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Varianten von Harnstoffzyklusstörungen

Variants of urea cycle disorders

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Zusammenfassung

Harnstoffzyklusstörungen gehören, wie die meisten Stoffwechselkrankheiten, mit einer Häufigkeit von weniger als 1:2000 Einwohner zu den seltenen Krankheiten („orphan diseases“). Oft besteht noch der Eindruck, diese seien nicht nur selten, sondern würden zudem lediglich Neugeborene betreffen und seien deshalb v. a. Domäne der Neonatologie. Diese Einschätzung ist nicht nur falsch, sondern auch gefährlich, denn sie verzögert die rechtzeitige Einleitung von erforderlichen diagnostischen und therapeutischen Maßnahmen. Aus diesem Grund widmet sich der vorliegende Beitrag exemplarisch den Varianten von Harnstoffzyklusstörungen, verweist aber auch darauf, dass die meisten Stoffwechselkrankheiten als ein Kontinuum von asymptomatischen biochemischen Phänotypen über milde Verlaufsformen bis zu den klassischen Präsentationen zu verstehen sind.

Abstract

Urea cycle disorders are like most metabolic diseases orphan diseases with a prevalence of less than 1 in 2,000 in the population. Often urea cycle disorders as well as metabolic diseases in general are neglected as they are regarded as rare and to mainly affect newborns. This assumption is incorrect and dangerous because it prolongs the time to implement appropriate diagnostic and therapeutic measures. To increase the awareness of the reader the present paper addresses variants of urea cycle disorders. This will serve as an example for metabolic diseases in general which can be regarded as a continuum from asymptomatic biochemical phenotypes through mild variants to severe classical forms.

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Literatur

  1. Bachmann C (2003) Outcome and survival of 88 patients with urea cycle disorders: a retrospective evaluation. Eur J Pediatr 162:410–416

    Article  PubMed  Google Scholar 

  2. Batshaw ML, MacArthur RB, Tuchman M (2001) Alternative pathway therapy for urea cycle disorders: twenty years later. J Pediatr 138:S46–54

    Article  PubMed  CAS  Google Scholar 

  3. Berning C, Bieger I, Pauli S et al (2008) Investigation of citrullinemia type I variants by in vitro expression studies. Hum Mutat 29:1222–1227

    Article  PubMed  CAS  Google Scholar 

  4. Bogdanovic MD, Kidd D, Briddon A et al (2000) Late onset heterozygous ornithine transcarbamylase deficiency mimicking complex partial status epilepticus. J Neurol Neurosurg Psychiatry 69:813–815

    Article  PubMed  CAS  Google Scholar 

  5. Brusilow S, Horwich A (2001) Urea cycle enzymes. In: Scriver C, Beaudet A, Sly W, Valle D (Hrsg) The metabolic & molecular bases of inherited disease. McGraw-Hill, New York, S 1909–1963

  6. Brusilow SW, Maestri NE (1996) Urea cycle disorders: diagnosis, pathophysiology, and therapy. Adv Pediatr 43:127–170

    PubMed  CAS  Google Scholar 

  7. Feillet F, Leonard JV (1998) Alternative pathway therapy for urea cycle disorders. J Inherit Metab Dis [Suppl 1] 21:101–111

    Google Scholar 

  8. Häberle J (2010) Diagnosis and treatment of urea cycle disorders. J Pediatr Sci 3(1):e65

    Google Scholar 

  9. Häberle J (2011) Clinical practice: the management of hyperammonemia. Eur J Pediatr 170:21–34

    Article  PubMed  Google Scholar 

  10. Häberle J, Vilaseca MA, Meli C et al (2010) First manifestation of citrullinemia type I as differential diagnosis to postpartum psychosis in the puerperal period. Eur J Obstet Gynecol Reprod Biol 149:228–229

    Article  PubMed  Google Scholar 

  11. Honeycutt D, Callahan K, Rutledge L, Evans B (1992) Heterozygote ornithine transcarbamylase deficiency presenting as symptomatic hyperammonemia during initiation of valproate therapy. Neurology 42:666–668

