Why the study?
TBX20 mutations contribute to familial AF, but the mutational prevalence and spectrum of this gene in sporadic AF remain unknown.
Are TBX20 variations associated with susceptibility to sporadic atrial fibrillation?
Population
352 individuals with sporadic AF and 376 healthy subjects without AF history
Comparison
Individuals with sporadic AF vs healthy subjects without AF history
Design
Prospective case-control genetic association and functional study
Key result
Two novel heterozygous truncating TBX20 variations were detected in 0.57% of patients with sporadic atrial fibrillation, but were absent in healthy controls.
Authors
Loading...
Rare TBX20 truncating variants may predispose to sporadic AF; extends genetic spectrum but leaves open clinical relevance pending replication.
Case-Control (n=728)
Are TBX20 variations associated with susceptibility to sporadic atrial fibrillation?
Absolute Event Rate: 0.57% vs 0%
Novel haplo-insufficient TBX20 variations are identified as genetic defects predisposing to sporadic atrial fibrillation, expanding the genetic spectrum of the disease.
Xu et al. (2026) conducted a case-control in Sporadic Atrial Fibrillation (n=728). TBX20 variations vs. Healthy subjects without AF history was evaluated on Presence of TBX20 variations. Two novel heterozygous truncating TBX20 variations were detected in 0.57% of patients with sporadic atrial fibrillation, but were absent in healthy controls.