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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 62 (1984), S. 93-96 
    ISSN: 1432-1440
    Keywords: Renal transplantation ; Steroid osteoporosis ; 1,25-Dihydroxy vitamin D3 ; Immunosuppressive therapy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Forearm bone mineral content (BMC), as evaluated by photonabsorption densitometry, was measured in 28 cadaver kidney donor recipients who entered the study 8 weeks postoperatively and were followed up for 18 months. BMC decreased signifiantly (p〈0.05) but marginally in placebo-treated patients (n=14) (initial BMC 1.09±0.25 g/cm; final BMC 1.05±0.24). Fourteen patients were prophylactically given 1,25(OH)2vitamin D3 in a dose which avoided hypercalcemia and hypercalciuria (∼0.25 µg/day); under 1,25(OH)2 vitamin D3 prophylaxis a significant decrease of forearm BMC was observed no longer (initial BMC 0.94±0.21 g/cm; final BMC 0.95±0.21), but the difference between placebo and 1,25(OH)2 vitamin D3 narrowly missed statistical significance (p=0.066). It is concluded that the decrease of forearm BMC is negligible in transplant recipients with low steroid regimens. The data suggest a trend for prophylaxis with 1,25(OH)2 vitamin D3 to slightly ameliorate forearm (cortical) BMC loss.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1459
    Keywords: Shy-Drager syndrome ; Idiopathic orthostatic hypotension ; Plasma catecholamines ; Circulatory regulation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einer Patientin mit Shy-Drager-Syndrom wurden Plasmakatecholamine und Kreislaufparameter untersucht. Die basalen Werte an freiem Noradrenalin und Dopamin waren im Normbereich, Adrenalin erniedrigt. Die Reaktion der Plasmakatecholamine auf verschiedene Arten körperlicher Belastung war deutlich pathologisch. Die Unfähigkeit, die Plasmakatecholamine vor allem während längerer Aktivität auf erhöhtem Niveau zu halten, entsprach der beeinträchtigten Kreislaufregulation und kann als weiteres diagnostisches Kriterium angesehen werden.
    Notes: Summary Plasma catecholamines and circulation parameters were studied in a patient with a Shy-Drager syndrome. Basal values of free noradrenaline and dopamine were within the normal range, whereas the adrenaline level was decreased. The response of plasma catecholamines to different kinds of physical activity was pathological. The inability to maintain elevated catecholamine levels during prolonged activity corresponded to impaired circulatory regulation and may provide an additional tool for diagnosis and monitoring of the Shy-Drager syndrome.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neurology 230 (1983), S. 193-196 
    ISSN: 1432-1459
    Keywords: Arginine vasopressin ; Carbamazepine ; Anticonvulsants ; Epilepsy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 112 unter Monotherapie mit Carbamazepin, Phenytoin, Primidon oder Valproat stehenden erwachsenen Anfallskranken sowie bei 19 gleichaltrigen Kontrollpersonen wurden radioimmunologisch die Vasopressin-Plasma-Konzentrationen bestimmt. Es wurden keine signifikanten Unterschiede zwischen den Gruppen gefunden. Einige der mit Carbamazepin und Primidon monotherapierten Epileptiker wiesen niedrige Vasopressin-Werte auf. Die Carbamazepin-Serumspiegel korrelierten nicht mit den Vasopressin-Konzentrationen. Somit ergab sich weder ein Hinweis auf eine vermehrte Vasopressin-Ausschüttung unter Langzeittherapie mit Carbamazepin noch eine besondere Hemmung der Ausschüttung durch Phenytoin.
    Notes: Summary Plasma arginine vasopressin concentrations were determined by radio-immunoassay in 112 adult epileptics who were taking carbamazepine, phenytoin, primidone, or sodium valproate in long-term monotherapy, and in 19 controls. No significant difference was found between the groups, but some epileptics taking carbamazepine and primidone showed low values. Serum concentrations of carbamazepine did not correlate with the concentrations of plasma arginine vasopressin. In conclusion, there was no evidence of a stimulating effect of chronic carbamazepine medication or a special inhibiting effect of phenytoin on the release of vasopressin arginine from the posterior pituitary.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    European archives of psychiatry and clinical neuroscience 228 (1980), S. 91-94 
    ISSN: 1433-8491
    Keywords: Phenytoin toxicity ; Anticonvulsant long-term therapy ; Folic acid ; Competitive protein-binding assay ; Hydantoin-Nebenwirkungen ; Antikonvulsive Langzeitbehandlung ; Folsäure ; Kompetitive Protein-Bindungs-Analyse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem Vergleich der mit Hilfe der kompetitiven Protein-Bindungs-Analyse gemessenen Werte der unreduzierten Folsäure im Serum zwischen 48 mit Hydantoin behandelten Epileptikern und 38 Normalpersonen ergab sich kein signifikanter Unterschied der Mittelwerte. Durchschnittlich lag der Folsäurespiegel bei den Epileptikern mit 7,73 nmol/l gegenüber 7,18 nmol/l bei den Kontrollpersonen etwas höher. Dieser Befund stützt die Hypothese, daß der Folatmangel bei Epileptikern auf einer Blockierung der Umwandlung von Folsäure in 5-Methyltetrahydrofolsäure durch Diphenylhydantoin beruht.
    Notes: Summary No significant difference was found in a comparison between the values of unreduced serum folic acid of 48 epileptics treated with hydantoin and 38 controls as measured by a competitive protein-binding assay. The average folic acid value was 7.73 nmol/l in the epileptics, a little higher than the 7.18 nmol/l found in the controls. This result supports the hypothesis that the folate deficiency in epileptics is caused by blocking the conversion of folic acid to 5-methyltetrahydrofolic acid by phenytoin.
    Type of Medium: Electronic Resource
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