Effects of 5-HT(1A) receptor agonists on the passive avoidance task in mice

T. Nabeshima; K. Itoh; K. Kawashima; T. Kameyama; J. C. Shih

Effects of 5-HT(1A) receptor agonists on the passive avoidance task in mice

T. Nabeshima, K. Itoh, K. Kawashima, T. Kameyama, J. C. Shih

Research Division of Advanced Diagnostic System

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Abstract

Effects of 5-HT agonists on learning and memory were examined using a step-down passive avoidance task in mice. A nonselective 5-HT agonist. 5- methoxy-N,N-dimethyltryptamine (5-MeODMT) given immediately after training remarkably decreased the step-down latencies in the retention test. A 5-HT₁ antagonist, (±)-pindolol significantly attenuated 5-MeODMT-induced amnesia. 5-HT(1A) selective agonists. 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH- DPAT) and 1-[2-(4-aminophenyl)ethyl]-4-(3-trifluoromethylphenyl) piperazine (PAPP) given immediately after training caused impairment of memory. 8-OH- DPAT-induced memory impairment was inhibited by a nonselective 5-HT antagonist, methysergide and a 5-HT₁ antagonist, (±)-pindolol, whereas a selective 5-HT₂ antagonist, ritanserin was inactive. These results suggest that 5-HT(1A) receptors may be linked to memory process in mice.

Original language	English
Pages (from-to)	87-108
Number of pages	22
Journal	Research Communications in Psychology, Psychiatry and Behavior
Volume	17
Issue number	3-4
Publication status	Published - 1992

All Science Journal Classification (ASJC) codes

Psychiatry and Mental health

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title = "Effects of 5-HT(1A) receptor agonists on the passive avoidance task in mice",

abstract = "Effects of 5-HT agonists on learning and memory were examined using a step-down passive avoidance task in mice. A nonselective 5-HT agonist. 5- methoxy-N,N-dimethyltryptamine (5-MeODMT) given immediately after training remarkably decreased the step-down latencies in the retention test. A 5-HT1 antagonist, (±)-pindolol significantly attenuated 5-MeODMT-induced amnesia. 5-HT(1A) selective agonists. 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH- DPAT) and 1-[2-(4-aminophenyl)ethyl]-4-(3-trifluoromethylphenyl) piperazine (PAPP) given immediately after training caused impairment of memory. 8-OH- DPAT-induced memory impairment was inhibited by a nonselective 5-HT antagonist, methysergide and a 5-HT1 antagonist, (±)-pindolol, whereas a selective 5-HT2 antagonist, ritanserin was inactive. These results suggest that 5-HT(1A) receptors may be linked to memory process in mice.",

author = "T. Nabeshima and K. Itoh and K. Kawashima and T. Kameyama and Shih, {J. C.}",

year = "1992",

language = "English",

volume = "17",

pages = "87--108",

journal = "Research Communications in Psychology, Psychiatry and Behavior",

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T1 - Effects of 5-HT(1A) receptor agonists on the passive avoidance task in mice

AU - Nabeshima, T.

AU - Itoh, K.

AU - Kawashima, K.

AU - Kameyama, T.

AU - Shih, J. C.

PY - 1992

Y1 - 1992

N2 - Effects of 5-HT agonists on learning and memory were examined using a step-down passive avoidance task in mice. A nonselective 5-HT agonist. 5- methoxy-N,N-dimethyltryptamine (5-MeODMT) given immediately after training remarkably decreased the step-down latencies in the retention test. A 5-HT1 antagonist, (±)-pindolol significantly attenuated 5-MeODMT-induced amnesia. 5-HT(1A) selective agonists. 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH- DPAT) and 1-[2-(4-aminophenyl)ethyl]-4-(3-trifluoromethylphenyl) piperazine (PAPP) given immediately after training caused impairment of memory. 8-OH- DPAT-induced memory impairment was inhibited by a nonselective 5-HT antagonist, methysergide and a 5-HT1 antagonist, (±)-pindolol, whereas a selective 5-HT2 antagonist, ritanserin was inactive. These results suggest that 5-HT(1A) receptors may be linked to memory process in mice.

AB - Effects of 5-HT agonists on learning and memory were examined using a step-down passive avoidance task in mice. A nonselective 5-HT agonist. 5- methoxy-N,N-dimethyltryptamine (5-MeODMT) given immediately after training remarkably decreased the step-down latencies in the retention test. A 5-HT1 antagonist, (±)-pindolol significantly attenuated 5-MeODMT-induced amnesia. 5-HT(1A) selective agonists. 8-hydroxy-2-(di-n-propylamino)tetralin (8-OH- DPAT) and 1-[2-(4-aminophenyl)ethyl]-4-(3-trifluoromethylphenyl) piperazine (PAPP) given immediately after training caused impairment of memory. 8-OH- DPAT-induced memory impairment was inhibited by a nonselective 5-HT antagonist, methysergide and a 5-HT1 antagonist, (±)-pindolol, whereas a selective 5-HT2 antagonist, ritanserin was inactive. These results suggest that 5-HT(1A) receptors may be linked to memory process in mice.

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VL - 17

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