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. Author manuscript; available in PMC: 2024 Jul 1.
Published in final edited form as: J Physiol. 2022 Sep 29;601(13):2685–2710. doi: 10.1113/JP283602

Figure 18 – Inhibition of NCX has biphasic effects on CaT and APD alternans but increasing surface/inner CRU NCX expression ratio only exhibits CaT alternans at 5 Hz.

Figure 18 –

A) The rate thresholds of CaT alternans (i) and APD alternans (ii) display biphasic dependence on NCX reduction. B) Varying surface/inner CRU NCX expression ratio induces CaT alternans at 5 Hz, especially in cells with intermediate TATS.