Literature DB >> 529020

Number of exponential terms describing the solution of an N-compartmental mammillary model: vanishing exponentials.

D P Vaughan, M J Dennis.   

Abstract

The solution for a linear mammillary model is always described by a summation of m + 1 negative exponential terms with constant coefficients. m + 1 less than or equal to N, where N is the number of compartments in the model. m is equal to the number of distinct values for the peripheral Ej values. Use is made of matrix notation and the theorems of Browne concerning the eigenvalues of a matrix. The consequences of vanishing exponentials are derived, and in particular the apparent volume of distribution frequently calculated from experimental data is shown not to be unique.

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Year:  1979        PMID: 529020     DOI: 10.1007/BF01062392

Source DB:  PubMed          Journal:  J Pharmacokinet Biopharm        ISSN: 0090-466X


  6 in total

1.  Derivation of general equations for linear mammillary models when the drug is administered by different routes.

Authors:  D P Vaughan; A Trainor
Journal:  J Pharmacokinet Biopharm       Date:  1975-06

2.  The pharmacokinetics of chlormethiazole following intravenous administration in the aged.

Authors:  R L Nation; B Learoyd; J Barber; E J Triggs
Journal:  Eur J Clin Pharmacol       Date:  1976       Impact factor: 2.953

3.  Linear pharmacokinetic models and vanishing exponential terms: implications in pharmacokinetics.

Authors:  J G Wagner
Journal:  J Pharmacokinet Biopharm       Date:  1976-10

4.  General treatment of linear mammillary models with elimination from any compartment as used in pharmacokinetics.

Authors:  L Z Benet
Journal:  J Pharm Sci       Date:  1972-04       Impact factor: 3.534

5.  Pharmacokinetic basis for the influence of route of administration on the area under the plasma concentration-time curve.

Authors:  M Gibaldi; S Feldman
Journal:  J Pharm Sci       Date:  1969-12       Impact factor: 3.534

6.  Model independent derivation of general equations for the "first-pass" effect and extra-hepatic drug elimination.

Authors: 
Journal:  Eur J Clin Pharmacol       Date:  1977       Impact factor: 2.953

  6 in total
  6 in total

Review 1.  Applications of a recirculatory stochastic pharmacokinetic model: limitations of compartmental models.

Authors:  D P Vaughan; I Hope
Journal:  J Pharmacokinet Biopharm       Date:  1979-04

2.  Properties of the recirculation model: matrix description and conditions for a monotonic decreasing single pass response.

Authors:  D J Cutler
Journal:  J Pharmacokinet Biopharm       Date:  1981-04

3.  Mathematical basis and generalization of the Loo-Riegelman method for the determination of in vivo drug absorption.

Authors:  D P Vaughan; M Dennis
Journal:  J Pharmacokinet Biopharm       Date:  1980-02

4.  Simultaneous determination of the intravenous and oral pharmacokinetic parameters of D,L-verapamil using stable isotope-labelled verapamil.

Authors:  M Eichelbaum; A Somogyi; G E von Unruh; H J Dengler
Journal:  Eur J Clin Pharmacol       Date:  1981-01       Impact factor: 2.953

5.  Determinants of Biological Half-Lives and Terminal Slopes in Physiologically Based Pharmacokinetic Systems: Assessment of Limiting Conditions.

Authors:  Yoo-Seong Jeong; William J Jusko
Journal:  AAPS J       Date:  2022-08-30       Impact factor: 3.603

6.  Consideration of Fractional Distribution Parameter fd in the Chen and Gross Method for Tissue-to-Plasma Partition Coefficients: Comparison of Several Methods.

Authors:  Yoo-Seong Jeong; William J Jusko
Journal:  Pharm Res       Date:  2022-03-14       Impact factor: 4.580

  6 in total

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