Table 1.

Carbachol-induced relaxation of thoracic aorta

	Protocol 1		Protocol 2
	CBH response	After apocynin	CBH response	After SOD
Control (C57Bl/6)	84 ± 5	87 ± 6	82 ± 3	83 ± 5
apoE−/− × TGFβ1	61 ± 6†	76 ± 3*	59 ± 4†	69 ± 5*
apoE−/−	75 ± 5	82 ± 4	73 ± 4	77 ± 5
TGFβ1	81 ± 6	87 ± 4	75 ± 4	80 ± 4

Values are means ± SE (n = 10/group) of carbachol (CBH) responses before and after apocynin (protocol 1) and before and after superoxide dismutase (SOD; protocol 2) in control (C57Bl/6) mice, apolipoprotein-deficient (apoE^−/−) mice bearing transforming growth factor-β₁ transgene (apoE^−/− × TGFβ₁), apoE^−/− mice, and TGFβ₁ mice.

^*P < 0.05 vs. control (C57Bl/6).

^†P < 0.05, before vs. after incubation.