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Published on: September 1, 2023
Evaluation of cytokines expression in the phytoflavonoids treated epileptic rats: An in vivo study
Hammad Ahmed1, Mahtab Ahmad Khan2
1Faculty of Pharmacy, The University of Lahore, Lahore, Pakistan.
Abstract:
Seizure are basic characteristic of epilepsy; these initiate due to irregular, excessive and synchronous electrical discharges. We aimed to determine the antiepileptic potential of phyto-flavonoids on the evaluation of the mRNA expression of TNF-α, IL-6, IL-1 Beta, IL-10, IL-1Ra, IL 4 and NF-κB. We induced chronic epilepsy in rats by administering sub-convulsive dose of pentylenetetrazole (25 mg/kg/day for 28 days). We observed intensity and frequency of seizures. Levetiracetam was used as a standard drug and divided all the subjects into 6 groups. All experimental animals were trained to acclimatize the behaviour tests. Food and water intake, changes in the body weight and WBC levels were assessed. Using qPCR, we assessed mRNA expression levels of, TNF α, IL-6, IL1 beta, NF-κB, IL1Ra, IL-4, and IL-10. qPCR confirmed the down regulation of the pro- and up-regulation of the anti-inflammatory cytokines. Significant reduction in seizure frequency, neutrophil counts and improvement in behaviour were observed when compared treatment group to control groups. PF exerts their antiepileptic activity by the downregulation of pro- and upregulation of anti-inflammatory cytokines respectively.
Insights
Phyto-flavonoids demonstrate antiepileptic potential by modulating inflammatory responses. This study found they reduce seizure frequency and improve behavior in epilepsy models by altering cytokine expression.
Area of Science:
- Neuroscience
- Pharmacology
- Immunology
Background:
- Epilepsy is characterized by seizures, resulting from abnormal brain electrical activity.
- Inflammatory processes, involving cytokines like TNF-α and IL-6, are implicated in epilepsy pathogenesis.
- Phyto-flavonoids are plant-derived compounds with potential therapeutic properties.
Purpose of the Study:
- To investigate the antiepileptic effects of phyto-flavonoids.
- To evaluate the impact of phyto-flavonoids on the mRNA expression of key inflammatory markers in an epilepsy model.
Main Methods:
- Chronic epilepsy was induced in rats using pentylenetetrazole.
- Phyto-flavonoids and levetiracetam (standard drug) were administered to different groups.
- Seizure frequency, intensity, behavioral tests, and mRNA expression of TNF-α, IL-6, IL-1β, IL-10, IL-1Ra, IL-4, and NF-κB were assessed using qPCR.
Main Results:
- Phyto-flavonoids significantly reduced seizure frequency and improved behavioral outcomes.
- Treatment led to downregulation of pro-inflammatory cytokines (TNF-α, IL-6, IL-1β, NF-κB) and upregulation of anti-inflammatory cytokines (IL-10, IL-1Ra, IL-4).
- A reduction in neutrophil counts was also observed in the treatment groups.
Conclusions:
- Phyto-flavonoids exhibit significant antiepileptic activity.
- Their mechanism involves the modulation of inflammatory pathways, specifically by downregulating pro-inflammatory and upregulating anti-inflammatory cytokine expression.
- Phyto-flavonoids represent a promising therapeutic strategy for epilepsy.

