Abstract
By using the computer-assisted Dendron system to analyze the patterns of Southern blots probed with the repetitive sequence Ca3, we have compared oral isolates of Candida spp. from a group of 11 nonhospitalized patients with AIDS suffering from recurrent episodes of oral thrush in Leicester, England, with oral isolates from a group of control individuals. Genetic diversity among the AIDS strains was significantly reduced compared with that of control strains. In addition, the same strains persisted through recurrent infections in patients with AIDS. Although AIDS strains were genetically less diverse than either control strains or oral commensal strains analyzed in previous studies, the majority did not form a genetically distinct group. The results of this study suggest that in the majority of patients with AIDS in this group from Leicester, original commensal strains were replaced, replacement occurred early in the manifestation of AIDS, and replacement occurred only once.
Full text
PDFImages in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Brawner D. L., Cutler J. E. Oral Candida albicans isolates from nonhospitalized normal carriers, immunocompetent hospitalized patients, and immunocompromised patients with or without acquired immunodeficiency syndrome. J Clin Microbiol. 1989 Jun;27(6):1335–1341. doi: 10.1128/jcm.27.6.1335-1341.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Greenspan D., Greenspan J. S. The oral clinical features of HIV infection. Gastroenterol Clin North Am. 1988 Sep;17(3):535–543. [PubMed] [Google Scholar]
- Klein R. S., Harris C. A., Small C. B., Moll B., Lesser M., Friedland G. H. Oral candidiasis in high-risk patients as the initial manifestation of the acquired immunodeficiency syndrome. N Engl J Med. 1984 Aug 9;311(6):354–358. doi: 10.1056/NEJM198408093110602. [DOI] [PubMed] [Google Scholar]
- Sadhu C., McEachern M. J., Rustchenko-Bulgac E. P., Schmid J., Soll D. R., Hicks J. B. Telomeric and dispersed repeat sequences in Candida yeasts and their use in strain identification. J Bacteriol. 1991 Jan;173(2):842–850. doi: 10.1128/jb.173.2.842-850.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Scherer S., Stevens D. A. Application of DNA typing methods to epidemiology and taxonomy of Candida species. J Clin Microbiol. 1987 Apr;25(4):675–679. doi: 10.1128/jcm.25.4.675-679.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schmid J., Voss E., Soll D. R. Computer-assisted methods for assessing strain relatedness in Candida albicans by fingerprinting with the moderately repetitive sequence Ca3. J Clin Microbiol. 1990 Jun;28(6):1236–1243. doi: 10.1128/jcm.28.6.1236-1243.1990. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soll D. R., Galask R., Isley S., Rao T. V., Stone D., Hicks J., Schmid J., Mac K., Hanna C. Switching of Candida albicans during successive episodes of recurrent vaginitis. J Clin Microbiol. 1989 Apr;27(4):681–690. doi: 10.1128/jcm.27.4.681-690.1989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soll D. R., Galask R., Schmid J., Hanna C., Mac K., Morrow B. Genetic dissimilarity of commensal strains of Candida spp. carried in different anatomical locations of the same healthy women. J Clin Microbiol. 1991 Aug;29(8):1702–1710. doi: 10.1128/jcm.29.8.1702-1710.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soll D. R., Langtimm C. J., McDowell J., Hicks J., Galask R. High-frequency switching in Candida strains isolated from vaginitis patients. J Clin Microbiol. 1987 Sep;25(9):1611–1622. doi: 10.1128/jcm.25.9.1611-1622.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Soll D. R., Staebell M., Langtimm C., Pfaller M., Hicks J., Rao T. V. Multiple Candida strains in the course of a single systemic infection. J Clin Microbiol. 1988 Aug;26(8):1448–1459. doi: 10.1128/jcm.26.8.1448-1459.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Torssander J., Morfeldt-Månson L., Biberfeld G., Karlsson A., Putkonen P. O., Wasserman J. Oral candida albicans in HIV infection. Scand J Infect Dis. 1987;19(3):291–295. doi: 10.3109/00365548709018473. [DOI] [PubMed] [Google Scholar]
- Tylenda C. A., Larsen J., Yeh C. K., Lane H. C., Fox P. C. High levels of oral yeasts in early HIV-1 infection. J Oral Pathol Med. 1989 Oct;18(9):520–524. doi: 10.1111/j.1600-0714.1989.tb01355.x. [DOI] [PubMed] [Google Scholar]
- Whelan W. L., Kirsch D. R., Kwon-Chung K. J., Wahl S. M., Smith P. D. Candida albicans in patients with the acquired immunodeficiency syndrome: absence of a novel of hypervirulent strain. J Infect Dis. 1990 Aug;162(2):513–518. doi: 10.1093/infdis/162.2.513. [DOI] [PubMed] [Google Scholar]
- Yeh C. K., Fox P. C., Ship J. A., Busch K. A., Bermudez D. K., Wilder A. M., Katz R. W., Wolff A., Tylenda C. A., Atkinson J. C. Oral defense mechanisms are impaired early in HIV-1 infected patients. J Acquir Immune Defic Syndr. 1988;1(4):361–366. [PubMed] [Google Scholar]