Abstract
Background
Recent research has found that single nucleotide polymorphisms (SNPs) in the nitric oxide synthase 1 adaptor protein (NOS1AP) gene are associated with altered QT intervals and sudden cardiac death (SCD). However, the clinical utility and implications of NOS1AP SNPs remain unclear. Thus, this study aimed to explore the influence of NOS1AP SNPs in patients with implantable cardioverter defibrillator (ICD) for secondary prevention.
Methods
We conducted a case–control study to evaluate the most studied SNPs in NOS1AP (rs12143842, rs10494366, rs12567209, and rs16847548) in patients with ICD for secondary prevention. Patients were followed for up to 36 months from the time of ICD implantation. ICD interrogation data at 3 and 12 months, including rapid ventricular arrhythmia episodes and appropriate therapies, were then analyzed.
Results
A significant association was observed between rs10494366 and ICD recipients who experienced appropriate therapies. After a mean follow-up time of 31.70 ± 9.15 months, we detected significant differences among the three rs10494366 genotype groups in the distribution of ICD shocks and appropriate therapies, as well as in the correlation of rs10494366 and ICD shocks. According to Kaplan–Meier and Cox regression analyses, patients with the TT genotype had a higher risk of SCD than those with the GG genotype.
Conclusions
The present study revealed that NOS1AP SNP rs10494366 was associated with appropriate therapies. Specifically, the TT genotype increased ICD shocks and SCD risk in patients with ICD for secondary prevention for the first time.
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Funding
This work was supported by Henan Province Medical Science and Technology Tackling Project (NO. 201303134); Natural Science Foundation of China (NO. U1504802); The Base and Cutting-edge Technology Research Project of Henan Province (NO. 122300410136); Joint Construction Project of Henan Medical Science and Technology Research Plan (No. LHGJ20200080).
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Zang, X., Zhang, S., Li, S. et al. Evaluating Common NOS1AP Variants in Patients with Implantable Cardioverter Defibrillators for Secondary Prevention. J Interv Card Electrophysiol 64, 793–800 (2022). https://doi.org/10.1007/s10840-022-01137-9
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DOI: https://doi.org/10.1007/s10840-022-01137-9