Importantly, several studies have reported GLP-1R expression on both hepatocytes (liver cells) and adipocytes (fat cells) (Zhang et al., 2025
The subsequent literature never converged on DSIP being a sleep-inducing agent in any conventional sense, and its own principal investigators repeatedly noted effects that had nothing to do with sleep: stress tolerance, pain, withdrawal syndromes, chronobiological regulation

AMPK activation can be used on downstream target proteins to improve processes such as liver lipid metabolism, OS, and inflammatory responses, thereby alleviating MASLD ( Schisandra , regulates lipogenesis and lipolysis by activating AMPK, LKB1, and Ca (2+) /calmodulin-dependent protein kinase II (CaMKII) in HepG2 cells, as well as inhibiting fetuin-A, thereby suppressing lipid accumulation ( Peroxisome proliferator-activated receptors (PPARs) are important nuclear receptors, playing crucial roles in regulating processes such as liver fat synthesis, cholesterol metabolism, FA oxidation, and inflammatory responses, making them therapeutic targets for MASLD ( SREBP-1c is another important transcription factor involved in lipid metabolism, crucial in the formation and development of MASLD ( S
Cha Y-S, Choi S-K, Suh H, Lee S-N, Cho D, Lim K
In the early phase, elevated GLP-1 secretion and receptor upregulation may act as signals of this metabolic shift, redirecting energy production toward glycolysis