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Although excitotoxic cell death is usually considered a Ca(2+)-dependent process, in certain neuronal systems there is strong evidence that excitotoxic cell death is independent of Ca2+ and is instead remarkably dependent on extracellular Cl-. We have shown (in isolated chick embryo retina) that at least some of the lethal Cl- entry is through GABA and(More)
Doxorubicin (DXR) is a common antineoplastic agent whose clinical utility is limited by development of a dose-related cardiomyopathy. Recent studies demonstrating DXR toxicity in skeletal muscle suggest that this compound may in fact be a general depressant of muscle function. Although previous studies have reported possible indirect actions of DXR on blood(More)
Metabolic studies conducted on p-hydroxybenzoic acid orally administered at dose levels of 13 and 26 mg/kg to male and female cats have shown that the compound is rapidly excreted in the urine exclusively in the form of the glycine conjugate p-hydroxyhippuric acid. Similar results were obtained following either single administration or 7-day treatment. The(More)
Cyclosporin-induced hypertension is a major complication of immunosuppression in transplant recipients but its pathophysiology is only partly understood. Cyclosporin reduces endothelium-dependent vasodilation and increases endothelin synthesis and release, which may contribute to this hypertension. We examined the effects of: (1) nitric oxide enhancement(More)
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