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编 号:F425841
分子式:C5H4N2O4Zn0.5
分子量:188.79
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生物活性:
Orotic acid (zinc), a precursor in biosynthesis of pyrimidine nucleotides and RNA, is released from the mitochondrial dihydroorotate dehydrogenase (DHODH) for conversion to UMP by the cytoplasmic UMP synthase enzyme. Orotic acid (zinc) is a marker for measurement in routine newborn screening for urea cycle disorders. Orotic acid (zinc) can induce hepatic steatosis and hepatomegaly in rats.

体内研究:
Orotic acid is a marker for measurement of urea cycle disorders (UCDs), including ornithine transcarbamylase deficiency (OTCD).Orotic acid (1.0% addition to the diet; p.o. for 3-10 d) induces a development of fatty liver by day 7, and decreases purine/pyrimidine ratio of hepatic acid-soluble nucleotides by day 3.

体外研究:
Orotic acid is found in milk and dairy products, and it is converted to uridine for use in the pyrimidine salvage pathway predominantly in liver, kidney and erythrocytes.
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