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 * Argininemia **


 * =The least common of the urine cycle disorders=


 * =Deficiency of the enzyme arginase=


 * =This enzyme controls the final steps in the urea cycle=


 * =Causes the amino acid arginine and ammonia to accumulate in the blood over periods of time=


 * =This will get toxic if levels reach high amounts=


 * =Becomes visible at age 3=

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