POSTN and atrial fibrillation: After Ang II infusion, AF inducibility (Fig. 8d) and duration (Fig. 8f) were increased in AAV9-POSTN-shIP mice compared to Control mice (Control + Ang II: 2.850 ± 0.100 s versus AAV9-POSTN-shIP + Ang II: 3.775 ± 0.211 s).