Abstract:
:One of the issues to be resolved in phenylketonuria is whether patients with mild hyperphenylalaninemia need treatment, or in other words, in what patients treatment needs to be started. Do patients need treatment when phenylalanine concentrations in blood are >360 μmol/L or >600 μmol/L? This paper reviews the literature on the outcome of untreated patients with mild hyperphenylalaninemia to try to determine whether outcome is normal. The paper concludes that there is, in fact, only one paper that can be used to answer this question. Therefore, the question is whether we may rely on one paper to draw conclusions or whether more research is necessary to determine whether all patients with phenylalanine concentrations >360 μmol/L or all patients with phenylalanine concentrations >600 μmol/L require treatment.
journal_name
J Inherit Metab Disjournal_title
Journal of inherited metabolic diseaseauthors
van Spronsen FJdoi
10.1007/s10545-011-9283-ysubject
Has Abstractpub_date
2011-06-01 00:00:00pages
651-6issue
3eissn
0141-8955issn
1573-2665journal_volume
34pub_type
杂志文章,评审abstract::Menkes disease (MNK) is a lethal, X-linked recessive disorder of copper metabolism dominated by neurodegenerative symptoms and connective tissue disturbances. The incidence of MNK in Asia is not known. Most patients die by the age of 3 years if adequate treatment is not carried out. Early parenteral administration of ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-005-0473-3
更新日期:2005-01-01 00:00:00
abstract::We are constantly exposed to sources of agents that directly damage the genetic material. This exposure comes from environmental sources but also from within our own organisms. DNA damage occurs at a high frequency due to metabolic processes and environmental factors such as various exposures and the intake of food an...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1023/a:1015681929316
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVE:There is an urgent need for reliable and universally applicable outcome measures for children with mitochondrial diseases. In this study, we aimed to adapt the currently available Newcastle Paediatric Mitochondrial Disease Scale (NPMDS) to the International Paediatric Mitochondrial Disease Scale (IPMDS) durin...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,多中心研究
doi:10.1007/s10545-016-9948-7
更新日期:2016-09-01 00:00:00
abstract::Fabry disease (FD) is a multi-systemic X-linked lysosomal disorder caused by the deficient activity of α-galactosidase-A enzyme, which leads to accumulation of glycosphingolipids in various body tissues. The N215S mutation is a known variant of FD, with a late onset cardiac phenotype. Consensus guidelines acknowledged...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-017-0127-2
更新日期:2018-03-01 00:00:00
abstract::Carnitine palmitoyltransferase type I (CPT I) is unique among long-chain fatty acid oxidation enzymes in that there are two tissue-specific isoforms, 'hepatic' and 'muscle', which are encoded by two separate genes. The 'hepatic' isoform is expressed in liver, kidney and fibroblasts and at low levels in the heart, whil...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1005694320063
更新日期:2001-02-01 00:00:00
abstract::There is a failure of growth in hypoxanthine guanine phosphoribosyltransferase deficiency; slow weight gain is marked after the second year of age but is apparent in the birth weights of all eight of our patients for whom we have data. However, head growth and bone development are less affected than weight. A partial ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800063
更新日期:1987-01-01 00:00:00
abstract::After a brief overview on CDG, this workshop concentrated on the experience with (mostly) known CDG in a European country (the Czech Republic) and on the Australasian experience, on recent developments regarding congenital muscular dystrophies due to O-mannoslyglycan assembly defects, and on new presentations of CDG. ...
