Table 3: Structural parameters obtained from histological analyses.

Carotid arteryAscending aortaDescending aorta
MV ± SDMV ± SDMV ± SD

Smooth muscle (%)49.69 ± 3.5639.34 ± 4.62a46.43 ± 4.05b
Elastin (%)34.46 ± 2.5057.84 ± 3.52a47.52 ± 8.76ab
Collagen (%)15.82 ± 1.633.16 ± 2.17a5.61 ± 5.10ab
Elastic tissues (%)50.28 ± 3.5261.00 ± 5.19a53.13 ± 4.72b
Smooth muscle (abs) (102 mm2)537.03 ± 38.432891.67 ± 339.87a2452.20 ± 213.83a
Elastin (abs) (102 mm2)372.38 ± 27.004252.04 ± 258.92a2509.79 ± 462.79ab
Collagen (abs) (102 mm2)171.00 ± 17.64232.19 ± 59.53296.27 ± 69.33a

Relative (%) and absolute (abs) values of the arterial wall constituents evaluated through histological techniques. Elastic tissue values are the sum of the elastin and collagen amounts.
a with respect to carotid artery.
b with respect to ascending aorta.