Table 1. Concentrations of secreted human EPO protein over time as measured via ELISA analysis (as depicted in Figure 1).

Time post administration (h)	Secreted human EPO protein (ng ml−1)
0.50	188
3	10 125
6	11 296
12	8521
24	6114
48	341
72	47.0
1 week	0.12

Abbreviations: ELISA, enzyme-linked immunosorbent assay; EPO, erythropoietin.

EPO mRNA (1.0 mg kg⁻¹) was delivered via C12-200-based lipidoid nanoparticles. Values are depicted as ng of human EPO protein per ml of serum.