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  • Title: [Effects of total flavones of Elsholtzia splendens in isolated ischemia/reperfusion rat hearts].
    Author: Zhao L, Li Z, Qian LB, Ye ZG, Zhang GL, Xia Q, Wang HP.
    Journal: Zhongguo Ying Yong Sheng Li Xue Za Zhi; 2014 Mar; 30(2):161-5. PubMed ID: 25016872.
    Abstract:
    OBJECTIVE: To investigate the influence of total flavonoids of Elsholtzia splendens (TFES) on isolated ischemia/reperfusion rat hearts and its underlying mechanisms. METHODS: Hearts isolated from male SD rats were perfused on the Langendorff apparatus and subjected to global ischemia for 30 min followed by 120 min of reperfusion. The cardiac infarct size was measured by TTC staining. Hemodynamic parameters and the level of lactate dehydrogenase (LDH) in the coronary effluent were measured. Absorbance at 520 nm was determined in isolated cardiac mitochondria exposed to 200 micromol/L CaCl2 to detect the opening of the mitochondrial permeability transition pore. RESULTS: Pretreatment with TFES (1, 10, 100 microg/ml) for 5 min decreased infarct size and LDH release and improved the recovery of the left ventricular developed pressure. In mitochondria, the decrease of absorbance at 520 nm evoked by CaCl2 was greatly inhibited by TFES. CONCLUSION: TFES prevents myocardial ischemia/reperfusion injury, and this cardioprotective effect is probably via inhibiting mitochondrial permeability transition pore opening.
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