Instituto de Biología Agrícola de Mendoza (IBAM-CONICET), Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Mendoza, Argentina.
Instituto de Química San Luis (INQUISAL-CONICET), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina.
J Pharm Biomed Anal. 2019 Apr 15;167:15-20. doi: 10.1016/j.jpba.2019.01.026. Epub 2019 Jan 30.
Candida albicans is an opportunistic pathogenic yeast commonly found in mouth, gastrointestinal tract and vagina. Under certain conditions, it causes skin, mucosal and systemic infections. With growing concern over the emergence of resistant strains to conventional antifungals, the development of novel antifungal agents for the management of this pathogen is an urgent need. In the present work, novel bioextracts from folk medicinal plants were directly used as active ingredient in a topical formulation for dermal candidiasis. With the aim to replace hazardous traditional reagents, a natural solvent composed by lactic acid: glucose: water (LGH) was used as vehicle for bioactive compound extraction. Furthermore, phenolic and alkaloid composition were determined by HPLC and their individual antifungal effect was evaluated. LGH extracts of Larrea spices demonstrate a significant antimicrobial activity against C. albicans being higher than their individual bioactive constituents. Notably, the mixture of Larrea cuneifolia and L divaricata extracts in topical formulations reveal a synergistic antifungal effect highlighting their potential for candidiasis treatment.
白色念珠菌是一种常见的机会性致病性酵母,存在于口腔、胃肠道和阴道中。在某些条件下,它会引起皮肤、黏膜和全身感染。由于人们越来越关注对抗真菌药物的耐药菌株的出现,因此迫切需要开发新型抗真菌药物来治疗这种病原体。在本工作中,直接将民间药用植物的新型生物提取物用作皮肤念珠菌病局部制剂的活性成分。为了替代危险的传统试剂,使用由乳酸:葡萄糖:水(LGH)组成的天然溶剂作为生物活性化合物的提取载体。此外,通过 HPLC 测定了酚类和生物碱的组成,并评估了它们的单独抗真菌作用。拉雷亚植物的 LGH 提取物对白色念珠菌表现出显著的抗菌活性,高于其各自的生物活性成分。值得注意的是,局部制剂中拉雷亚角叶和 L 分裂的混合物提取物显示出协同的抗真菌作用,突出了它们在治疗念珠菌病方面的潜力。