*Result*: Plumbagin Ameliorate 5-Fluorouracil-Induced Cognitive Impairment in Adult Zebrafish: In-silico and In-vivo Evidences.

Title:
Plumbagin Ameliorate 5-Fluorouracil-Induced Cognitive Impairment in Adult Zebrafish: In-silico and In-vivo Evidences.
Authors:
Prasad S; Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India.; ICFAI School of Pharmaceutical Sciences, The ICFAI University, Jaipur, Rajasthan, India., Sarkar B; Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India., Chowdhury KR; Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India., Rathee A; ICFAI School of Pharmaceutical Sciences, The ICFAI University, Jaipur, Rajasthan, India., Singh C; Department of Pharmaceutical Sciences, Maharshi Dayanand University, Rohtak, Haryana, 124001, India., Singh A; Department of Pharmacology, ISF College of Pharmacy, Moga, Punjab, 142001, India. artiniper@gmail.com.; Department of Pharmaceutical Sciences, School of Health Science and Technology, University of Petroleum and Energy Studies - UPES, Dehradun, Uttarakhand, 248007, India. artiniper@gmail.com.
Source:
Molecular neurobiology [Mol Neurobiol] 2026 Jan 26; Vol. 63 (1), pp. 395. Date of Electronic Publication: 2026 Jan 26.
Publication Type:
Journal Article
Language:
English
Journal Info:
Publisher: Humana Press Country of Publication: United States NLM ID: 8900963 Publication Model: Electronic Cited Medium: Internet ISSN: 1559-1182 (Electronic) Linking ISSN: 08937648 NLM ISO Abbreviation: Mol Neurobiol Subsets: MEDLINE
Imprint Name(s):
Original Publication: Clifton, NJ : Humana Press, c1987-
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Contributed Indexing:
Keywords: 5-Fluorouracil; Chemotherapy Cognitive impairment; Donepezil; Neuroinflammation; Oxidative stress; Plumbagin; Zebrafish
Substance Nomenclature:
YAS4TBQ4OQ (plumbagin)
U3P01618RT (Fluorouracil)
0 (Naphthoquinones)
Entry Date(s):
Date Created: 20260126 Date Completed: 20260126 Latest Revision: 20260126
Update Code:
20260130
DOI:
10.1007/s12035-026-05668-4
PMID:
41586941
Database:
MEDLINE

*Further Information*

*Background: Chemotherapy is a crucial part of cancer treatment, but it has been linked to a set of cognitive impairments. 5-Fluorouracil, a chemotherapeutic drug causing mitochondrial dysfunction and neurodegeneration. This study primarily aimed to evaluate the effect of Plumbagin on mitochondrial dynamics, neuroinflammation and oxidative stress in adult zebrafish subjected to 5-Fluorouracil-induced cognitive impairment.
Material and Methods: In this study, initially in-silico studies were conducted for lead compound identification. For the in-vivo studies, adult zebrafish (~ 6-8 months old; 470-530 mg; 126 animals are used) were randomly assigned to 7 groups and treated with 5-Fluorouracil (25 mg/kg; i.p.) for 1 day followed by post-treated with Plumbagin (10 and 20 mg/kg; i.p.) and Donepezil (5 mg/kg; i.p.) for 6 days. Behavioral, biochemical, molecular, mitochondrial, and histopathological analyses were performed after completion of the study.
Result: In-silico analyses revealed that Plumbagin exhibits stronger binding affinity as compared to 5-Fluorouracil. In vivo findings further demonstrated that post-treatment with Plumbagin significantly mitigates oxidative stress markers, reduces neuroinflammatory cytokines, and enhances mitochondrial functioning (mitochondrial enzyme complexes, caspases-3, and cellular viability) relative to zebrafish treated with 5-Flurouracil alone. Additionally, Plumbagin treatment led to marked reduction in GSK-3β expression, improvements in mitochondrial structure (as observed through Transmission electron microscopy analysis. Further, post-treatment with Plumbagin significantly improved mitochondrial morphology (as observed through TEM analysis) and neuronal morphology (assessed via Hematoxylin and Eosin staining and Nissl staining) as compared to 5-Fluorouracil -treated zebrafish.
Conclusion: Our findings provide strong evidence that Plumbagin significantly reduced neuroinflammation, provided neuroprotective support, and alleviates cognitive impairment, as demonstrated through in-silico and in-vivo analyses.
(© 2026. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)*

*Declarations. Animal Approval Number: Institutional Biosafety committee (IBSC) with approval number ISFCP/IBSC/M3/2022/33. Clinical Trial Number: Not Applicable. Competing Interest: The authors declare no competing interests.*