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Vacuolar protein sorting 9 (VPS9)-ankyrin-repeat protein (Varp) has recently been identified as an effector molecule for two small GTPases-Rab32 and Rab38-in the transport of a melanogenic enzyme tyrosinase-related protein 1 (Tyrp1) to melanosomes in melanocytes. Although Varp contains a Rab21-guanine nucleotide exchange factor (GEF) domain (i.e., VPS9(More)
Glucagon-like peptide-1 (GLP-1) receptor agonists potentiate glucose-induced insulin secretion. In addition, they have been reported to increase pancreatic beta cell mass in diabetic rodents. However, the precise mode of action of GLP-1 receptor agonists still needs to be elucidated. Here we clarify the effects of the human GLP-1 analog liraglutide on beta(More)
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