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11 results on '"Hao, Qimeng"'

2. The Applicability of Fama-French Multifactoral Model in the Stock Investment of China’s New Energy Industry

Author

Li, Shanshen, Hao, Qimeng, Liu, Yaqian, Meng, Jiaqi, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Hirche, Sandra, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, Hung, Jason C., editor, Chang, Jia-Wei, editor, and Pei, Yan, editor

Published
2023
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9. The Protective Effects of Preconditioning With Dioscin on Myocardial Ischemia/Reperfusion-Induced Ventricular Arrhythmias by Increasing Connexin 43 Expression in Rats.

Author

Cheng, Jin, Sun, Chuang, Zhang, Jingyu, Zou, Qing, Hao, Qimeng, and Xue, Yugang

Subjects
MYOCARDIAL reperfusion, CONNEXIN 43, VENTRICULAR arrhythmia, ENZYME-linked immunosorbent assay, MYOCARDIAL infarction, HEART beat
Abstract

Myocardial ischemia-reperfusion (IR) injury is associated with high disability and mortality worldwide. This study was to explore the roles of dioscin in the myocardial IR rats and discover the related molecular mechanisms. Rats were divided into 5 groups: sham, IR, IR + 15 mg/kg dioscin, IR + 30 mg/kg dioscin, and IR + 60 mg/kg dioscin. Heart rate (HR), mean arterial blood pressure (MAP), and rate pressure product (RPP) were evaluated at 10 minutes before ischemia, immediately after ischemia, and at the beginning, middle, and end of reperfusion. Arrhythmia score and myocardial infarct size were examined in rats of all groups. The serum creatine kinase-muscle/brain (CKMB) and cardiac troponin I (cTnI) levels were analyzed via enzyme-linked immunosorbent assay. Protein amount of total connexin 43 (T-Cx43) and phosphorylated connexin 43 (P-Cx43) was evaluated by Western blot. Ischemia reperfusion significantly decreased HR, MAP, and RPP of rats compared to the sham group. However, dioscin significantly attenuated the above phenomena in a dose-dependent manner. Dioscin markedly inhibited IR-induced increase in arrhythmias score, infarct size, and serum CKMB and cTnI levels. In addition, dioscin strikingly induced IR-repressed expression of T-Cx43 and P-Cx43. Our results suggested that dioscin pretreatment exhibited protective effects against myocardial IR injury. Moreover, we found that dioscin attenuated myocardial IR-induced ventricular arrhythmias via upregulating Cx43 expression and activation. [ABSTRACT FROM AUTHOR]

Published
2019
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