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The importance of strain variation in virulence of Candida dubliniensis and Candida albicans: results of a blinded histopathological study of invasive.

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Presentation on theme: "The importance of strain variation in virulence of Candida dubliniensis and Candida albicans: results of a blinded histopathological study of invasive."— Presentation transcript:

1 The importance of strain variation in virulence of Candida dubliniensis and Candida albicans: results of a blinded histopathological study of invasive candidiasis  L.R. Ásmundsdóttir, H. Erlendsdóttir, B.A. Agnarsson, M. Gottfredsson  Clinical Microbiology and Infection  Volume 15, Issue 6, Pages (June 2009) DOI: /j x Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions

2 FIG. 1. Quantification of tissue burden of organisms and inflammatory responses in kidneys of animals infected with Candida albicans and C. dubliniensis. A scoring system of 0–4 for each parameter was developed. For quantification of fungal load, kidney slices were stained by methenamine-silver stain and scored as 0 (if no yeasts were visible) or as 1, 2, 3 or 4 (figures a, b, c and d, respectively). For estimation of inflammatory responses, slices were stained with haematoxylin-eosin stain (H&E) and the amount of inflammatory cells was scored in the same way as fungal load (figures e, f, g and h, respectively). Magnification 310×. Clinical Microbiology and Infection  , DOI: ( /j x) Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions

3 FIG. 2. Phylogenetic relationships of the Candida isolates used in this study as determined by PCR fingerprinting. Combined results from PCR with four single primers [M13; (GACA)4; PA03; T3B] are shown. Unweighted pair-group method using average linkages and the Dice coefficient were used to construct the dendrogram. The genotypes of the C. dubliniensis isolates are given on the right. *Isolate IS-124 yielded an amplimer with both genotype 1- and genotype 2-specific primer pairs. Clinical Microbiology and Infection  , DOI: ( /j x) Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions

4 FIG. 3. Survival of mice infected by Candida albicans (three isolates, n = 99) compared with C. dubliniensis (nine isolates, n = 157). Survival was monitored three times daily for 1 week. Other C. dubliniensis strains: IS-124; IS-176; CD-541; 1329; 1862; and CBS 8500. Clinical Microbiology and Infection  , DOI: ( /j x) Copyright © 2009 European Society of Clinical Infectious Diseases Terms and Conditions


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