Y. J. Blankwater

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Excretion and autoradiographic distribution studies were performed in rats with two 14C-labelled polyvinylpyrrolidone preparations, both of relatively low mean molecular weight but different in molecular weight distribution. At different time intervals after i.v. administration, elimination of radioactivity was found to be more complete for the preparation(More)
The correlation between the distribution of the intraventricularly (i.v.t.) administered delta agonist [3H](D-ala2,D-leu5)-enkephalin ([3H]DADL) and the anatomical regions involved in enkephalin-induced seizures has been studied in rat by using an autoradiographic method and recording of the electromyogram (EMG) and the electroencephalogram (EEG). The(More)
With the purpose of studying the influence of polyvinylpyrrolidone (PVP) on the disposition of oxytetracycline (OTC), OTC was administered i.v. to male rats in two formulations, one of which contained 14C-labelled PVP. From the rats, whole-body sections (30 mum) were taken which were subjected to three analytical procedures: autoradiography to determine the(More)
where abound and afree are pre-exponential factors associated with long ('rbound) and short (Z'free) lifetime, respectively. This ratio is identical to that measured by spectral decomposition [1] but the methods of time-resolved spectroscopy afford a higher sensitivity and precision of its determination. Increase in the negative potential of yeast cells(More)
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