Simultaneous measurement of nitrite and nitrate levels as indices of nitric oxide release in the cerebellum of conscious rats

Kiyofumi Yamada, Toshitaka Nabeshima

Research output: Contribution to journalArticle

153 Citations (Scopus)

Abstract

We examined the modulation of nitric oxide production in vivo by measuring levels of nitrite (NO2/-) and nitrate (NO3/-) in the dialysate of the cerebellum in conscious rats, by using an in vivo brain microdialysis technique. The levels of both NO2/- and NO3/- were decreased by the intraperitoneal injection of N(G)-nitro-L-arginine methyl ester, an inhibitor of nitric oxide synthase, whereas N(G)-nitro-D-arginine methyl ester had no effect. L-Arginine by itself increased NO2/- and NO3/- levels and diminished the reduction of their levels caused by N(G)-nitro-L-arginine methyl ester. Direct infusion of L-glutamate, N-methyl-D-aspartate, or KCl into the cerebellum through a dialysis probe resulted in an increase in NO2/- and/or NO3/- levels. The effects of N-methyl-D-aspartate and KCl were dependent on extracellular calcium. Furthermore, the stimulatory effects of L-glutamate and N-methyl-D-aspartate were inhibited by N(G)-nitro-L- arginine methyl ester and (±)-3-(2-carboxypiperazin-4-yl) propyl-1- phosphonic acid (CPP), an N-methyl-D-aspartate receptor antagonist. These results suggest that NO2/- and NO3/- levels may be related to nitric oxide production in vivo.

Original languageEnglish
Pages (from-to)1234-1243
Number of pages10
JournalJournal of Neurochemistry
Volume68
Issue number3
Publication statusPublished - 01-03-1997
Externally publishedYes

Fingerprint

NG-Nitroarginine Methyl Ester
N-Methylaspartate
Nitrites
Nitrates
Cerebellum
Rats
Nitric Oxide
Glutamic Acid
Dialysis
Dialysis Solutions
Microdialysis
N-Methyl-D-Aspartate Receptors
Intraperitoneal Injections
Nitric Oxide Synthase
Arginine
Brain
Modulation
Calcium
3-(2-carboxypiperazin-4-yl)propyl-1-phosphonic acid

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Cellular and Molecular Neuroscience

Cite this

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abstract = "We examined the modulation of nitric oxide production in vivo by measuring levels of nitrite (NO2/-) and nitrate (NO3/-) in the dialysate of the cerebellum in conscious rats, by using an in vivo brain microdialysis technique. The levels of both NO2/- and NO3/- were decreased by the intraperitoneal injection of N(G)-nitro-L-arginine methyl ester, an inhibitor of nitric oxide synthase, whereas N(G)-nitro-D-arginine methyl ester had no effect. L-Arginine by itself increased NO2/- and NO3/- levels and diminished the reduction of their levels caused by N(G)-nitro-L-arginine methyl ester. Direct infusion of L-glutamate, N-methyl-D-aspartate, or KCl into the cerebellum through a dialysis probe resulted in an increase in NO2/- and/or NO3/- levels. The effects of N-methyl-D-aspartate and KCl were dependent on extracellular calcium. Furthermore, the stimulatory effects of L-glutamate and N-methyl-D-aspartate were inhibited by N(G)-nitro-L- arginine methyl ester and (±)-3-(2-carboxypiperazin-4-yl) propyl-1- phosphonic acid (CPP), an N-methyl-D-aspartate receptor antagonist. These results suggest that NO2/- and NO3/- levels may be related to nitric oxide production in vivo.",
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Simultaneous measurement of nitrite and nitrate levels as indices of nitric oxide release in the cerebellum of conscious rats. / Yamada, Kiyofumi; Nabeshima, Toshitaka.

In: Journal of Neurochemistry, Vol. 68, No. 3, 01.03.1997, p. 1234-1243.

Research output: Contribution to journalArticle

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