Effects of anastomosis and rosiglitazone on intimal hyperplasia in rabbit carotid arteries. White columns represent control left, black columns represent anastomosed right carotid arteries. n represents number of the rabbits. Placebo group (n = 7), rosiglitazone group (n = 6). *p < 0.05 Wilcoxon signed ranks test (control left vs anastomosed right arteries) and ++p < 0.01 Mann Whitney U test (placebo vs rosiglitazone groups).