Yun-Yun He

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OBJECTIVES This study examined the protective effect of salubrinal and the mechanism underlying this protection against tunicamycin (TM)- and hypoxia-induced apoptosis in rat cardiomyocytes. METHODS Neonatal rat cardiomyocytes were cultured from the ventricles of 1-day-old Wistar rats. Cells were exposed to different concentrations of salubrinal (10, 20,(More)
The serine/threonine protein phosphatase PP1 mediates the dephosphorylation of phosphorylated eukaryotic translation initiation factor 2 subunit α (p-eIF2α), which is a central regulator of protein synthesis. In the present study, we examined the protective effects of PP1-12 (an inhibitor of the serine/threonine protein phosphatase PP1) against tunicamycin(More)
The aim of the present study was to examine the role of eIF2α in cardiomyocyte apoptosis and evaluate the cardioprotective role of salubrinal in a rat myocardial infarction (MI) model. Rat left anterior descending coronary arteries were ligated and the classical proteins involved in the endoplasmic reticulum stress (ERS)-induced apoptotic pathway were(More)
Tunicamycin (TM) is an inducer of endoplasmic reticulum (ER) stress. However, which genes related to ER stress was induced in cardiomyocytes on a genome-wide scale remains poorly understood. Salubrinal and its derivatives are ER stress inhibitors. However, the cellular protection mechanisms remain unresolved. Neonatal rat cardiomyocytes were cultured from(More)
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