journal_title:Journal of inherited metabolic disease
pub_type: 共识发展会议,杂志文章,评审
doi:10.1023/b:boli.0000031221.44647.9e
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Cerebrotendinous xanthomatosis (CTX) is a rare genetic disorder, characterised by chronic diarrhoea, xanthomas, cataracts, and neurological deterioration. CTX is caused by CYP27A1 deficiency, which leads to abnormal cholesterol and bile acid metabolism. Urinary bile acid profiling (increased m/z 627: glucuro...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1002/jimd.12219
更新日期:2020-07-01 00:00:00
abstract::Mucopolysaccharidosis type II (MPS II or Hunter syndrome) is a progressive, multisystemic disease caused by a deficiency of iduronate-2-sulfatase. Patients with the severe form of the disease have cognitive impairment and typically die in the second decade of life. Patients with the less severe form do not experience ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-009-1119-7
更新日期:2009-08-01 00:00:00
abstract::When screening for carnitine uptake disorder (CUD), the New Zealand (NZ) newborn screening (NBS) service identified infants as screen-positive if they had initial and repeat free carnitine (C0) levels of less than 5.0 μmol/L. Since 2006, the NBS service has identified two infants with biochemical and genetic features ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1002/jimd.12030
更新日期:2019-01-01 00:00:00
abstract::Using Guthrie Biological Inhibition Assay, 4963 mentally retarded individuals housed in 31 cities and towns across the country were screened for PKU. The average prevalence of classical PKU in the study population was 2.1%, which is higher than that reported for most mentally retarded populations in other countries pr...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-009-1222-9
更新日期:2009-12-01 00:00:00
abstract::Fabry disease is an X-linked glycosphingolipid storage disorder caused by a deficiency of alpha-galactosidase A. Affected patients experience debilitating neuropathic pain and have premature mortality due to renal failure, cardiovascular disease or cerebrovascular complications. The disease may be X-linked dominant, s...
journal_title:Journal of inherited metabolic disease
pub_type: 临床试验,杂志文章
doi:10.1023/b:boli.0000005658.14563.77
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Arginase 1 (ARG1) deficiency is a rare urea cycle disorder (UCD). This hypothesis-generating study explored clinical phenotypes, metabolic profiles, molecular genetics, and treatment approaches in a cohort of children and adults with ARG1 deficiency to add to our understanding of the underlying pathophysiolo...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-016-9928-y
更新日期:2016-05-01 00:00:00
abstract::Biotinidase deficiency is an autosomal recessive metabolic disorder included in many newborn screening programmes. Prior to the introduction of screening for biotinidase deficiency in Sweden in 2002, the disorder was almost unknown, with only one case diagnosed clinically. Biotinidase activity was measured in dried bl...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-010-9065-y
更新日期:2010-12-01 00:00:00
abstract::This study reports three novel mutations of the methionine adenosyltransferase (MAT) lA gene and confirms that hyperhomocysteinaemia may be a characteristic finding in MAT I/III deficiency. Thus, MAT I/III deficiency is important in the differential diagnoses of hyperhomocysteinaemia, which may lead to clinical compli...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-005-4497-5
更新日期:2005-01-01 00:00:00
abstract::Four neonates with a positive phenylalanine screening test (Phe concentrations between 258 and 1250 micromol/L) were investigated further to differentiate between phenylalanine hydroxylase (PAH) deficiency and variant hyperphenylalaninaemia (HPA) forms. In patients 1 and 2 a tetrahydrobiopterin (BH4) load caused a sig...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1010596317296
更新日期:2001-06-01 00:00:00
abstract::We report a retrospective electron-microscopical study of liver biopsies and fibroblast cultures of 19 patients with congenital disorders of glycosylation (CDG) of different subtypes. A constant finding in liver biopsies of all CDG-I cases was that of abnormal lysosomal lamellar inclusions in the hepatocytes, which we...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1024023429680
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Hearing loss (HL) is a well-known feature of Fabry disease (FD). Its presence and characteristics have mainly been studied in adult patients, while only limited data are available on the presence and degree of HL in children with FD. This prompted us to study hearing sensitivity in pediatric FD patients. ME...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-017-0051-5
更新日期:2017-09-01 00:00:00
