Effects of Scrophularia buergeriana Extract (Brainon®) on Aging-Induced Memory Impairment in SAMP8 Mice
| Autor: | Hae Lim Kim, Sung Kwon Lee, Da Eun Min, Tonking Bastola, Bo Yoon Chang, Jin Hye Bae, Dong Ryung Lee |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Current Issues in Molecular Biology, Vol 45, Iss 2, Pp 1287-1305 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1467-3045 1467-3037 |
| DOI: | 10.3390/cimb45020084 |
| Popis: | Alzheimer’s disease (AD) is a worldwide problem. Currently, there are no effective drugs for AD treatment. Scrophularia buergeriana Miquel (SB) is a traditional herbal medicine used in Korea to treat various diseases. Our previous studies have shown that ethanol extract of SB roots (SBE, Brainon®) exhibits potent anti-amnesic effects in Aβ1–42- or scopolamine-treated memory impairment mice model and neuroprotective effects in a glutamate-induced SH-SY5Y cell model. In this study, we evaluated the therapeutic effects of Brainon® and its mechanism of action in senescence-accelerated mouse prone 8 (SAMP8) mice. Brainon® (30 or 100 mg/kg/day) was orally treated to six-month-old SAMP8 mice for 12 weeks. Results revealed that Brainon® administration effectually ameliorated cognitive deficits in Y-maze and passive avoidance tests. Following the completion of behavioral testing, western blotting was performed using the cerebral cortex. Results revealed that Brainon® suppressed Aβ1–42 accumulation, Tau hyperphosphorylation, oxidative stress, and inflammation and alleviated apoptosis in SAMP8 mice. Brainon® also promoted synaptic function by downregulating the expression of AChE and upregulating the expression of p-CREB/CREB and BDNF. Furthermore, Brainon® restored SAMP8-reduced expression of ChAT and -dephosphorylated of ERK and also decreased AChE expression in the hippocampus. Furthermore, Brainon® alleviated AD progression by promoting mitophagy/autophagy to maintain normal cellular function as a novel finding of this study. Our data suggest that Brainon® can remarkably improve cognitive deficiency with the potential to be utilized in functional food for improving brain health. |
| Databáze: | Directory of Open Access Journals |
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