phenylketonurias/céphalée

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Neurological manifestations in adults with phenylketonuria: new cases and review of the literature.

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Phenylketonuria (PKU) is a rare autosomal recessive disease characterised by high plasma phenylalanine levels inducing, if untreated, serious neurological manifestations in children but also, rarely, in adults who stopped their diet. The objective of the study was to describe the

Danger of high-protein dietary supplements to persons with hyperphenylalaninaemia.

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A 16-year-old adolescent with mild hyperphenylalaninaemia was given a high-protein 'body building' supplement twice daily, causing headaches, decreased school performance and mild depression. All symptoms disappeared after cessation of the supplement. The phenylalanine hydroxylase mutation

Long-term safety and efficacy of pegvaliase for the treatment of phenylketonuria in adults: combined phase 2 outcomes through PAL-003 extension study.

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BACKGROUND Deficiency of phenylalanine hydroxylase causes phenylketonuria (PKU) with elevated phenylalanine (Phe) levels and associated neuropsychiatric and neurocognitive symptoms. Pegvaliase (PEGylated phenylalanine ammonia lyase) is an investigational agent to lower plasma Phe in adults with PKU.

Sapropterin: a review of its use in the treatment of primary hyperphenylalaninaemia.

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Sapropterin dihydrochloride (Kuvan), hereafter referred to as sapropterin, is a synthetic formulation of the active 6R-isomer of tetrahydrobiopterin, a naturally occurring cofactor for phenylalanine hydroxylase. In the EU, sapropterin is approved for the treatment of hyperphenylalaninaemia in

Pegvaliase for the treatment of phenylketonuria: Results of a long-term phase 3 clinical trial program (PRISM).

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BACKGROUND Phenylketonuria (PKU) is caused by phenylalanine hydroxylase (PAH) deficiency that results in phenylalanine (Phe) accumulation. Pegvaliase, PEGylated recombinant Anabaena variabilis phenylalanine ammonia lyase (PAL), converts Phe to trans-cinnamic acid and ammonia, and is a potential

Pegvaliase for the treatment of phenylketonuria: Results of the phase 2 dose-finding studies with long-term follow-up

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Background: Phenylketonuria (PKU) is characterized by a deficiency in phenylalanine hydroxylase (PAH) that may lead to elevated blood phenylalanine (Phe) and significant neurocognitive and neuropsychological comorbidities. Pegvaliase

Pegvaliase for the treatment of phenylketonuria: A pivotal, double-blind randomized discontinuation Phase 3 clinical trial.

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BACKGROUND Pegvaliase is a recombinant Anabaena variabilis phenylalanine ammonia lyase (PAL) enzyme under investigation for treatment of adult phenylketonuria (PKU). This manuscript describes results of a randomized discontinuation trial (RDT) designed to evaluate the effects of pegvaliase treatment

Phenylketonuria in adulthood: a collaborative study.

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During 1967-1983, the Maternal and Child Health Division of the Public Health Services funded a collaborative study of 211 newborn infants identified on newborn screening as having phenylketonuria (PKU). Subsequently, financial support was provided by the National Institute of Child Health and Human

Permanent chemical phenylketonuria and a normal phenylalanine tolerance in two sisters with a normal mental development.

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A positive ferric chloride reaction was found at routine examination of the urine of a 14 year old mentally normal girl, admitted for complaints of headache and other meningitis-like symptoms. It turned out that she excreted permanently increased amounts of phenylpyruvic, phenyllactic and

Aspartame: review of safety.

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Over 20 years have elapsed since aspartame was approved by regulatory agencies as a sweetener and flavor enhancer. The safety of aspartame and its metabolic constituents was established through extensive toxicology studies in laboratory animals, using much greater doses than people could possibly

Phenylethylamine in neuropsychiatric disorders.

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Phenylethylamine is an endogenous neuroamine conceptualized as the body's natural amphetamine. PEA has been suggested to play a role in the etiology of several neuropsychiatric disorders. Increased PEA turnover in phenylketonuria contributes to the pathophysiology of this condition. Depressed and

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