Correlation of inbred mouse sensitivity to nitrous oxide antinociception with brain nitric oxide synthase activity following exposure to nitrous oxide.

Abstract

Inhibition of nitric oxide synthase (NOS) antagonizes nitrous oxide (N2O)-induced antinociception in mice. This study was conducted to compare brain NOS activity in high responding C57BL/6 mice, low responding DBA/2 mice and S5 mice selectively bred for low responsiveness to N2O. Exposure to 70% N2O suppressed acetic acid-induced abdominal constrictions in… (More)

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