Abstract:
:Even early-treated phenylketonuric patients suffer from phenylalanine-associated (mild) neuropsychological impairment. To date it is still unclear whether patients' deficits show a progression on ageing. This unsolved question seems to be an important aspect in the still ongoing debate about how long and how strictly the patients should be maintained on diet. Twenty early-treated (20 +/- 10, 9-30 days) adolescent phenylketonurics (10 boys, 10 girls) and 20 healthy controls, matched for age, sex and IQ, were investigated twice at a mean ages of 11 and 14 years for their IQ (Culture Fair Intelligence Test-Scale 2; CFT-20), fine motor abilities (Motor Performance Task), sustained (Test d2) and selective attention (Stroop-Task). At the first test, examinations revealed significant blood phenylalanine-correlated neuropsychological deficits in PKU patients. In spite of raised blood phenylalanine concentrations during the following 3 years and significantly elevated concurrent blood phenylalanine concentrations, the repeated measurements revealed a significant decrease of patients' deficits compared to controls. Clinical-neurological status of patients and controls was normal at both test times. The results indicate a decreased vulnerability of PKU-patients with respect to their neuropsychological functioning against elevated blood phenylalanine levels on ageing.
journal_name
J Inherit Metab Disjournal_title
Journal of inherited metabolic diseaseauthors
Weglage J,Pietsch M,Denecke J,Sprinz A,Feldmann R,Grenzebach M,Ullrich Kdoi
10.1023/a:1005587915468keywords:
subject
Has Abstractpub_date
1999-08-01 00:00:00pages
693-705issue
6eissn
0141-8955issn
1573-2665journal_volume
22pub_type
杂志文章abstract::Mannose phosphate isomerase MPI-CDG (formerly CDG-1b) is a potentially fatal inherited metabolic disease which is readily treatable with oral D-mannose. We retrospectively reviewed long-term outcomes of patients with MPI-CDG, all but one of whom were treated with D-mannose. Clinical, biological, and histological data ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1002/jimd.12289
更新日期:2020-11-01 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::Mitochondrial neurogastrointestinal encephalomyopathy (MNGIE) is an autosomal recessive disorder caused by mutations in the gene encoding thymidine phosphorylase and is characterized by external ophthalmoparesis, gastrointestinal dysmotility, leukoencephalopathy, and neuropathy. The availability of new therapeutic opt...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-011-9332-6
更新日期:2011-12-01 00:00:00
abstract::Patients with MPS II often present with limitations to functional mobility. With the advent of enzyme replacement therapy (ERT), robust assessment tools are important to assess response to treatment. The aim of this study was to see if the GAITRite™ system (electronic pressure sensitive walkway) could identify any cha...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-009-1103-2
更新日期:2009-12-01 00:00:00
abstract::A sensitive and selective analytical technique is described for the determination of N-acetylaspartic acid in body fluids using stable isotope dilution in combination with positive chemical ionization mass spectrometry with selected ion monitoring. Control mean and ranges have been established: in urine 19.5 and 6.6-3...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01799929
更新日期:1991-01-01 00:00:00
abstract::Methylmalonate (MMA) accumulates in the tissues of patients with methylmalonic acidaemia, who present severe neurological signs soon after birth and later mental retardation. Attempting to understand the pathophysiology of the disorder, we investigated the effects of MMA on brain glucose uptake, lactate release and CO...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800350
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Fabry disease, an X-linked lysosomal storage disorder, leads to multi-organ dysfunction, including cerebrovascular disease and psychological disorders. However, the prevalence and pattern of associated cognitive dysfunction is not well understood. OBJECTIVES:To investigate whether there is reliable evidence...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10545-013-9643-x
