Responses of rat carotid arteries to balloon injury, and the effects of extract of GLY on balloon injury. (A). The left panel represents the low-power (100×) observations from a balloon-injured vessel, a balloon-injured vessel treated with GLY at 0.5 g/ml,and uninjruied vessel (sham control). And the right panel represents the high-power (200×). (L, lumen; N, neointima; M, medium.). (B). The control group shows a significantly higher neointima to media ratio as compared with the groups treated with extract of GLY at 0.5 g/mL. Values are means of two separate experiments, with standard errors represented by vertical bars. Mean value was significantly different from that of the control group:* p < 0.05.