In vivo activity of terpinen-4-ol, the main bioactive component of Melaleuca alternifolia Cheel (tea tree) oil against azole-susceptible and -resistant human pathogenic Candida species
2006

Effect of Tea Tree Oil Component on Candida Infections

Sample size: 49 publication 10 minutes Evidence: moderate

Author Information

Author(s): Mondello Francesca, De Bernardis Flavia, Girolamo Antonietta, Cassone Antonio, Salvatore Giuseppe

Primary Institution: Istituto Superiore di Sanità

Hypothesis

The study aims to investigate the in vitro and in vivo anti-Candida activity of terpinen-4-ol and 1,8-cineole, two critical bioactive constituents of tea tree oil.

Conclusion

Terpinen-4-ol is effective in controlling C. albicans vaginal infections, including azole-resistant forms.

Supporting Evidence

  • Terpinen-4-ol showed a minimal inhibitory concentration (MIC90) of 0.06% against Candida strains.
  • In vivo, terpinen-4-ol was as effective as tea tree oil in clearing Candida infections in rats.
  • The study demonstrated that terpinen-4-ol could control both azole-susceptible and azole-resistant Candida infections.

Takeaway

This study found that a natural oil component called terpinen-4-ol can help fight a type of yeast infection, even when the yeast is resistant to common medicines.

Methodology

The study used oophorectomized rats with induced vaginal infections to test the antifungal activity of terpinen-4-ol and 1,8-cineole against various Candida strains.

Limitations

The study was conducted in a rat model, which may not fully replicate human responses.

Participant Demographics

Oophorectomized female Wistar rats were used in the study.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2334-6-158

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