Impact of brief exposure to antifungal agents on the post-antifungal effect and hemolysin activity of oral Candida albicans

نویسندگان

  • Arjuna Nishantha ELLEPOLA
  • Rana KHAJAH
  • Sumedha JAYATILAKE
  • Lakshman SAMARANAYAKE
  • Prem SHARMA
  • Zia KHAN
چکیده

Post-antifungal effect (PAFE) of Candida and its production of hemolysin are determinants of candidal pathogenicity. Candida albicans is the foremost aetiological agent of oral candidosis, which can be treated with polyene, azole, and echinocandin antifungals. However, once administered, the intraoral concentrations of these drugs tend to be subtherapeutic and transient due to the diluent effect of saliva and cleansing effect of the oral musculature. Hence, intra-orally, Candidamay undergo a brief exposure to antifungal drugs.Objective Therefore, the PAFE and hemolysin production of oral C. albicans isolates following brief exposure to sublethal concentrations of the foregoing antifungals were evaluated.Material and Methods A total of 50 C. albicans oral isolates obtained from smokers, diabetics, asthmatics using steroid inhalers, partial denture wearers and healthy individuals were exposed to sublethal concentrations of nystatin, amphotericin B, caspofungin, ketoconazole and fluconazole for 60 min. Thereafter, the drugs were removed and the PAFE and hemolysin production were determined by previously described turbidometric and plate assays, respectively.Results Nystatin, amphotericin B, caspofungin and ketoconazole induced mean PAFE (hours) of 2.2, 2.18, 2.2 and 0.62, respectively. Fluconazole failed to produce a PAFE. Hemolysin production of these isolates was suppressed with a percentage reduction of 12.27, 13.47, 13.33, 8.53 and 4.93 following exposure to nystatin, amphotericin B, caspofungin, ketoconazole and fluconazole, respectively.Conclusions Brief exposure to sublethal concentrations of antifungal drugs appears to exert an antifungal effect by interfering with the growth as well as hemolysin production of C. albicans.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Study of Antifungal effect of Punica Granatum alcoholic extract on Candida Albicans (invitro study)

Abstract Background & Aim: Oral diseases affect the majority of the population and can affect a person’s overall health. It is reported that punicagranutum contain phytomedicinecapabale  of  suppressing oral pathogens associated with fungal diseases. The aim of this study is the assessement of punicagranutm extract antifungal activity on Candida albicans. Material and methods: This study was pe...

متن کامل

Post Antifungal Effect, Phospholipase and Aspartyl Proteinase Production of Candida Albicans Oral Isolates following Exposure to Chlorhexidine

No: 69 (Poster) Health and Hygiene 238 POST ANTIFUNGAL EFFECT, PHOSPHOLIPASE AND ASPARTYL PROTEINASE PRODUCTION OF CANDIDA ALBICANS ORAL ISOLATES FOLLOWING EXPOSURE TO CHLORHEXIDINE A.N.B. Ellepola*, B.K. Joseph, Z.U. Khan and J.A.M.S. Jayatilake Health Sciences Centre, Kuwait University, Kuwait Faculty of Dental Sciences, University of Peradeniya, Sri Lanka *[email protected] An important viru...

متن کامل

Antifungal and post-antifungal effects of chlorhexidine, fluconazole, chitosan and its combinations on Candida albicans.

OBJECTIVE The aim of this work was to assess the antifungal and post-antifungal effects of chlorhexidine, fluconazole, chitosan and its combinations on virulence factors of Candida albicans. STUDY DESIGN Ten isolated strains of Candida albicans obtained from 10 patients with oral candidiasis and a collection strain of C. albicans were treated with antifungal agents in different concentrations...

متن کامل

Inhibitory Effect of Curcumin on Candida-albicans compared with Nystatin: an in-vitro Study

Introduction: Curcumin is the active ingredient in the traditional herbal remedy and dietary spice turmeric (Curcuma longa). Curcumin has a surprisingly wide range of beneficial properties, including anti-inflammatory, antioxidant, chemopreventive and chemotherapeutic activity. on basis of recent studies; it has antifungal and antibacterial effects. The aim of this study was in-vitro evaluation...

متن کامل

EvaluationEvaluation of antifungal activity of essential oil of Carvacrol on standard Fluconazole sensitive and resistance strains of Candida albicans

Abstract Background and objectives: Candida albicans is a human opportunistic fungus causing mucosal and systemic infections in immunocompromised individuals. There is evidence of increasing resistance to antifungal agents, thus it is necessary to search about new formulations for finding the antifungal agents. Some plants have antimicrobial properties due to presence of components such as poly...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 23  شماره 

صفحات  -

تاریخ انتشار 2015