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Table 1.

Characteristics of ApoE /− Fbn1C1039G/+ mouse fed a western-type diet supplemented with 50 mg α-tocopherol or 500 mg α-tocopherol per kg diet. Data presented as mean ± s.e.m.

50 mg/kg diet 500 mg/kg diet
General (n = 26–31)
 Body weight (g) 22 ± 1 21 ± 1
 Spleen weight (mg) 210 ± 17 275 ± 24a
 Lung weight (mg) 241 ± 7 253 ± 10
 Kidney weight (mg) 163 ± 4 172 ± 7
Circulating leukocyte subsets  (n = 11–17)
 T cells (%) 22 ± 2 24 ± 4
 B cells (%) 51 ± 3 49 ± 5
 Ly6low monocytes (%) 10 ± 1 10 ± 2
 Ly6high monocytes (%) 7.8 ± 0.6 7.0 ± 0.5
 Neutrophils (%) 12 ± 1 15 ± 3
Plaque analysis in RCCA (n = 10–16)
 Plaque formation index (%) 55 ± 7 21 ± 5c
 Plaque thickness (µm) 686 ± 54 381 ± 47c
 Necrotic core area (%) 4.0 ± 1.0 1.1 ± 0.5a
 Macrophages (%) 18 ± 4 26 ± 5
 Vascular SMCs (%) 4 ± 1 5 ± 1
 Total collagen (%) 23 ± 3 25 ± 3
 ICAM-1-positive ECs (%) 81 ± 4 94 ± 4b
 VCAM-1-positive ECs (%) 44 ± 7 58 ± 10
 Cleaved caspase 3 (%) 0.10 ± 0.03 0.03 ± 0.01a

Independent samples t-test.

aP < 0.05, bP < 0.01, cP < 0.001 vs 50 mg/kg diet.

RCCA, right common carotid artery; SMCs, smooth muscle cells.