J. A. Silverman

Publications8
h-index7
Citations893
Highly Influential Citations31
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Role of P-glycoprotein and cytochrome P450 3A in limiting oral absorption of peptides and peptidomimetics.
Cytochrome P450 3A4 (CYP3A4), the major phase I drug metabolizing enzyme in humans, and the MDR1 gene product P-glycoprotein (P-gp) are present at high concentrations in villus tip enterocytes of the… Expand
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Intestinal MDR transport proteins and P-450 enzymes as barriers to oral drug delivery.
Cytochrome P-450 3A4 (CYP3A4), the major phase I drug metabolizing enzyme in humans, and the multidrug efflux pump, MDR or P-glycoprotein (P-gp), are present at high levels in the villus tip… Expand
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Induced Activation of the Toxoplasma gondiiNucleoside Triphosphate Hydrolase Leads to Depletion of Host Cell ATP Levels and Rapid Exit of Intracellular Parasites from Infected Cells*
The nucleoside triphosphate hydrolase ofToxoplasma gondii is a potent apyrase. The protein is synthesized in large amounts and transported through the secretory pathway of the parasite and into the… Expand
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Enhanced bioavailability of oral docetaxel by co-administration of cyclosporin A in dogs and rats.
Pharmacokinetic and pharmacodynamic endpoints of intravenously and orally administered docetaxel (DT) with or without oral cyclosporine were characterized in rats and dogs. Plasma samples were… Expand
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Characterization of anti-Toxoplasma activity of SDZ 215-918, a cyclosporin derivative lacking immunosuppressive and peptidyl-prolyl-isomerase-inhibiting activity: possible role of a P glycoprotein in…
The immunosuppressive agent cyclosporin A (CsA) also possesses broad-spectrum antimicrobial activity. Previous investigators have reported that the obligate intracellular protozoan Toxoplasma gondii… Expand
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Cortical and ventral tegmental systems exert opposing influences on self-stimulation from the prefrontal cortex
Intracranial self-stimulation (ICSS) was obtained from 3 areas of anteromedial cortex: the prelimbic area (Brodman's area 32), the anterior cingulate area and the posterior cingulate area. Electrical… Expand
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Prolactin increases ATP-dependent taurocholate transport in canalicular plasma membrane from rat liver.
The taurocholate (TC) maximal secretory rate (SRm) in the isolated perfused liver is increased in postpartum rats and ovariectomized rats treated with ovine prolactin (oPRL). The present studies were… Expand
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Prefrontal cortex lesions attenuate substantia nigra self-stimulation: A reward summation analysis
A curve-shift paradigm was used to assess the effects of lesions of the prefrontal cortex on self-stimulation from electrode sites in the substantia nigra. Combined lesions of the medial and sulcal… Expand
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