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Author Pirger, Z. ♦ Battonyai, I. ♦ Krajcs, N. ♦ Elekes, K. ♦ Kiss, T.
Source SpringerLink
Content type Text
Publisher Springer Berlin Heidelberg
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Medicine & health
Subject Keyword Snail ♦ Olfaction ♦ Ion currents ♦ Procerebrum ♦ Neurosciences ♦ Cell Biology ♦ Neurology
Abstract The procerebrum (PC) of the snail brain is a critical region for odor discrimination and odor learning. The morphological organization and physiological function of the PC has been intensively investigated in several gastropod species; however, the presence and distribution of ion channels in bursting and non-bursting cells has not yet been described. Therefore, the aim of our study was to identify the different ion channels present in PC neurons. Based on whole cell patch-clamp and immunohistochemical experiments, we show that Na+-, Ca2+-, and K+-dependent voltage-gated channels are differentially localized and expressed in the cells of the PC. Different Na-channel subtypes are present in large (10–15 μm) and small (5–8 μm) diameter neurons, which are thought to correspond to the bursting and non-bursting cells, respectively. Here, we show that the bursting neurons possess fast sodium current (I NaT) and NaV1.9-like channels and the non-bursting neurons possess slow sodium current (I NaT) and NaV1.8-like channels in addition to the L-type Ca−, KV4.3 (A-type K-channel) and KV2.1 channels. We suggest that the bursting and/or non-bursting character of the PC neurons is at least partly determined by the battery of ion-channels present and their cellular and subcellular compartmentalization.
ISSN 18632653
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-02-27
Publisher Place Berlin/Heidelberg
e-ISSN 18632661
Journal Anatomy and Embryology
Volume Number 219
Issue Number 2
Page Count 10
Starting Page 673
Ending Page 682

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Source: SpringerLink