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. Author manuscript; available in PMC: 2019 Jun 1.
Published in final edited form as: J Mol Cell Cardiol. 2018 May 9;119:147–154. doi: 10.1016/j.yjmcc.2018.05.007

Figure 3.

Figure 3

R9C PLN human engineered cardiac tissues (hECTs) have a blunted β-agonist response. hECTs derived from wild-type or inserted R9C hiPSC-CMs were tested during stimulation at 0.5Hz for (A) developed force and (B) time to relaxation (50%) before and after day 35 of differentiation. (C) Spontaneous beat rate and (D) time to relaxation (50%) were determined on wild-type and R9C hECTs after day 35 before and after treatment with 500nM isoproterenol.