Aorta histochemistry of the different groups of female rabbits (Black Sudan B staining). (a) NPC, (b) PC, (c) NPMet, and (d) PMet. M: media, A: adventitia; In: intima; (a, b, c, d) are ×40 magnification; (e, f, g) are ×100 magnification of (c). (a) Control aorta. (b) Arrow shows blood cell agglutination. (c) The box indicates the area which is enlarged to (e, f, g). (d) Arrow shows endothelial elevation. (e) Lipid infiltration (arrow ) under intima and endothelial cell hypertrophy (dashed arrow) with important lipid load between blades. (f) Reorientation of media SMCs to the intimal direction (dashed arrow) and presence of amorphous material with diffuse appearance (X). (g) Intima thickness (arrow) with lipid load and collagen disorganization with elastic blades in tornado appearance (∗∗).