Aim To detect the expression of CC chemokine receptor 2( CCR2) in collateral vessels induced by high fluid shear stress in rabbit hindlimb and its relationship with monocyte and macrophage. Methods Ten rabbits were operated on left femoral artery ligation,on the right side,the femoral artery was ligated unilaterally and its distal end was anastomosed with femoral vein. After 7 days,the animals were sacrificed. The expression of CCR2,MCP-1 and CD11 b was detected by corfocal immunofluorescence. Forelimb vess...