Widespread tissue distribution, species distribution and changes in activity of Ca2+‐dependent and Ca2+‐independent nitric oxide synthases
- 7 October 1991
- journal article
- Published by Wiley in FEBS Letters
- Vol. 291 (1) , 145-149
- https://doi.org/10.1016/0014-5793(91)81123-p
Abstract
The distribution of Ca2+-dependent and Ca2+-independent nitric oxide synthase (NOS) was studied in rabbits and in control and endotoxin-treated rats and guinea-pigs. There was a widespread localization of NOS which differed for the two forms of the enzyme and which showed marked differences between species. Endotoxin induced the activity of the Ca2+-independent NOS in many tissues and also increased the activity of Ca2+-dependent NOS in the rat ileum and caecum. These results demonstrate the differential distribution of NOSs in control and endotoxin-treated animals and emphasize the widespread biological role of nitric oxide (NO).Keywords
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