Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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POTENTIAL GENETIC TARGETS FOR CONTROLLING CAMPYLOBACTER JEJUNI


ABSTRACT: Campylobacter jejuni is one of the leading causes of bacterial diarrhea worldwide and the most common antecedent in peripheral neuropathies such as Guillain Barré and Miller Fisher syndromes (Blaser et al., 2000). Despite the medical and socioeconomic importance of C. jejuni, the proportion of human disease caused by different sources of infection remains unclear. Indeed, this issue has hindered effective control strategies against reducing C. jejuni levels from the food chain. Up to date, a vast number of phenotypic and genotypic typing systems and a large number of databases have been developed in order to determine the different Campylobacter infection sources. However, traditional methods are unable to discriminate strains from different sources that are responsible for causing disease in humans. Interestingly, DNA microarrays represent a technological alternative to compare entire genomes, allowing the identification of all the genes present or absent in a particular strain by comparison with the genome of the reference strain present in the microarray. Previous comparative genomic hybridazation studies of C. jejuni using DNA microarrays have focused on the genetic variability in C. jejuni (Dorrell et al., 2001), which suggest that this organism has high levels of genetic diversity and low levels of genetic plasticity (Taboada et al., 2004). On that account, the aim of this study was based on a comparison by CGH (Comparative Genomic Hybridization) using DNA microarrays for determining the degree of genomic variability of C. jejuni strains from different geographical areas and sources of isolation. This system enabled us to identify possible genes that could be used as genetic markers predictive of infection source. Furthermore, CGH data provide additional information that could be useful for the formulation of new hypotheses about C. jejuni genome evolution, virulence, pathogenicity, and host specificity.

ORGANISM(S): Campylobacter jejuni

SUBMITTER: Héctor Velasco 

PROVIDER: E-MTAB-3550 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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