Contribution of tandem mass spectrometry to the diagnosis of lysosomal storage disorders.

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

authors： Cooper A,Hatton C,Sardharwalla IB

更新日期：1987-01-01 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

authors： la Marca G,Malvagia S,Casetta B,Pasquini E,Donati MA,Zammarchi E

更新日期：2008-12-01 00:00:00

abstract：:Concentrations of free dolichol, total non-phosphorylated dolichol, and total phosphorylated dolichol were measured in autopsy specimens of brain and liver from ceroid-lipofuscinosis (CL) and control cases. Levels of non-phosphorylated dolichol, mainly as free dolichol, were increased approximately two-fold in late-in...

journal_title：Journal of inherited metabolic disease

authors： Hall NA,Patrick AD

更新日期：1985-01-01 00:00:00

abstract：:Techniques for studying metabolic events in vivo in patients with inborn errors are reviewed. Loading or provocation tests that have been used widely are insensitive and frequently non-specific. Compounds labelled with stable isotopes can be used to study enzyme kinetics and substrate turnover, providing more detailed...

journal_title：Journal of inherited metabolic disease

authors： Leonard JV,Thompson GN

更新日期：1991-01-01 00:00:00

abstract：:Recent studies have identified a group of patients with cytochrome oxidase (COX) deficiency presenting in infancy associated with a deficiency of mtDNA in muscle or other affected tissue (Moraes et al 1991). We used a novel approach to compare the level of mitochondrial (mtDNA) compared to nuclear DNA in skeletal musc...

journal_title：Journal of inherited metabolic disease

authors： Poulton J,Sewry C,Potter CG,Bougeron T,Chretien D,Wijburg FA,Morten KJ,Brown G

更新日期：1995-01-01 00:00:00

abstract：:We report elevated urinary excretion of 3-methylglutaconic (3MGC) and 3-methylglutaric acids (3MGR) in a patient with glycogen storage disease Ib. Combined excretion was 10-fold elevated in comparison to control during inadequate glucose maintenance, and still elevated following dietary improvement. 3MGC acid excretio...

journal_title：Journal of inherited metabolic disease

authors： Law LK,Tang NL,Hui J,Lam CW,Fok TF

更新日期：2003-01-01 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

authors： Jones SA,Almássy Z,Beck M,Burt K,Clarke JT,Giugliani R,Hendriksz C,Kroepfl T,Lavery L,Lin SP,Malm G,Ramaswami U,Tincheva R,Wraith JE,HOS Investigators.

更新日期：2009-08-01 00:00:00

abstract：:For over two decades, nitisinone (NTBC) has been successfully used to manipulate the tyrosine degradation pathway and save the lives of many children with hereditary tyrosinaemia type 1. More recently, NTBC has been used to halt homogentisic acid accumulation in alkaptonuria (AKU) with evidence suggesting its efficacy...

journal_title：Journal of inherited metabolic disease

authors： Khedr M,Cooper MS,Hughes AT,Milan AM,Davison AS,Norman BP,Sutherland H,Jarvis JC,Fitzgerald R,Markinson L,Psarelli EE,Ghane P,Deutz NEP,Gallagher JA,Ranganath LR

更新日期：2020-09-01 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

authors： Huemer M,Carvalho DR,Brum JM,Ünal Ö,Coskun T,Weisfeld-Adams JD,Schrager NL,Scholl-Bürgi S,Schlune A,Donner MG,Hersberger M,Gemperle C,Riesner B,Ulmer H,Häberle J,Karall D

更新日期：2016-05-01 00:00:00

abstract：:There are two mechanisms for glucose transport across cell membranes. In the intestine and renal proximal tubule, glucose is transported against a concentration gradient by a secondary active transport mechanism in which glucose is cotransported with sodium ions. In all other cells, glucose transport is mediated by on...

journal_title：Journal of inherited metabolic disease

authors： Brown GK

更新日期：2000-05-01 00:00:00

abstract：:The human genome contains about 3 x 10(9) base pairs which, based on average estimates for the size of coding regions, might suggest an upper limit of about 3 million genes. Evidence from a variety of approaches indicates a much lower figure--in the range 40,000-100,000 genes. Renaturation kinetic analysis reveals the...

