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- Title
Phenylketonuria Pathophysiology: on the Role of Metabolic Alterations.
- Authors
Schuck, Patrícia Fernanda; Malgarin, Fernanda; Cararo, José Henrique; Cardoso, Fabiola; Streck, Emilio Luiz; Ferreira, Gustavo Costa
- Abstract
Phenylketonuria (PKU) is an inborn error of phenylalanine (Phe) metabolism caused by the deficiency of phenylalanine hydroxylase. This deficiency leads to the accumulation of Phe and its metabolites in tissues and body fluids of PKU patients. The main signs and symptoms are found in the brain but the pathophysiology of this disease is not well understood. In this context, metabolic alterations such as oxidative stress, mitochondrial dysfunction, and impaired protein and neurotransmitters synthesis have been described both in animal models and patients. This review aims to discuss the main metabolic disturbances reported in PKU and relate them with the pathophysiology of this disease. The elucidation of the pathophysiology of brain damage found in PKU patients will help to develop better therapeutic strategies to improve quality of life of patients affected by this condition.
- Subjects
PHENYLKETONURIA; PHENYLALANINE metabolism; PHENYLALANINE hydroxylase
- Publication
Aging & Disease, 2015, Vol 6, Issue 5, p390
- ISSN
2152-5250
- Publication type
Article
- DOI
10.14336/AD.2015.0827