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http://dx.doi.org/10.1016/s0031-3955(16)32124-1 | DOI Listing |
Metab Brain Dis
January 2025
Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Avenida Ipiranga, 2752, Porto Alegre, CEP 90610-000, RS, Brazil.
Phenylketonuria is a genetic disorder characterized by high phenylalanine levels, the main toxic metabolite of the disease. Hyperphenylalaninemia can cause neurological impairment. In order to avoid this symptomatology, patients typically follow a phenylalanine-free diet supplemented with a synthetic formula that provides essential amino acids, including L-carnitine.
View Article and Find Full Text PDFJ Pharmacokinet Pharmacodyn
January 2025
PTC Therapeutics, Warren, NJ, USA.
Sepiapterin is an exogenously synthesized new chemical entity that is structurally equivalent to endogenous sepiapterin, a biological precursor of tetrahydrobiopterin (BH), which is a cofactor for phenylalanine hydroxylase. Sepiapterin is being developed for the treatment of hyperphenylalaninemia in pediatric and adult patients with phenylketonuria (PKU). This study employed concentration-QT interval analysis to assess QT prolongation risk following sepiapterin treatment.
View Article and Find Full Text PDFJ Cachexia Sarcopenia Muscle
February 2025
Department of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité, Berlin, Germany.
Background: Despite a phenylalanine (Phe) restrictive diet, most adult patients with 'classical' phenylketonuria (PKU) maintain life-long Phe concentrations above the normal range and receive tyrosine (Tyr) and protein-enriched diets to maintain acceptable concentrations and ensure normal development. While these interventions are highly successful in preventing adverse neuropsychiatric complications, their long- term consequences are incompletely explored. We observed early cardiomyopathic characteristics and associated hemodynamic changes in adult PKU patients and present here the results of a longitudinal evaluation of cardiac phenotype.
View Article and Find Full Text PDFInt J Rheum Dis
January 2025
Division of Rheumatology, Department of Physical Medicine and Rehabilitation, Erciyes University School of Medicine, Kayseri, Turkey.
A 19-year-old male patient with phenylketonuria (PKU) was presented to our clinic with complaints of left hip pain and fever for one week. Physical examination and MRI examination showed findings compatible with pyogenic sacroiliitis and an abscess in the left iliopsoas muscle. The patient's clinical and radiological findings improved markedly with empirical antibiotic treatment.
View Article and Find Full Text PDFEur J Pediatr
December 2024
Division of Child Neurology, Department of Paediatrics, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.
Unlabelled: Phenylalanine (PA) levels below 360 µmol/L do not require treatment; however, cognitive deficits have been observed in patients with elevated PA levels, necessitating a safe upper limit for treatment and therapeutic objectives. The main purpose of this study is to evaluate the correlation between developmental assessments (Denver Developmental Screening Test-II [DDST-II] and Ankara Developmental Screening Inventory [ADSI]) and electroencephalogram (EEG) findings with blood PA levels and genotypic data in non-phenylketonuria mild Hyperphenylalaninemia (HPA) patients, to re-evaluate their treatment status based on potential adverse outcomes. This study encompassed 40 patients aged 1-5 years diagnosed with HPA and not on treatment, identified through initial blood PA levels, and monitored for a minimum of 1 year on an unrestricted diet.
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