The Economist (US), September 26th, 1992
The body uses small amounts of nitric oxide, a substance that is poisonous in larger amounts. White blood cells sometimes manufacture small amounts to poison bacteria. This might be used as an effective cancer treatment.
UNLIKE its near namesake nitrous oxide, nitric oxide is no cause for laughter: it produces lung-searing smogs and acid rain. But biochemists have started to find that nitric oxide does apparently useful things in people's bodies. It helps to fight infections and cancers, control blood pressure, convey impulses between nerve cells and from nerves to muscles, and even facilitat...
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