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. 2014 Sep 5;171(22):5076–5092. doi: 10.1111/bph.12824

Table 5.

The system- and drug-specific parameter values from the extended drug-independent model used to predict effects on the CVS

Parameter Value RSE LLCI ULCI
System-specific parameters
 BSL_HR_SHR (beats min-1) 310 1.12 303 317
 BSL_MAP_SHR (mmHg) 155 0.684 153 157
 BSL_CO_SHR (mL min-1) 69.0 4.17 63.4 74.6
 BSL_HR _WKY(beats min-1) 323 1.61 313 333
 BSL_MAP_WKY (mmHg) 102 0.884 100 104
 BSL_CO_WKY (mL per min) 129 1.47 125 133
kout_HR (h−1) 11.6 19.1 7.27 15.9
kout_SV (h−1) 0.126 30.7 0.0501 0.202
kout_TPR (h−1) 3.58 29.1 1.54 5.62
 FB0 (mmHg−1) 0.00290 5.93 0.00256 0.00324
 FB0_MAP −1.98 10.6 −2.39 −1.57
 HR_SV 0.312 15.6 0.216 0.408
kHD (h−1) 4.70 8.19 3.95 5.45
 PHR 0.632 9.67 0.512 0.752
 PTPR 0.331 12.9 0.247 0.415
 horHR (h) 8.73 3.10 8.20 9.26
 ampHR 0.0918 5.15 0.0825 0.101
 horTPR (h) 19.3 1.92 18.6 20.0
 ampHTPRR Fixed to ampHR
Drug-specific parameters
 Amiloride: Emax model with Emax fixed to 1
  EC50 (ng mL−1) 245 25.1 125 365
 Amlodipine: Emax model with Emax fixed to 1
  EC50 (ng mL−1) 82.8 4.99 74.7 90.9
 Atropine: linear model
  SL (ng mL−1)−1 0.00149 32.3 0.000547 0.00243
 Ka (h−1) 1.17 59.9 –0.204 2.54
 Enalapril: Emax model with Emax fixed to 1
  EC50 (ng mL−1) 1200 4.03 1110 1290
 ke0 (h−1) 0.163 5.07 0.147 0.179
 Fasudil: Emax model with Emax fixed to 1
  EC50 (ng mL−1) 0.172 18.4 0.110 0.234
  HCTZ: Emax model with Emax fixed to 1
  EC50 (ng mL−1) 28 900 7.65 24 600 33 200
 Prazosin: power model
  SL (ng mL−1)−1 0.328 5.58 0.292 0.364
  POW 0.0910 6.05 0.0802 0.102
Interindividual variability
 BSL_HR (CV%) 6.1 4.36 7.47
 BSL_MAP (CV%) 3.7 2.67 4.49
 BSL_CO (CV%) 22.7 18.09 26.57
Residual variability
 Prop. Res.ErrorHR (CV%) 7.8 7.26 8.22
 Prop. Res.ErrorMAP (CV%) 6.0 5.44 6.57
 Prop. Res.ErrorCO (CV%) 6.9 5.72 7.83

CV, coefficient of variation; LLCI, lower limit of 95% confidence interval; RSE, relative standard error of parameter estimate; ULCI, upper limit of 95% confidence interval.