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- W4323257053 abstract "In Alzheimer’s disease (AD), network hyperexcitability is frequently observed and associated with subsequent cognitive impairment. Dysfunction of inhibitory interneurons (INs) is thought to be one of the key biological mechanisms of hyperexcitability. However, it is still unknown how INs are functionally affected in tau pathology, which is a major pathology in AD. To clarify this, we evaluated the neuronal activity of cortical INs in 6-month-old rTg4510 mice, a model of tauopathy. Calcium imaging with mDlx enhancer-driven labeling revealed that neuronal activity in INs was decreased in rTg4510 mice. In the patch clamp recording, the firing properties of fast-spiking INs were altered so as to reduce their activity in rTg4510 mice. In parallel with microglial activation, perineuronal nets around parvalbumin-positive INs were partially disrupted in rTg4510 mice. Taken together, our data indicate that the excitability of cortical fast-spiking INs is decreased, possibly because of the disruption of perineuronal nets." @default.
- W4323257053 created "2023-03-06" @default.
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- W4323257053 creator A5085556975 @default.
- W4323257053 date "2023-04-01" @default.
- W4323257053 modified "2023-10-17" @default.
- W4323257053 title "Selective dysfunction of fast-spiking inhibitory interneurons and disruption of perineuronal nets in a tauopathy mouse model" @default.
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