Task: Answer Verification
Input (English): Question: Does angiotensin-converting enzyme insertion/deletion polymorphism influence the restenosis rate after coronary stent implantation?
Answer: In contrast to other study groups, we were unable to disclose that the DD polymorphism of the ACE gene was associated with a higher rate of restenosis after coronary stent implantation in this multicenter study. In addition, patients with higher ACE serum levels did not show a higher restenosis rate in this trial. We conclude that the pathogenesis of restenosis is a multifactorial process involving various genetic and nongenetic factors.
Output (English): no