Candida albicans 237

Flucytosine. Flucytosine (17) or 5-fluorocytosine (4-amino-5-fluoro-2-pyrimidone, 5-FC), C H FN O, is a pyrimidine derivative, that is efficient against Candida albicans Cryptococcus neoformans and Torulopsis glabrata. 

Silicone reliners are supplied as either a one-component system that cures in the presence of moisture or heat, or a two-component system containing base and catalyst. Both types adhere poody to denture base and carmot be polished satisfactorily. Some silicones support propagation of bacteria such as Candida albicans. Acrylic-based sifloxane monomers and resins have been proposed for overcoming these deficiencies (211). 

Fenticonazole (106), on the other hand, is used topically to combat a wide variety of dermatophytes and yeasts, particularly Candida albicans. It can be synthesized from 2,4-dichlo-rophenacyl chloride (104) by reduction with borohydride and subsequent displacement with imidazole to give 105. This last undergoes ether formation with p-thiolphenylbenzyl chloride mediated by NaH to produce fcnticonazole (106) [37]. 

The superficial mycotic infections occur on the surface of, or just below, the skin or nails. Superficial infections include tinea pedis (athlete s foot), tinea cruris (jock itch), tinea corporis (ringworm), onychomycosis (nail fungus), and yeast infections, such as those caused by Candida albicans. Yeast infections or those caused by C. albicans affect women in the vulvovaginal area and can be difficult to control. Women who are at increased risk for vulvovaginal yeast infections are those who have diabetes, are pregnant, or are taking oral contraceptives, antibiotics, or corticosteroids. 

CORTICOSTEROID INHALANTS. The inhalers, particularly die corticosteroid or mast cell aerosols, may cause tiiroat irritation and infection with Candida albicans. The nurse instructs the patient to use strict oral hygiene, cleanse die inhaler as directed in die package directions, and use die proper technique when taking an inhalation. These interventions will decrease die incidence of candidiasis and help to soodie die throat. Occasionally an antifungal drug may be prescribed by die primary health care provider to manage the candidiasis. 

Lopez-Berestein, G., Metha, R., Hopfer, R. L., Mills, K., Kasi, L., Metha, K., Fainstein, V., Luna, M., Hersh, E. M., and Juliano, R. L. (1983). Treatment and prophylaxis of disseminated infection due to Candida albicans in mice with liposome-encapsulated amphotericin B, J. Infect. Pis.. 147, 939-945. 

Altered tissue distribution of amphotericin B by liposomal encapsulation Comparison of normal mice and mice infected with Candida albicans. Cancer Drug Deliv., 1, 199-205. 

Fig. 2.7 Germ tube formation by Candida albicans. For simplicity the diagram merely illustrates the nuclear content of the parental yeast cell and the developing germ tube. In real life there is a complex rearrangement of cytoplasmic constituents which results in all parts except the apex becoming highly vacuolated.

Sanjuan R., Zueco J., Stock R., Font de Mora J. Sentandreu R. (1995) Identification of glucan-mannoprotein complexes in the cell wall of Candida albicans using a monoclonal antibody that reacts with a (l,6)-/3-glucan epitope. Mzcroftzo/ogy, 141, 1545-1551. 

Soil D.R., Galask R., Isley S. et al. (1989) Switching of Candida albicans during recurrent episodes of recurrent vaginitis. 7 C/mM/craftzo/, 27, 681-690. 

For example, Candida albicans and (especially) Aspergillus niger are much more resistant to a variety of biocides than Gram-positive and Gram-negative bacteria. 

Sixteen yeast and 12 fungal genomes have been screened 33 BVMOs discovered in fungi and three in the yeast Candida albicans SC5314. 

Shyadehi AZ, DC Lamb, SL Kelly, DE Kelly, W-H Schunck, JN Wright, D Corina, M Akhtar (1996) The mechanism of the acyl-carbon bond cleavage reaction catalyzed by recombinant sterol 14a-demethyl-ase of Candida albicans (other names are lanosterol 14a-demethylase, P-450]4p, and CYP51). J Biol Chem 271 12445-12450. 

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