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Table 1 EC50 and Emax values of concentration-response curves performed for phenylephrine (PE), acetylcholine (ACh) and sodium nitroprusside (SNP) on 11–13 weeks female (F), 40–42 weeks female (F) and 40–42 weeks male (M) apoE-/- mice.

From: Modest vasomotor dysfunction induced by low doses of C60 fullerenes in apolipoprotein E knockout mice with different degree of atherosclerosis

Dose of C60 fullerenes

EC50 (nM)

Emax (%)

 

11–13 weeks (F)

40–42 weeks (F)

40–42 weeks (M)

11–13 weeks (F)

40–42 weeks (F)

40–42 weeks (M)

Vasoconstriction (PE)

0.00 mg/kg

9.0 (7.6–10.8)

31.4 (23.6–41.7)¤

6.4 (5.5–7.3)¤

72.9 (70.4–75.4)

65.6 (61.2–69.9)¤

71.3 (69.8–72.7)

0.05 mg/kg

8.7 (6.8–11.1)

31.7 (25.2–39.8)

ND

72.4 (69.1–75.6)

71.1 (67.2–75.1)

ND

0.50 mg/kg

8.1 (6.6–10.0)

38.9 (33.7–44.9)

6.8 (5.3–8.7)

73.7 (70.9–76.4)

69.5 (67.0–72.0)

67.0 (64.3–69.8)*

Endothelium-dependent vasorelaxation (Ach)

0.00 mg/kg

44.3 (29.3–66.9)

32.7 (17.6–66.6)

161.6 (25.8–1022)

70.8 (65.0–76.5)

60.4 (53.2–67.6)

26.7 (13.0–40.4)¤

0.05 mg/kg

44.7 (27.4–72.8)

10.5 (4.7–23.4)

ND

58.7 (52.9–64.4)*

37.8 (32.6–43.0)*

ND

0.50 mg/kg

52.6 (38.6–71.8)

19.7 (6.9–56.1)

148.4 (7.7–2847)

60.0 (55.9–64.2)*

47.3 (38.6–56.0)

34.4 (4.9–41.9)

Endothelium-independent vasorelaxation (SNP)

0.00 mg/kg

10.1 (8.1–12.6)

19.9 (14.4–27.4)¤

22.9 (15.8–33.1)¤

93.2 (90.1–96.3)

82.3 (77.8–86.8)¤

70.3 (65.4–75.2)¤

0.05 mg/kg

15.7 (11.2–22.0)

13.6 (8.2–22.5)

ND

86.6 (81.9–91.2)

80.2 (73.7–86.7)

ND

0.50 mg/kg

16.5 (13.4–20.3)*

20.9 (16.3–26.8)

20.3 (10.6–39.2)

88.3 (85.1–91.6)

83.3 (79.6–87.0)

58.5 (52.2–66.8)

  1. The data are expressed as mean and 95% CI. The vasomotor function in the group of 0.05 mg/kg bodyweight was not determined (ND) in the male mice. * denotes statistically significant effects on EC50 or Emax as compared to the effect in the control group (P < 0.05, ANOVA with unequal variance between groups). ¤ denotes statistically significant differences in EC50 or Emax, observed for the aged control groups as compared with the young control group (P < 0.05, ANOVA with unequal variance between groups).