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  • Title: Shen'ge powder decreases the cardiomyocyte hypertrophy in chronic heart failure by activating the Rho protein/Rho-associated coiledcoil forming protein kinase signaling pathway.
    Author: Yan X, Jiao K, Song X.
    Journal: J Cell Biochem; 2019 Mar; 120(3):3038-3045. PubMed ID: 30474257.
    Abstract:
    OBJECTIVE: The current study aimed to explore the role and the molecular mechanism of Shen'ge powder in cardiomyocyte hypertrophy in chronic heart failure (CHF). METHODS: Sprague-Dawley rats were selected for the study and divided randomly into four groups: control, model, Shen'ge powder, and fasudil group. An inverted microscope was used to determine the diameter of cardiomyocytes in each group. The survival and apoptotic rate of cardiomyocytes in each group was determined by the tetrazolium dye MTT 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and flow cytometry, respectively. The messenger RNA levels and protein expression of RhoA, Rho-associated coiled-coil forming protein kinase (ROCK), myosin light-chain phosphatase (MLCP), and myosin light-chain kinase (MLCK) were determined by quantitative reverse transcription-polymerase chain reaction and Western blot analysis, respectively. RESULTS: CHF increased the diameter and apoptotic rate of cardiomyocytes and decreased the survival rate of cardiomyocytes. The levels of RhoA, ROCK, and MLCK were increased significantly in CHF model rats, and the level of MLCP was decreased. After treating with Shen'ge powder, the expression of RhoA, ROCK, and MLCK decreased dramatically and the expression of MLCP increased. CONCLUSION: Shen'ge powder could reduce cardiomyocyte hypertrophy in CHF by regulating the Rho/ROCK signaling pathway.
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