Intracellular amyloid induces impairments on electrophysiological properties of cultured human neurons.

Abstract:

:The role of intracellular amyloid beta (iAbeta) in Alzheimer's disease (AD) initiation and progression attracts more and more attention in recent years. To address whether iAbeta induces early alterations of electrophysiological properties in cultured human primary neurons, we delivered iAbeta with adeno-virus and measured the electrophysiological properties of infected neurons with whole-cell recordings. Our results show that iAbeta induces an increase in neuronal resting membrane potentials, a decrease in K(+) currents and a hyperpolarizing shift in voltage-dependent activation of K(+) currents. These results suggest the electrophysiological impairments induced by iAbeta may be responsible for its neuronal toxicity.

journal_name

Neurosci Lett

journal_title

Neuroscience letters

authors

Hou JF,Cui J,Yu LC,Zhang Y

doi

10.1016/j.neulet.2009.07.031

subject

Has Abstract

pub_date

2009-10-25 00:00:00

pages

294-9

issue

3

eissn

0304-3940

issn

1872-7972

pii

S0304-3940(09)00958-6

journal_volume

462

pub_type

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