journal_title：Journal of inherited metabolic disease

authors： Craig IW

更新日期：1994-01-01 00:00:00

abstract：:This article documents both the neurological and physical outcomes of the first published set of siblings undergoing transplantation at differing ages for α-mannosidosis. The older brother, the index case, was diagnosed at the age of 3 years and underwent transplantation at 13 years for the treatment of increasing som...

journal_title：Journal of inherited metabolic disease

authors： Broomfield AA,Chakrapani A,Wraith JE

更新日期：2010-12-01 00:00:00

abstract：:The pathogenesis of brain dysfunction in phenylketonuria (PKU) is still under investigation. Hyperphenylalaninaemia results in increased turnover of myelin. In order to demonstrate the derangement of myelinization in PKU we studied the visual evoked potentials (VEP) in 14 PKU patients and in 20 normal subjects. VEP fi...

journal_title：Journal of inherited metabolic disease

authors： Giovannini M,Valsasina R,Villani R,Ducati A,Riva E,Landi A,Longhi R

更新日期：1988-01-01 00:00:00

abstract：:Despite adequate dietary management, patients with classic galactosemia continue to have increased risks of cognitive deficits, speech dyspraxia, primary ovarian insufficiency, and abnormal motor development. A recent evaluation of a new galactose-1 phosphate uridylyltransferase (GALT)-deficient mouse model revealed r...

journal_title：Journal of inherited metabolic disease

authors： Chen W,Caston R,Balakrishnan B,Siddiqi A,Parmar K,Tang M,Feng M,Lai K

更新日期：2017-01-01 00:00:00

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 ...

journal_title：Journal of inherited metabolic disease

authors： Weglage J,Pietsch M,Denecke J,Sprinz A,Feldmann R,Grenzebach M,Ullrich K

更新日期：1999-08-01 00:00:00

abstract：:Glutaric aciduria type 1 (GA1) is an inborn error of lysine degradation characterized by acute encephalopathy that is caused by toxic accumulation of lysine degradation intermediates. We investigated the efficacy of substrate reduction through inhibition of 2-aminoadipic semialdehyde synthase (AASS), an enzyme upstrea...

journal_title：Journal of inherited metabolic disease

authors： Leandro J,Dodatko T,DeVita RJ,Chen H,Stauffer B,Yu C,Houten SM

更新日期：2020-11-01 00:00:00

abstract：:Brown-Vialetto-Van Laere syndrome (BVVLS [MIM 211530]) is a rare neurological disorder characterized by infancy onset sensorineural deafness and ponto-bulbar palsy. Mutations in SLC52A3 (formerly C20orf54), coding for riboflavin transporter 2 (hRFT2), have been identified as the molecular genetic correlate in several ...

journal_title：Journal of inherited metabolic disease

authors： Haack TB,Makowski C,Yao Y,Graf E,Hempel M,Wieland T,Tauer U,Ahting U,Mayr JA,Freisinger P,Yoshimatsu H,Inui K,Strom TM,Meitinger T,Yonezawa A,Prokisch H

更新日期：2012-11-01 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

authors： Filosto M,Scarpelli M,Tonin P,Testi S,Cotelli MS,Rossi M,Salvi A,Grottolo A,Vielmi V,Todeschini A,Fabrizi GM,Padovani A,Tomelleri G

更新日期：2011-12-01 00:00:00

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

authors： Gu YH,Kodama H,Shiga K,Nakata S,Yanagawa Y,Ozawa H

更新日期：2005-01-01 00:00:00

abstract：:Congenital disorders of glycosylation (CDG) are a group of hereditary metabolic diseases characterized by abnormal glycosylation of proteins and lipids. Often, multisystem disorders with central nervous system involvement and a large variety of clinical symptoms occur. The main characteristics are developmental delay,...

journal_title：Journal of inherited metabolic disease

authors： Dörre K,Olczak M,Wada Y,Sosicka P,Grüneberg M,Reunert J,Kurlemann G,Fiedler B,Biskup S,Hörtnagel K,Rust S,Marquardt T

