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. Author manuscript; available in PMC: 2024 Sep 24.
Published in final edited form as: J Physiol. 2023 May 21;602(18):4461–4486. doi: 10.1113/JP284538

Table 3.

Estimated myocyte number, nucleation and cell activity during development

Days post-conception LV myocyte number (109) Estimated LV nucleation (% of all myocytes) LV cell cycle activity (% of all myocytes)

Mononucleated Binucleated

93 0.5 100.0 0.0 7.7
125 1.3 74.5 25.4 2.9
135 1.6 53.6 46.6 1.9
152 (neonatal) 0.9 21.4 76.7 1.4

Data are extrapolated from formulas and data in Jonker et al. (2015).