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Direct myocardial transfection in two animal models. Evaluation of parameters affecting gene expression and percutaneous gene delivery.
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1993
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The results of the present study demonstrate that increasing the amount of DNA employed for direct myocardial transfection fails to produce a statistically significant increase in the level of gene expression. In contrast, increasing the volume of injectate used to directly transfect a constant amount of DNA (50 micrograms) produced significantly augmented expression of the reporter luciferase gene. Luciferase expression was detected 6 months posttransfection. Successful transfection after fluoroscopic-guided direct percutaneous delivery suggests that it may be feasible to deliver genetic material into the myocardium of patients in a similar fashion.