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Long-term effects of medical management on growth and weight in individuals with urea cycle disorders

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

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  • Roland Posset
  • Sven F Garbade
  • Florian Gleich
  • Andrea L Gropman
  • Pascale de Lonlay
  • Georg F Hoffmann
  • Angeles Garcia-Cazorla
  • Sandesh C S Nagamani
  • Matthias R Baumgartner
  • Andreas Schulze
  • Dries Dobbelaere
  • Marc Yudkoff
  • Stefan Kölker
  • Matthias Zielonka
  • Urea Cycle Disorders Consortium (UCDC)
  • Allan Meldgaard Lund (Medlem af forfattergruppering)
Vis graf over relationer

Low protein diet and sodium or glycerol phenylbutyrate, two pillars of recommended long-term therapy of individuals with urea cycle disorders (UCDs), involve the risk of iatrogenic growth failure. Limited evidence-based studies hamper our knowledge on the long-term effects of the proposed medical management in individuals with UCDs. We studied the impact of medical management on growth and weight development in 307 individuals longitudinally followed by the Urea Cycle Disorders Consortium (UCDC) and the European registry and network for Intoxication type Metabolic Diseases (E-IMD). Intrauterine growth of all investigated UCDs and postnatal linear growth of asymptomatic individuals remained unaffected. Symptomatic individuals were at risk of progressive growth retardation independent from the underlying disease and the degree of natural protein restriction. Growth impairment was determined by disease severity and associated with reduced or borderline plasma branched-chain amino acid (BCAA) concentrations. Liver transplantation appeared to have a beneficial effect on growth. Weight development remained unaffected both in asymptomatic and symptomatic individuals. Progressive growth impairment depends on disease severity and plasma BCAA concentrations, but cannot be predicted by the amount of natural protein intake alone. Future clinical trials are necessary to evaluate whether supplementation with BCAAs might improve growth in UCDs.

OriginalsprogEngelsk
TidsskriftScientific Reports
Vol/bind10
Udgave nummer1
Sider (fra-til)11948
ISSN2045-2322
DOI
StatusUdgivet - 20 jul. 2020

ID: 62401739