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Melchor-Martínez EM, Tamez-Fernández JF, González-González GM, Silva-Mares DA, Waksman-Minsky N, Pérez-López LA, Rivas-Galindo VM. Active Flavonoids from Colubrina greggii var. greggii S. Watson against Clinical Isolates of Candida spp. Molecules 2021; 26:5760. [PMID: 34641305 PMCID: PMC8510013 DOI: 10.3390/molecules26195760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/03/2021] [Accepted: 09/15/2021] [Indexed: 11/16/2022] Open
Abstract
Candida albicans is the most commonly implicated agent in invasive human fungal infections. The disease could be presented as minimal symptomatic candidemia or can be fulminant sepsis. Candidemia is associated with a high rate of mortality and high healthcare and hospitalization costs. The surveillance programs have reported the distribution of other Candida species reflecting the trends and antifungal susceptibilities. Previous studies have demonstrated that C. glabrata more frequently presents fluconazole-resistant strains. Extracts from Mexican plants have been reported with activity against pulmonary mycosis, among them Colubrina greggii. In the present study, extracts from the aerial parts (leaves, flowers, and fruits) of this plant were evaluated against clinical isolates of several species of Candida (C. albicans, C. glabrata, C. parapsilosis, C. krusei, and C. tropicalis) by the broth microdilution assay. Through bioassay-guided fractionation, three antifungal glycosylated flavonoids were isolated and characterized. The isolated compounds showed antifungal activity only against C. glabrata resistant to fluconazole, and were non-toxic toward brine shrimp lethality bioassay and in vitro Vero cell line assay. The ethyl acetate and butanol extracts, as well as the fractions containing the mixture of flavonoids, were more active against Candida spp.
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Affiliation(s)
- Elda M. Melchor-Martínez
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, Nuevo León, Mexico
| | - Juan F. Tamez-Fernández
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
| | - Gloria María González-González
- Departamento de Microbiología, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico;
| | - David A. Silva-Mares
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
| | - Noemí Waksman-Minsky
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
| | - Luis Alejandro Pérez-López
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
| | - Verónica M. Rivas-Galindo
- Departamento de Química Analítica, Facultad de Medicina, Universidad Autonoma de Nuevo Leon, Av. Madero s/n, Colonia Mitras Centro, Monterrey 64460, Nuevo León, Mexico; (E.M.M.-M.); (J.F.T.-F.); (D.A.S.-M.); (N.W.-M.); (L.A.P.-L.)
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