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pubmed:abstractText |
Mitoguazone (methylglyoxal-bis(guanyl-hydrazone), MGBG) was studied by its first-pass mechanism in both cancer patients and experimental cancer models. It appears from the study that 90% of MGBG is cleared from the plasma within minutes. 24-h recovery in the urine, however, did not exceed 16% so that 84% of the drug seems to be bound to subcellular compartments. Tissue levels of MGBG in the normal prostate ranged higher than in experimental prostate cancer type 3327 M/G, i.e. enhanced clearance from cancer tissues: polyamine biosynthetic enzymes ornithine decarboxylase as well as S-adenosylmethionine decarboxylase are contrarily affected by MGBG.
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