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. 2024 Oct;38(10):e5968.
doi: 10.1002/bmc.5968. Epub 2024 Jul 22.

Phytochemical profile and pharmacological potential of Withania somnifera whole plant extracts

Ayaz Ali Sher  1 , Arshad Iqbal  1 , Muhammad Adil  2 , Zamarud Shah  3 , Zahid Ali Butt  4 , Sami Ullah  5 , Muhammad Nafees  5 , Saima Sohni  6
Affiliations

Phytochemical profile and pharmacological potential of Withania somnifera whole plant extracts

Ayaz Ali Sher et al. Biomed Chromatogr. 2024 Oct.

Abstract

Withania somnifera belongs to the family Solanaceae, commonly called ashwagandha, and is traditionally used as an astringent, hepatoprotective and antioxidant, and as a treatment for rheumatism. Therefore the current study aimed to explore the dichloromethane fraction of W. somnifera whole plant (DCFWS) and ethyl acetate fraction of W. somnifera (EAFWS) using gas chromatoghraphy-mass spectrometry (GC-MS) analysis and to find the acetylcholinesterase inhibition potential along with spasmolytic activity. The GC-MS-detected phytochemicals were 2,4-bis(1,1-dimethylethyl), hexadecanoic acid, 1-nonadecene and 11-octadecenoic acid. The DCFWS and EAFWS exhibited acetylcholinesterase inhibitory potential with significant inhibitory concentration values. The acute toxicity results of both fractions showed high toxicity, causing emesis at 0.5 g and both emesis and diarrhea at 1 g/kg. Both fractions exhibited significant (p ≤ 0.01) laxative activity against metronidazole (7 mg/kg) and loperamide hydrochloride (4 mg/kg) induced constipation. Both DCFWS (66.8 ± 3.85%) and EAFWS (58.58 ± 3.28%) significantly (p ≤ 0.05) increased charcoal movement compared with distal water (43.93 ± 4.34%). Similarly the effect of DCFWS on KCl-induced (80 mm) contraction was more significant as compared with EAFWS. It was concluded that the plant can be used in the treatment of gastrointestinal tract diseases such as constipation. Furthermore, additional work is required in the future to determine the bioactive compounds that act as therapeutic agents in W. somnifera.

Keywords: antispasmodic potential; ashwagandha; gas chromatography–mass spectroscopy; laxative activity; phytochemical profile.

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References

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