Chrysanthemum zawadskii Flower Extract Rescues Inflammatory Cognitive Impairment.

Area of Science:

• Pharmacology
• Neuroscience
• Natural Products Chemistry

Background:

• Cognitive impairment is often linked to neuroinflammation.
• Developing natural therapeutics for cognitive deficits is a key research area.

Purpose of the Study:

• To evaluate the neuroprotective potential of Chrysanthemum zawadskii flower ethanol extract (CZ-F).
• To investigate CZ-F's effects on inflammation, oxidative stress, and cognitive function.

Main Methods:

• In vitro studies using LPS-stimulated BV2 microglial cells to assess anti-inflammatory and antioxidant effects.
• In vivo studies using a zebrafish model to evaluate learning and memory.
• Analysis of key compounds like quercetin, luteolin, and linarin.

Main Results:

• CZ-F exhibited significant antioxidant activity and suppressed inflammatory markers (ROS, NO, iNOS, IL-1β) potentially via the NF-κB pathway.
• CZ-F reduced acetylcholinesterase (AChE) expression and activity.
• Quercetin, luteolin, and linarin were identified as key active compounds.
• CZ-F treatment improved learning and memory in zebrafish subjected to sleep deprivation.

Conclusions:

• CZ-F demonstrates potent anti-neuroinflammatory and antioxidant properties.
• CZ-F modulates cholinergic dysfunction and ameliorates cognitive deficits.
• Chrysanthemum zawadskii extract is a promising candidate for treating inflammation-associated cognitive impairment.