Mingzhe HU, Xiangling LI, Tao YANG, et al. Effect of Danshen Decoction preconditioning on myocardial injury and cardiac function in rats with myocardial ischemia/reperfusion. [J]. Shanghai Journal of Traditional Chinese Medicine 55(6):61-66(2021)
DOI:
Mingzhe HU, Xiangling LI, Tao YANG, et al. Effect of Danshen Decoction preconditioning on myocardial injury and cardiac function in rats with myocardial ischemia/reperfusion. [J]. Shanghai Journal of Traditional Chinese Medicine 55(6):61-66(2021) DOI: 10.16305/j.1007-1334.2021.2101068.
Effect of Danshen Decoction preconditioning on myocardial injury and cardiac function in rats with myocardial ischemia/reperfusion
Objective,2,To observe the effect of Danshen Decoction (DSY) pretreatment on infarct size, cardiac function and inflammatory cytokines in serum in rats with myocardial ischemia/reperfusion injury (MI/RI).,Methods,2,Chemical components of DSY were analyzed by ultra-high performance liquid chromatography/ultra-resolution mass spectrometry. Thirty Wistar rats were randomly divided into five groups: sham operation group, ischemia/reperfusion (I/R) model group, DSY (low-dose, medium-dose and high-dose) pretreatment I/R groups, with 6 rats in each group. After 1 week of continuous gavage, the rat model of myocardial ischemia/reperfusion (I/R) was established by ligation of the anterior descending coronary artery for 30 min/reflow for 24h. TTC staining was used to observe the infarct size, which was measured by ImageJ software. Left ventricular ejection fraction (LVEF) and left ventricular fraction shortening (LVFS) were observed by Cardiac Color Ultrasound Doppler. The levels of interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in serum of each rat group were determined by ELISA.,Results,2,①The main chemical components of DSY were salvianolic acid B, tanshinone IIA, quercetin and quercitrin. ②Compared with the model group, the size of myocardial infarction was decreased in DSY (low-dose, medium-dose and high dose) preconditioning groups (,P,<,0.05). ③Compared with sham operation group, LVEF and LVFS in I/R model group were significantly decreased (,P,<,0.05,P,<,0.01). Compared with I/R model group, the LVEF and LVFS of rats in DSY (low-dose, medium-dose and high dose) preconditioning groups were improved (,P,<,0.05). ④Compared with the sham operation group, the levels of IL-6 and TNF-α in serum in I/R model group were increased (,P,<,0.01). Compared with I/R model group, the levels of IL-6 in serum in DSY (low-dose, medium-dose and high dose) pretreatment groups were decreased (,P,<,0.01). The levels of TNF-α in serum in DSY (low-dose and medium-dose) pretreatment groups were also decreased (,P,<,0.05). There was no significant difference of TNF-α expression between the high-dose group and the model group (,P,>,0.05).,Conclusion,2,DSY pretreatment has the effect of reducing infarct size, improving cardiac function of MI/RI rats, whose mechanism may be related to the reduction of the expression of inflammatory cytokines in serum of MI/RI rats.
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