18β-Glycyrrhetinic acid alleviates demyelination by modulating the microglial M1/M2 phenotype in a mouse model of cuprizone-induced demyelination.

Neurosci Lett

Key Laboratory of Combinatorial Biosynthesis and Drug Discovery, Ministry of Education, Wuhan University School of Pharmaceutical Sciences, Wuhan University, Wuhan, Hubei, PR China. Electronic address:

Published: June 2021


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

This research aimed to examine the nutritious supplementary function of 18β-Glycyrrhetinic acid (18β-GA) in moderating the myelin sheath destruction and behavioral impairments observed in the cuprizone model of demyelination. Mice were fed daily on food containing cuprizone (0.3 %) and given doses of 18β-GA (5 or 1 mg/kg) for a period of five weeks. The groups treated with 18β-GA exhibited improvements in exploratory behavior, locomotive activity, and weight. As assessed using luxol-fast blue and myelin basic protein (MBP) staining, which were used to detect demyelination in the brain, 18β-GA both reduced and prevented instances of cuprizone-induced demyelinating lesions; treatment with 18β-GA also caused the MBP level in the corpus callosum to increase. Furthermore, alongside these positive results following 18β-GA treatment, microglial polarisation was also observed to shift towards the beneficial M2 phenotype. The results of this research thus indicate the potential clinical application of 18β-GA for the prevention of myelin damage and behavioral dysfunction.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.neulet.2021.135871DOI Listing

Publication Analysis

Top Keywords

18β-glycyrrhetinic acid
8
18β-ga
7
acid alleviates
4
demyelination
4
alleviates demyelination
4
demyelination modulating
4
modulating microglial
4
microglial m1/m2
4
m1/m2 phenotype
4
phenotype mouse
4

Similar Publications

The interactions of three berberine mid-chain fatty acid salts ([BBR][C], n = 6, 7, 8) with lysozyme (Lyz) are investigated in detail using multi-spectroscopic and molecular docking techniques. Steady-state fluorescence and UV-visible absorption experiments suggest that the binding mechanism of [BBR][C] on Lyz is a static quenching with a binding ratio of 1:1. The compound [BBR][C] exhibits a moderate binding affinity toward Lyz.

View Article and Find Full Text PDF

Pomegranate (Punica granatum L) is a rich source of bioactive compounds, including punicalagin, ellagic acid, anthocyanins, and urolithins, which contribute to its broad pharmacological potential. This review summarizes evidence from in vitro and in vivo experiments, as well as clinical studies, highlighting pomegranate's therapeutic effects in inflammation, metabolic disorders, cancer, cardiovascular disease, neurodegeneration, microbial infections, and skin conditions. Mechanistic insights show modulation of pathways such as nuclear factor-kappa B (NF-κB), mitogen-activated protein kinase (MAPK), alpha serine/threonine-protein kinase (AKT1), and nuclear factor erythroid 2-related factor 2 (Nrf2).

View Article and Find Full Text PDF

Salt stress impairs photosynthetic efficiency and consequently reduces the growth, development, and grain yield of crop plants. The formation of hydrophobic barriers in the root endodermis, including the suberin lamellae and Casparian strips, is a key adaptive strategy for salt stress tolerance. In this study, we identified the role of the rice NAC transcription factor, ONAC005, in salt stress tolerance.

View Article and Find Full Text PDF

Background: Sarcomas are rare cancer with a heterogeneous group of tumors. They affect both genders across all age groups and present significant heterogeneity, with more than 70 histological subtypes. Despite tailored treatments, the high metastatic potential of sarcomas remains a major factor in poor patient survival, as metastasis is often the leading cause of death.

View Article and Find Full Text PDF

Photofunctionalization of Light Alkanes by FeO/BCN at 12 °C.

J Am Chem Soc

September 2025

State Key Laboratory of Chemistry for NBC Hazards Protection, College of Chemistry, Fuzhou University, Fuzhou 350116, P. R. China.

The activation of methane and other gaseous hydrocarbons at low temperature remains a substantial challenge for the chemistry community. Here, we report an anaerobic photosystem based on crystalline borocarbonitride (BCN) supported Fe-O nanoclusters, which can selectively functionalize C-H bonds of methane, ethane, and higher alkanes to value-added organic chemicals at 12 °C. Scanning transmission electron microscopy and X-ray absorption spectroscopy corroborated the ultrafine FeOOH and FeO species in Fe-O clusters, which enhanced the interfacial charge transfer/separation of BCN as well as the chemisorption of methane.

View Article and Find Full Text PDF