Word: sulfhydryl
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...Searching for a preventive for radiation sickness, Richard R. Overman of the University of Tennessee College of Medicine announced that a drug called amino-ethylisothiuronium (AET for short), a sulfhydryl-related compound, has been 100% effective in protecting monkeys from the immediate effects of lethal radiation. AET was developed at the Atomic Energy Commission's Oak Ridge National Laboratory. Still to be determined: the drug's long-term effect on the treated monkeys and any possible application to humans. Working on another AEC project, Overman is testing the effect of bone marrow injections on radiation damage. High doses...
...Wald is not quite sure how the destruction of rhodopsin by light produces nerve impulses that the brain interprets as vision. But since the impulses are electrical, he suspects that they may be started by some electrical consequence of the destruction of the rhodopsin. One possibility: that sulfhydryl (sulphur and hydrogen) groups, are exposed when the rhodopsin molecules disintegrate. These are lively chemicals with the necessary punch to start an electrical commotion...
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