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KMID : 0370220150590060259
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Yakhak Hoeji
2015 Volume.59 No. 6 p.259 ~ p.265
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Synergistic Antifungal Activity against Disseminated Candidiasis by Combination Therapy of Crataegi Fructus Extract and Fluconazole
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한용문:Han Yong-Moon
저자없음:No authors listed
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Abstract
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In recent, there are increasing reports about pharmacological activities of Crataegi Fructus which has been used for many centuries as medicinal and food sources in East Asia. However, its antifungal efficacy needs to be investigated. Thus, in the current study, we determined synergistic antifungal activity of the Crataegi Fructus extract (CFE) when combined with fluconazole (FLC) against disseminated candidiasis due to Candida albicans. This fungus is one of the most problematic fungal pathogens. Data resulting from a microdilution susceptibility test showed that CFE had a dose-dependent antifungal activity. When the extract was combined with FLC, the activity was synergistic. For example, the antifungal activity by the combination of CFE at 20 μg/ml plus FLC at 0.1 μg/ml was 4 times more effective than antifungal activity by FLC alone at the same concentration (P<0.05). In the murine model of disseminated candidiasis, the combination therapy potentiated
resistance of mice, resulting in 80% of C. albicans-infected animals surviving the entire period of 40 days observation,
whereas mice given CFE alone or FLC alone all died with 17 and 23 days, respectively, although they survived longer than
the untreated control animals (P<0.05). The CFE’s antifungal activity seemed to be related to the blockage of hyphal production of C. albicans yeast cells. In summary, CFE has a synergistic antifungal activity, which can be produced by combining CFE with FLC. Thus, our data strongly indicate that CFE may be a potential candidate as an antifungal agent for combination therapy.
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KEYWORD
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Crataegi Fructus extract, Candida albicans, fluconazole, combination therapy, disseminated candidiasis, synergistic antifungal activity
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