# Chalcone-based Pyrazoline Derivatives as Modulators of Neuroinflammatory and Redox Pathways in Experimental Epilepsy

**Authors:** Elif Azize Özşahin Delibaş, Zeynep Kasap Acungil, Esra Koç, Şeyma Özsoy

PMC · DOI: 10.1007/s12035-026-05795-y · 2026-03-18

## TL;DR

This study explores how chalcone-based pyrazoline compounds may reduce inflammation and oxidative stress in epilepsy.

## Contribution

The study identifies CCA-334 as a promising compound for targeting oxidative stress and inflammation in epilepsy.

## Key findings

- CCA-326 and CCA-334 significantly reduce NF-κB, COX-2, and 5-LOX levels.
- These compounds increase NRF2 expression and total antioxidant status.
- CCA-334 shows potential for modulating inflammatory and redox pathways in epileptogenesis.

## Abstract

Epilepsy is a chronic neurological condition characterized by complex pathophysiological interactions involving oxidative stress (OS) and neuroinflammation. In this study, the neuroprotective effects of chalcone-based pyrazoline derivatives (CCA-326, CCA-334, CCD-326, and CCD-334) are investigated in a penicillin-induced epilepsy model in rats. The ELISE method is used to measure the effects of these compounds on the plasma and brain levels of cyclooxygenase-2 (COX-2), 5-lipoxygenase (5-LOX), nuclear factor-kappa B (NF-κB), Kelch-like ECH-associated protein 1 (KEAP1), and nuclear factor erythroid 2-related factor 2 (NRF2). Total antioxidant status (TAS) and total oxidant status (TOS) were determined using colorimetric methods. CCA-326 and CCA-334 significantly reduces NF-κB, COX-2, and 5-LOX levels, increases NRF2 expression and TAS levels, and supports the activation of the endogenous antioxidant system by inducing a noticeable decrease in KEAP1 levels. These results suggest that CCA-334 stands out as a promising compound for further investigation targeting oxidative stress and inflammation in epilepsy, and that chalcone-based pyrazoline derivatives may modulate key inflammatory and redox pathways involved in epileptogenesis.

The online version contains supplementary material available at 10.1007/s12035-026-05795-y.

## Linked entities

- **Genes:** COX2 (cytochrome c oxidase subunit II) [NCBI Gene 4513], ALOX5 (arachidonate 5-lipoxygenase) [NCBI Gene 240], NFKB1 (nuclear factor kappa B subunit 1) [NCBI Gene 4790], KEAP1 (kelch like ECH associated protein 1) [NCBI Gene 9817], GABPA (GA binding protein transcription factor subunit alpha) [NCBI Gene 2551]
- **Diseases:** epilepsy (MONDO:0005027)
- **Species:** Rattus norvegicus (taxon 10116)

## Full-text entities

- **Genes:** Keap1 (Kelch-like ECH-associated protein 1) [NCBI Gene 117519] {aka Inrf2}, Nos2 (nitric oxide synthase 2) [NCBI Gene 24599] {aka Nos2a, iNos}, Tnf (tumor necrosis factor) [NCBI Gene 24835] {aka RATTNF, TNF-alpha, Tnfa}, Cpox (coproporphyrinogen oxidase) [NCBI Gene 304024], Lox (lysyl oxidase) [NCBI Gene 24914] {aka H-rev142, Rrg1}, Alox5 (arachidonate 5-lipoxygenase) [NCBI Gene 25290] {aka 5-LOX, LOX5A}, Ptgs2 (prostaglandin-endoperoxide synthase 2) [NCBI Gene 29527] {aka COX-2, Cox2, PGHS-2, PHS II, Pghs2}, Nfkb1 (nuclear factor kappa B subunit 1) [NCBI Gene 81736] {aka EBP-1, NF-kB, NFKB-p50, p50}, Nfe2l2 (NFE2 like bZIP transcription factor 2) [NCBI Gene 83619]
- **Diseases:** neurological disorder (MESH:D009461), seizure (MESH:D012640), Inflammatory (MESH:D007249), neuronal damage (MESH:D009410), condition (MESH:D020763), CCA (MESH:C536211), CCD (MESH:D020512), Neuroinflammatory (MESH:D000090862), neurotoxic (MESH:D020258), cytotoxicity (MESH:D064420), OS (MESH:D000079225), gastrointestinal toxicity (MESH:D005767), epileptiform activity (MESH:D014277), Epilepsy (MESH:D004827)
- **Chemicals:** petroleum ether (MESH:C004544), TMS (MESH:D013932), HCl (MESH:D006851), flavonoid (MESH:D005419), PGE2 (MESH:D015232), sulfur (MESH:D013455), saline (MESH:D012965), Carbodiimides (MESH:D002234), silica (MESH:D012822), water (MESH:D014867), KBr (MESH:C039004), ROS (MESH:D017382), acetophenone (MESH:C038699), arachidonic acid (MESH:D016718), 4-chlorophenyl isocyanate (MESH:C452229), PBS (MESH:D007854), urethane (MESH:D014520), Penicillin (MESH:D010406), methanol (MESH:D000432), 4-methoxy acetophenone (MESH:C046029), Chalcones (MESH:D047188), Pyrazoles (MESH:D011720), NaOH (MESH:D012972), cardamonin (MESH:C436747), Thiosemicarbazide (MESH:C005151), lipid (MESH:D008055), Na2SO4 (MESH:C012036), VPA (MESH:D014635), diethyl ether (MESH:D004986), ketone (MESH:D007659), 2H (MESH:D003903), CCA-334 (-), 4-chloroacetophenone (MESH:C017838), Hydrazine (MESH:C029424), Chalcone (MESH:D002599), hydrogen (MESH:D006859), prostaglandin (MESH:D011453), semi-carbazide (MESH:C010059), 13C (MESH:C000615229), thiol (MESH:D013438), CHCl3 (MESH:D002725), Penicillin-G (MESH:D010400), Pyrazole (MESH:C031280), leukotriene (MESH:D015289), ethanol (MESH:D000431), oxygen (MESH:D010100), 3H (MESH:D014316), thiophene-2-carbaldehyde (MESH:C509177)
- **Species:** Rattus norvegicus (brown rat, species) [taxon 10116], Homo sapiens (human, species) [taxon 9606]
- **Cell lines:** CCD-334 — Homo sapiens (Human), Induced pluripotent stem cell (CVCL_JR28), CCD-326 — Homo sapiens (Human), 49,XXXXY syndrome, Finite cell line (CVCL_D341), CCA-326 — Homo sapiens (Human), Embryonal rhabdomyosarcoma, Cancer cell line (CVCL_N717)

## Figures

8 figures with captions in the complete paper: https://tomesphere.com/paper/PMC12999772/full.md

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Source: https://tomesphere.com/paper/PMC12999772