PCR detection of Brachyspira aalborgi and Brachyspira pilosicoli in human faeces

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)167-170
Journal / PublicationFEMS Microbiology Letters
Volume197
Issue number2
Publication statusPublished - 13 Apr 2001
Externally publishedYes

Abstract

Previously-developed PCR protocols specific for the 16S rRNA gene of the intestinal spirochaetes Brachyspira aalborgi and Brachyspira pilosicoli were adapted for the detection of these species in human faeces, following DNA extraction and purification using mini-prep columns. The limits of detection in seeded faeces for B. aalborgi and B. pilosicoli respectively were 2×102 and 7×103 cells per PCR reaction, equivalent to 5×104 and 1×105 cells per g of faeces. The PCR techniques were applied to faecal samples from two patients with histological evidence of intestinal spirochaetosis. In the first patient, in whom B. aalborgi had been identified by 16S rDNA PCR from colonic biopsies, a positive amplification for B. aalborgi only was obtained from the faeces. The organism could not be isolated from these faeces. In the second patient, both colonic biopsies and faeces were PCR positive for B. pilosicoli only, and B. pilosicoli was isolated from the faeces. These new faecal PCR protocols should be valuable for future studies on the epidemiology of intestinal spirochaete infections in human populations, particularly as it is not currently possible to isolate B. aalborgi from faeces. 

Research Area(s)

  • Brachyspira aalborgi, Brachyspira pilosicoli, Human faeces, Intestinal spirochaete, PCR

Citation Format(s)

PCR detection of Brachyspira aalborgi and Brachyspira pilosicoli in human faeces. / Mikosza, A. S J; La, T.; Margawani, K. R. et al.
In: FEMS Microbiology Letters, Vol. 197, No. 2, 13.04.2001, p. 167-170.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review