Richard Vistelle

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PURPOSE Comparison of the influence of two different brain tumors (C6 and CNS1 glioma) on methotrexate (MTX) disposition in plasma, brain, and tumor tissue extracellular fluid (ECF). METHODS Serial collection of plasma samples and brain ECF dialysates after i.v. bolus administration of MTX (50 mg kg(-1)) for 4 h. Quantitation of MTX concentrations by(More)
Glutamic acid, an excitatory amino acid, has been proposed to play a major deleterious influence in cerebral ischemia. However, the neuroprotective activity of various glutamate receptor antagonists is often low or absent, according to the animal model used. In the present study, we examined the effect of several antagonists acting on glutamate receptors of(More)
KINFIT is a nonlinear least-squares computer program designed to allow pharmacokinetic modeling of experimental data and to obtain pertinent parameter estimates based on the derived values. It is written in Visual BASIC for the Microsoft Windows graphical environment. Drug concentrations in blood, plasma, or serum with time following intravenous(More)
A cannulation technique for continuous sampling of cerebrospinal fluid (CSF) in unanesthetized freely moving rabbits is described. A permanent stainless steel cannula constructed easily and inexpensively from commercially available material is placed into the third ventricle and fixed to the skull by anchoring screws and dental cement. This procedure allows(More)
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