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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

In vitro and in vivo murine metabolism of spirogermanium.

We report the identification of spirogermanium (SG) metabolites derived from incubation of the drug with a mouse liver microsomal preparation as well as those obtained from the urine of mice injected with the drug. GC/MS data using electron impact and chemical ionization indicate that the major metabolic products appearing in the urine of mice are hydroxylated metabolites resulting from oxidation of the ethyl substituents on germanium. Thermospray (TSP) LC/MS data suggest that these hydroxy metabolites are further oxidized to an acid and a deethylated metabolite that has undergone hydroxylation of the germanium atom. In a separate experiment, human urine from a subject undergoing therapy with SG was subjected to TSP-LC/MS analysis. The SG metabolite pattern observed in the urine from human was similar to that observed in the mouse urine. These results suggest that the metabolic fate of SG in human is qualitatively similar to that found in the mouse.[1]

References

  1. In vitro and in vivo murine metabolism of spirogermanium. Garteiz, D., Siddik, Z.H., Newman, R.A. Drug Metab. Dispos. (1991) [Pubmed]
 
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