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- W2126521568 abstract "Transplantation of myocytes into scarred myocardium has been shown to inhibit ventricular remodeling and maintain myocardial contractility. However, the effect of cell transplantation on hearts with global rather than regional dysfunction is unknown. Therefore, we evaluated the effect of transplantation of autologous smooth muscle cells on the morphometry and function of dilated cardiomyopathic hearts.Smooth muscle cells were isolated from the ductus deferens of 13-week-old BIO 53.58 hamsters with dilated cardiomyopathy, and cultured for 4 weeks before transplantation. Smooth muscle cells (4 x 10(6) cells) or culture medium were injected into 17-week-old animals in the transplantation and control groups (n = 12 each), respectively. Prelabeling of the smooth muscle cells with 5-bromo-2'-deoxyuridine was performed before transplantation in a group of transplanted hamsters. Another group (sham, n = 12) underwent the operation but did not receive an injection either of smooth muscle cells or of culture medium. Four weeks after transplantation, heart function was evaluated in a Langendorff preparation.Musclelike tissue, labeled with 5-bromo-2'-deoxyuridine, was found at the site of transplantation in the cell-transplanted animals. The cell-transplanted hearts were smaller (p < 0.001), and had greater developed pressures and maximum rate of increase of left ventricular pressure (both p < 0.001) than control and sham hearts. Control hamsters injected with culture medium did not differ from sham-operated animals.Transplantation of autologous smooth muscle cells prevented cardiac dilatation and improved ventricular function in hamsters with dilated cardiomyopathy." @default.
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- W2126521568 date "2000-09-01" @default.
- W2126521568 modified "2023-09-23" @default.
- W2126521568 title "Autologous smooth muscle cell transplantation improved heart function in dilated cardiomyopathy" @default.
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- W2126521568 doi "https://doi.org/10.1016/s0003-4975(00)01630-1" @default.
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