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Cocaine remains the most frequently used illicit substance. Although cocaine-induced atherosclerosis is well documented, its mechanism of action on human vascular endothelial cells has not been determined. Nitric oxide (NO) and endothelin-1 (ET-1) are involved in endothelial cell activation and leukocyte recruitment. The present study monitored the effects of cocaine on NO and ET-1 production in human...
Highly active antiretroviral therapy (HAART) has significantly improved the prognosis of HIV-1-infected patients but is associated with significant side effects such as diabetes, atherosclerosis, and cardiovascular complications. Oxidative stress can disrupt endothelial homeostasis by dysregulating the balance between pro- and antiatherogenic factors. We hypothesized that chronic exposure to HAART...
In a 4-cell stage C. elegans embryo, signaling by the P2 blastomere induces anterior–posterior polarity in the adjacent EMS blastomere, leading to endoderm formation. We have taken genetic and reverse genetic approaches toward understanding the molecular basis for this induction. These studies have identified a set of genes with sequence similarity to genes that have been shown to be, or are implicated...
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