Lactobacillus Spp.-Enhanced Memory is Strain-Dependent and Associated, in Part, with Amyloidogenic and anti-Oxidant/Oxidative Stress Interplay in Amyloid Beta Precursor Protein Transgenic Mice

• Published in: Journal of Dietary Supplements
• Main Author: Ahmad Alwi N.A.; Lim S.M.; Mani V.; Ramasamy K.
• Format: Article
• Language: English
• Published: Taylor and Francis Ltd. 2023
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85134664057&doi=10.1080%2f19390211.2022.2103608&partnerID=40&md5=e898032e26a977eb6a4e1cf14a99d69a

This study explored mechanisms underpinning enhanced memory in amyloid precursor protein (APP) transgenic mice (male; 10-12 months; n = 6/group) supplemented with Lactobacillus plantarum LAB12 (LAB12)/Lactobacillus casei Shirota (LcS). Morris Water Maze test was performed before brains were harvested for gene expression and biochemical studies. LAB-supplemented mice exhibited reduced escape latency and distance but significant increased time spent in platform zone. This was associated with downregulated beta-site APP cleaving enzyme-1 (BACE1) mRNA and significant reduced nitric oxide in brains. LAB12 also significantly increased glutathione. The LAB-enhanced memory is strain-dependent and could be mediated, in part, through amyloidogenic pathway and anti-oxidant/oxidative stress interplay. © 2022 Taylor & Francis Group, LLC.