AUTHOR= Frontiers Editorial Office TITLE=Retraction: Ghrelin alleviates intestinal dysfunction in sepsis through the KLF4/MMP2 regulatory axis by activating SIRT1 JOURNAL=Frontiers in Immunology VOLUME=15 YEAR=2024 URL=https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2024.1430764 DOI=10.3389/fimmu.2024.1430764 ISSN=1664-3224