Abstract:
:We report a 5-year-old child carrying polymerase gamma (POLG1) mutations, but strikingly normal oxidative phosphorylation analysis in muscle, fibroblasts and liver. Mutations in POLG1 have so far been described in children with severe combined oxidative phosphorylation (OXPHOS) deficiencies and with the classical Alpers-Huttenlocher syndrome. The patient presented with a delayed psychomotor development and ataxia during the first two years of life. From the third year of life he developed epilepsy and regression in development, together with symptoms of visual impairment and sensorineuronal deafness. Cerebrospinal fluid showed elevated lactic acid and protein concentrations. An elder brother had died due to combined OXPHOS deficiencies. Despite the clinical similarity with the elder brother, except for liver involvement, the OXPHOS system analysis in a frozen muscle biopsy was normal. For this reason a fresh muscle biopsy was performed, which has the advantage of the possibility of measuring the substrate oxidation rates and ATP production, part of the mitochondrial energy-generating system (MEGS). During the same session, biopsies of liver and fibroblasts were taken. These three tissues showed normal measurements of the MEGS capacity. Based on the phenotype of Alpers-Huttenlocher syndrome in the elder brother, we decided to screen the POLG1 gene. Mutation analysis showed compound heterozygosity with two known mutations, A467T and G848S. The normal MEGS capacity in this patient expands the already existing complexity and heterogeneity of the childhood POLG1 patients and, on the basis of the high frequency of POLG1 mutations in childhood, warrants a liberal strategy with respect to mutation analysis.
journal_name
J Inherit Metab Disjournal_title
Journal of inherited metabolic diseaseauthors
de Vries MC,Rodenburg RJ,Morava E,Lammens M,van den Heuvel LP,Korenke GC,Smeitink JAdoi
10.1007/s10545-008-0871-4subject
Has Abstractpub_date
2008-12-01 00:00:00pages
S299-302eissn
0141-8955issn
1573-2665journal_volume
31 Suppl 2pub_type
杂志文章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::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::Tandem mass spectrometry (MS/MS) is a highly sensitive and specific technique. Thanks to the development of triple quadrupole analyzers, it is becoming more widely used in laboratories working in the field of inborn errors of metabolism. We review here the state of the art of this technique applied to the diagnosis of...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/s10545-017-0126-3
更新日期:2018-05-01 00:00:00
abstract::In a few rare diseases, specialised studies in cerebrospinal fluid (CSF) are required to identify the underlying metabolic disorder. We aimed to explore the possibility of detecting key synaptic proteins in the CSF, in particular dopaminergic and gabaergic, as new procedures that could be useful for both pathophysiolo...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-010-9256-6
更新日期:2011-04-01 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
abstract::A family of Maltese dogs with malonic aciduria is reported. The propositus presented at 3 years of age with episodes of seizures and stupor with hypoglycaemia, acidosis, and ketonuria. Urinary organic acid assays showed elevated malonic acid without elevation of methylmalonic acid. Cultured fibroblasts had normal malo...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1005635306257
更新日期:1999-12-01 00:00:00
abstract::Sandhoff disease is caused by the defective activity of the lysosomal enzyme beta-hexosaminidase, resulting in accumulation of the glycolipids, GA2 and GM2. Niemann-Pick A/B disease is caused by the defective activity of lysosomal acid sphingomyelinase resulting in sphingomyelin accumulation. Pulmonary complications h...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/b:boli.0000042958.22066.6c
更新日期:2004-01-01 00:00:00
abstract::Urea and creatinine were measured by Kodak Ektachem methods and methylmalonic acid by stable-isotope gas chromatography-mass spectrometry in 24 urine samples from patients with methylmalonic acidaemia. For each sample analyses were performed both directly on the liquid urine and on an aliquot which had been blotted on...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01799839
更新日期:1996-01-01 00:00:00
abstract::Neuropsychological assessment is essential in providing documentation of the untreated natural history of storage diseases associated with dementia and quantifying the effectiveness of treatment on central nervous system function. Baseline characterization and outcome of bone marrow transplantation (BMT) for three leu...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF00710053
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Maple syrup urine disease (MSUD) is a rare disease that requires a protein-restricted diet for successful management. Little is known, however, about the psychosocial outcome of MSUD patients. This study investigates the relationship between metabolic and clinical parameters and psychosocial outcomes in a co...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-017-0083-x
更新日期:2017-11-01 00:00:00
abstract::The mechanism of formation of extracellular fluid is first described, followed by an explanation of the relation between osmotic force, reflection coefficient and molecular size. The possible mechanism of brain extracellular fluid formation is then proposed in relation to the restriction offered by the blood-brain bar...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF00711896
更新日期:1993-01-01 00:00:00
abstract::Niemann-Pick disease type C2 (NPC2) is caused by the inherited deficiency of a lysosomal cholesterol transport protein, NPC2 protein. Many cases of NPC2 present in early infancy with inflammatory lung disease, with subsequent severe neurological disease and death in early childhood. This disease is theoretically corre...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-010-9060-3
