A1 Journal article (refereed)
Reduced firing rates of pyramidal cells in the frontal cortex of APP/PS1 can be restored by acute treatment with levetiracetam (2020)


Klee, J. L., Kiliaan, A. J., Lipponen, A., & Battaglia, F. P. (2020). Reduced firing rates of pyramidal cells in the frontal cortex of APP/PS1 can be restored by acute treatment with levetiracetam. Neurobiology of Aging, 96, 79-86. https://doi.org/10.1016/j.neurobiolaging.2020.08.013


JYU authors or editors


Publication details

All authors or editors: Klee, Jan L.; Kiliaan, Amanda J.; Lipponen, Arto; Battaglia, Francesco P.

Journal or series: Neurobiology of Aging

ISSN: 0197-4580

eISSN: 1558-1497

Publication year: 2020

Volume: 96

Pages range: 79-86

Publisher: Elsevier

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1016/j.neurobiolaging.2020.08.013

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/71829


Abstract

In recent years aberrant neural oscillations in various cortical areas have emerged as a common physiological hallmark across mouse models of amyloid pathology and patients with Alzheimer's disease. However, much less is known about the underlying effect of amyloid pathology on single cell activity. Here, we used high density silicon probe recordings from frontal cortex area of 9 months old APP/PS1 mice to show that Local Field Potential (LFP) power in the theta and beta band is increased in transgenic animals, while single cell firing rates, specifically of putative pyramidal cells, are significantly reduced. At the same time, these sparsely firing pyramidal cells phase-lock their spiking activity more strongly to the ongoing theta and beta rhythms. Furthermore, we demonstrated that the anti-epileptic drug, levetiracetam, counteracts these effects by increasing pyramidal cell firing rates in APP/PS1 mice and uncoupling pyramidal cells and interneurons. Overall, our results highlight reduced firing rates of cortical pyramidal cells as a pathophysiological phenotype in APP/PS1 mice and indicate a potentially beneficial effect of acute levetiracetam treatment.


Keywords: amyloidosis; Alzheimer's disease; pathophysiology; neurons

Free keywords: amyloid; local field potential (LFP); single cell; firing rate; mouse model; Alzheimer’s disease


Contributing organizations


Ministry reporting: Yes

Reporting Year: 2020

JUFO rating: 2


Last updated on 2021-09-08 at 12:16