OBJECTIVE To evaluate the impact of brief and sequential exposure to nystatin on the germ tube formation and cell surface hydrophobicity of oral isolates of Candida albicans obtained from patients infected with human immunodeficiency virus (HIV). MATERIALS AND METHODS After determining the minimum inhibitory concentration of nystatin, 10 oral isolates of C. albicans from 10 different HIV-infe...

Polyene macrolides nystatin and amphotericin B are widely used in the treatment of fungal infections. In order to characterize factors affecting polyene activity, we have isolated Saccharomyces cerevisiae mutants showing selective resistance to nystatin and amphotericin B. Characterization of two of these mutants (nystatin-resistant mutant X1/16 and amphotericin B-resistant mutant X3/33) is pre...

The aim of this study was to determine and compare the efficacy of treatment with fluconazole and nystatin in Brazilian women with vaginal Candida. In a population of 932 women, vaginal cultures were performed for yeasts, whether or not the women showed signs and symptoms of vulvovaginal candidiasis. Yeasts were isolated from 12.2% of the women (114/932): 53.2% of the yeasts were Candida albica...

OBJECTIVES: We developed a novel lipid formulation of nystatin suitable for parenteral administration, nystatin-intralipid (NYT-IL), with antifungal activity and reduced toxicity in mice. We investigated the pharmacokinetics, tissue distribution and immunomodulatory effect of NYT-IL in mice. METHODS: Nystatin levels in serum and organs were determined using HPLC after NYT-IL or nystatin adminis...

Intraspecific protoplast fusion, induced by polyethylene glycol and Ca2+, was carried out in various pairings between auxotrophic nystatin-sensitive, ergosterol-producing strains of Candida albicans and their nystatin-resistant, ergosterol-less mutants of different origins. Nutritionally-complemented stable heterozygous diploid hybrids were obtained, which proved to be sensitive, semi-resistant...

Nystatin is bacterial originated polyene antifungal agent. The aim of the study is to develop the niosomal nystatin gel for transdermal administration. Formulations were developed using thin film hydration technique. Developed formulations were characterized for particle size, shape, % entrapment efficiency, in vitro drug release, etc. After analyzing the results, best formulation is optimized ...

Nystatin (5 to 10 mug/ml) was fungicidal to Saccharomyces cerevisiae NCYC 361. There was an initial rapid uptake of nystatin by the yeast cells at 30 C, the uptake being pH dependent, with a maximum at low pH values (3 to 4). Photomicrographs indicated that nystatin-treated cells became granular. The effect of growth temperature on the subsequent sensitivity of the yeast cells to nystatin was i...

Polyene antibiotics are a group of macrolide lactones that have antifungal activity against a wide variety of fungi. Administration of this group of antibiotics have recently increased due to the use of immunosuppressive drugs and increasing incidence of AIDS (1,2). Nystatin, the first polyene drug to be identified, is active against a wide variety of fungal pathogens including Candida, Aspergi...

Background and Purpose: Denture stomatitis is a chronic inflammation disease of the oral mucosa, which is specified by erythematous lesions mainly in the upper palate. Nystatin as a polyene, a class of antifungal agents, is one of the effective drugs to treat denture stomatitis. Considering the expansion of utilizing herbal drugs to cure many kinds of diseases, the present study was conducted t...