更新日期:2014-03-01 00:00:00
abstract::In this review, we describe transcranial electrical stimulation (tES) techniques currently being used in neuroscientific research, including transcranial direct current (tDCS), alternating current (tACS) and random noise (tRNS) stimulation techniques. We explain how these techniques are used and summarise the proposed...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/s10545-018-0181-4
更新日期:2018-07-13 00:00:00
abstract::We examined the value of the fasting plasma phenylalanine/tyrosine ratio obtained in an ordinary clinical setting for assessing the probability of being a heterozygote for hyperphenylalaninaemia. This biochemical test was found to be of little value in those with a high (66%) prior risk of heterozygosity, because it c...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF00711323
更新日期:1993-01-01 00:00:00
abstract::There is paucity of literature on dietary treatment in glycogen storage disease (GSD) type IV and formal guidelines are not available. Traditionally, liver transplantation was considered the only treatment option for GSD IV. In light of the success of dietary treatment for the other hepatic forms of GSD, we have initi...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1002/jimd.12339
更新日期:2020-12-17 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::Mitochondrial oxidative phosphorylation (OXPHOS) is fundamental in all aspects of cellular life in aerobic cells and organisms. It is therefore not surprising that a variety of diseases have been attributed to dysfunction of the OXPHOS enzymes. Assessment of OXPHOS in human samples has proved to be a difficult task ov...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1023/a:1024437201166
更新日期:2003-01-01 00:00:00
abstract::The activity (mean +/- SD) of galactose-1-phosphate uridyl transferase in two long-term lymphoid cell lines from Caucasian patients with transferase deficiency galactosaemia, a heterozygote, and eight normal subjects was 0, 78 and 168 +/- 55 nmol UDPG consumed (mg protein)-1h-1, respectively. Also, no activity was fou...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01799977
更新日期:1987-01-01 00:00:00
abstract::Optimum conditions for assay of human plasma beta-mannosidase activity were determined. Maximum activity was observed at pH 3.0-3.4, the apparent Km was 0.9 mmol L-1 and enzymatic hydrolysis was linear for at least 60 min. Assays were performed on plasma from two siblings with the recently described condition beta-man...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800067
更新日期:1987-01-01 00:00:00
abstract::We report a Brazilian girl who was diagnosed as having galactosialidosis (deficiency of protective protein/cathepsin A; PPCA deficiency; GS) at the age of 2 years 6 months during an extensive investigation for renal failure. She was found to have low levels of both β-galactosidase and α-neuraminidase in fibroblasts an...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-008-0730-3
更新日期:2008-12-01 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::Until recently, there have not been any confirmed reports of beta-mannosidase deficiency in man. We have now analysed urine from two patients with confirmed beta-mannosidase deficiency and have found Man-beta(1-4)GlcNAc concentrations of 65 and 73 mg/mmol creatinine. These levels are at least 12 times higher than thos...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01799685
更新日期:1990-01-01 00:00:00
abstract::The progress and extent of myelination can be assessed using magnetic resonance imaging (MRI). Myelination is delayed or diminished in several inherited metabolic abnormalities presenting in early life. Only minimal myelination of the CNS occurs in Pelizaeus-Merzbacher disease. Dysmyelination tends to produce fairly s...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1007/BF00711909
更新日期:1993-01-01 00:00:00
abstract::Garrod presented his concept of 'the inborn error of metabolism' in the 1908 Croonian Lectures to the Royal College of Physicians (London); he used albinism, alkaptonuria, cystinuria and pentosuria to illustrate. His lectures are perceived today as landmarks in the history of biochemistry, genetics and medicine. Garro...
