| Pharmacokinetic modeling: Prediction and evaluation of route dependent dosimetry of bisphenol A in monkeys with extrapolation to humans. | |
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MedLine Citation:
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PMID: 21920375 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A physiologically based pharmacokinetic (PBPK) model was developed for bisphenol A (BPA) in adult rhesus monkeys using intravenous (iv) and oral bolus doses of 100μgd6-BPA/kg (Doerge et al., 2010). This calibrated PBPK adult monkey model for BPA was then evaluated against published monkey kinetic studies with BPA. Using two versions of the adult monkey model based on monkey BPA kinetic data from Doerge et al. (2010) and Taylor et al. (2011), the aglycone BPA pharmacokinetics were simulated for human oral ingestion of 5mg d16-BPA per person (Völkel et al., 2002). Völkel et al. were unable to detect the aglycone BPA in plasma, but were able to detect BPA metabolites. These human model predictions of the aglycone BPA in plasma were then compared to previously published PBPK model predictions obtained by simulating the Völkel et al. kinetic study. Our BPA human model, using two parameter sets reflecting two adult monkey studies, both predicted lower aglycone levels in human serum than the previous human BPA PBPK model predictions. BPA was metabolized at all ages of monkey (PND 5 to adult) by the gut wall and liver. However, the hepatic metabolism of BPA and systemic clearance of its phase II metabolites appear to be slower in younger monkeys than adults. The use of the current non-human primate BPA model parameters provides more confidence in predicting the aglycone BPA in serum levels in humans after oral ingestion of BPA. |
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Authors:
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Jeffrey W Fisher; Nathan C Twaddle; Michelle Vanlandingham; Daniel R Doerge |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-2 |
Journal Detail:
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Title: Toxicology and applied pharmacology Volume: - ISSN: 1096-0333 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0416575 Medline TA: Toxicol Appl Pharmacol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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Copyright © 2011. Published by Elsevier Inc. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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