| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 2592298 | Regulatory Toxicology and Pharmacology | 2016 | 6 Pages |
•Cognition-enhancing effects of Cereboot™, an American ginseng extract, were investigated.•Cereboot™ inhibited Aβ cytotoxicity and enhanced ChAT expression in F3.ChAT cells.•Cereboot™ recovered cognitive function of Aβ1-42-challenged mice.•Neuronal integrity and acetylcholine level were restored by treatment with Cereboot™.
In Alzheimer disease (AD), amyloid-beta (Aβ) peptides induce the degeneration of presynaptic cholinergic system, in which decreased activity of enzyme choline acetyltransferase (ChAT) responsible for acetylcholine synthesis is observed. Cereboost™, an extract of American ginseng extract, contains a high concentration of Rb1 ginsenoside which is a well-known ingredient improving human cognitive function. We investigated the effects of Cereboost™ on learning and memory function of mice challenged with an Aβ1-42 peptide and the underlying mechanisms in vitro. Cereboost™ protected against Aβ1-42-induced cytotoxicity in F3.ChAT stem cells, and enhanced the ChAT gene expression. Aβ1-42 injection into the mouse brain impaired the cognitive function, which was recovered by oral administration of Cereboost™. In addition, Cereboost™ restored brain microtubule-associated protein 2 and synaptophysin as well as acetylcholine concentration. The results demonstrate that Cereboost™ administration recovered the cognitive function of AD model animals by enhancing acetylcholine level via ChAT gene expression and neuroprotection.
