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. 1994 Apr;114(3):520-2.
doi: 10.1007/BF02249345.

Low dose of 1,3-di(2-tolyl)guanidine (DTG) attenuates MK-801-induced spatial working memory impairment in mice

T Maurice  1 , M Hiramatsu, J Itoh, T Kameyama, T Hasegawa, T Nabeshima
Affiliations

Low dose of 1,3-di(2-tolyl)guanidine (DTG) attenuates MK-801-induced spatial working memory impairment in mice

T Maurice et al. Psychopharmacology (Berl). 1994 Apr.

Abstract

MK-801 (30-100 micrograms/kg, SC) impaired spontaneous alternation behavior of mice, a behavior related to the spatial working memory. 1,3-Di-(2-tolyl)guanidine (DTG), (+)-pentazocine and (+)-SKF 10,047 (100 micrograms/kg, SC), putative sigma agonists, administered 10 min before MK-801, partially but significantly reversed the impairment, without affecting the concomitant hyperlocomotion. The antagonizing effects by DTG were prevented by BMY-14802 (5 mg/kg, IP), a purported sigma antagonist. These findings suggest that, at low doses, sigma ligands may modulate the N-methyl-D-aspartate dependent memory processes.

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