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. Author manuscript; available in PMC: 2021 Dec 1.
Published in final edited form as: Acta Physiol (Oxf). 2020 Apr 11;229(4):e13471. doi: 10.1111/apha.13471

Table I.

Summary of PUFA effect on QT-intervals and APD90 in ex-vivo guinea pig hearts.

Compound Baseline (ms) E4031 0.03 μM (ms) ΔQT/APD90, compared with baseline (ms) PUFA (ms) ΔQT/APD90, compared with E4031 (ms) ΔQT/APD90, compared with baseline (ms) n
DHA-GLY (10 μM) QT 132.9 ± 3.2 151.5 ± 4.1 +18.6 ± 1.9 (P < 0.001) 135.4 ± 3.7 −16.2 ± 2.4 (P < 0.01) +2.4 ± 1.7 (P = 0.4) 6
APD90 118.1 ± 1.9 133.8 ± 2.7 +15.8 ± 1.7 (P < 0.001) 110.6 ± 4.1 −23.2 ± 3.6 (P < 0.01) −7.4 ± 3.2 (P = 0.13) 6
DHA (10 μM) QT 135.7 ± 1.5 156.0 ± 1.5 +20.3 ± 2.7 (P < 0.01) 145.2 ± 4.3 −10.8 ± 1.4 (P < 0.01) +9.6 ± 3.1 (P = 0.06) 6
APD90 115.5 ± 1.4 132.3 ± 3.0 +16.8 ± 2.3 (P < 0.01) 115.9 ± 3.7 −16.4 ± 1.2 (P < 0.001) +0.3 ± 3.2 (P = 0.99) 6
Lin-GLY (10 μM) QT 134.6 ± 1.7 152.7 ± 1.0 +18.1 ± 1.8 (P < 0.01) 148.4 ± 1.3 −4.3 ± 1.3 (P ≤ 0.05) +13.8 ± 1.1 (P ≤ 0.05) 5
APD90 121.4 ± 0.7 141.0 ± 1.7 +19.6 ± 1.7 (P < 0.001) 132.4 ± 2.7 −8.6 ± 1.5 (P ≤ 0.05) +11.0 ± 3.0 (P ≤ 0.05) 5
N-AT (30 μM) QT 133.0 ± 1.9 149.2 ± 2.3 +16.2 ± 3.1 (P < 0.01) 132.7 ± 3.2 −16.4 ± 2.6 (P < 0.01) −0.3 ± 2.7 (P = 0.7) 6
APD90 115.4 ± 2.9 131.3 ± 2.0 +15.9 ± 2.5 (P < 0.01) 112.3 ± 3.4 −19.0 ± 3.0 (P < 0.01) −3.1 ± 1.8 (P = 0.29) 6

QT/APD90 determined during pacing at 250 BPM as described in Methods. Data shown as mean ± sem. Statistics denote repeated measures one-way ANOVA followed by Tukeýs multiple comparison test.