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- Title
Essential Oil Constituents as Anti-Inflammatory and Neuroprotective Agents: An Insight through Microglia Modulation.
- Authors
Stojanović, Nikola M.; Ranđelović, Pavle J.; Simonović, Maja; Radić, Milica; Todorović, Stefan; Corrigan, Myles; Harkin, Andrew; Boylan, Fabio
- Abstract
Microglia are key players in the brain's innate immune response, contributing to homeostatic and reparative functions but also to inflammatory and underlying mechanisms of neurodegeneration. Targeting microglia and modulating their function may have therapeutic potential for mitigating neuroinflammation and neurodegeneration. The anti-inflammatory properties of essential oils suggest that some of their components may be useful in regulating microglial function and microglial-associated neuroinflammation. This study, starting from the ethnopharmacological premises of the therapeutic benefits of aromatic plants, assessed the evidence for the essential oil modulation of microglia, investigating their potential pharmacological mechanisms. Current knowledge of the phytoconstituents, safety of essential oil components, and anti-inflammatory and potential neuroprotective effects were reviewed. This review encompasses essential oils of Thymus spp., Artemisia spp., Ziziphora clinopodioides, Valeriana jatamansi, Acorus spp., and others as well as some of their components including 1,8-cineole, β-caryophyllene, β-patchoulene, carvacrol, β-ionone, eugenol, geraniol, menthol, linalool, thymol, α-asarone, and α-thujone. Essential oils that target PPAR/PI3K-Akt/MAPK signalling pathways could supplement other approaches to modulate microglial-associated inflammation to treat neurodegenerative diseases, particularly in cases where reactive microglia play a part in the pathophysiological mechanisms underlying neurodegeneration.
- Subjects
ESSENTIAL oils; NEUROPROTECTIVE agents; MICROGLIA; ANTI-inflammatory agents; AROMATIC plants; TERPENES; CARYOPHYLLENE
- Publication
International Journal of Molecular Sciences, 2024, Vol 25, Issue 10, p5168
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms25105168