ReviewEuropean journal of clinical pharmacology1993
Nonlinear kinetics and the 1-exp function in nephropharmacology.
Review in European journal of clinical pharmacology, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 1 citations in OpenAlex.
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3 authors at 1 institution in 1 country.
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Abstract
The basic law in nephropharmacology states that pharmacokinetic parameters depend linearly on renal function. Few exceptions to linear dependence have been reported, e.g. substances with saturable tubular reabsorption or secretion. A further example is cyclosporin, which was found to be eliminated according to log-concave nonlinear kinetics in 3 patients with hepatotoxicity after kidney transplantation. The nonlinear cyclosporin kinetics were computer-fitted to the integrated forms of the 1-exp function and the Michaelis-Menten equation by nonlinear regression analysis. The same maximal velocity (Vmax = 23 ng ml-1 h-1) and Michaelis constant (Km = 686 ng ml-1) were calculated for cyclosporin when applying either the 1-exp function or the Michaelis-Menten equation. The nonlinear elimination of cyclosporin, however, was described even more closely by the 1-exp function than by the Michaelis-Menten equation.
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