HAN Li-hua1, WANG Zhen-tao1, SUO Hong-liang2, et al. Effect of Yiqi Huoxue Formula on Angiogenesis and Expression of IGF-1 in Ischemic Myocardium of Rats after Myocardial Infarction[J]. Journal of Traditional Chinese Medicine2007, (3): 262-264.
HAN Li-hua1, WANG Zhen-tao1, SUO Hong-liang2, et al. Effect of Yiqi Huoxue Formula on Angiogenesis and Expression of IGF-1 in Ischemic Myocardium of Rats after Myocardial Infarction[J]. Journal of Traditional Chinese Medicine2007, (3): 262-264.DOI: 10.13288/j.11-2166/r.2007.03.040.
Objective To study the molecular mechanism and effect of Yiqi Huoxue Formula(YHF) on angiogenesis in ischemic myocardium of rats after myocardial infarction.Methods Myocardial infarction model rats were divided into large dose YHF group
small dose YHF group
Shexiang Baoxin Pill group
sham operation group and model group.Rats were executed and myocardium was taken after 6 weeks’ intragastric administration.Microvessel counting(MVC)
microvessel density (MVD) and insulin-like growth factor 1 (IGF-1) were detected by immunohistochemical method.Results In comparison with sham operation group
MVC
MVD and IGF-1 increased significantly in model group (P<0.05).MVC and MVD in large dose YHF group increased significantly compared with other groups(P<0.05) except small dose YHF group.There was significant difference in MVC between small dose YHF group and model group(P<0.05).The expression of IGF-1 in both large and small dose YHF groups were higher than that in model group(P<0.05).Conclusion Large dose of YHF can enhance angiogenesis and protect myocardium in ischemic myocardium of rats after myocardial infarction
which may be relevant to its up-regulating the expression of IGF-1.