Nitisinone-<sup>13</sup>C<sub>6</sub>

Nitisinone-13C6

CAT N°: 28770
Price:

598.00 508.30

Nitisinone-13C6 is intended for use as an internal standard for the quantification of nitisinone (Item No. 17924) by GC- or LC-MS. Nitisinone is an inhibitor of 4-hydroxyphenylpyruvate dioxygenase (HPPD), which converts 4-hydroxyphenylpyruvate (HPPA) to homogentisate in the tyrosine catabolic pathway.{42952} Nitisinone increases urinary levels of HPPA and 4-hydroxyphenyllactate (HPLA) in rats when administered at a dose of 10 mg/kg. Nitisinone (3 mg/kg) prevents the neonatal lethality of fumarylacetoacetate hydrolase (FAH) deficiency in mice when administered to pregnant dams.{42953} It exhibits hepatoprotective effects in FAH-/- mice, such as prevention of increases in plasma levels of aspartate serine aminotransferase (AST) and conjugated bilirubin, when administration is continued following birth at a dose of 1 mg/kg. Nitisinone (100 ?g) decreases urinary excretion of homogentisate and increases urinary excretion of HPPA, HPLA, and 4-hydroxyphenylacetate in a mouse model of alkaptonuria induced by ethylnitrosourea.{42954} Formulations containing nitisinone have been used in the treatment of hereditary tyrosinemia type 1 (HT-1).

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