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. 2018 Dec 6;6:e6072. doi: 10.7717/peerj.6072

Table 1. Values and reference of parameters in the model.

Parameter (unit) Description Dimensional Reference
Normal I/R I/R with hypoxia- preconditioning
SB (0) (pg/mL)a Initial SDF-1 in blood 48 Karp & Teo (2009) and measured
aB (pg/mL)b Amplitude of SDF-1 concentration change N/A 7. 94 × 104 Estimated
bB (h−1) SDF-1 decay rate N/A 0.11 Estimated
cB (h−1) Control factor of SDF-1 kinetics N/A 0.001 Estimated
η1 Association coefficient N/A 0.30 Estimated
η2 Association coefficient N/A 1.73 Estimated
η3 Association coefficient N/A 1.00 Estimated
SL (0) (pg/mL)a Initial SDF-1 in liver 278 Karp & Teo (2009) and measured
C1(cell/kg)a Intercept for the distribution phase of MSCs 2.94 × 109 (5 × 105 dose) Estimated
8.82 × 109 (1.5 × 106 dose) N/A
C2 (cell/kg)b Intercept for the elimination phase of MSCs 1.12 × 105 (5 × 105 dose) 1. 31 × 105 (5 × 105 dose) Estimated
3.59 × 105 (1.5 × 106 dose) 3.38 × 105 (1.5 × 106 dose) N/A
λ1 (h−1)a Slope of the distribution phase of MSCs 17.52 Estimated
λ2 (h−1)b Slope for the elimination phase of MSCs 0.10 (5 × 105 dose) 0.08 (5 × 105 dose) Estimated
0.07 (1.5 × 106 dose) 0.04 (1.5 × 106 dose) N/A
α (h−1)a MSC arrest rate associated with blood flow 0.64 0.71 0.72 Wang et al. (2016) and estimated
β (pgah) MSC arrest rate associated with SDF-1/CXCR4 attraction 0.01 0.12 0.19 Estimated
γ (h−1) MSC loss rate in organ 0.04 0.03 0.02 Wang et al. (2016) and estimated
K (cell/kg) SDF-1/CXCR4 attraction capacity in organ 4. 63 × 106 5.29 × 106 2. 20 × 107 Estimated

Notes.

a

Same value for all organ and MSC conditions.

b

Same value for all MSC conditions.