Download Quantitative Modeling in Toxicology by Kannan Krishnan, Melvin E. Andersen PDF

By Kannan Krishnan, Melvin E. Andersen

ISBN-10: 047068626X

ISBN-13: 9780470686263

ISBN-10: 0470998091

ISBN-13: 9780470998090

Governments worldwide are passing legislation requiring to evaluate the toxicity of the chemical compounds and items they produce, yet to take action whereas lowering, refining, or perhaps changing trying out on animals. to fulfill those specifications, experimental toxicologists and hazard assessors are adopting quantitative techniques and desktop simulations to review the organic destiny and results of chemical substances and medication.

In Quantitative Modeling in Toxicology major specialists define the present country of information at the modeling of dose, tissue interactions and tissue responses. Each bankruptcy describes the mathematical beginning, parameter estimation, demanding situations and views for improvement, in addition to the presentation of a modeling template. also, instruments and ways for carrying out uncertainty, sensitivity and variability analyses in those types are described.  themes coated contain:

  • the quantitative versions of pharmacokinetics of person chemical compounds and combinations
  • models for toxicant-target tissue interaction. 
  • models for mobile, organ, and organism responses.
  • approaches, instruments and demanding situations for version software and assessment

an internet site containing laptop codes accompanies the booklet to aid the reader reconstruct the types defined and mentioned within the quite a few chapters.

Quantitative Modeling in Toxicology serves as a necessary reference resource and gear field for probability assessors and researchers and scholars in toxicology, public future health, pharmacology, and human toxicology attracted to constructing quantitative versions for a greater realizing of dose-response relationships.Content:
Chapter 1 Quantitative Modeling in Toxicology: An advent (pages 1–18): Dr Melvin E. Andersen and Dr. Kannan Krishnan
Chapter 2 PBPK Modeling: A Primer (pages 19–58): Dr. Kannan Krishnan, George D. Loizou, Martin Spendiff, John C. Lipscomb and Dr Melvin E. Andersen
Chapter three Pharmacokinetic Modeling of Manganese – a necessary aspect (pages 59–82): Andy Nong, Michael D. Taylor, Miyoung Yoon and Dr Melvin E. Andersen
Chapter four Physiologically dependent Modeling of Pharmacokinetic Interactions in Chemical combos (pages 83–105): Sami Haddad, Robert Tardif, Jonathan Boyd and Kannan Krishnan
Chapter five Physiological Parameters and Databases for PBPK Modeling (pages 107–134): Douglas O. Johns, Elizabeth Oesterling Owens, Chad M. Thompson, Babasaheb Sonawane, Dale Hattis and Dr. Kannan Krishnan
Chapter 6 Modeling Cholinesterase Inhibition (pages 135–165): Charles Timchalk, Paul M. Hinderliter and Torka S. Poet
Chapter 7 Modeling of Protein Induction and Dose?Dependent Hepatic Sequestration (pages 167–179): Andy Nong and Dr Melvin E. Andersen
Chapter eight Bistable Signaling Motifs and telephone destiny judgements (pages 181–198): Sudin Bhattacharya, Qiang Zhang and Dr Melvin E. Andersen
Chapter nine Ultrasensitive reaction Motifs in Biochemical Networks (pages 199–217): Qiang Zhang, Sudin Bhattacharya, Courtney G. Woods and Dr Melvin E. Andersen
Chapter 10 Gene and Protein Expression – Modeling Nested Motifs in mobile and Tissue reaction Networks (pages 219–233): Dr Melvin E. Andersen, Qiang Zhang and Sudin Bhattacharya
Chapter eleven Modeling Liver and Kidney Cytotoxicity (pages 235–250): Kai H. Liao, Yei M. Tan, Harvey J. Clewell and Dr Melvin E. Andersen
Chapter 12 Computational version for Iodide economic system and the HPT Axis within the grownup Rat (pages 251–267): Jeffrey W. Fisher and Eva D. McLanahan
Chapter thirteen Two?Stage Clonal development Modeling of melanoma (pages 269–282): Rory B. Conolly and Dr Melvin E. Andersen
Chapter 14 Statistical and Physiological Modeling of the Toxicity of chemical substances in combinations (pages 283–297): Hisham A. El?Masri, Michael A. Lyons and Raymond S. H. Yang
Chapter 15 (Q)SAR versions of inauspicious Responses: Acute Systemic Toxicity (pages 299–314): Mark T. D. Cronin, Yana ok. Koleva and Judith C. Madden
Chapter sixteen Modeling Exposures to chemical substances from a number of assets and Routes (pages 315–351): Panos G. Georgopoulos, Sastry S. Isukapalli and Dr. Kannan Krishnan
Chapter 17 Probabilistic opposite Dosimetry Modeling for studying Biomonitoring information (pages 353–369): Yu?Mei Tan and Harvey J. Clewell
Chapter 18 Quantitative Modeling in Noncancer hazard overview (pages 371–398): Q. Jay Zhao, Lynne Haber, Melissa Kohrman?Vincent, Patricia Nance and Michael Dourson
Chapter 19 software of Physiologically dependent Pharmacokinetic Modeling in future health possibility evaluate (pages 399–428): Harvey J. Clewell
Chapter 20 Uncertainty, Variability, and Sensitivity Analyses in Simulation types (pages 429–458): Sastry S. Isukapalli, Martin Spendiff, Panos G. Georgopoulos and Dr. Kannan Krishnan
Chapter 21 evaluate of Quantitative types in Toxicology: growth and demanding situations (pages 459–475): Dr. Kannan Krishnan and Dr Melvin E. Andersen

