Word: nitric
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When a patient breathes nitric oxide, Zapol said, the gas never leaves the lungs. Instead, it combines with oxygen-carrying hemoglobin in red blood cells and is deactivated, so that any effects are purely local...
This also means that rather than decreasing blood pressure through out the body, a danger of other conventional treatments, nitric oxide only reduces pressure in the lungs...
Scientists contacted yesterday were generally optimist about the apparent success of the nitric oxide approach...
...nitric oxide may only be the tip of the iceberg. The idea behind the treatment, that pollutants that are toxic in high doses are actually essential chemicals in the human body, may open a whole new world of safe drugs for other diseases...
Zapol said previous research has proven nitric oxide's efficacy in treating "blue babies," who cannot breathe on their own at birth, and possibly children with congenital heart disease. Roberts predicted that approved use of the gas will be available within two years...