    PubMed  CAS  Google Scholar 

  12. Klaus V, Vermeulen T, Minassian B et al (2009) Highly variable clinical phenotype of carbamylphosphate synthetase 1 deficiency in one family: an effect of allelic variation in gene expression? Clin Genet 76:263–269

    Article  PubMed  CAS  Google Scholar 

  13. Kobayashi K, Sinasac DS, Iijima M et al (1999) The gene mutated in adult-onset type II citrullinaemia encodes a putative mitochondrial carrier protein. Nat Genet 22:159–163

    Article  PubMed  CAS  Google Scholar 

  14. Krebs H, Henseleit K (1932) Untersuchungen über die Harnstoffbildung im Tierkörper. Hoppe-Seyler Z Physiol Chem 210:325–332

    Google Scholar 

  15. Legras A, Labarthe F, Maillot F et al (2002) Late diagnosis of ornithine transcarbamylase defect in three related female patients: polymorphic presentations. Crit Care Med 30:241–244

    Article  PubMed  Google Scholar 

  16. Leonard JV, Morris AA (2002) Urea cycle disorders. Semin Neonatol 7:27–35

    Article  PubMed  CAS  Google Scholar 

  17. Maestri NE, Lord C, Glynn M et al (1998) The phenotype of ostensibly healthy women who are carriers for ornithine transcarbamylase deficiency. Medicine (Baltimore) 77:389–397

    Google Scholar 

  18. Msall M, Batshaw ML, Suss R et al (1984) Neurologic outcome in children with inborn errors of urea synthesis. Outcome of urea-cycle enzymopathies. N Engl J Med 310:1500–1505

    Article  PubMed  CAS  Google Scholar 

  19. Nassogne MC, Heron B, Touati G et al (2005) Urea cycle defects: management and outcome. J Inherit Metab Dis 28:407–414

    Article  PubMed  CAS  Google Scholar 

  20. Picca S, Dionisi-Vici C, Abeni D et al (2001) Extracorporeal dialysis in neonatal hyperammonemia: modalities and prognostic indicators. Pediatr Nephrol 16:862–867

    Article  PubMed  CAS  Google Scholar 

  21. Pridmore CL, Clarke JT, Blaser S (1995) Ornithine transcarbamylase deficiency in females: an often overlooked cause of treatable encephalopathy. J Child Neurol 10:369–374

    Article  PubMed  CAS  Google Scholar 

  22. Russell A, Levin B, Oberholzer VG, Sinclair L (1962) Hyperammonaemia. A new instance of an inborn enzymatic defect of the biosynthesis of urea. Lancet 2:699–700

    Article  PubMed  CAS  Google Scholar 

  23. Sedel F, Baumann N, Turpin JC et al (2007) Psychiatric manifestations revealing inborn errors of metabolism in adolescents and adults. J Inherit Metab Dis 30:631–641

    Article  PubMed  CAS  Google Scholar 

  24. Serrano M, Perez-Duenas B, Gomez-Lopez L et al (2009) Neuropsychiatric manifestations in late-onset urea cycle disorder patients. J Child Neurol 25(3):352–358

    Article  PubMed  Google Scholar 

  25. Smith W, Kishnani PS, Lee B et al (2005) Urea cycle disorders: clinical presentation outside the newborn period. Crit Care Clin 21:S9–S17

    Article  PubMed  Google Scholar 

  26. Summar M (2001) Current strategies for the management of neonatal urea cycle disorders. J Pediatr 138:S30–S39

    Article  PubMed  CAS  Google Scholar 

  27. Summar ML, Barr F, Dawling S et al (2005) Unmasked adult-onset urea cycle disorders in the critical care setting. Crit Care Clin 21:S1–S8

    Article  PubMed  Google Scholar 

  28. Summar ML, Dobbelaere D, Brusilow S, Lee B (2008) Diagnosis, symptoms, frequency and mortality of 260 patients with urea cycle disorders from a 21-year, multicentre study of acute hyperammonaemic episodes. Acta Paediatr 97:1420–1425

    Article  PubMed  Google Scholar 

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Häberle, J. Varianten von Harnstoffzyklusstörungen. Monatsschr Kinderheilkd 159, 834–841 (2011). https://doi.org/10.1007/s00112-011-2444-0

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