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Cell Mol Gastroenterol Hepatol

December 2023

Division of Gastroenterology & Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address:

Background & Aims: Altered plasma acylcarnitine levels are well-known biomarkers for a variety of mitochondrial fatty acid oxidation disorders and can be used as an alternative energy source for the intestinal epithelium when short-chain fatty acids are low. These membrane-permeable fatty acid intermediates are excreted into the gut lumen via bile and are increased in the feces of patients with inflammatory bowel disease (IBD).

Methods: Herein, based on studies in human subjects, animal models, and bacterial cultures, we show a strong positive correlation between fecal carnitine and acylcarnitines and the abundance of Enterobacteriaceae in IBD where they can be consumed by bacteria both in vitro and in vivo.

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Controlling neuronal assemblies: a fundamental function of respiration-related brain oscillations in neuronal networks.

Pflugers Arch

January 2023

Institute for Physiology I, Medical Faculty, Albert-Ludwigs-University Freiburg, Hermann-Herder-Strasse 7, 79104, Freiburg, Germany.

Respiration exerts profound influence on cognition, which is presumed to rely on the generation of local respiration-coherent brain oscillations and the entrainment of cortical neurons. Here, we propose an addition to that view by emphasizing the role of respiration in pacing cortical assemblies (i.e.

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