更新日期：2015-09-01 00:00:00

abstract：:We have identified a common novel mutation (Q354X) in the argininosuccinate lyase (ASL) gene in Saudi patients with argininosuccinic aciduria (ASAuria; McKusick 207900). The two index patients were siblings, had a neonatal onset of the disease and were diagnosed based on the clinical presentation and confirmed by anal...

journal_title：Journal of inherited metabolic disease

authors： Al-Sayed M,Alahmed S,Alsmadi O,Khalil H,Rashed MS,Imtiaz F,Meyer BF

更新日期：2005-01-01 00:00:00

abstract：:A battery of self-report psychosocial measures was mailed to 116 patients who had been referred for clinical management (clinic attenders) or laboratory diagnosis (non-clinic attenders) to the London Supraregional Assay Service Centre for Porphyria over the past decade and who tested positive for porphyria. Usable rep...

journal_title：Journal of inherited metabolic disease

authors： Millward LM,Kelly P,Deacon A,Senior V,Peters TJ

更新日期：2001-12-01 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

authors： Duarte ST,Ortez C,Pérez A,Artuch R,García-Cazorla A

更新日期：2011-04-01 00:00:00

abstract：:Twin brothers were born with clinical symptoms indicating that they were suffering from Zellweger syndrome. However, instead of a generalized peroxisomal dysfunction, only very long-chain fatty acids and the pristanic acid/phytanic acid ratio were elevated in plasma and decreased oxidation of very long-chain fatty aci...

journal_title：Journal of inherited metabolic disease

authors： Christensen E,Pedersen SA,Leth H,Jakobs C,Schutgens RB,Wanders RJ

更新日期：1997-09-01 00:00:00

abstract：:Electron micrographs of fibroblasts of an HHH-syndrome patient showed abnormal structures, similar, but not identical, to those observed in the liver of such patients. It is suggested that incorporation of a mutated protein into the inner mitochondrial membrane gives rise to a rearrangement of that membrane, resulting...

journal_title：Journal of inherited metabolic disease

authors： Metoki K,Hommes FA,Dyken P,Kelloes C,Trefz J

更新日期：1984-01-01 00:00:00

abstract：:The liver plays an important rôle in protecting the organism from potentially toxic chemical insults through its capacity to convert lipophiles into more water-soluble metabolites which can be efficiently eliminated from the body via the urine. This protective ability of the liver stems from the expression of a wide v...

journal_title：Journal of inherited metabolic disease

authors： Grant DM

更新日期：1991-01-01 00:00:00

abstract：:There have been few reports of cases missed by expanded newborn screening. Tandem mass spectrometry was introduced in New South Wales, Australia in 1998 to screen for selected disorders of amino acid, organic acid and fatty acid metabolism. Of 1,500,000 babies screened by 2012, 1:2700 were diagnosed with a target diso...

journal_title：Journal of inherited metabolic disease

authors： Estrella J,Wilcken B,Carpenter K,Bhattacharya K,Tchan M,Wiley V

更新日期：2014-11-01 00:00:00

abstract：:Enzyme defects in the mitochondrial fatty acid oxidation (FAO) are a large family of inherited metabolic disease well characterized clinically and genetically, but for which pharmacological strategies remain limited. It is now well established that regulation of genes involved in mitochondrial FAO is under control of ...

journal_title：Journal of inherited metabolic disease

authors： Djouadi F,Bastin J

更新日期：2008-04-01 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

authors： Kvittingen EA,Talseth T,Halvorsen S,Jakobs C,Hovig T,Flatmark A

更新日期：1991-01-01 00:00:00

abstract：:Adenosine deaminase (ADA) deficiency was the first known cause of primary immunodeficiency. Over the past 25 years the basis for immune deficiency has largely been established. Now it appears that ADA deficiency may also cause hepatic toxicity, raising new questions about its pathogenesis. The ADA gene has been sequen...

journal_title：Journal of inherited metabolic disease

authors： Hershfield MS,Arredondo-Vega FX,Santisteban I

更新日期：1997-06-01 00:00:00