Lactobacillus johnsonii CJLJ103 Attenuates Scopolamine-Induced Memory Impairment in Mice by Increasing BDNF Expression and Inhibiting NF-κB Activation

• Published in: Journal of microbiology and biotechnology Vol. 28; no. 9; pp. 1443 - 1446
• Main Authors: Lee, Hae-Ji, Lim, Su-Min, Kim, Dong-Hyun
• Format: Journal Article
• Language: Korean
• Published: 한국미생물생명공학회 30.09.2018
• Subjects: BDNF; Lactobacillus johnsonii; memory impairment; NF-κB; Lactobacillus johnsonii; BDNF; NF-{\kappa}B; memory impairment
• ISSN: 1017-7825; 1738-8872

In the present study, we examined whether Lactobacillus johnsonii CJLJ103 (LJ) could alleviate cholinergic memory impairment in mice. Oral administration of LJ alleviated scopolamineinduced memory impairment in passive avoidance and Y-maze tasks. Furthermore, LJ treatment increased scopolamine-suppressed BDNF expression and CREB phosphorylation in the hippocampi of the brain, as well as suppressed TNF-α expression and NF-κB activation. LJ also increased BDNF expression in corticosterone-stimulated SH-SY5Y cells and inhibited NF-κB activation in LPS-stimulated microglial BV2 cells. However, LJ did not inhibit acetylcholinesterase activity. These findings suggest that LJ, a member of human gut microbiota, may mitigate cholinergic memory impairment by increasing BDNF expression and inhibiting NF-κB activation.