Bioengineering, Volume 11, Issue 8
2024 August - 119 articles
Cover Story: The administration of oxygen microbubbles (OMBs) has been shown to increase oxygen and decrease carbon dioxide in systemic circulation. However, their impact on microenvironmental oxygenation remains unexplored. Herein, we investigated the effects of intraperitoneal administration of OMBs in anesthetized rats exposed to hypoxic ventilation. Blood oxygenation and hemodynamics were evaluated over a 2 h time frame. Tissue samples were collected for hypoxic and metabolic analyses. Data show that OMBs improved blood SaO2 and alleviated tissue hypoxia. Metabolomic analysis revealed OMBs induced metabolic differences in all organs analyzed, with the greatest effects on the spleen and lung. In summary, intraperitoneal OMBs improve systemic blood and local tissue oxygenation, thereby shifting metabolomic profiles. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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