نتایج جستجو برای: pku

تعداد نتایج: 1204  

Journal: :Social Science Research Network 2022

Background: Phenylketonuria (PKU) is one of the most common inherited metabolic disorders and first to be included on newborn screening. Even treated, it can impact quality life (QoL) due strict dietary management potential for neuropsychiatric symptoms including anxiety, depression, impaired executive functioning attention. This study aims learn about newest treatment PKU – pegvaliase, an enzy...

Journal: :PLoS ONE 2009
Neil Sidell Lijuan Hao Marzia Pasquali J. David McDonald

Phenylketonuria (PKU) is a metabolic disorder caused by impaired phenylalanine hydroxylase (PAH). This condition results in hyperphenylalaninemia and elevated levels of abnormal phenylalanine metabolites, among which is phenylacetic acid/phenylacetate (PA). In recent years, PA and its analogs were found to have anticancer activity against a variety of malignancies suggesting the possibility tha...

Journal: :Annales Nestle [English ed.] 2010
Erin L Macleod Denise M Ney

Phenylketonuria (PKU) is caused by deficient activity of the enzyme phenylalanine hydroxylase, needed to convert the essential amino acid (AA) phenylalanine (phe) to tyrosine. In order to prevent neurological damage, lifelong adherence to a low-phe diet that is restricted in natural foods and requires ingestion of a phe-free AA formula to meet protein needs is required. The goal of nutritional ...

Journal: :The lancet. Diabetes & endocrinology 2017
Francjan J van Spronsen Annemiek Mj van Wegberg Kirsten Ahring Amaya Bélanger-Quintana Nenad Blau Annet M Bosch Alberto Burlina Jaime Campistol Francois Feillet Maria Giżewska Stephan C Huijbregts Shauna Kearney Vincenzo Leuzzi Francois Maillot Ania C Muntau Fritz K Trefz Margreet van Rijn John H Walter Anita MacDonald

We developed European guidelines to optimise phenylketonuria (PKU) care. To develop the guidelines, we did a literature search, critical appraisal, and evidence grading according to the Scottish Intercollegiate Guidelines Network method. We used the Delphi method when little or no evidence was available. From the 70 recommendations formulated, in this Review we describe ten that we deem as havi...

Journal: :World journal of pediatrics : WJP 2009
Jian-Ying Zhan Yu-Feng Qin Zheng-Yan Zhao

BACKGROUND Neonatal screening is helpful to prevent serious disability and sufferings caused by congenital or inherited disease. This study was to review the status of neonatal screening for congenital hypothyroidism (CH) and phenylketonuria (PKU) in China. METHODS We analyzed data of neonatal screening for CH and PKU in the past two decades which were obtained from the national network of ne...

Journal: :Molecular genetics and metabolism 2011
Yoshitami Sanayama Hironori Nagasaka Masaki Takayanagi Toshihiro Ohura Osamu Sakamoto Tetsuya Ito Mika Ishige-Wada Hiromi Usui Makoto Yoshino Akira Ohtake Tohru Yorifuji Hirokazu Tsukahara Satoshi Hirayama Takashi Miida Mitsuru Fukui Yoshiyuki Okano

Few studies have looked at optimal or acceptable serum phenylalanine levels in later life in patients with phenylketonuria (PKU). This study examined the oxidative stress status of adolescents and adults with PKU. Forty PKU patients aged over fifteen years were enrolled, and were compared with thirty age-matched controls. Oxidative stress markers, anti-oxidant enzyme activities in erythrocytes,...

2017
Sean M. Bell Dan J. Wendt Yanhong Zhang Timothy W. Taylor Shinong Long Laurie Tsuruda Bin Zhao Phillip Laipis Paul A. Fitzpatrick

Phenylketonuria (PKU) is a genetic metabolic disease in which the decrease or loss of phenylalanine hydroxylase (PAH) activity results in elevated, neurotoxic levels of phenylalanine (Phe). Due to many obstacles, PAH enzyme replacement therapy is not currently an option. Treatment of PKU with an alternative enzyme, phenylalanine ammonia lyase (PAL), was first proposed in the 1970s. However, iss...

2011
Diego Andolina David Conversi Simona Cabib Antonio Trabalza Rossella Ventura Stefano Puglisi-Allegra Tiziana Pascucci

Although phenylketonuria (PKU) is the most common genetic cause of mental retardation, the cellular mechanisms underlying impaired brain function are still unclear. Using PAHenu2 mice (ENU2), the genetic mouse model of PKU, we previously demonstrated that high phenylalanine levels interfere with brain tryptophan hydroxylase activity by reducing the availability of serotonin (5-hydroxytryptamine...

Journal: :Clinica chimica acta; international journal of clinical chemistry 2006
Lourdes R Desviat Belén Pérez Magdalena Ugarte

BACKGROUND Multiplex ligation probe amplification (MLPA) is a sensitive and efficient technique for molecular diagnosis of diseases involving deletions or duplications of large genomic regions. In phenylketonuria (PKU), most of the mutant alleles correspond to missense mutations and large deletions have been scarcely identified. In this study, we report for the first time the use of MLPA analys...

Farideh Siedeen Brojani, Firozeh Jazayeri, Nor mohammad Qhiasvand,

SUMMARY Early detection and prompt diet therapy is essential for normal mental development of the phenylketonurics. In spite of the congenital metabolic defect, patients affected with classic PKU appear normal at birth and will develop serious mental retardation if untreated and cause much emotional, social and financial burdens on their families and the society. For these reasons, in develope...

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