Reverse Apolipoprotein A-I Mimetic Peptide R-D4F Inhibits Neointimal Formation following Carotid Artery Ligation in Mice
2013
The ApoA-I mimetic peptide D-4F has demonstrated potent atheroprotective actions in vivo and in vitro . We investigated the effect of R-D4F (ie, the D-4F peptide with reverse order of amino acids) on intimal hyperplasia after vascular injury in a mouse model of carotid artery ligation. Adult male C57BL/6J mice were pretreated intraperitoneally with vehicle, D-4F (1 mg/kg), or R-D4F (1 mg/kg or 5 mg/kg) daily for 3 days; the mice were then subjected to left carotid artery ligation. All treatments were continued for 28 days after surgery. Neither D-4F nor R-D4F treatment affected serum lipid levels. Morphometric analysis showed that the occluded vessels had significant neointimal formation, compared with the uninjured arteries in vehicle-treated mice. Like the D-4F treatment, R-D4F treatment significantly ( P
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