Unknown

Dataset Information

0

Optogenetic Restoration of Disrupted Slow Oscillations Halts Amyloid Deposition and Restores Calcium Homeostasis in an Animal Model of Alzheimer's Disease.


ABSTRACT: Slow oscillations are important for consolidation of memory during sleep, and Alzheimer's disease (AD) patients experience memory disturbances. Thus, we examined slow oscillation activity in an animal model of AD. APP mice exhibit aberrant slow oscillation activity. Aberrant inhibitory activity within the cortical circuit was responsible for slow oscillation dysfunction, since topical application of GABA restored slow oscillations in APP mice. In addition, light activation of channelrhodopsin-2 (ChR2) expressed in excitatory cortical neurons restored slow oscillations by synchronizing neuronal activity. Driving slow oscillation activity with ChR2 halted amyloid plaque deposition and prevented calcium overload associated with this pathology. Thus, targeting slow oscillatory activity in AD patients might prevent neurodegenerative phenotypes and slow disease progression.

SUBMITTER: Kastanenka KV 

PROVIDER: S-EPMC5257003 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

altmetric image

Publications

Optogenetic Restoration of Disrupted Slow Oscillations Halts Amyloid Deposition and Restores Calcium Homeostasis in an Animal Model of Alzheimer's Disease.

Kastanenka Ksenia V KV   Hou Steven S SS   Shakerdge Naomi N   Logan Robert R   Feng Danielle D   Wegmann Susanne S   Chopra Vanita V   Hawkes Jonathan M JM   Chen Xiqun X   Bacskai Brian J BJ  

PloS one 20170123 1


Slow oscillations are important for consolidation of memory during sleep, and Alzheimer's disease (AD) patients experience memory disturbances. Thus, we examined slow oscillation activity in an animal model of AD. APP mice exhibit aberrant slow oscillation activity. Aberrant inhibitory activity within the cortical circuit was responsible for slow oscillation dysfunction, since topical application of GABA restored slow oscillations in APP mice. In addition, light activation of channelrhodopsin-2  ...[more]

Similar Datasets

| S-EPMC6961381 | biostudies-literature
| S-EPMC6160748 | biostudies-other
| S-EPMC6656959 | biostudies-literature
| S-EPMC7416966 | biostudies-literature
| S-EPMC7016892 | biostudies-literature
| S-EPMC4817926 | biostudies-literature
| S-EPMC1223996 | biostudies-literature
| S-EPMC4675698 | biostudies-literature
| S-EPMC3319559 | biostudies-literature
| S-EPMC6125198 | biostudies-other