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Anti-Candida and anti-Cryptococcus evaluation of 15 non-alkaloidal compounds from Pterogyne nitens
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作者 Caroline Sprengel Lima carlos roberto polaquini +8 位作者 Mariana Bastos dos Santos Fernanda Patricia Gullo Fernanda Sangalli Leite Liliane Scorzoni Vanderlan da Silva Bolzani Maria Jose Soares Mendes-Giannini Ana Marisa Fusco-Almeida Andréia Alves Rezende Luis Octavio Regasini 《Asian Pacific Journal of Tropical Biomedicine》 CAS 2016年第10期841-845,共5页
Objective: To evaluate anti-Candida and anti-Cryptococcus activities of 15 nonalkaloidal compounds from Pterogyne nitens Tulasne(Leguminosae), a South American medicinal plant.Methods: Compounds were submitted to anti... Objective: To evaluate anti-Candida and anti-Cryptococcus activities of 15 nonalkaloidal compounds from Pterogyne nitens Tulasne(Leguminosae), a South American medicinal plant.Methods: Compounds were submitted to antifungal assays, using microdilution method described by Clinical and Laboratory Standards Institute document, with minor modifications. Five species of Candida and two species of Cryptococcus, including clinical isolates were screened. Antifungal activity was expressed by minimum inhibitory concentration(MIC). Amphotericin B and fluconazole were used as standard antifungal drugs.Results: Among tested compounds, six substances presented fungal growth inhibition(MIC < 31.2 mg/m L) [three flavone derivatives(1–3), a glycosylated flavonol derivative(5)and two phenolic acids(10 and 12)]. Sorbifolin(1), exhibited potent antifungal activity,demonstrating MIC value of 3.90 mg/m L against Candida glabrata ATCC 90030, Cryptococcus gattii 118 and fluconazole-resistant clinical isolate of Cryptococcus neoformans var. grubii. Pedalin(2) and nitensoside B(3), two glycosylated flavone derivatives, were active against Cryptococcus neoformans ATCC 90012(MIC = 7.80 mg/m L).Conclusions: Flavone derivatives from Pterogyne nitens can serve as prototypes for the design and development of innovative anti-Candida and anti-Cryptococcus hits. 展开更多
关键词 CANDIDA CRYPTOCOCCUS ANTIFUNGAL Pterogyne nitens Flavonoid Opportunistic fungi
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