YU Zixuan,ZHANG Shumeng,ZHANG Mengxue,et al.Effects of Yangxin Tongmai Formula (养心通脉方) on Myocardial Energy Metabolism in Myocardial Infarction Model Rats with Blood Stasis Syndrome[J].Journal of Traditional Chinese Medicine,2023,64(12):1255-1262.
YU Zixuan,ZHANG Shumeng,ZHANG Mengxue,et al.Effects of Yangxin Tongmai Formula (养心通脉方) on Myocardial Energy Metabolism in Myocardial Infarction Model Rats with Blood Stasis Syndrome[J].Journal of Traditional Chinese Medicine,2023,64(12):1255-1262.DOI: 10.13288/j.11-2166/r.2023.12.012.
Effects of Yangxin Tongmai Formula (养心通脉方) on Myocardial Energy Metabolism in Myocardial Infarction Model Rats with Blood Stasis Syndrome
(养心通脉方, YXTM) in the treatment of myocardial infarction (MI) with blood stasis syndrome (BSS).
Methods
2
A total of 50 rats were selected, and 38 of them were randomly selected and fed with high fat diet, using intragastric administration of vitamin D3 plus intraperitoneal injection of isoproterenol to establish the MI rat model with BSS. Twenty-four out of the 28 successfully modeled rats were randomly divided into model group, YXTM group and atorvastatin calcium group, with eight rats in each group. Eight healthy rats were selected as blank group. The YXTM group and atorvastatin calcium group were given 12 g/(kg·d) of YXTM and 1.8 mg/(kg·d) of atorvastatin calcium tablets by gavage, respectively, while the blank group and the model group were administered with 4 ml/(kg·d) of distilled water by gavage. Each group was treated once a day for 14 consecutive days. The pathological changes of coronary arteries were observed by hematoxylin and eosin (HE) staining. The number and morphology of mitochondria in myocardial tissues were observed by transmission electron microscopy. The levels of adenosine triphosphate (ATP) in myocardial tissue, serum nitric oxide (NO) and C1q tumor necrosis factor-related protein 3 (CTRP3) were detected by ELISA kit. The expression of CTRP3 protein in myocardial tissue was determined by Western blot.
Results
2
Compared to the blank group, the model group showed intimal thickening, endothelial damage, inflammatory infiltration and other changes; the number of myocardial mitochondria in the model group decreased, and the membrane structure became shallower, and even ruptured, with decreased ATP in myocardial tissue, serum NO level, CTRP3 protein expression in myocardial tissue, and serum CTRP3 level (
P
<0.05). Compared to those in the model group, the coronary endothelial injury was significantly improved in the YXTM group and atorvastatin calcium group, and the arrangement of sarcomeres in myocardial tissue was regular, with increased number of myocardial mitochondria, complete structure of myocardial mitochondria, and increased content of ATP in myocardial tissue, serum NO level, CTRP3 protein expression in myocardial tissue, and serum CTRP3 level (
P
<0.05). Compared to those in the YXTM group, the coronary artery endothelial injury and mitochondrial membrane structure damage were more severe in the atorvastatin calcium group, and the ATP level and CTRP3 protein expression level in myocardial tissue and serum level of CTRP3 significantly increased (
P
<0.05).
Conclusion
2
YXTM can significantly improve myocardial mitochondrial energy metabolism and resist endothelial injury in rats with MI and BSS, and its mechanism may be related to the increase of adipokines CTRP3 content.
关键词
Keywords
references
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