Fucoidan-Rich Substances from Ecklonia cava Improve Trimethyltin-Induced Cognitive Dysfunction via Down-Regulation of Amyloid ß Production/Tau Hyperphosphorylation.
Mar Drugs
; 17(10)2019 Oct 17.
Article
em En
| MEDLINE
| ID: mdl-31627432
ABSTRACT
Ecklonia cava (E. cava) was investigated to compare the effect of polyphenol and fucoidan extract and mixture (polyphenolfucoidan = 46) on cognitive function. The ameliorating effect of E. cava was evaluated using the Y-maze, passive avoidance and Morris water maze tests with a trimethyltin (TMT)-induced cognitive dysfunction model, and the results showed that the fucoidan extract and mixture (46) had relatively higher learning and memory function effects than the polyphenol extract. After a behavioral test, the inhibitory effect of lipid peroxidation and cholinergic system activity were examined in mouse brain tissue, and the fucoidan extract and mixture (46) also showed greater improvements than the polyphenol extract. Mitochondrial activity was evaluated using mitochondrial reactive oxygen species (ROS) content, mitochondrial membrane potential (MMP, ΔΨm), adenosine triphosphate (ATP) content, and mitochondria-mediated protein (BAX, cytochrome C) analysis, and these results were similar to the results of the behavioral tests. Finally, to confirm the cognitive function-related mechanism of E. cava, the amyloid-ß production and tau hyperphosphorylation-medicated proteins were analyzed. Based on these results, the improvement effect of E. cava was more influenced by fucoidan than polyphenol. Therefore, our study suggests that the fucoidan-rich substances in E. cava could be a potential material for improving cognitive function by down-regulating amyloid-ß production and tau hyperphosphorylation.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fosforilação
/
Polissacarídeos
/
Regulação para Baixo
/
Peptídeos beta-Amiloides
/
Proteínas tau
/
Phaeophyceae
/
Disfunção Cognitiva
Limite:
Animals
Idioma:
En
Revista:
Mar Drugs
Assunto da revista:
BIOLOGIA
/
FARMACOLOGIA
Ano de publicação:
2019
Tipo de documento:
Article