Amelioration of Scopolamine-Induced Cognitive Dysfunction in Experimental Mice Using the Medicinal Plant Salvia moorcroftiana
Open accessAbstract
Salvia moorcroftiana is medicinally used in various parts of the world to treat a number of diseases. In the literature, the antiamnesic activity of this plant has not yet been reported. Therefore, the current study was aimed at evaluating the in vivo antiamnesic (scopolamine-induced) potential of Salvia moorcroftiana. The major phytochemical groups such as total phenolic (TPC), total tannin (TTC), and total flavonoid content (TFC) in methanolic extract (SlMo-Crd) and subsequent fractions of Salvia moorcroftiana were quantified using standard methods. The in vitro anticholinesterase (against butyryl cholinesterase; BChE and acetylcholinesterase; AChE) and antioxidant (against 2,2-diphenyl-1-picrylhydrazyl; DPPH and 2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid); ABTS free radicals) potentials of crude (SIMO-Crd) extract and fractions (hexane; SlMo-Hex, chloroform; SlMo-Chl, ethyl acetate; SlMo-Et) were also determined. The SlMo-Crd at doses of 100 and 200 mg/kg body weight compared to fractions of 75 and 150 mg/kg body weight (which were 1/10th of the highest dose tested in acute toxicity tests) were evaluated for their memory enhancement and learning behavior in normal and scopolamine-induced mental dysfunction in mice using behavioral memory tests such as the Y-maze test and novel object recognition test (NORT). Moreover, the samples were further evaluated for acetylcholine contents and biochemical markers such as MDA (malondialdehyde), SOD (superoxide dismutase), CAT (catalase), and GSH (glutathione peroxidase) levels. The maximum TPC with a value of 114.81 ± 1.15 mg GAE/g, TTC with a value of 106.79 ± 1.07 mg GAE/g, and TFC with a value of 194.29 ± 0.83 mg RE/g were recorded for the SlMo-Chl fraction. Against the DPPH free radical, the methanolic extract exhibited an IC50 value of 95.29 ± 1.06 µg/mL whereas, among the fractions, the best activity was observed for the SlMo-Chl fraction with an IC50 of 75.02 ± 0.91 µg/mL, followed by SlMoS-Et with an IC50 value of 88.71 ± 0.87 µg/mL. Among the extracts, the SlMo-Chl and SlMo-Et fractions inverted the amnesic effects of scopolamine in mice effectively. Additionally, the SlMo-Chl and SIMO-Et fractions considerably enhanced the percent spontaneous alteration performance in the Y-maze test with values of 65.18 ± 2.61/69.51 ± 2.71 and 54.92 ± 2.49/60.41 ± 2.69, respectively, for the tested doses. The discrimination index (DI) in experimental mice was considerably enhanced by the SlMo-Chl in the NORT with values of 59.81 ± 1.21/61.22 ± 1.31% DI correspondingly for the tested doses, as mentioned above, followed by the SlMo-Et extract. The selected plant in the form of extracts ameliorated the effects of amnesia in mice and could, therefore, be used as a therapy for amnesia; however, this is subject to further exploration in other animal models and the isolation of the responsible compounds.
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Extracts from Nepeta nuda, Indigofera sessiliflora, Dendropanax morbifera, Pinus densiflora, Dichrocephala integrifolia, Alnus rugosa, Salvia moorcroftiana, and Sanguisorba minor reduced AChE activity and enhanced cognitive function in scopolamine-induced memory impairment models.
“Other studies on plant extracts like Nepeta nuda, Indigofera sessiliflora, Dendropanax morbifera, Pinus densiflora, Dichrocephala integrifolia, Alnus rugosa, Salvia moorcroftiana, and Sanguisorba minor have similarly reported reduced AChE activity and enhanced cognitive function in SCO-induced memory impairment models [40,41,42,43,44,45,46,47].”
From Cholinesterase Inhibitors from Plants and Their Potential in Alzheimer’s Treatment: Systematic Review (2025) · cites this paper as [45]
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ALNasser, M. N., Alboraiy, G. M., Alsowig, E. M., & Alqattan, F. M. (2025) · Brain Sciences · doi:10.3390/brainsci15020215 · Cited by 35 · see citing works
- Authors
- Wahid, F., Jan, T., Al-Joufi, F. A., Ali Shah, S. W., Nisar, M., & Zahoor, M.
- Affiliations
- University of Malakand (PK)
- Department of Pharmacology, College of Pharmacy, Jouf University, Sakaka 72341, Aljouf, Saudi Arabia
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Pakistan
- Corresponding author
- Jan, Tour
- Zahoor, Muhammad
- Venue
- Brain Sciences
- Publisher
- MDPI AG
- Published
- 2022-07-07
- Volume
- 12
- Issue
- 7
- Pages
- 894
- ISSN
- 2076-3425 (ISSN-L)
- PMC
- PMC9320495
- OpenAlex
- W4284888963
- Cited by
- 10
- References
- 65
- Citations by year
- 2026: 1 · 2025: 4 · 2024: 1 · 2023: 3 · 2022: 1
- FWCI
- 2.35
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Brain Sciences (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
- Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plant Extracts Effects
- Life Sciences › Agricultural and Biological Sciences › Plant Science › Medicinal Plant Research
- Keywords
- antiamnesic activity, anticholinesterase activity, antioxidant activity, memory enhancement, learning behavior, acetylcholine, oxidative stress, phytochemicals, medicinal plants, mice, Y-maze, acetylcholinesterase, butyrylcholinesterase
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