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• W2900619072 endingPage "e0207750" @default.
• W2900619072 startingPage "e0207750" @default.
• W2900619072 abstract "N-(4-fluorophenyl)-N'-phenyl-N-(pyrimidin-2-ylmethyl)-1,3,5-triazine-2,4,6-triamine [ASP2905] is a potent and selective inhibitor of the potassium voltage-gated channel subfamily H member 3 (KCNH3) that was originally identified in our laboratory. KCNH3 is concentrated in the forebrain, and its overexpression in mice leads to cognitive deficits. In contrast, Kcnh3 knockout mice exhibit enhanced performance in cognitive tasks such as attention. These data suggest that KCNH3 plays important roles in cognition. Here we investigated the neurochemical and neurophysiological profiles of ASP2905 as well as its effects on cognitive function, focusing on attention. ASP2905 (0.0313 and 0.0625 mg/kg, po) improved the latent learning ability of mice, which reflects attention. Microdialysis assays in rats revealed that ASP2905 increased the efflux of dopamine and acetylcholine in the medial prefrontal cortex (0.03, 0.1 mg/kg, po; 0.1, 1 mg/kg, po, respectively). The activities of these neurotransmitters are closely associated with attention. We used a multiple-trial passive avoidance task to investigate the effects of ASP2905 on inattention and impulsivity in juvenile stroke-prone spontaneously hypertensive rats. ASP2905 (0.1 and 0.3 mg/kg, po) significantly prolonged cumulative latency as effectively as methylphenidate (0.1 and 0.3 mg/kg, sc), which is the gold standard for treating ADHD. Further, ASP2905, amphetamine, and methylphenidate significantly increased the alpha-band power of rats, suggesting that ASP2905 increases arousal, which is a pharmacologically important activity for treating ADHD. In contrast, atomoxetine and guanfacine did not significantly affect power. Together, these findings suggest that ASP2905, which acts through a novel mechanism, is as effective for treating ADHD as currently available drugs such as methylphenidate." @default.
• W2900619072 created "2018-11-29" @default.
• W2900619072 creator A5015017255 @default.
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• W2900619072 date "2018-11-21" @default.
• W2900619072 modified "2023-10-14" @default.
• W2900619072 title "The KCNH3 inhibitor ASP2905 shows potential in the treatment of attention deficit/hyperactivity disorder" @default.
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• W2900619072 doi "https://doi.org/10.1371/journal.pone.0207750" @default.
• W2900619072 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6248980" @default.
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• W2900619072 hasPublicationYear "2018" @default.
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