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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 230 (1983), S. 57-64 
    ISSN: 1432-1459
    Keywords: Oculopharyngeal muscular dystrophy ; Myopathy, distal ; Myopathy, inflammatory ; EMG ; Muscle biopsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Es wird über einen 50jährigen Italiener mit einer oculopharyngealen Muskeldystrophie berichtet. Es zeigte sich, daß in der Familie 11 drei verschiedenen Generationen angehörige Individuen eine Ptosis, Dysphagie, eine näselnde Sprache und Schwierigkeiten beim Gehen aufwiesen. Die Verteilung der Muskelschwäche beim Propositus und einer ebenfalls untersuchten Schwester war an den oberen Extremitäten proximal, an den unteren jedoch distal, wodurch eine Beziehung der oculopharyngealen Dystrophie und einer distalen Myopathie bestätigt wurde. Eine erste Muskelbiopsie zeigte lediglich einige Ansammlungen von Rundzellen, während eine zweite Biopsie, die fünf Jahre später durchgeführt wurde, ausgeprägte Zeichen eines dystrophischen Prozesses ergab. Diese Befunde sprechen dafür, daß vereinzelte Patienten mit oculopharyngealer Dystrophie sekundäre entzündliche Muskelsymptome aufweisen könnten.
    Notes: Summary An Italian male aged 50 years with oculopharyngeal muscular dystrophy is reported. Eleven of his relatives, over a period of three generations, had ptosis, dysphagia, nasal voice and difficulty in walking. The distribution of muscle weakness in the propositus and in one of his sisters was proximal in the upper, but distal in the lower limbs, confirming the existence of a relationship between oculopharyngeal dystrophy and distal myopathy. The first muscle biopsy appeared normal except for some round-cell collections, whereas the second one, 5 years later, showed marked dystrophic changes. Some patients with oculopharyngeal dystrophy may apparently pass through a secondary muscular inflammatory stage.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1590-3478
    Keywords: Botulinum toxin ; dystonia ; hemifacial spasm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario In 6 centri facenti parte del Gruppo Italiano per lo Studio dei Disturbi del Movimento è stata valutata l'efficacia della somministrazione di tossina botulinica A in 251 pazienti affetti da distonia focale e da spasmo del facciale. Nei pazienti con blefarospasmo, la percentuale media di miglioramento osservata è compresa tra il 66 e l'81%, mentre nei pazienti con torcicollo varia tra il 40% e il 51%. Nei pazienti affetti da spasmo del facciale la percentuale media di miglioramento è compresa tra il 73% e l'81%. Buoni risultati sono stati ottenuti anche nella terapia di distonie focali meno frequenti, come la distonia oromandibolare e laringea e il crampo dello scrivano. Gli effetti collaterali osservati sono risultati generalmente lievi, locali e transitori. Lo studio conferma quindi l'utilità della tossina botulinica nella terapia sintomatica delle distonie focali e nello spasmo del facciale.
    Notes: Abstract In six Centers belonging to the Italian Movement Disorder Study Group, the efficacy of botulinum toxin treatment was evaluated in an open collaborative study in 251 patients with focal dystonia and hemifacial spasm. The percentage of functional improvement ranged from 66% to 81% in patients with blepharospasm, from 40% to 51% in patients with spasmodic torticollis and from 73% to 81% in those with hemifacial spasm. Good results were also obtained in patients with oromandibular dystonia, laryngeal dystonia and writer's cramp. Side effects were mild and transient. Local botulinum toxin injection is the first choice symptomatic treatment in focal dystonia and hemifacial spasm.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1459
    Keywords: PGAM deficiency ; Myopathy ; Biochemistry ; Muscle culture ; 31P-MR spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Muscle phosphoglycerate mutase (PGAM) deficiency has been so far identified in only six patients, five of these being African Americans. We report the results of clinical, morphological, biochemical, muscle culture and31P-MR spectroscopy studies in the first Caucasian patient with muscle PGAM deficiency. A 23-year-old man had a 10-year history of cramps after physical exertion with one episode of pigmenturia. Neurological examination and EMG study were normal. ECG and echocardiography revealed hypertrophy of the interventricular septum and slight dilatation of the left chambers of the heart. Muscle biopsy revealed increased glycogen content and some accumulation of mitochondria. Muscle PGAM activity was markedly decreased (6.5% and 9.7% of control value in two different biopsies). Citrate synthase and other mitochondrial respiratory chain enzyme activities were much higher than normal. In contrast to the marked decrease of PGAM activity observed in muscle biopsy, total enzyme activity in the patient's aneural muscle culture was normal, being represented exclusively by BB isoenzyme. The deficiency of PGAM-MM isoenzyme was reproduced in the patient's innervated muscle culture. Muscle31P-MR spectroscopy showed accumulation of phosphomonoesters only on fast “glycolytic” exercise. On “aerobic” exercise, Vmax, calculated from the work-energy cost transfer function, showed an increase consistent with the morphological and biochemical evidence of mitochondrial proliferation. This might represent a sort of compensatory aerobic effort in an attempt to restore muscle power.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1459
    Keywords: Early-onset cerebellar ataxia ; Myoclonus ; Mitochondrial complex III deficiency ; Hypogonadotropic hypogonadism ; 31P-MR spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A 16-year-old girl presented with early-onset cerebellar ataxia, myoclonus, elevated lactic acidosis and hypogonadotropic hypogonadism. Muscle biopsy specimens revealed fibres with a “ragged” appearance with increased mitochondria and lipid droplets. Biochemical investigation revealed a deficiency of complexbc 1 (complex III) of the mitochondrial respiratory chain. Genetic analysis did not show either deletions or known mutations of mitochondrial DNA (mtDNA). Phosphorus magnetic resonance spectroscopy (31P-MRS) showed defective energy metabolism in brain and gastrocnemius muscle. A decreased phosphocreatine (PCr) content was found in the occipital lobes accompanied by normal inorganic phosphate (Pi) and cytosolic pH. These findings represented evidence of a high cytosolic adenosine diphosphate concentration and a relatively high rate of metabolism accompanied by a low phosphorylation potential. Muscle31P-MRS showed a high Pi content at rest, abnormal exercise transfer pattern and a low rate of PCr post-exercise recovery. These findings suggested a deficit of mitochondrial function. Therapy with vitamins K3 and C normalized brain31P-MRS indices, whereas it did not affect muscle bioenergetic metabolism. In this patient, the endocrinological disorder is putatively due to a mitochondrial cytopathy. Although an unknown mtDNA mutation cannot be ruled out, the genetic defect may lie in the nuclear genome.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Neurological sciences 3 (1982), S. 127-128 
    ISSN: 1590-3478
    Keywords: Prednisolone test ; CK ; neuromuscular disorders
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario La validità della somministrazione acuta di prednisolone come test per differenziare le distrofie muscolari dalle altre malattie neuromuscolari è stata verificata in 27 pazienti. I risultati ottenuti portano a ritenere tale metodica priva di una reale utilità pratica.
    Notes: Abstract 27 patients with various neuromuscular disorders were studied to assess the diagnostic role of acute prednisolone administration, the “prednisolone test”, in differentiating muscular dystrophy from other neuromuscular diseases. The results do not confirm the previous data in favour of the test.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Plant/Operations Progress 3 (1984), S. 203-209 
    ISSN: 0278-4513
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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