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1995•British Journal of PharmacologyOpen access

Inhibition by sodium nitroprusside of the expression of inducible nitric oxide synthase in rat neutrophils

Sofia Mariotto, Laura Cuzzolin, Alessandra Adami, Piero Del Soldato, Hisanori Suzuki, G. Benoni

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Abstract

A well-known nitric oxide (NO)-releasing compound, sodium nitroprusside (SNP), decreases in a dose-dependent manner NO synthase (NOS) activity induced in rat neutrophils by treatment with lipopolysaccharide (LPS). This inhibitory action of SNP seems not to be due to its direct effect on the enzyme activity. The strong nitrosonium ion (NO+) character of SNP could be responsible for its inhibition of NOS induction in neutrophils.

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A well-known nitric oxide (NO)-releasing compound, sodium nitroprusside (SNP), decreases in a dose-dependent manner NO synthase (NOS) activity induced in rat neutrophils by treatment with lipopolysaccharide (LPS). This inhibitory action of SNP seems not to be due to its direct effect on the enzyme activity. The strong nitrosonium ion (NO+) character of SNP could be responsible for its inhibition of NOS induction in neutrophils.

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Available abstract

A well-known nitric oxide (NO)-releasing compound, sodium nitroprusside (SNP), decreases in a dose-dependent manner NO synthase (NOS) activity induced in rat neutrophils by treatment with lipopolysaccharide (LPS). This inhibitory action of SNP seems not to be due to its direct effect on the enzyme activity. The strong nitrosonium ion (NO+) character of SNP could be responsible for its inhibition of NOS induction in neutrophils.

Key concepts: Sodium nitroprusside, Nitric oxide synthase, Nitric oxide, Chemistry, ATP synthase, Lipopolysaccharide, Enzyme, Inhibitory postsynaptic potential

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