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© Uwe Maskos
Tranche d'hippocampe de souris colorée avec deux toxines spécifiques de sous-types de récepteur nicotinique, en rouge (grains), et en vert (corps cellulaires). L'hippocampe est la zone du cerveau qui gère la mémoire spatiale.
Publication : Neuroreport

Object memory in young and aged mice after sevoflurane anaesthesia

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Neuroreport - 28 Oct 2009

Wiklund A, Granon S, Faure P, Sundman E, Changeux JP, Eriksson LI

Link to Pubmed [PMID] – 19738500

Neuroreport 2009 Oct;20(16):1419-23

Learning and memory are cognitive functions commonly impaired after surgery, especially in elderly patients. Our aim was to evaluate the effect of sevoflurane anaesthesia on episodic-like memory in young and aged wild-type mice and mice with altered nicotinic cholinergic neurotransmission (beta2KO). Mice learned objects before randomization to control, anaesthesia or sham groups. Anaesthesia was maintained at 2.6% sevoflurane for 2 h, starting immediately after training. Object memory testing was performed after 24 h, when one familiar object was replaced by a nonfamiliar object. While nonanaesthetized mice showed memory retention of the familiar object, anaesthetized wild-type and beta2KO mice showed impaired memory. Sevoflurane anaesthesia thus causes memory impairment in mice regardless of beta2 receptor-mediated nicotinic cholinergic neurotransmission.