Preparation for determining pyrimidine metabolic capacity

A - Human Necessities – 61 – K

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A61K 49/00 (2006.01) A61K 49/18 (2006.01) A61K 51/00 (2006.01) A61K 51/04 (2006.01)

Patent

CA 2440372

A method for measuring and evaluating the pyrimidine metabilizability of individual subjects on various fluorouracil-type chemicals typified by 5- fluorouracil which is decomposed in the pyrimidine metabolism pathway; and preparations which are useful in the measurement and evaluation as described above. The pyrimidine metabolizability in vivo can be evaluated by administering a preparation for measuring pyrimidine metabolizability containing a pyrimidine compound or a pyrimidine metabolite which is radio- labeled in at least one of carbon, oxygen and nitrogen atoms serving as the substrate in pyrimidine metabolic enzymes as the active ingredient, and then examining the metabolic behaviors based on the excretion.

L'invention concerne un procédé de mesure et d'évaluation de la capacité de la pyrimidine à être métabolisée par des sujets au moyen de diverses substances chimiques de type fluorouracile, exemplifiées par le 5-fluorouracile qui est décomposé dans la voie métabolique de la pyrimidine, ainsi que des préparations qui sont utiles dans le procédé de mesure et d'évaluation concerné. Il est possible d'évaluer la capacité de la pyrimidine à être métabolisée in vivo par administration d'une préparation, destinée à mesure cette capacité, contenant, en tant qu'ingrédient actif, un composé pyrimidine ou un métabolite de la pyrimidine à marquage radioactif sur au moins un atome de carbone, d'oxygène ou d'azote servant de substrat aux enzymes du métabolisme de la pyrimidine, puis par examen des comportements métaboliques basés sur l'excrétion.

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