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# Add the 3compartment steady-state model (Pearce et al., 2017) to the list of
# models:
#
# Pearce, Robert G., et al. "Httk: R package for high-throughput
# toxicokinetics." Journal of statistical software 79.4 (2017): 1.
#Analytic expression for steady-state plasma concentration.
model.list[["3compartmentss"]]$analytic.css.func <- "calc_analytic_css_3compss"
# What units does the analytic function return:
model.list[["3compartmentss"]]$steady.state.units <- "mg/L"
# Function used for generating model parameters:
model.list[["3compartmentss"]]$parameterize.func <- "parameterize_steadystate"
# These are all the parameters returned by the R model parameterization function.
# Some of these parameters are not directly used to solve the model, but describe
# how other parameters were calculated:
model.list[["3compartmentss"]]$param.names <- c("BW",
"Clint",
"Clint.dist",
"Dow74",
"Fgutabs",
"Fhep.assay.correction",
"Funbound.plasma",
"Funbound.plasma.dist",
"Funbound.plasma.adjustment",
"hepatic.bioavailability",
"liver.density",
"million.cells.per.gliver",
"MW",
"Qtotal.liverc",
"Qgfrc",
"Rblood2plasma",
"Vliverc")
# Allowable units (and whether they are for amounts or concentration):
model.list[["3compartmentss"]]$conc.units <- c('um', 'mg/l')
model.list[["3compartmentss"]]$amount.units <- c('umol', 'mg')
#Parameters needed to make a prediction (this is used by get_cheminfo):
model.list[["3compartmentss"]]$required.params <- c(
"Clint",
"Funbound.plasma",
"Pow",
"pKa_Donor",
"pKa_Accept",
"MW"
)
# If httk-pop is enabled:
# We want all the standard physiological calculations performed:
model.list[["3compartmentss"]]$calc.standard.httkpop2httk <- TRUE
# These are the model parameters that are impacted by httk-pop:
model.list[["3compartmentss"]]$httkpop.params <- c(
"BW",
"Fgutabs",
"hepatic.bioavailability",
"liver.density",
"million.cells.per.gliver",
"Qtotal.liverc",
"Qgfrc",
"Rblood2plasma",
"Vliverc")
# Do we need to recalculate partition coefficients when doing Monte Carlo?
model.list[["3compartmentss"]]$calcpc <- FALSE
# Do we need to recalculate first pass metabolism when doing Monte Carlo?
model.list[["3compartmentss"]]$firstpass <- TRUE
# These model parameters are impacted by the in vitro measurements:
model.list[["3compartmentss"]]$invitro.params <- c("BW",
"Clint",
"Clint.dist",
"Fhep.assay.correction",
"Funbound.plasma",
"Funbound.plasma.dist",
"Funbound.plasma.adjustment",
"hepatic.bioavailability",
"Rblood2plasma")
# Do we ignore the Fups where the alue was below the limit of detection?
model.list[["3compartmentss"]]$exclude.fup.zero <- FALSE
# These are the parameter names needed to describe steady-state dosing:
model.list[["3compartmentss"]]$css.dosing.params <- c("hourly.dose")
# Filter out volatile compounds with Henry's Law Constant Threshold
model.list[["3compartmentss"]]$log.henry.threshold <- c(-4.5)
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