Effect of epinephrine on glucose metabolism in humans: contribution of the liver.
Level 5 - mechanism / opinion, no new human data
Narrative review and mechanism-based reasoning describing human metabolic physiology without primary study design details in abstract
PubMed 6380304 · doi:10.1152/ajpendo.1984.247.2.E157
What was done
The abstract outlines physiological mechanisms governing epinephrine-mediated glucose regulation in humans across postabsorptive and fed states, as well as under conditions of elevated glucagon, elevated cortisol, and diabetes. Specific experimental designs, sample sizes, participant characteristics, and measurement techniques are not reported in the abstract.
What was found
No numerical values or statistical estimates are reported in the abstract. Epinephrine induced an immediate rise in blood glucose mediated by an initial increase in hepatic glucose production via transient glycogenolysis, alongside persistent stimulation of gluconeogenesis and prolonged inhibition of insulin-dependent peripheral glucose disposal. Concomitant elevations of cortisol and glucagon, or the presence of diabetes, transformed the hepatic glucose production response from transient to sustained, amplifying hyperglycemia. During glucose feeding, mild epinephrine elevations caused marked glucose intolerance by inhibiting splanchnic and peripheral glucose uptake and preventing the suppression of hepatic glucose production.
Why it matters
The findings synthesize the hepatic and extrahepatic pathways through which epinephrine drives stress-induced hyperglycemia and clarify why individuals with diabetes experience exaggerated metabolic disruption under stress.
Limits
The abstract is entirely descriptive and reports no sample sizes, demographic parameters, control groups, effect sizes, or statistical metrics. Primary experimental protocols cannot be evaluated from the abstract alone.
Cited by
- supports The acute stress response raises cortisol and adrenaline levels, which suppresses digestion and increases blood glucose levels.