journal_title:Journal of inherited metabolic disease
pub_type: 传,历史文章,杂志文章,评审
doi:10.1007/s10545-008-0984-9
更新日期:2008-10-01 00:00:00
abstract::A biochemical variant of argininosuccinate lyase deficiency, found in five individuals, is introduced. In comparison to classical patients, the variant cases of argininosuccinate lyase deficiency were characterized by residual enzyme activity as measured by the incorporation of [14C]citrulline into proteins. The five ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/a:1020108002877
更新日期:2002-09-01 00:00:00
abstract::We report on our 6-year experience of expanded newborn screening by tandem mass spectrometry in Tuscany (Italy), the first Italian Region to screen all newborns for more than 40 inborn errors of metabolism: organization, diseases observed and updates on methods to reduce false-positive and false-negative tests are des...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-008-0965-z
更新日期:2008-12-01 00:00:00
abstract::In recent years tremendous progress has been made with respect to the enzymology of the mitochondrial fatty acid beta-oxidation machinery and defects therein. Firstly, a number of new mitochondrial beta-oxidation enzymes have been identified, including very-long-chain acyl-CoA dehydrogenase (VLCAD) and mitochondrial t...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章,评审
doi:10.1023/a:1005504223140
更新日期:1999-06-01 00:00:00
abstract::In three untreated patients with phenylketonuria (PKU), three PKU and six hyperphenylalaninaemic (HPA) patients in good metabolic control, the kinetic constants of platelet in vitro uptake of [14C]serotonin (5HT) did not significantly differ from those in 12 control subjects matched for age. The platelet concentration...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01800371
更新日期:1988-01-01 00:00:00
abstract:BACKGROUND:One major problem of using hypercholesterolaemia alone as a primary criterion for diagnosing familial hypercholesterolaemia (FH) is that 15-40% of relatives may be misdiagnosed because plasma lipid levels in FH heterozygotes overlap with those in the general population. SETTING:General Hospital/University o...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-007-0563-5
更新日期:2007-04-01 00:00:00
abstract::The transmembrane domain recognition complex (TRC) targets cytoplasmic C-terminal tail-anchored (TA) proteins to their respective membranes in the endoplasmic reticulum (ER), Golgi, and mitochondria. It is composed of three proteins, GET4, BAG6, and GET5. We identified an individual with compound heterozygous missense...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1002/jimd.12249
更新日期:2020-09-01 00:00:00
abstract::Transcobalamin (transcobalamin II, TC) transports plasma vitamin B(12) (cobalamin, Cbl) into cells. TC deficiency is a rare autosomal recessive disorder causing intracellular Cbl depletion, which in turn causes megaloblastic bone marrow failure, accumulation of homocysteine and methylmalonic acid, and methionine deple...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-010-9074-x
更新日期:2010-06-01 00:00:00
abstract::The glycine uptake in cultured fibroblasts was studied in three children with non-ketotic hyperglycinaemia, one child with D-glyceric acidaemia and hyperglycinaemia and in six normal children, using an improved assay system giving individual protein correction. It was shown that all hyperglycinaemic children had norma...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF02338974
更新日期:1983-01-01 00:00:00
abstract::Untreated pregnancies and their outcomes were studied in 10 women with histidinaemia and their 26 pregnancies. The mean maternal assigned histidine level was 727+/-186 micromol/L (range 484-1,053). Six women had classic histidinaemia (assigned level >700 micromol/L) and the remaining four had mild (atypical) histidina...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1023/B:BOLI.0000028783.35805.dd
更新日期:2004-01-01 00:00:00
abstract::An adult patient with hereditary tyrosinaemia type I who developed renal failure is reported. She received a renal transplant at the age of 23 years. In childhood her kidney disease was dominated by multiple tubular defects with resulting hypophosphataemic rickets. Metabolic acidosis was the most prominent feature in ...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/BF01804389
更新日期:1991-01-01 00:00:00
abstract::Tetrahydrobiopterin (BH4) is an essential cofactor for the aromatic amino acid hydroxylases, alkylglycerol monooxygenase, and nitric oxide synthases (NOS). Inborn errors of BH4 metabolism lead to severe insufficiency of brain monoamine neurotransmitters while augmentation of BH4 by supplementation or stimulation of it...
journal_title:Journal of inherited metabolic disease
pub_type: 杂志文章
doi:10.1007/s10545-015-9909-6
更新日期:2016-03-01 00:00:00