Table 2.

Effects of aging on PE-induced α-adrenergic receptor mediated responses in rat thoracic aorta

	pD2	Emax (F/CSA)
2–4 months	7.45 ± 0.07	31.02 ± 3.12
16–20 months	7.89 ± 0.08*	31.28 ± 2.71

Data are expressed as mean ±  SEM

*P < 0.01 (n = 4–6)