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Pathway Description
Argininemia
Homo sapiens
Disease Pathway
Argininemia is caused by a mutation in the gene ARG, encoding liver arginase, which hydrolyses arginine to urea and ornithine in the last step of the urea cycle. A defect in liver arginase causes accumulation of ammonia in blood; arginine, creatine, guanidinoacetate, and homoarginine in plasma; urea nitrogen in serum; arginine and homoarginine in spinal fluid; and arginiosuccinate orotic acid, and uracil in urine. Symptoms include ataxia, cerebral atrophy, chorea, jaundice, and seizures.
References
Argininemia References
[OMIM: Entry 207800](http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=207800)
[Metagene: id_d=60](http://www.metagene.de/program/d.prg?id_d=60)
Cederbaum SD, Shaw KN, Valente M: Hyperargininemia. J Pediatr. 1977 Apr;90(4):569-73.
Pubmed: 839368
Christmann D, Hirsch E, Mutschler V, Collard M, Marescaux C, Colombo JP: [Late diagnosis of congenital argininemia during administration of sodium valproate]. Rev Neurol (Paris). 1990;146(12):764-6.
Pubmed: 2291040
Cowley DM, Bowling FG, McGill JJ, van Dongen J, Morris D: Adult-onset arginase deficiency. J Inherit Metab Dis. 1998 Aug;21(6):677-8.
Pubmed: 9762606
Prasad AN, Breen JC, Ampola MG, Rosman NP: Argininemia: a treatable genetic cause of progressive spastic diplegia simulating cerebral palsy: case reports and literature review. J Child Neurol. 1997 Aug;12(5):301-9. doi: 10.1177/088307389701200502.
Pubmed: 9378897
Iyer RK, Yoo PK, Kern RM, Rozengurt N, Tsoa R, O'Brien WE, Yu H, Grody WW, Cederbaum SD: Mouse model for human arginase deficiency. Mol Cell Biol. 2002 Jul;22(13):4491-8.
Pubmed: 12052859
Urea Cycle References
Lehninger, A.L. Lehninger principles of biochemistry (4th ed.) (2005). New York: W.H Freeman.
Salway, J.G. Metabolism at a glance (3rd ed.) (2004). Alden, Mass.: Blackwell Pub.
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