Dendrobium officinale polysaccharides attenuate learning and memory disabilities via anti-oxidant and anti-inflammatory actions

Copyright © 2018 Elsevier B.V. All rights reserved..

The aim of this study was to explore the therapeutic effect and underling mechanism of Dendrobium officinale polysaccharides (DOPS) on two well-established animal models of learning and memory disabilities. Model of estrogen deficiency caused learning and memory disability can be induced by ovariectomy in mice, and mice were injected subcutaneously with d-galactose, which can also cause cognitive decline. H&E staining and Nissl staining were employed to confirm the protective effect of DOPS on hippocampal neuron. Morris water maze test, biochemical analysis, immunohistochemistry and immunofluorescence assay were used to study the effect and underlying mechanism of DOPS on two different learning and memory impairment models. Administration of DOPS significantly improved learning and memory disability in both models. Further studies showed that DOPS could attenuate oxidative stress and reduce neuro-inflammation via up-regulating expressions of Nrf2/HO-1 pathway and inhibiting activation of astrocytes and microglia in ovariectomy- and d-galactose-induced cognitive decline. These findings suggest that DOPS have an appreciable therapeutic effect on learning and memory disabilities and its mechanism may be related to activate Nrf2/HO-1 pathway to reduce oxidative stress and neuro-inflammation.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:126

Enthalten in:

International journal of biological macromolecules - 126(2019) vom: 01. Apr., Seite 414-426

Sprache:

Englisch

Beteiligte Personen:

Liang, Jian [VerfasserIn]
Wu, Yanfang [VerfasserIn]
Yuan, Han [VerfasserIn]
Yang, Yiqi [VerfasserIn]
Xiong, Qingping [VerfasserIn]
Liang, Chuyan [VerfasserIn]
Li, Zhimeng [VerfasserIn]
Li, Cantao [VerfasserIn]
Zhang, Guifang [VerfasserIn]
Lai, Xiaoping [VerfasserIn]
Hu, Youdong [VerfasserIn]
Hou, Shaozhen [VerfasserIn]

Links:

Volltext

Themen:

4Y8F71G49Q
Aif1 protein, mouse
Anti-Inflammatory Agents
Antioxidants
Calcium-Binding Proteins
Dendrobium officinale
EC 1.14.14.18
EC 1.15.1.1
Galactose
Glial Fibrillary Acidic Protein
Heme Oxygenase-1
Interleukin-1beta
Journal Article
Learning and memory impairment
Malondialdehyde
Microfilament Proteins
NF-E2-Related Factor 2
Neuro-inflammation
Neuroprotective Agents
Oxidative stress
Polysaccharides
Superoxide Dismutase
Tumor Necrosis Factor-alpha
X2RN3Q8DNE

Anmerkungen:

Date Completed 31.05.2019

Date Revised 31.05.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.ijbiomac.2018.12.230

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM292229070