Hormonal
Exendin-4 (a GLP-1 receptor agonist) directly reduces hepatic triglyceride stores in human hepatocytes by activating PDK-1 and PKC-f signaling pathways, independent of insulin.
This research suggests that GLP-1 receptor agonists (like exendin-4) may help reduce fatty liver disease by directly acting on liver cells to lower fat storage, rather than just through insulin regulation. This mechanism is independent of insulin, making it potentially useful for patients with insulin resistance or type 2 diabetes who also suffer from non-alcoholic fatty liver disease (NAFLD).
exendin-4 has a direct effect on the reduction of hepatic steatosis in the absence of insulin... Treatment with exendin-4 quantitatively reduced triglyceride stores compared with control-treated cells.
Why this rating
High-quality mechanistic data (Western blots, siRNA knockdown, lipid assays) but limited to in vitro models (HepG2, Huh7, primary hepatocytes) without human clinical trials.
Source
Glucagon-Like Peptide-1 Receptor Is Present on Human Hepatocytes and Has A Direct Role in Decreasing Hepatic Steatosis in Vitro by Modulating Elements of the Insulin Signaling Pathway
Nitika Gupta et al. · Hepatology · 2010
DOI 10.1002/hep.23569
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