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Enhancement by 1-oleoyl-2-docosahexaenoyl phosphatidylcholine of long-term potentiation in the rat hippocampal CA1 region.

Abstract：

:We reported previously that administration of 1-oleoyl-2-docosahexaenoyl-sn-glycero-3-phosphorylcholine (ODHPC), a kind of phosphatidylcholine, enhanced discriminatory shock avoidance learning in rats. Since long-term potentiation (LTP) of the hippocampus has been suggested to be a physiological substrate of some forms of memory, we investigated the effects of ODHPC on LTP in the rat hippocampal CA1 region. LTP in the amplitude of population spikes in the CA1 region was induced by tetanic stimulation in anesthetized rats. ODHPC significantly increased magnitudes of LTP in a dose-dependent manner when injected intraperitoneally 20 min before inducing LTP. However, administration of 1,2-dioleoyl-sn-glycero-3-phosphorylcholine, in which only docosahexaenoyl residue of ODHPC was replaced with oleoyl residue, did not affect LTP. These results suggest that ODHPC enhances hippocampal LTP by its specific conformation.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Izaki Y,Hashimoto M,Arita J

doi

10.1016/s0304-3940(98)00965-3

keywords:

subject

Has Abstract

pub_date

1999-01-29 00:00:00

pages

146-8

issue

2

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(98)00965-3

journal_volume

260

pub_type

杂志文章

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