Involvement of cyclic GMP-dependent protein kinase in nitrous oxide-induced anxiolytic-like behavior in the mouse light/dark exploration test.
Brain Res 2005;
1038:113-7. [PMID:
15748880 DOI:
10.1016/j.brainres.2005.01.015]
[Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Revised: 12/29/2004] [Accepted: 01/04/2005] [Indexed: 11/18/2022]
Abstract
The second messenger cyclic GMP (cGMP) plays a role in the anxiolytic-like behavioral response of mice to nitrous oxide (N2O). This study was conducted to determine whether this behavioral effect of N2O is affected by inhibition of cGMP-dependent protein kinase (PKG). N2O-induced behavior in the light/dark exploration test was significantly attenuated by the PKG inhibitors H-8 and Rp-8-pCPT-cGMPS but not Rp-8-pCPT-cAMPS, an inhibitor of cAMP-dependent protein kinase. These findings implicate PKG in the mediation or modulation of the anxiolytic-like behavioral response to N2O.
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