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  • cibenzoline  (2)
  • CSF dissemination  (1)
  • Key words Emulsion type  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 26 (1984), S. 297-302 
    ISSN: 1432-1041
    Keywords: cibenzoline ; antiarrhythmic drug ; coronary heart disease ; cardiac performance ; drug plasma level ; cardiac catheter ; inotropic action
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The effect of a single dose of cibenzoline ((diphenyl 2,2 cyclopropyl) -2 imidazoline, Cipralan), a new compound with antiarrhythmic properties was studied in 14 patients undergoing routine heart catheterization for suspected coronary artery disease. The effect of the drug on dP/dt, Vmax TP, Vce, negative dP/dt, heart rate (HR), left ventricular systolic pressure (LVSP), left ventricular end-diastolic pressure (LVEDP), cardiac index (CI) and systemic vascular resistance (SVR) was measured before and after drug administration. A significant decrease in left ventricular isometric contraction parameters was manifested immediately after injection, with its maximal effect 2 to 5 min after injection. An increase in HR, a decrease in LVSP, a decrease in CI and an increase in SVR were observed; LVEDP was not significantly altered, nor was negative dP/dt. The effect of the drug on Vmax TP and LVEDP was also examined during two atrial pacing stress tests (APST) done before and 10 to 20 min after drug administration. Although the negative inotropic action of the drug was apparent during the second APST, the effect was less pronounced at higher paced heart rates. No difference in the two tests was found between the maximal paced heart rate, nor was there a difference in the angina threshold. Finally the plasma level of the drug and the changes in certain parameters were compared. A positive correlation was found between the plasma level and dP/dt, Vmax TP and cardiac index.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 24 (1983), S. 509-515 
    ISSN: 1432-1041
    Keywords: cibenzoline ; pharmacokinetics ; bioavailability ; urinary excretion ; antiarrhythmic drug ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary The kinetics of cibenzoline (UP 339.01), a new antiarrhythmic drug, was studied after i.v. and oral administration to 5 healthy subjects. Cibenzoline levels in plasma and urine cibenzoline were measured by a GLC method. After i.v. administration, the total clearance was 826 ml · min−1. The fraction of cibenzoline excreted unchanged in the urine was 0.602 and it was correlated with the creatinine clearance. After i.v. and oral administration, the renal clearances were 499 ml · min−1 and 439 ml · min−1, and the half-lives were 4 h 01 min and 3 h 24 min, respectively. The differences were not significant. Availability by the oral route was 0.92, the maximum plasma concentration being observed at 1 h 36 min. The results were compared with those for other antiarrhythmic drugs.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Colloid & polymer science 276 (1998), S. 945-948 
    ISSN: 1435-1536
    Keywords: Key words Emulsion type ; amphiphilic polymer ; polyelectrolyte ; polymeric surfactant ; balanced copolymers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Highly hydrophobically modified (with n-dodecylamide chain) linear poly(acrylic acid)s (HHMPAAH) and poly(sodium acrylate)s (HHMPAANa) with various degrees of grafting (τ) were synthesized and used as emulsifiers of the n-dodecane/water system. The type of emulsion, oil in water (O/W) or water in oil (W/O), was investigated as a function of the polymer chemical structure (τ, salt or acid form of the copolymer) and aqueous phase electrolyte concentration (NaNO3). Increasing τ and/or salt concentration was found to favor the formation of inverse emulsions. Direct liquid–liquid dispersions are more likely to form with poly(sodium acrylate)s than with poly(acrylic acid)s. Hence, field variables such as τ, pH and ionic strength are relevant parameters to control emulsion type. Moreover, a balanced polyelectrolyte neither soluble in oil nor in water was synthesized for the first time. With this original emulsifier, the dispersion type was found to change from O/W to W/O with polymer salting out. The work provides convenient model system for fundamental studies of polymer conformation at liquid–liquid interfaces.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1590-3478
    Keywords: CNS tumors ; CSF dissemination ; Immunotherapy ; NK activity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Sommario 8 pazienti con tumore del sistema nervoso centrale con disseminazioni via liquido cefalo-rachidiano, sono stati sottoposti ad immunoterapia con rIL-2 secondo tre diversi schemi di trattamento che contemplavano la somministrazione intratecale seguita o no da somministrazione per via sistemica. Sono stati valutati alcuni parametri immunologici tra cui: citometria liquorale, percentuale di cellule CD3− CD56+ ed attività Natural Killer (NK) sia nel liquor che nel sangue. Nonostante vi fosse una marcata variabilità interindividuale nella risposta immunologica al trattamento, il protocollo che procurava il più marcato aumento della citometria liquorale comprendeva la somministrazione intratecale giornaliera di rIL-2. Il trattamento con rIL-2 per via intratecale — a prescindere dallo schema di somministrazione — induceva un aumento dell'attività NK nel sangue. La somministrazione di rIL-2 per via sistemica, in seguito al trattamento intratecale, era in grado di mantenere una elevata percentuale di cellule CD3− CD56+ nel liquor, ma non di mantenere l'elevata citometria. Le condizioni cliniche erano, alla fine del trattamento, migliorate in due pazienti, peggiorate in uno e sostanzialmente invariate negli altri. Gli effetti collaterali del trattamento erano principalmente febbre, stato confusionale e convulsioni.
    Notes: Abstract Eight patients affected by central nervous system tumours disseminating via cerebrospinal fluid received rIL-2 immunotherapy according to three different protocols involving intrathecal administration followed or not by systemic infusion. Immunological monitoring included serial evaluation of CSF leukocytes, CSF and peripheral blood CD3− CD56+ cells, and NK activity. The most marked rise in CSF leukocyte levels was induced by daily intrathecal rIL2 administration, which also induced increased PB NK activity. Systemic rIL2 infusion following intrathecal treatment maintained a high percentage of CSF CD3− CD56+ cells, but not CSF leukocytes at high levels. Clinical conditions improved after treatment in two patients, worsened in one and remained substantially unchanged in the remaining five. The side effects of intrathecal rIL2 treatment included fever, confusion, and seizures, and there were marked interindividual variations in the immunological response.
    Type of Medium: Electronic Resource
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