Abstract：
:Dihydropyrimidinase deficiency is a rare autosomal recessive disease affecting the second step of pyrimidine degradation. It is caused by mutations in the DPYS gene. Only approximately 30 cases have been reported to date, with a phenotypical variability ranging from asymptomatic to severe neurological illness. We report a case of dihydropyrimidinase deficiency incidentally detected by urine metabolome analysis. Gas chromatography-mass spectrometry-based urine metabolomics demonstrated significant elevations of dihydrouracil and dihydrothymine, which were subsequently confirmed by a quantitative analysis using liquid chromatography-tandem mass spectrometry. Genetic testing of the DPYS gene revealed two mutations: a novel mutation (c.175G > T) and a previously reported mutation (c.1469G > A). Dihydropyrimidinase deficiency is probably underdiagnosed, considering its wide phenotypical variability, nonspecific neurological presentations, and an estimated prevalence of 2/20,000. As severe 5-fluorouracil-associated toxicity has been reported in patients and carriers of congenital pyrimidine metabolic disorders, urinary pyrimidine analysis should be considered for those who will undergo 5-fluorouracil treatment.
journal_name
Brain Devjournal_title
Brain & developmentauthors
Tsuchiya H,Akiyama T,Kuhara T,Nakajima Y,Ohse M,Kurahashi H,Kato T,Maeda Y,Yoshinaga H,Kobayashi Kdoi
10.1016/j.braindev.2018.10.005subject
Has Abstractpub_date
2019-03-01 00:00:00pages
280-284issue
3eissn
0387-7604issn
1872-7131pii
S0387-7604(18)30381-4journal_volume
41pub_type
杂志文章abstract：BACKGROUND:Germline mutations of the PTEN gene are responsible for several PTEN hamartoma tumor syndromes. They are also implicated as a cause of macrocephaly and mild to severe developmental delay, regardless of the presence or absence of hamartomas in childhood. Nevertheless, because of limited information, the clini...
journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2018.04.008
更新日期：2018-09-01 00:00:00
abstract：:Organic acidemias (OAs) have been detected worldwide in symptomatic patients using gas chromatography mass spectrometry. We diagnosed 188 Asian cases of OAs by analysis of urinary organic acids and investigated their clinical onset and outcome. Methylmalonic acidemia (MMA) was most common (74 cases), followed by propi...
journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2004.04.004
更新日期：2005-01-01 00:00:00
abstract：:Neuromyelitis optica (NMO) is an inflammatory demyelinating disease with a poor prognosis that is characterized by inflammatory optic neuritis and myelitis. Although it is commonly misdiagnosed as multiple sclerosis (MS), distinguishing NMO from MS is important, as therapeutic approaches approved for MS are ineffectiv...
journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2014.03.015
更新日期：2015-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2017.09.004
更新日期：2018-02-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2006.02.002
更新日期：2006-09-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2010.04.002
更新日期：2011-01-01 00:00:00
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journal_title：Brain & development
pub_type： 临床试验,杂志文章
doi：10.1016/s0387-7604(99)00036-4
更新日期：1999-09-01 00:00:00
abstract：:Rett syndrome (RTT) is a neurodevelopmental disorder that is one of the most common causes of mental retardation in females. RTT diagnosis is based on distinct clinical criteria. We describe here a female patient with severe phenotype of congenital variant RTT. The patient originally presented with severe developmenta...
journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2011.09.014
更新日期：2012-08-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2012.04.002
更新日期：2013-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1016/s0387-7604(85)80030-9
更新日期：1985-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2011.08.007
更新日期：2012-05-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2017.07.004
更新日期：2018-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2019.08.013
更新日期：2020-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2015.12.005
更新日期：2016-06-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/s0387-7604(86)80117-6
更新日期：1986-01-01 00:00:00
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journal_title：Brain & development
pub_type： 临床试验,杂志文章
doi：10.1016/S0387-7604(03)00170-0
更新日期：2004-08-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2008.04.006
更新日期：2009-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/s0387-7604(12)80282-8
更新日期：1992-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2006.08.004
更新日期：2007-04-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
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更新日期：2017-03-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2005.10.007
更新日期：2006-06-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章,评审
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更新日期：2013-10-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
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更新日期：2004-01-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/j.braindev.2009.03.013
更新日期：2010-03-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/s0387-7604(00)00117-0
更新日期：2000-06-01 00:00:00
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journal_title：Brain & development
pub_type： 杂志文章,评审
doi：10.1016/0387-7604(93)90060-l
更新日期：1993-05-01 00:00:00
abstract：:Although a large amount of cholesterol is known to be needed for brain maturation and differentiation, cholesterol metabolism during these periods remains unclear. To elucidate the developmental regulation of cholesterol metabolism in the brain, we investigated the expression of 3-hydroxy-3-methyglutaryl-coenzyme A (H...
journal_title：Brain & development
pub_type： 杂志文章
doi：10.1016/s0387-7604(00)00129-7
更新日期：2000-08-01 00:00:00
abstract：:This paper reports 504 cases admitted with acute polyradiculoneuritis (AP) to Beijing Children's Hospital from 1975 through 1984. 343 of the 504 cases (68.1%) with AP had respiratory paralysis and in 198/504 (39.3%), tracheotomy was performed. In this study, none of the patients received steroids. We attempted to asse...
journal_title：Brain & development
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：OBJECTIVE:This study was performed to evaluate the efficacy and safety of intravenous phenobarbital (PB) for benign convulsions with mild gastroenteritis (CwG). METHODS:A randomized, single-blind, placebo-controlled trial involving patients with CwG was conducted at the Japanese Red Cross Society Himeji Hospital. Pati...
journal_title：Brain & development
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.braindev.2019.03.014
更新日期：2019-08-01 00:00:00
