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- 저자 : Hua Yuting (검색결과 2 건)
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Honglin Xu,Haifeng Miao,Guanghong Chen,Guoyong Zhang,Yue Hua,Yuting Wu,Tong Xu,Changlei Hu,Mingjie Pang,Leyi Tan,Xin Han,Bin Liu,Yingchun Zhou 고려인삼학회 2023 Journal of Ginseng Research Vol.47 No.6
Background: Myocardial fibrosis post-myocardial infarction (MI) can induce maladaptive cardiacremodeling as well as heart failure. Although 20(S)-ginsenoside Rg3 (Rg3) has been applied to cardiovasculardiseases, its efficacy and specific molecular mechanism in myocardial fibrosis are largely unknown. Herein, we aimed to explore whether TGFBR1 signaling was involved in Rg3's anti-fibrotic effectpost-MI. Methods: Left anterior descending (LAD) coronary artery ligation-induced MI mice and TGF-b1-stimulated primary cardiac fibroblasts (CFs) were adopted. Echocardiography, hematoxlin-eosin andMasson staining, Western-blot and immunohistochemistry, CCK8 and Edu were used to study the effectsof Rg3 on myocardial fibrosis and TGFBR1 signaling. The combination mechanism of Rg3 and TGFBR1 wasexplored by surface plasmon resonance imaging (SPRi). Moreover, myocardial Tgfbr1-deficient mice andTGFBR1 adenovirus were adopted to confirm the pharmacological mechanism of Rg3. Results: In vivo experiments, Rg3 ameliorated myocardial fibrosis and hypertrophy and enhanced cardiacfunction. Rg3-TGFBR1 had the 1.78 10 7 M equilibrium dissociation constant based on SPRi analysis,and Rg3 inhibited the activation of TGFBR1/Smads signaling dose-dependently. Cardiac-specific Tgfbr1knockdown abolished Rg3's protection against myocardial fibrosis post-MI. In addition, Rg3 downregulatedthe TGF-b1-mediated CFs growth together with collagen production in vitro through TGFBR1signaling. Moreover, TGFBR1 adenovirus partially blocked the inhibitory effect of Rg3. Conclusion: Rg3 improves myocardial fibrosis and cardiac function through suppressing CFs proliferationalong with collagen deposition by inactivation of TGFBR1 pathway.
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Wu Hongbin,He Ye,Lin Xueshan,Bi Rui,Hua Yuting,Sun Ming,Xu Bin 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.2
With the increasing penetration of distributed photovoltaic in distribution network, it is more difficult to control active distribution network (ADN). A flexible interconnection device (FID) can realize regional interconnection of the ADN through transferring power. However, the influence of installation position and number of FIDs on the ADN varies, it is necessary to analyze its operational planning model. In this study, first, a photovoltaic power and load forecasting model is established, followed by reduction of the typical scenarios. Second, the ADN operational planning model is established according to the line load balance index to analyze the coordination and determine the power transfer value of the FID in different installation positions and numbers for the ADN. Third, the net income index of the distribution network in the entire life cycle is established to analyze the economy of the ADN and determine the optimal FID installation location and quantity. Finally, numerous simulations and comparisons are carried out on the actual example system, and the results show that the FID can effectively transfer the active power, strengthen the ADN power supply level, and solve the problem of power supply imbalance caused by distributed photovoltaic access.
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