In vivo injected mitochondria-targeted plastoquinone antioxidant SkQR1 prevents β-amyloid-induced decay of long-term potentiation in rat hippocampal slices
Tóm tắt
Addition of 200 nM β-amyloid 1–42 (Abeta) to a rat hippocampal slice impairs the induction of a long-term post-tetanic potentiation (LTP) of population spike (PS) in pyramidal neurons of the CA1 field of hippocampus. Intraperitoneal injection into the rat of the mitochondria-targeted plastoquinone derivative SkQR1 (1 μmol/kg of weight given 24 h before the slices were made) abolishes the deleterious effect of Abeta on LTP. These data demonstrate that SkQR1 therapy is able to compensate the Abeta-induced impairments of long-term synaptic plasticity in the hippocampus, which are the main cause of loss of memory and other cognitive functions associated with Alzheimer’s disease.
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