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Table 2 HEp-2 invasiveness of the 36 AIEC isolated from patients with CD (CD1-4) and from non-IBD controls (Control 1-4)

From: Adherent-invasive Escherichia coli (AIEC) in pediatric Crohn’s disease patients: phenotypic and genetic pathogenic features

Sample origin

N of invasive strains

a(%) Average invasion level

CD1

14

0.50 ± 0.15

CD2

9

0.40 ± 0.11

CD3

8

0.88 ± 0.27

CD4

0

--

Control 1

4

0.67 ± 0.10

Control 2

1

0.52 ± 0.15

Control 3

0

--

Control 4

0

--

Reference strains

E. coli LF82

0.95 ± 0.30

E. coli DH5α

0.007 ± 0.005

  1. aValues represent the mean percentages ± standard deviations of the means of internalised bacteria and are expressed as the ratio of intracellular CFU/number of bacteria used to infect cell monolayers X 100. Data represent mean and standard errors of three independent experiments, in duplicate.
  2. --, not determined.
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BMC Research Notes

ISSN: 1756-0500

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