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Figure 2 Heterogeneity of Cumulative Vagal Effect in the Left Atrium and Its Correlation With IKAch (Kir3.1/3.4) Expression in the PV, PLA, and LAA
(A) The panel shows cumulative vagal effect as measured by the ERP difference between P + VS and P + ATR. The cumulative vagal effect is greatest in the LAA, followed by the PLA and PV (LAA > PLA  PV). Panels B and C show western blots for Kir3.1 and 3.4, respectively. Each protein shows greatest expression in the LAA, followed by the PLA and PV (LAA > PLA PV). LSPV = left superior pulmonary vein; LIPV = left inferior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein; other abbreviations as in Figure 1.
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