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In Vitro and in Vivo Antifungal Activity of Alkanna Tinctoria Against Trichophyton Rubrun and Trichophyton Mentagrophytes Publisher



Saghafi MM1 ; Behi F2 ; Lotfali E3 ; Vosoogh M4 ; Kreft S5 ; Fattahi M6
Authors
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Authors Affiliations
  1. 1. Farmaceutical Care Department, Iran University of Medical Sciences, Tehran, Iran
  2. 2. Islamic Azad University, Science and Research Branch, Tehran, Iran
  3. 3. Department of Medical Parasitology and Mycology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  4. 4. Center of Experimental and Comparative Studies of Iran University of Medical Sciences, Tehran, Iran
  5. 5. Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
  6. 6. Center for Research and Training in Skin Diseases and Leprosy, Tehran University of Medical Sciences, Tehran, Iran

Source: Iranian Journal of Pharmaceutical Sciences Published:2021


Abstract

This study was conducted to investigate the antifungal properties of Alkanna tinctoria extracts against Trichophyton rubrum (PTCC5143), and Trichophyton mentagrophytes (PTCC 5054), and two archived clinical isolates of T. rubrum and T. mentagrophyte. Two reference strains, including T. rubrum (PTCC5143), and T. mentagrophytes (PTCC 5054) (drug-sensitive reference strains), were used, along with two archived clinical isolates of T. rubrum and T. mentagrophytes, which show resistance to terbinafine or fluconazole in vitro and clinic. A topical ointment was formulated using the dried extract of A. tinctoria (20%) roots, Vaseline, beeswax, and sesame oil. The ethanolic and aqueous extracts were prepared from the ointment and assessed for antifungal activity. In vivo antidermatophytic activity of A. tinctoria (20%) ointment was examined in six male Sprague Dawley rats infected by T. mentagrophytes. According to the results, both ethanolic and aqueous extracts showed growth inhibition against tested strains. Moreover, all strains were susceptible to amphotericin B (MIC≤0.5 μg/ml). The lowest fungistatic and fungicidal activities were exhibited by the MIC and MFC values of ethanol extract (both with 0.0125 mg/ml) against T. mentagrophytes, as well as the aqueous extracts against T. rubrum. The application of A. tinctoria (20%) ointment on the rats shortened the complete cure of T. mentagrophytes infection to 7 days compared to the 21-day complete cure using terbinafine. In the present study, A. tinctoria showed significant antifungal properties against clinical isolates of dermatophytes with resistance to azoles and terbinafine. Therefore, it can be considered a promising antifungal agent. © 2021, Iranian Association of Pharmaceutical Scientists. All rights reserved.
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