Crohn's disease (CD) is a chronic relapsing inflammatory bowel disease of unknown etiology. Genetic predisposition and dysbiotic gut microbiota are important factors in the pathogenesis of CD. In this study, we analyzed the taxonomic composition of the gut microbiota and genotypes of 24 single nucleotide polymorphisms (SNP) associated with the risk of CD. The studied cohorts included 96 CD patients and 24 healthy volunteers from Russia. Statistically significant differences were found in the allele frequencies for 8 SNPs and taxonomic composition of the gut microbiota in CD patients compared with controls. In addition, two types of gut microbiota communities were identified in CD patients. The main distinguishing driver of bacterial families for the first community type are and unclassified members of the order, and the second type is characterized by increased abundance of and . Differences in the allele frequencies of the rs9858542 (), rs3816769 (), and rs1793004 () were also found between groups of CD patients with different types of microbiota communities. These findings confirm the complex multifactorial nature of CD.
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| http://dx.doi.org/10.3390/ijms24097998 | DOI Listing |
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