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  • 1
    ISSN: 1435-1463
    Keywords: Dystonia ; neurotransmitters ; basal ganglia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary While several radiological findings point towards the basal ganglia as a possible anatomical site of the lesion in dystonia patients the biochemical basis of the disorder is still unknown. 5-Hydroxyindoleacetic acid (5-HIAA) and homovanillic acid (HVA) levels — the respective metabolites of serotonin and dopamine — were measured in lumbar cerebrospinal fluid (lCSF) of 15 patients with idiopathic adult-onset focal dystonia and in lCSF of 11 controls. 100 μl lCSF were analyzed for 5-HIAA and HVA by reversed-phase HPLC with electrochemical detection. 5-HIAA levels were significantly reduced in dystonia patients (11.4μg/ml) compared to controls (18.4ng/ml) (p 〈 0.02). HVA levels in dystonia patients (30.3ng/ml) were below control values (41.6ng/ml) but this finding did not reach statistical significance. Decreased lCSF levels of 5-HIAA suggest an impaired serotonin metabolism in patients with idiopathic adult-onset dystonia. This observation may provide a biochemical basis for a more specific pharmacotherapy in dystonia patients.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Acta neurochirurgica 115 (1992), S. 98-102 
    ISSN: 0942-0940
    Keywords: Cerebral oedema ; meningioma ; progesterone receptor ; steroid receptor
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Steroid receptor binding activity was evaluated in specimens of 28 human cerebral meningiomas using a dextran coated charcoal (DCC) assay. Oestrogen receptor (ER) binding activity at significant levels (〉 10 fmol/mg protein) could be detected only in three postmenopausal females (11% positive cases) at low levels. Positive progesterone receptor (PR) binding was detected in eighteen of the twenty-eight analysed meningioma tissues (64% positive cases). A significantly higher level of PR in male than in female patients could be demonstrated. The degree of peritumoural oedema could be evaluated from CT scans. There was no significant correlation between lack and amount of peritumoural oedema and quantity of cytosolic PR binding activity. Therefore we conclude, that peritumoural oedema is related to other factors and a possible role of PR activity in development of peritumoural oedema and growth control of meningiomas could not be demonstrated.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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