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citrin deficiency

MIM.605814

Wednesday 10 March 2010

Definition: Citrullinemia is an autosomal recessive disease caused by a deficiency of argininosuccinate synthetase and characterized primarily by elevated serum and urine citrulline levels (Kobayashi et al., 1999).

Citrin deficiency (or type 2 citrullinemia) is caused by mutation in the SLC25A13 gene (MIM.603859).

Nota bene: Adult-onset type 2 citrullinemia (MIM.603471) is caused by mutation in the same gene SLC25A13. Classic citrullinemia (CTLN1; MIM.215700) is caused by mutation in the gene encoding argininosuccinate synthetase (ASS; MIM.603470).

Types

- neonatal citrin deficiency (MIM.605814)
- adult-type citrin deficiency (MIM.603471)

Synopsis

- neonatal intrahepatic cholestasis
- neonatal hepatitis
- neonatal hepatic necrosis

See also

- fetal hepatopathy

References

- Citrin deficiency, a perplexing global disorder. Dimmock D, Maranda B, Dionisi-Vici C, Wang J, Kleppe S, Fiermonte G, Bai R, Hainline B, Hamosh A, O’Brien WE, Scaglia F, Wong LJ. Mol Genet Metab. 2009 Jan;96(1):44-9. PMID: 19036621

- Chubby face and the biochemical parameters for the early diagnosis of neonatal intrahepatic cholestasis caused by citrin deficiency. Chen HW, Chen HL, Ni YH, Lee NC, Chien YH, Hwu WL, Huang YT, Chiu PC, Chang MH. J Pediatr Gastroenterol Nutr. 2008 Aug;47(2):187-92. PMID: 18664871