Table 1. Changes of ratio of collagen area and type I/III collagen in the infarct border zone in rats with AMI of each group.

Groups	n	Collagen area in infarction area (Masson 100 ×)	Type I/III collagen (Sirius Red 100 ×)
MI+XGM	13	47.88 ± 6.23	2.25 ± 0.26
MI+XGH	12	25.72 ± 4.18##	4.87 ± 0.31
MI+C	12	28.61 ± 10.38##	0.61 ± 0.39##
MI+C+XGM	13	30.01 ± 8.34#	4.81 ± 0.24
Sham	14	8.42 ± 9.70	0.85 ± 0.25
MI	11	44.54 ± 10.91*	1.63 ± 0.16*

Data are presented as mean ± SD. *P < 0.05 compared with the Sham group; ^#P < 0.05 and ^##P < 0.01 compared with the MI group. AMI: acute myocardial infarction; MI+C: carvedilol group; MI+C+XGM: medium-dose of XG + carvedilol group; MI+XGH: high-dose of XG group; MI+XGM: medium-dose of XG group; XG: Xinfuli granule group.