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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 21 (2000), S. 103-108 
    ISSN: 1590-3478
    Keywords: Key wordsL-2-Hydroxyglutaric aciduria ; Magnetic resonance imaging ; Leukodystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract L-2-Hydroxyglutaric aciduria is a rare inborn error of metabolism, marked by a large and persistent increase of L-2-hydroxyglutaric acid in urine, blood and cerebrospinal fluid (CSF). We present clinical, biochemical and neuroradiological findings of seven Italian patients aged 4–19 years presenting at different stages of the disease. The disorder was characterized by a progressive neurological syndrome with cerebellar and pyramidal signs, mental deterioration, epilepsy and subcortical leukoencephalopathy on magnetic resonance imaging (MRI). We observed a good correlation between the severity of the disease and the extent of lesions on MRI. We report the result of the first positive prenatal diagnosis.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1920
    Keywords: Key words Congenital muscular dystrophy ; Merosin ; Magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present the MRI findings in five patients with congenital muscular dystrophy (CMD) and merosin (laminin α 2) deficiency, which was total in one and partial in four. In one patient with partial merosin deficiency, MRI was normal. The other four patients had supratentorial white matter abnormalities. In three, T2-weighted images revealed subcortical, deep lobar and periventricular high signal in white matter, while in the other there were only small peritrigonal areas of increased signal. On T1-weighted images, there was slightly low signal. Cortical abnormalities were absent. None of these changes were accompanied by symptoms or signs of central nervous system involvement. White matter abnormalities in a patient with CMD should prompt investigation of merosin.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 40 (1998), S. 727-733 
    ISSN: 1432-1920
    Keywords: Key words L-2-Hydroxyglutaric aciduria ; Brain ; magnetic resonance imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The MRI findings in 7 patients with L-2-Hydroxyglutaric aciduria (L-2-OHG aciduria) are described and compared with previous neuroradiological reports and the only three published pathological cases. Signal abnormalities involved peripheral subcortical white matter, basal ganglia and dentate nuclei. Cerebellar atrophy was present. Although similar appearances may be seen in other metabolic disorders, the distribution of signal abnormalities in L-2-OHG aciduria is highly characteristic and may suggest the correct diagnosis.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1573-2665
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report on a child with a clinical and neuroradiological picture consistent with Leigh disease and an unusual association of isolated hypermethioninaemia and 3-methylglutaconic aciduria. A low-methionine diet normalized both plasma methionine and urine 3-methylglutaconic acid; a methionine-loading test led to significant increase of both metabolites. In the skin fibroblasts the activity of 3-methylglutaconyl-CoA hydratase was essentially normal. No explanation of this uncommon association of hypermethioninaemia and glutaconic aciduria is available. The possibility of a common transporter for 3-methylglutaconic acid and methionine is an attractive hypothesis.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1590-3478
    Keywords: Adrenoleukodystrophy ; Adrenomyeloneuropathy ; Bone marrow transplantation ; Dietary treatment Incidence ; Phenotype ; Very long chain fatty acids
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario In questo articolo sono riportati i dati riguardanti una casistica di pazienti affetti da adrenoleucodistrofia raccolti net periodo 1985–1997. Questo è il più frequente dei disordini perossisomiali ed è associato ad un difetto funzionale dell'ossidazione degli acidi grassi a lunga catena (VLCFA). In Italia sono stati identificati 117 casi, ma molti soggetti potrebbero essere sfuggiti alla diagnosi a causa dell'eterogeneita delle manifestazioni cliniche che possono essere lievi o estremamente gravi. Due differenti approcci terapeutici sono in corso di studio: il trapianto di midollo osseo e un trattamento dietetico costituito da una miscela di trioleato e trierucato. La nostra esperienza in 68 soggetti sottoposti al trattamento dietetico mostra che quasi tutti i pazienti con evidenti segni cerebrali al momento dell'inizio del trattamento sono peggiorati o deceduti, i pazienti con la forma piu lieve, l'adrenomieloneuropatia, rimangono in condizioni stabili, mentre 4 dei 15 soggetti presintomatici hanno sviluppato i segni neurologici della malattia. Per quanto riguarda i risultati ottenuti con il trapianto di midollo, si osserva the la piú accurata selezione dei pazienti e dei donatori attuata in questi ultimi anni ha permesso di ottenere risultati incoraggianti con questo tentativo terapeutico.
    Notes: Abstract In this paper we report Italian data on X-linked adrenoleukodystrophy (ALD) collected from 1985 to 1997. This disease appears to be the most common of the peroxisomal disorders and is associated with a functional defect of the peroxisomal very long chain fatty acid (VLCFA) oxidation. In Italy 117 cases have been recognized, but many cases may be unrecognized due to the heterogeneous clinical manifestations that vary from mild to very severe forms. To control the devastating course of this disease two therapeutic approaches are under evaluation: bone marrow transplantation (BMT) and dietary treatment based on a mixture of glyceroyl trioleate (GTO) and glyceroyl trierucate (GTE). Our experience of 68 subjects submitted to dietary treatment shows that almost all patients with signs of cerebral involvement at the beginning of treatment worsened or died, patients with the milder form, adrenomyeloneuropathy (AMN), remained stable, while 4 of the 15 presymptomatic subjects developed neurological signs of the disease. In recent years a more accurate selection of patients and donors for BMT has given favourable results, but some strict criteria should be respected.
    Type of Medium: Electronic Resource
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