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Susceptibilities of Malassezia strains from pityriasis versicolor, Malassezia folliculitis and seborrheic dermatitis to antifungal drugs

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机构: [a]Department of Dermatology, First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Kunming, Yunnan 650032, China [b]Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, Caolang Road, Jinshan District, Shanghai, 2901, China [c]Department of Dermatology, Zigong First People's Hospital, Zigong, Sichuan, China [d]Yantai Affiliated Hospital of Binzhou Medical University, Shandong, China
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关键词: Antifungal drugs Clinical genetics Gastrointestinal system Infectious disease Malassezia Malassezia folliculitis Pathology Pityriasis versicolor Public health Seborrheic dermatitis

摘要:
The human pathogenic yeast genus Malassezia may be an etiological agent of skin disorders and has received considerable attention from dermatologists in recent years. To investigate the different susceptibilities of Malassezia species to four antifungal drugs, we isolated a total of 244 Malassezia strains and identified six species of Malassezia from patients with clinical skin diseases. The minimum inhibitory concentration (MIC) of the four antifungal drugs was obtained by comparing the susceptibility of the isolated Malassezia strains to four antifungal drugs (ketoconazole (KTZ), itraconazole (ITZ), fluconazole (FLC) and amphotericin B (Am B)). We demonstrated that M. furfur, M. sympodialis, M. pachydermatis and M. globosa are the most common Malassezia species in the three skin diseases. The MICs of KTZ, ITZ, FLC and Am B against M. furfur, M. sympodialis, M. pachydermatis and M. globosa ranged from 0.03 - 16 mg/L, 0.03 - 2.0 mg/L, 0.03 - 8 mg/L, and 13 - 64 mg/L, respectively. The sensitivities of Malassezia to the four antifungal drugs from high to low were ITZ ≥ KTZ > Am B > FLC. The susceptibilities of the various Malassezia species to the four antifungal drugs were different, and the susceptibility of M. furfur to KTZ was significantly different from those of the three skin diseases (pityriasis versicolor, Malassezia folliculitis and seborrheic dermatitis). Our results suggested that the MIC analysis of the four antifungal drugs would be helpful in preventing drug resistance in the clinical screening of Malassezia and choosing better antifungal drugs to treat Malassezia-associated skin diseases. © 2020 The Author(s)

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大类 | 3 区 综合性期刊
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Q1 MULTIDISCIPLINARY SCIENCES

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第一作者机构: [a]Department of Dermatology, First Affiliated Hospital of Kunming Medical University, 295 Xichang Road, Kunming, Yunnan 650032, China [b]Scientific Research Center, Shanghai Public Health Clinical Center, Fudan University, Caolang Road, Jinshan District, Shanghai, 2901, China [c]Department of Dermatology, Zigong First People's Hospital, Zigong, Sichuan, China
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