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Acyclic monoterpenoid-rich essential oil of Cymbopogon distans mitigates skin inflammation: a chemico-pharmacological study

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Abstract

The topical application of essential oils is considered an effective treatment for skin diseases. Cymbopogon distans (Nees ex Steud.) Wats (Poaceae) is a promising aromatic grass widespread in the Himalayan temperate zone. Therefore, using in-vitro and in-vivo bioassays, we examined the chemical and pharmacological characteristics of essential oil hydro-distilled from C. distans coded as CDA-01, specifically concerning skin inflammation. Characterization using GC-FID and GC–MS provided a chemical fingerprint for CDA-01, enabling the identification of 54 compounds; amongst them, citral (34.3%), geranyl acetate (21.2%), and geraniol (16.4%) were the most abundant. To examine the anti-inflammatory potential, CDA-01 treatment on LPS-stimulated macrophage cells in addition to 12-O-tetradecanoylphorbol-13-acetate (TPA) generated cutaneous inflammatory reaction in the mouse ear was assessed through quantification of the inflammatory markers. Consequently, CDA-01 demonstrated protection against inflammation caused by LPS by lowering the pro-inflammatory cytokines (IL-6 and TNF-α) level in HaCaT cells with negligible cytotoxicity. Consistent with the in-vitro findings, CDA-01 treatment reduced pro-inflammatory mediators (TNF-, IL-6, and NO) and lipid peroxidation in an in-vivo investigation. Subcutaneous inflammation in TPA-treated mice ears was similarly decreased, as evidenced by the histological and morphological studies. As a result of our findings, it is possible that CDA-01 could be an effective treatment for skin inflammation disorders.

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The data and materials for this study are available from the corresponding author upon reasonable request.

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Acknowledgements

CSIR-CIMAP supported the present study financially under the Aroma Mission Project (HCP-0007). Additionally, the first author thanks the Department of Science and Technology (DST), New Delhi, India, for the DST/INSPIRE Fellowship [IF170937]. The authors are appreciative of the Institute Director's gracious support as the work has progressed.

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DB: actual experimentation, recording of observation and manuscript preparation (biological activity). SS: actual experimentation, recording of observation, analysis and manuscript preparation (chemistry). MKS: analysis and manuscript preparation. AKM: histopathological analysis. AC: maintenance of plant in the field and botanical authentication. RCP: extraction and analysis. RSV: planning, analysis and manuscript preparation. DUB: planning, analysis and manuscript preparation.

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Correspondence to Ram Swaroop Verma or Dnyaneshwar U. Bawankule.

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Bhatt, D., Singh, S., Singh, M.K. et al. Acyclic monoterpenoid-rich essential oil of Cymbopogon distans mitigates skin inflammation: a chemico-pharmacological study. Inflammopharmacol 32, 509–521 (2024). https://doi.org/10.1007/s10787-023-01302-0

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  • DOI: https://doi.org/10.1007/s10787-023-01302-0

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