Research Article

Multiple Intravenous Injections of Valproic Acid-Induced Mesenchymal Stem Cell from Human-Induced Pluripotent Stem Cells Improved Cardiac Function in an Acute Myocardial Infarction Rat Model

Figure 9

hiPSC-MSC administration reduced the apoptotic cell number in the infarcted and border area. (a) Detection of apoptotic cells by TUNEL staining. A Apoptotic cell was rarely found in sections of the sham operated rats. B Apoptotic cells in a section of the PBS-injection-treated rat. C Apoptotic cells in a section of the two-injection-treated rat. D Apoptotic cells in a section of the four-injection treated rat 400×. (b) The number of apoptotic cells in the infracted and border area of the cell-treated groups was reduced compared with that of the PBS-injection group, and there was a significant difference between the four-injection group and the PBS-injection group ().
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