abstract::We describe two patients affected by Barth syndrome. Their symptoms became manifest on respectively the third and first day of their lives. Clinical presentation included poor sucking, lethargy, hypotonia, hypothermia and cardiomyopathy. Laboratory findings such as hypoglycaemia, metabolic acidosis, elevated transamin...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-006-0388-7
更新日期:2006-10-01 00:00:00
abstract::Gaucher disease is a lysosomal storage disorder caused by a deficiency of the enzyme acid beta-glucosidase. The most prevalent mutant genotype in type I Gaucher disease, N370S/N370S, is commonly thought to confer a mild phenotype presenting in adulthood. To characterize a subset of more severely affected N370S homozyg...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-008-0868-z
更新日期:2008-12-01 00:00:00
abstract::Metachromatic leukodystrophy (MLD) is an autosomal recessive disorder resulting from the inability to metabolize sulphatide, an important component of myelin. Although there is significant clinical variability between patients, most have the late-infantile form. It is one of the most common lysosomal disorders involvi...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF00710424
更新日期:1995-01-01 00:00:00
abstract::Lysinuric protein intolerance (LPI) is a disorder of dibasic amino acid transport secondary to mutation of the SLC7A7 gene characterized by renal failure, pulmonary alveolar proteinosis, lupus-like autoimmune symptoms and usually increased plasma citrulline. In order to better understand the underlying mechanism, we s...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-005-5954-x
更新日期:2005-01-01 00:00:00
abstract::Neurological manifestations in Lesch-Nyhan disease (LND) are attributed to the effect of hypoxanthine-guanine phosphoribosyltransferase (HPRT) deficiency on the nervous system development. HPRT deficiency causes the excretion of increased amounts of hypoxanthine into the extracellular medium and we hypothesized that H...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-015-9854-4
更新日期:2015-11-01 00:00:00
abstract::Morphometry of peroxisomes is performed on electron micrographs of ultrathin sections after staining for catalase activity with diaminobenzidine; specific peroxisomal labelling is preferred to guarantee recognition. Peroxisomal number, size, axial ratio and volume parameters are determined and compared to control valu...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF00711438
更新日期:1995-01-01 00:00:00
abstract::Recent studies have identified a role for supraphysiological gamma-aminobutyric acid (GABA) in the regulation of mechanistic target of rapamycin (mTOR), a protein kinase with pleiotropic roles in cellular development and homeostasis, including integration of growth factors and nutrient sensing and synaptic input in ne...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-016-9959-4
更新日期:2016-11-01 00:00:00
abstract:UNLABELLED:In pilot studies of the usefulness of solid state nuclear magnetic resonance spectroscopy in characterizing chemical and molecular structural effects of alkaptonuria on connective tissue, we have obtained (13) C spectra from articular cartilage from an AKU patient. An apparently normal anatomical location yi...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-011-9373-x
更新日期:2011-12-01 00:00:00
abstract:OBJECTIVE:To analyse diagnostic value of somato-sensory evoked potentials (SEP), magnetic resonance imaging (MRI), and clinical neurological examination in the decision for decompression surgery in mucopolysaccharidosis (MPS) VI patients with craniocervical cord compression (CCJ). METHODS:We retrospectively analysed n...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-013-9591-5
更新日期:2013-11-01 00:00:00
abstract::Hypoglycaemia induced by fructose administration is one of the diagnostic clues to fructose-1,6-diphosphatase (FDPase) deficiency (McKusick 229700). However, the pathological mechanism of this reactive hypoglycaemia is not fully known. This paper describes two siblings with FDPase deficiency, diagnosed enzymatically i...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800012
更新日期:1992-01-01 00:00:00
abstract::The substrate O-(alpha-L-idopyranosyluronic acid-2-sulphate)-(1 leads to 4)-2,5-anhydro-D-(3H-1) mannitol-6-sulphate was used at a final concentration of 50 mmol/l to measure the alpha-L-idurono-2-sulphate sulphatase activities of cell extracts, serum and amniotic fluid. Activities were measured after dialysis against...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800738
更新日期:1983-01-01 00:00:00
abstract:OBJECTIVES:To study the incidence of galactosaemia in the state of São Paulo and the benefit/cost (B/C) ratio of the introduction of neonatal screening for galactosaemia, comparing it with a selective approach. METHODS:An enzymatic-colorimetric assay was used for the screening of total galactose (TG) in a sample of 10...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-009-1112-1
更新日期:2009-12-01 00:00:00