks following birth, our data show that this metabolic switch in the heart begins by the first day of postnatal life. A better understanding of metabolic alterations that occur in the heart following birth may improve treatment of neonates at risk for heart failure.
Institute:University of Florida
Last Name:Keller-Wood
First Name:Maureen
Address:1345 SW Archer Rd, PO 100487, Gainesville, FL, 32610

Summary of all studies in project PR000711

Study IDStudy TitleSpeciesInstituteAnalysis
(* : Contains Untargted data)
(* : Contains raw data)
ST001060 NMR Metabolomics of Near-Term Fetal and Newborn Sheep Cardiac Tissue (part-I) Ovis aries University of Florida NMR 2018-10-10 1 41 Uploaded data (25.3G)*
ST001061 Lipidomics of Near-Term Fetal and Newborn Sheep Cardiac Tissue (part-II) Ovis aries University of Florida MS 2018-10-10 1 14 Not available