Abstract
ABSTRACTRecent scientific and policy initiatives have resulted in increased interest in risk to fetuses, infants, and children and consideration of how such risks should be evaluated. A useful way of addressing this issue is to use physiologically based pharmacokinetic (PBPK) models to compare the tissue dose that children and adults receive for a given amount of a chemical ingested or inhaled. The response in children and adults for a given tissue dose can also be compared. To aid in the development of age-specific PBPK models for experimental animals, we have collected information on physiological parameters in neonates and young animals, through 60 days of age. Our effort focused on generic physiological values, such as tissue weight (termed tissue volume in the context of PBPK modeling), intake (alveolar ventilation, food intake, water intake), and flows (blood flows to tissues, bile flow, creatinine clearance, and glomerular filtration rate). To date, parameters for Sprague-Dawley rats and mice of mu...
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