alexa Fungi and inflammatory bowel diseases: Alterations of composition and diversity.
Genetics & Molecular Biology

Genetics & Molecular Biology

Fungal Genomics & Biology

Author(s): Ott SJ, Khbacher T, Musfeldt M, Rosenstiel P, Hellmig S,

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Abstract OBJECTIVE: Altered bacterial diversity of the intestinal mucosa-associated microbiota may reflect the net influence of lifestyle factors associated with the development of chronic inflammatory bowel diseases (IBD). While a reduced bacterial diversity has been reported in IBD, little is known about the fungal microbiota. The aim of this study was to carry out a systematic analysis of intestinal fungal microbiota in IBD. MATERIAL AND METHODS: The mucosa-associated fungal microbiota of 104 colonic biopsy tissues from 47 controls and 57 IBD patients was investigated using metagenomic 18S rDNA-based denaturing gradient gel electrophoresis (DGGE), clone libraries, sequencing, and in situ hybridization techniques. RESULTS: Fungi-specific 18S rDNA signatures could be detected in all 104 patients, accounting for only a small proportion of the intestinal microbiota (0.02\% of the mucosal and 0.03\% of the fecal microbiota). An overall fungal biodiversity of 43 different operational taxonomic units (OTUs) was found in the clone libraries. The qualitative composition of fungal microbiota was different between patients with IBD and controls. The DGGE profiles showed a higher mean fungal diversity in patients with Crohn's disease (CD) in comparison with controls (10.8+/-3.1 versus 6.2+/-2.4 for CD, p
  • DOI: 10.1080/00365520801935434
  • This article was published in Scand J Gastroenterol and referenced in Fungal Genomics & Biology

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