Department of Life and Nanopharmaceutical Sciences, Graduate School, Kyung Hee University, Seoul 02447, Republic of Korea.
Department of Pharmacy, College of Pharmacy and Gachon Institute of Pharmaceutical Science, Gachon University, Incheon 21936, Republic of Korea.
Food Funct. 2021 Nov 1;12(21):10690-10699. doi: 10.1039/d1fo01403j.
Memory decline occurs due to various factors, including stress, depression, and aging, and lowers the quality of life. Several nutritional supplements and probiotics have been used to enhance memory function, and efforts have been made to develop mixed supplements with maximized efficacy. In this study, we aimed to examine whether a novel formulation composed of seeds and NK112, CCL01, enhances memory function and induces neurogenesis nerve growth factor (NGF) induction. Firstly, we orally administered CCL01 to normal mice and assessed their memory function 4 weeks after the first administration by performing a step-through passive avoidance test. We found that CCL01 at 100 mg kg treatment enhanced the fear-based memory function. By analyzing the expression of Ki-67 and doublecortin, which are the markers of proliferating cells and immature neurons, respectively, we observed that CCL01 induced neuronal proliferation and differentiation in the hippocampus of the mice. Additionally, we found that the expression of synaptic markers increased in the hippocampus of CCL01-treated mice. We measured the NGF expression in the supernatant of C6 cells after CCL01 treatment and found that CCL01 increased NGF release. Furthermore, treatment of CCL01-conditioned glial media on N2a cells increased neuronal differentiation the TrkA/ERK/CREB signaling pathway and neurotrophic factor expression. Moreover, when CCL01 was administered and scopolamine was injected, CCL01 ameliorated memory decline. These results suggest that CCL01 is an effective enhancer of memory function and can be applied to various age groups requiring memory improvement.
记忆衰退是由多种因素引起的,包括压力、抑郁和衰老,会降低生活质量。已经有几种营养补充剂和益生菌被用于增强记忆功能,并且已经努力开发具有最大功效的混合补充剂。在这项研究中,我们旨在研究由种子和 NK112、CCL01 组成的新型配方是否能增强记忆功能并诱导神经发生和神经生长因子(NGF)诱导。首先,我们给正常小鼠口服 CCL01,并在第一次给药后 4 周通过进行被动回避测试来评估它们的记忆功能。我们发现 CCL01 以 100mg/kg 的剂量处理可增强基于恐惧的记忆功能。通过分析 Ki-67 和双皮质素的表达,它们分别是增殖细胞和未成熟神经元的标志物,我们观察到 CCL01 诱导了小鼠海马中的神经元增殖和分化。此外,我们发现 CCL01 处理的小鼠海马中突触标志物的表达增加。我们测量了 CCL01 处理后 C6 细胞上清液中的 NGF 表达,发现 CCL01 增加了 NGF 的释放。此外,用 CCL01 条件培养基处理 N2a 细胞可增加神经元分化,这与 TrkA/ERK/CREB 信号通路和神经营养因子表达有关。此外,当给予 CCL01 并注射东莨菪碱时,CCL01 可改善记忆减退。这些结果表明,CCL01 是一种有效的记忆功能增强剂,可应用于需要改善记忆的各个年龄段的人群。