Cited by 29Medicinal Plants and NeuroprotectionCholinesterase and Neurodegenerative DiseasesBioactive Compounds in Plants

Improvement of cognitive function in mice by Citrus reticulata var. kinnow via modulation of central cholinergic system and oxidative stress

Pruthi, Simran, Kaur, Karanpreet, Singh, Varinder, Shri, Richa·2021·Metabolic Brain Disease

Abstract

Memory disorders are a result of a number of factors, of which elevated brain oxidative stress and acetylcholinesterase (AChE) activity are significant hallmarks. A number of Citrus species have cognition-enhancing capacity mediated by their antioxidant and anti-cholinesterase activities. This study was designed to assess the cognitive-enhancing, antioxidant and anticholinesterase potentials of Citrus reticulata var. kinnow (CR) leaf extracts. CR extracts were examined by bioactivity guided fractionation using in-vitro DPPH and Ellman assays to determine antioxidant and AChE inhibitory capacity. The most active component was further evaluated for memory improvement effects using mouse model of scopolamine induced amnesia. Passive shock avoidance test and elevated plus maze test were employed to determine cognitive functions while brain biochemical parameters were measured to establish the neuroprotective mechanism. The methanol extract (ME) showed marked AChE inhibitory and antioxidant activities, therefore, it was fractionated. Comparative analysis of all obtained fractions revealed that ethylacetate fraction (EAF) was most active. Both ME and EAF improved cognitive dysfunction caused by scopolamine in mice by reducing TBARS levels and brain AChE activity. TLC densitometric studies showed appreciable levels of naringenin in ME (0.32 % w/w) and EAF (1.14 % w/w). The observed memory enhancement effects of ME and EAF could be attributed to their ability to inhibit AChE activity and antioxidant effects due to presence of flavonoids.

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Crossref · 10.1007/s11011-021-00687-7

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57 of 57 references verified0 citation errors · 0 not checkable

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  • Extracts from Amygdalus spinosissima roots, Peganum harmala, Trianthema portulastrum, Centella asiatica, Citrus reticulata, and Cudrania tricuspidata reduced AChE activity and improved cognitive function in scopolamine-treated mice.

    “Extracts from Amygdalus spinosissima roots, Peganum harmala, Trianthema portulastrum, Centella asiatica, and other plants, including Citrus reticulata and Cudrania tricuspidata, have also shown promising results in reducing AChE activity and improving cognitive function in SCO-treated mice [30,31,32,33,34,35].”

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Authors
Pruthi, S., Kaur, K., Singh, V., & Shri, R.
Affiliations
  • Maharishi Markandeshwar University, Mullana (IN)
  • Punjabi University (IN)
  • Chitkara University (IN)
Corresponding author
  • Singh, Varinder
  • Shri, Richa
Venue
Metabolic Brain Disease
Published
2021-03-02
Volume
36
Issue
5
Pages
901-910
ISSN
  • 0885-7490 (ISSN-L)
  • 1573-7365
OpenAlex
W3133832818
Cited by
28
References
57
Citations by year
2026: 3 · 2025: 13 · 2024: 6 · 2023: 2 · 2022: 3 · 2021: 1
FWCI
3.37
Type
journal article
Language
en
Open access
closed
Locations
  • Metabolic Brain Disease (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
  • Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Bioactive Compounds in Plants
Keywords
memory enhancement, acetylcholinesterase inhibition, antioxidant activity, oxidative stress, scopolamine-induced amnesia, naringenin, flavonoids, cholinergic system, neuroprotection, brain lipid peroxidation, ethyl acetate fraction, cognitive impairment
MeSH terms
Acetylcholinesterase, Amnesia, Animals, Antioxidants, Citrus, Cognition, Female, Male, Memory, Plant Extracts, Oxidative Stress, Plant Leaves, Neuroprotective Agents, Mice

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