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nitric oxide synthase |
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nitric oxide synthase [‚nī·trik ¦äk‚sīd ¦sin‚thās] (biochemistry) An enzyme that catalyzes the stepwise conversion of the amino acid L-arginine to nitric oxide and L-citrulline. There are three types: the brain (or neuronal) and epithelial nitric oxide synthases, which are always present in cells, and inducible nitric oxide synthase, which is produced as needed. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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We analyzed data on three such genetic polymorphisms: [delta-aminolevulinic acid dehydratase (ALAD), endothelial nitric oxide synthase (eNOS), and the vitamin D receptor (VDR). Nitric oxide (NO), a gas that was once believed to present only in the atmosphere, is produced in human tissues by the enzyme nitric oxide synthase (NOS), with L-arginine as the substrate. This reduced concentrations of two inflammatory agents--inducible nitric oxide synthase and cyclooxygenase-2, or COX-2. |
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