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- W2336376237 abstract "This study was conducted to investigate effect of the acetylcholinesterase inhibitor activity, the protective effect of the extract on SH-SY5Y cell death by H₂O₂, the memory improvement from scopolamine-induced rat. Moreover, the antioxidant activity of isorhamnetin from the dropwort (Oenanthe javanica) was investigated. Acetylcholinesterase inhibitor activity was highest (28.59%) in Hwasun O. javanica extract (H-OJE). H-OJE and Naju O. javanica extract (N-OJE) were not significantly different. SH-SY5Y cell death deceased to 37.23% and 36.68% for H-OJE and N-OJE, respectively, following treatment with the extracts. O. javanica extracts showed a protective effect against H₂O₂-induced neurotoxicity. Treatment with O. javanica extracts slightly improved scopolamine-induced (1 mg/kg, i.p.) memory impairment in rats. H-OJE contained the highest total phenolic and flavonoid contents of 117 mg/g and 30 mg gallic acid equivalents/g, respectively, and had a DPPH radical scavenging activity (SC 50 ) of 113.8 μg/mL and ABTS radical scavenging activity of 48.2 μg/mL, which was higher than the other extracts. The thiobarbituric acid reactive substances value was highest (50.2%) in H-OJE. Antioxidant activity differed significantly among dropwort extracts. Isorhamnetin was known as one of the flavonoid and for having neuroprotective effect. So we analyzed acid-hydrolyzed O. javanica extract HPLC. The results were that peak at 14 min and spectrum of the extracts was consistent with standard solution. The results of LC/MS/MS analysis were that the extract and standard solution were confirmed total ion chromatogram at identical time, precursor ion was 317 [M-H]+ m/z, product ion was 302 [M-H]+ m/z. Overall, the results showed that the dropwort extract led to memory improvement and had antioxidant activity. Based on these finding, further research to investigate the production of ethanol extract of dropwort as a processed food is warranted." @default.
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- W2336376237 date "2021-08-16" @default.
- W2336376237 modified "2023-09-27" @default.
- W2336376237 title "Isorhamnetin" @default.
- W2336376237 doi "https://doi.org/10.31003/uspnf_r2115_01_01" @default.
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