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In humans, such an injury leads to permanent scarring. Cardiac regeneration has been linked to metabolism and the oxygenation state, but so far, these factors remain to be detailed in the axolotl model. In this descriptive study, we have investigated metabolic changes that occurred during cardiac regeneration in the axolotl.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>We describe systemic and local cardiac metabolic changes after injury involving an early upregulation of glucose uptake and nucleotide biosynthesis followed by a later increase in acetate uptake. We detect several promising factors and metabolites for future studies and show that, unlike other popular animal models capable of intrinsic regeneration, the axolotl maintains its cardiac regenerative ability under hyperoxic conditions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Axolotls undergo dynamic metabolic changes during the process of heart regeneration and display a robust reparative response to cardiac cryo\u2010injury, which is unaffected by hyperoxia.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/dvdy.70020","type":"journal-article","created":{"date-parts":[[2025,3,23]],"date-time":"2025-03-23T12:59:44Z","timestamp":1742734784000},"page":"66-85","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Metabolic changes during cardiac regeneration in the 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