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Open Access Gold möglich sobald Verlagsversion bei der ZB eingereicht worden ist.
Fructose and follistatin potentiate acute MASLD during complete hepatic insulin resistance.
Nat. Commun., DOI: 10.1038/s41467-025-66296-5 (2025)
Postprint
Forschungsdaten
DOI
PMC
MASLD (metabolic-associated steatotic liver disease) and MASH (steatohepatitis) are closely associated with hepatic IR (insulin resistance) and T2D. Regardless, insulin-stimulated hepatic lipogenesis is considered essential for MASLD development, as mouse models of complete hepatic IR become diabetic without MASLD when fed high-fat diets. Challenging this notion, we found that male LDKO mice lacking hepatic insulin receptor substrates acutely developed MASLD if fed a fructose-enriched "MASH diet" (GAN) or high-fructose diet. Fructose potentiated hepatic re-esterification of abundant circulating fatty acids in LDKO mice, evidenced by excess 13C incorporation into the glycerol backbone-but not fatty acid chains-of hepatic triacylglyceride after gavage with [U13C]fructose. Suppressing adipose lipolysis in LDKO mice by inactivating hepatic Fst (Follistatin) prevented acute MASLD, whereas over-expressing Fst in wild-type mouse liver accelerated GAN-promoted MASLD/MASH. Compatibly, higher serum FST levels among Tübingen Diabetes Family Study participants clustered with increased adipose IR and greater hepatic triacylglyceride accumulation.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
ISSN (print) / ISBN
2041-1723
e-ISSN
2041-1723
Zeitschrift
Nature Communications
Verlag
Nature Publishing Group
Verlagsort
London
Begutachtungsstatus
Peer reviewed