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5). Such in silico approaches for predicting maximal velocity and the Michaelis constant for metabolic reactions in animals and humans are not available yet (B´eliveau and Krishnan, 2003). 7). , 2005; B´eliveau and Krishnan, 2005; Kamgang, Peyret, and Krishnan, 2008). 7 Fragment Specific Contributions toward Po : a and Pw : a as well as Intrinsic Clearance [CLint (l/h/µmol P450)]. 535 From B´eliveau et al. (2005). 7) · f NP + . 7) · f NP X · f IW + + KaPR · [PR]T Y Y where: f = fractional tissue volume; EW = extracellular water; IW = intracellular water; NL = neutral lipids; NP = neutral phospholipids; PR = dominant binding protein; AP= acidic phospholipids; T = tissue; Ka = association constant; pKa = acid dissociation constant; X = 1 for neutrals; (1 + 10pKa – pHIW for monoprotic bases; 1 + 10pHIW-pKa for monoprotic acids; 1 + 10pHIW-pKaACID +10pKABASE-pHIW for zwitterions); Y = 1 for neutrals; (1 + 10pKa-pHp for monoprotic bases; 1 + 10pHp+pKa for monoprotic bases; 1 + 10pHIW-pKaACID + 10pKABASE-pHIW for zwitterions).

59, 37–48. J. G. (1954) 100-fold margin of safety. Assoc. Food Drug Off. Q. , 18, 33–35. M. (1996) A biologically-based dose–response model for developmental toxicology. , 16, 449–458. W. (1991) Development and utilization of physiologically based pharmacokinetic models for toxicological applications. J. Toxicol. Environ. Health, 32, 247–267. E. (1990) A physiologically based pharmacokinetic description of the tissue distribution and enzyme inducing properties of 2,3,7,8tetrachlorodibenzo-p-dioxin in the rat.

The calculation of the rate of change should be done for very small units of time or simulation period (alternatively referred to as the integration interval, dt). At the beginning of a simulation period, say the amount of chemical in the compartment is zero. 8 µg at the end of one unit time or one integration interval. This process yields the amount in tissue, which is divided by the volume of the tissue compartment to obtain the concentration in the tissue, which in turn is used as the basis to derive the free concentration of chemical leaving the tissue.

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