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Isolation, Characterization and Neuroprotective Activity of Folecitin: An In Vivo Study
Umar Farooq1, Taous Khan1, Shahid Ali Shah2,3
1Department of Pharmacy, Abbottabad Campus, COMSATS University Islamabad, Abbottabad 22060, Pakistan.
Life (Basel, Switzerland)
|August 27, 2021
Summary
Folecitin, a natural flavonoid, shows promise in protecting immature rat brains from alcohol-induced neurodegeneration. It combats oxidative stress and neuroinflammation by deactivating the NLRP3-inflammasome pathway, suggesting potential as a novel therapeutic agent for neurodegenerative diseases.
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Neurodegenerative diseases (NDs) pose a significant global health challenge, with limited treatment options.
- Ethanol consumption and exposure can impair neuronal function, leading to cognitive and behavioral deficits, partly through oxidative stress.
- Natural products, particularly flavonoids, offer potential therapeutic benefits due to their antioxidant and anti-inflammatory properties.
Purpose of the Study:
- To isolate and characterize the flavonoid folecitin from *Hypericum oblongifolium*.
- To evaluate the neuroprotective efficacy of folecitin against ethanol-induced neurodegeneration in a rat pup model.
- To investigate the molecular mechanisms underlying folecitin's effects on oxidative stress and neuroinflammation.
Main Methods:
- Isolation and characterization of folecitin from *Hypericum oblongifolium*.
- Induction of neurodegeneration in postnatal day 7 (PND-7) rat pups using a single dose of ethanol (5 g/kg).
- Co-administration of folecitin (30 mg/kg) with ethanol and assessment of key proteins involved in oxidative stress (p-JNK) and inflammasome activation (NLRP3, ASC, caspase-1, IL-1B), as well as apoptosis markers (caspase-3, BAX, BCL-2, PARP-1).
Main Results:
- Ethanol administration induced significant oxidative stress, p-JNK activation, and NLRP3-inflammasome complex formation, leading to neuroinflammation and neurodegeneration.
- Folecitin co-administration effectively reduced ethanol-induced oxidative stress and inhibited p-JNK activation.
- Folecitin deactivated the NLRP3-inflammasome complex, reduced IL-1B levels, and decreased the expression of pro-apoptotic proteins (caspase-3, BAX, PARP-1) while increasing anti-apoptotic protein (BCL-2) expression.
Conclusions:
- Folecitin, a bioactive flavonoid, demonstrates significant neuroprotective effects against ethanol-induced neurodegeneration in immature rat brains.
- Folecitin exerts its protective action by mitigating oxidative stress, inhibiting JNK signaling, and deactivating the NLRP3-inflammasome pathway.
- Folecitin represents a potential novel, natural, and safe therapeutic agent for managing neuroinflammation and neurodegeneration associated with oxidative stress.
