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Synthetic gene networks can be constructed to emulate digital circuits and devices, giving one the ability to program and design cells with some of the principles of modern computing, such as counting. A cellular counter would enable complex synthetic programming and a variety of biotechnology applications. Here, we report two complementary synthetic(More)
Reactive oxygen species (ROS) have been shown to cause a broad spectrum of damage to the biological system. ROS-mediated reactions are believed to play a key role in Cr(VI)-induced carcinogenesis. Using electron spin resonance (ESR) spin trapping, the present study shows that apple juice efficiently scavenged hydroxyl radicals generated by Cr(VI) reduction(More)
Agents that modulate cellular iron availability have been studied for their antitumor activity. Based on encouraging in vitro studies, the iron chelator deferoxamine (DFO) has been used in clinical studies to treat cancer patients. The observation that DFO induced macular edema in several cancer patients led to the present investigation of vascular(More)
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