Figure 3. α1-AR stimulation increased deoxyglucose uptake in either neonatal (A) or adult (B) myocytes.
Cells were seeded at 60–80% confluence, incubated overnight, then switch to serum free medium for 2–4 hr. Cells were treated with or without (untreated, UT) phenylephrine (PE, 100 μM) for 16hr and either prazosin (Praz, 1 μM) or the glucose transporter inhibitor II (GTI, 1μM). [3H]-2-deoxyglucose (2DG) was added to each well (0.5 μCi/well) and incubated for 10 minutes. The cells were washed, lysed and transferred to a scintillation vial where 3H-2DG uptake was detected using Beckman scintillation counter. *Statistically significant p≤0.05 from untreated control. #Statistically significant p≤0.05 from phenylephrine stimulation. N = 5 independent experiments performed in triplicate.

