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Journal of Natural Medicines

, Volume 66, Issue 4, pp 637–644 | Cite as

Citronellol, a monoterpene alcohol, reduces nociceptive and inflammatory activities in rodents

  • Renan G. Brito
  • Adriana G. Guimarães
  • Jullyana S. S. Quintans
  • Marcio R. V. Santos
  • Damião P. De Sousa
  • Daniel Badaue-PassosJr.
  • Waldecy de LuccaJr.
  • Fabíola A. Brito
  • Emiliano O. Barreto
  • Aldeídia P. Oliveira
  • Lucindo J. QuintansJr.Email author
Original Paper

Abstract

We describe the antinociceptive and anti-inflammatory properties of citronellol (CT) in rodents. CT, a monoterpene alcohol, is a naturally occurring monoterpene compound prevalent in essential oils of various aromatic plant species, such as Cymbopogon citratus. In mice, when evaluated against acetic-acid-induced abdominal writhing, CT (25, 50 and 100 mg/kg, i.p.) reduced (P < 0.001) the amount of writhing compared to the control group. In the formalin test, CT also significantly inhibited both the early (neurogenic pain) and the late (inflammatory pain) phases of formalin-induced licking (P < 0.001). When assessed in a thermal model of pain, CT (100 mg/kg, i.p.) caused a significant increase (P < 0.05) in the latency response on the hot-plate test. Such results were unlikely to be caused by motor abnormality. The anti-inflammatory activity of CT was investigated through carrageenan-induced pleurisy in mice. Pretreatment with CT was able to inhibit both neutrophil infiltration and the increase in TNF-α level in the exudates from carrageenan-induced pleurisy. In in vitro experiments, CT (1 and 100 μg/ml) also decreased nitric oxide production by LPS-stimulated macrophage. Together, these results indicate that CT is effective as an analgesic compound in various pain models, with its action probably mediated by the inhibition of peripheral mediators as well as central inhibitory mechanisms that could be related to its strong antioxidant effect observed in vitro.

Keywords

Monoterpenes Citronellol Pain Inflammation TNF-α 

Notes

Acknowledgments

We thank Mr. Osvaldo Andrade Santos for technical support. This work was supported by grants from the National Council of Technological and Scientific Development (Conselho Nacional de Desenvolvimento Científico e Tecnológico/CNPq/Brazil) (grant number 305783/2010-6 and 470774/2011-8) and the Research Supporting Foundation of the State of Sergipe (Fundação de Apoio à Pesquisa e à Inovação Tecnológica do Estado de Sergipe/FAPITEC-SE) (grant number 019.203.00860/2009-6), Brazil.

Conflict of interest

The authors report no conflict of interest.

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Copyright information

© The Japanese Society of Pharmacognosy and Springer 2012

Authors and Affiliations

  • Renan G. Brito
    • 1
  • Adriana G. Guimarães
    • 1
  • Jullyana S. S. Quintans
    • 1
  • Marcio R. V. Santos
    • 1
  • Damião P. De Sousa
    • 1
  • Daniel Badaue-PassosJr.
    • 1
  • Waldecy de LuccaJr.
    • 2
  • Fabíola A. Brito
    • 3
  • Emiliano O. Barreto
    • 3
  • Aldeídia P. Oliveira
    • 4
  • Lucindo J. QuintansJr.
    • 1
    Email author
  1. 1.Department of PhysiologyFederal University of SergipeSão CristóvãoBrazil
  2. 2.Department of MorphologyFederal University of SergipeAracajuBrazil
  3. 3.Laboratory of Cell BiologyFederal University of AlagoasMaceióBrazil
  4. 4.Medicinal Plants Research CenterFederal University of PiauíTeresinaBrazil

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