PMID- 36303897 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221029 IS - 2405-8440 (Print) IS - 2405-8440 (Electronic) IS - 2405-8440 (Linking) VI - 8 IP - 10 DP - 2022 Oct TI - Antifungal potential of isoespintanol extracted from Oxandra xylopioides diels (Annonaceae) against intrahospital isolations of Candida SPP. PG - e11110 LID - 10.1016/j.heliyon.2022.e11110 [doi] LID - e11110 AB - The aim of this study was to evaluate the antifungal activity of isoespintanol (ISO) extracted from Oxandra xylopioides Diels (Annonaceae) against clinical isolates of Candida spp. Isoespintanol was obtained from the petroleum benzine extract of the leaves and was identified by nuclear magnetic resonance (NMR) and mass spectrometry (MS). For antifungal activity experiments, the broth microdilution method was used. The results show an inhibitory effect against Candida spp., with minimum inhibitory concentration (MIC) values between 450.4-503.3 mug/mL. Furthermore, the inhibitory effect of ISO against fungal biofilms is highlighted, even in some cases, greater than the effect shown by amphotericin B (AFB) and in others, where AFB showed no effect. Assays with fluorescent staining with acridine orange (AO) and ethidium bromide (EB), transmission electron microscopy (TEM), Evans blue, measurement of extracellular pH and leakage of intracellular material, evidenced damage at the level of fungal membranes and general cell damage, when cells were exposed to ISO, compared to untreated cells. The results of this research, serve as the basis for future studies in the establishment of the mechanisms of antifungal action of ISO, which could serve as an adjunct in the treatment of infections by these yeasts. CI - (c) 2022 The Author(s). FAU - Contreras Martinez, Orfa Ines AU - Contreras Martinez OI AD - Universidad de Cordoba, Facultad de Ciencias Basicas, Monteria, Cordoba, Colombia. FAU - Ortiz, Alberto Angulo AU - Ortiz AA AD - Universidad de Cordoba, Facultad de Ciencias Basicas, Monteria, Cordoba, Colombia. FAU - Patino, Gilmar Santafe AU - Patino GS AD - Universidad de Cordoba, Facultad de Ciencias Basicas, Monteria, Cordoba, Colombia. LA - eng PT - Journal Article DEP - 20221018 PL - England TA - Heliyon JT - Heliyon JID - 101672560 PMC - PMC9593293 OTO - NOTNLM OT - Antifungal OT - Candida spp. OT - Isoespintanol OT - Oxandra xylopioides COIS- The authors declare no conflict of interest. EDAT- 2022/10/29 06:00 MHDA- 2022/10/29 06:01 PMCR- 2022/10/18 CRDT- 2022/10/28 02:40 PHST- 2021/12/12 00:00 [received] PHST- 2022/04/24 00:00 [revised] PHST- 2022/10/11 00:00 [accepted] PHST- 2022/10/28 02:40 [entrez] PHST- 2022/10/29 06:00 [pubmed] PHST- 2022/10/29 06:01 [medline] PHST- 2022/10/18 00:00 [pmc-release] AID - S2405-8440(22)02398-2 [pii] AID - e11110 [pii] AID - 10.1016/j.heliyon.2022.e11110 [doi] PST - epublish SO - Heliyon. 2022 Oct 18;8(10):e11110. doi: 10.1016/j.heliyon.2022.e11110. eCollection 2022 Oct.