更新日期:2010-12-01 00:00:00
abstract::The CLN3 gene is involved in juvenile neuronal ceroid lipofuscinosis (JNCL), or Batten-Spielmeyer-Vogt disease, a severe hereditary neurodegenerative lysosomal storage disorder characterized by progressive disease pathology, with loss of vision as the first symptom. Another characteristic of JNCL is the lysosomal accu...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-005-0125-7
更新日期:2005-01-01 00:00:00
abstract::There are a number of reasons for choosing ornithine transcarbamylase (OTC) deficiency as a candidate for gene therapy: the gene has been cloned; the disorder is relatively common; the current clinical outcome is poor; and there are authentic animal models. In considering the development of gene therapy for OTC defici...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1005369926784
更新日期:1998-01-01 00:00:00
abstract:INTRODUCTION:Alpha-1,3-glucosyltransferase congenital disorder of glycosylation (ALG6-CDG) is a congenital disorder of glycosylation. The original patients were described with hypotonia, developmental disability, epilepsy, and increased bleeding tendency. METHODS:Based on Euroglycan database registration, we approache...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-016-9945-x
更新日期:2016-09-01 00:00:00
abstract::L-2-hydroxyglutaric aciduria (L-2-HGA) is a metabolic disease with an autosomal recessive mode of inheritance. It was first reported in 1980. Patients with this disease have mutations in both alleles of the L2HDGH gene. The clinical presentation of individuals with L-2-HGA is somewhat variable, but affected individual...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,多中心研究
doi:10.1007/s10545-008-0855-4
更新日期:2008-12-01 00:00:00
abstract::We report molecular analysis of thiamin-responsive pyruvate dehydrogenase complex (PDHC) deficiency in a patient with an X-linked form of Leigh syndrome. PDHC activity in cultured lymphoblastoid cells of this patient and his asymptomatic mother were normal in the presence of a high thiamin pyrophosphate (TPP) concentr...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1005305614374
更新日期:1997-08-01 00:00:00
abstract::A brief outline of the known biochemical roles of manganese and chromium is given before the problems of determining human trace metal status are discussed. The factors predisposing to trace metal deficiency are reviewed but particular emphasis is placed upon those which alter the bioavailability of essential trace me...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF01811319
更新日期:1983-01-01 00:00:00
abstract:AIM:This study reports the first evaluation of therapeutic response in Romanian patients with Gaucher disease type I, after therapy with Cerezyme recently became available in our country. PATIENTS AND METHODS:24 patients (11-50 years) received Cerezyme 20-60 U/kg every two weeks for at least 18 months. Haemoglobin, pl...
journal_title:Journal of inherited metabolic disease
pub_type: 临床试验,杂志文章
doi:10.1007/s10545-007-0621-z
更新日期:2007-10-01 00:00:00
abstract:: ...
journal_title:Journal of inherited metabolic disease
pub_type: 社论
doi:10.1007/s10545-018-00252-y
更新日期:2018-11-01 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::In patients with cerebro-hepato-renal (Zellweger) syndrome, the absence of peroxisomes results in an impairment of metabolic processes in which peroxisomes are normally involved. These include the catabolism of very long chain (greater than C22) fatty acids, the biosynthesis of ether-phospholipids and of bile acids, t...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF01812845
更新日期:1987-01-01 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::Among the many disorders of fatty acid beta-oxidation known today, the disorders of long-chain fatty acid oxidation are the most severe and life-threatening. One remarkable abnormality, not observed in, for instance, medium-chain acyl-CoA dehydrogenase deficiency, is the moderate to severe lactic acidaemia in long-cha...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1005480516801
更新日期:1998-08-01 00:00:00
abstract::Gonadal function was followed in 26 females and 12 males with galactosaemia due to deficiency of the enzyme galactose-1-phosphate (Gal-1-P) uridyl transferase over a 4 year period. Gonadal function was normal in males, but all females except two had evidence of acquired ovarian failure. Twelve females with ovarian fai...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01799450
更新日期:1986-01-01 00:00:00
abstract::Congenital disorders of glycosylation (CDG) are a rapidly growing family comprising >100 genetic diseases. Some 25 CDG are pure O-glycosylation defects. Even among this CDG subgroup, phenotypic diversity is broad, ranging from mild to severe poly-organ/system dysfunction. Ophthalmic manifestations are present in 60% o...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1002/jimd.12025
更新日期:2019-01-01 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::Hydroxyproline has the same integer molecular weight as leucine and isoleucine and is quantified with these by tandem mass spectrometry. An infant was diagnosed with hyperhydroxyprolinaemia following further evaluation of an elevated "leucine" level in newborn screening by tandem mass spectrometry. ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/b:boli.0000045839.08631.9d
更新日期:2004-01-01 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::2-Methyl-3-hydroxybutyryl-CoA dehydrogenase (EC 1.1.1.178) deficiency is a recently described defect of isoleucine catabolism. The disorder is characterized by normal early development followed by a progressive loss of mental and motor skills. Deterioration may be rapid or may follow a slower decline with a possible s...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1021251202287
更新日期:2002-10-01 00:00:00