Protective effect of Cnestis ferruginea and its active constituent on scopolamine-induced memory impairment in mice: A behavioral and biochemical study
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CONTEXT: Cnestis ferruginea Vahl ex DC (Connaraceae) (CF) is used in traditional African medicine in the management of CNS disorders. The degeneration and dysfunction of cholinergic neurons is closely associated with the cognitive deficits of Alzheimer's disease (AD) and oxidative stress has been implicated in its pathogenesis. However, the influence of C. ferruginea on the cholinergic system and oxidative stress parameters has not been explored. OBJECTIVE: The present study investigates the effect of methanol root extract of C. ferruginea and its active constituent amentoflavone (CF-2) on memory, oxidative stress and acetylcholinesterase (AChE) activity in scopolamine-induced amnesia. MATERIALS AND METHODS: Mice were orally treated with CF (25-200 mg/kg), CF-2 (6.25-25 mg/kg) for three days and memory impairment was induced by intraperitoneal injection of scopolamine (3 mg/kg). Memory function was evaluated by passive avoidance and Morris water maze tests. Biochemical parameters of oxidative stress and cholinergic function were estimated in brain after the completion of behavioral studies. RESULTS: Scopolamine caused memory impairment along with increased AChE activity and oxidative stress in mice brain. Oral administration of CF and CF-2 significantly prevented scopolamine-induced memory impairment, inhibited AChE and enhanced antioxidant enzyme activity in the brain following scopolamine injection as compared to vehicle administration in scopolamine (i.p.)-treated mice that were comparable to the effect of tacrine. DISCUSSION AND CONCLUSION: The study demonstrated that C. ferruginea and its constituent have significant protective effect against scopolamine-induced memory deficits in mice that can be attributed to their antioxidant and antiAChE activity.
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Methanolic extracts of Bergenia ciliata, Cnestis ferruginea, and Emblica officinalis significantly reduced AChE activity and improved cognitive functions.
“Studies on the methanolic extracts of Bergenia ciliata, Cnestis ferruginea, and Emblica officinalis also reported significant reductions in AChE activity and improvements in cognitive functions [54,55,56].”
From Cholinesterase Inhibitors from Plants and Their Potential in Alzheimer’s Treatment: Systematic Review (2025) · cites this paper as [56]
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- Authors
- Ishola, I. O., Tota, S., Adeyemi, O. O., Agbaje, E. O., Narender, T., & Shukla, R.
- Affiliations
- University of Lagos (NG)
- Central Drug Research Institute (IN)
- Corresponding author
- Shukla, Rakesh
- Venue
- Pharmaceutical Biology
- Publisher
- Informa UK Limited
- Published
- 2013-04-29
- Volume
- 51
- Issue
- 7
- Pages
- 825-835
- ISSN
- 0925-1618 (ISSN-L)
- 1388-0209
- 1744-5116
- OpenAlex
- W2073697627
- Cited by
- 51
- References
- 45
- Citations by year
- 2025: 3 · 2024: 5 · 2023: 7 · 2022: 5 · 2021: 7 · 2020: 2 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 2 · 2015: 1 · 2014: 3 · 2013: 1
- FWCI
- 5.52
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Pharmaceutical Biology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Central Drug Research Institute
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
- Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Keywords
- Cnestis ferruginea, amentoflavone, scopolamine-induced amnesia, memory impairment, acetylcholinesterase inhibition, oxidative stress, antioxidant enzymes, cholinergic system, Alzheimer's disease, Connaraceae, African traditional medicine, tacrine
- MeSH terms
- Acetylcholinesterase, Administration, Oral, Animals, Antioxidants, Avoidance Learning, Cholinesterase Inhibitors, Disease Models, Animal, Dose-Response Relationship, Drug, Male, Memory Disorders, Plant Extracts, Scopolamine, Tacrine, Medicine, African Traditional, Oxidative Stress, Maze Learning, Connaraceae, Biflavonoids, Mice
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