Abstract
ABSTRACT: While nitric oxide (NO) has been implicated as a mediator of glutamate excitotoxicity after cerebral ischemia/reperfusion, melatonin has been reported to inhibit brain NO production by suppressing nitric oxide synthase. The purpose of the present studies was to determine the effect of exogenous melatonin administration on NO‐induced changes during brain ischemia/reperfusion. Indicators of cerebral cortical and cerebellar NO production [nitrite/nitrate levels and cyclic guanosine monophosphate(cGMP)] were used to estimate neural changes after transient bilateral carotid artery ligation followed by reperfusion in adult Mongolian gerbils (Meriones unguiculatus). Results show for the first time that melatonin prevents the increases in NO and cGMP production after transient ischemia/reperfusion in frontal cerebral cortex and cerebellum of Mongolian gerbils. The inhibitory effect of melatonin on NO production and its ability to scavenge free radicals and the peroxynitrite anion may be responsible for the protective effect of melatonin on neuronal structures during transient ischemia followed by reperfusion.
Bibliography
Guerrero, J. M., Reiter, R. J., Ortiz, G. G., Pablos, M. I., Sewerynek, E., & Chuang, J. (1997). Melatonin prevents increases in neural nitric oxide and cyclic GMP production after transient brain ischemia and reperfusion in the Mongolian gerbil (Meriones Unguiculatus). Journal of Pineal Research, 23(1), 24â31. Portico.
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Dates
Type | When |
---|---|
Created | 18 years, 7 months ago (Feb. 2, 2007, 5:23 p.m.) |
Deposited | 1 year, 10 months ago (Oct. 27, 2023, 5:48 p.m.) |
Indexed | 1 year, 2 months ago (June 11, 2024, 8:32 a.m.) |
Issued | 28 years, 1 month ago (Aug. 1, 1997) |
Published | 28 years, 1 month ago (Aug. 1, 1997) |
Published Online | 18 years, 7 months ago (Jan. 30, 2007) |
Published Print | 28 years, 1 month ago (Aug. 1, 1997) |
@article{Guerrero_1997, title={Melatonin prevents increases in neural nitric oxide and cyclic GMP production after transient brain ischemia and reperfusion in the Mongolian gerbil (Meriones Unguiculatus)}, volume={23}, ISSN={1600-079X}, url={http://dx.doi.org/10.1111/j.1600-079x.1997.tb00331.x}, DOI={10.1111/j.1600-079x.1997.tb00331.x}, number={1}, journal={Journal of Pineal Research}, publisher={Wiley}, author={Guerrero, Juan M. and Reiter, Russel J. and Ortiz, Genaro G. and Pablos, Marta I. and Sewerynek, Ewa and Chuang, Jih‐lng}, year={1997}, month=aug, pages={24–31} }