Abstract:Hyperglycemia in type 2 diabetes is due, in part, to elevated gluconeogenesis (GNG). This has been attributed, based largely on in vitro models, to increased mRNA transcription of supposed rate‐limiting enzymes PEPCK and G6Pase. However, in vivo metabolic substrate analysis in man and dog indicate that GNG flux to G6P varies minimally within the physiological range of insulin. We propose that GNG mRNA and protein expression would be decreased during hyperinsulinemic (2.0 mU/kg/min), euglycemic conditions in 24… Show more
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