Abstract
Crohn disease (CD) burden has increased with globalization/urbanization, and the rapid rise is attributed to environmental changes rather than genetic drift. The Study Of Urban and Rural CD Evolution (SOURCE, n = 380) has considered diet-omics domains simultaneously to detect complex interactions and identify potential beneficial and pathogenic factors linked with rural-urban transition and CD. We characterize exposures, diet, ileal transcriptomics, metabolomics, and microbiome in newly diagnosed CD patients and controls in rural and urban China and Israel. We show that time spent by rural residents in urban environments is linked with changes in gut microbial composition and metabolomics, which mirror those seen in CD. Ileal transcriptomics highlights personal metabolic and immune gene expression modules, that are directly linked to potential protective dietary exposures (coffee, manganese, vitamin D), fecal metabolites, and the microbiome. Bacteria-associated metabolites are primarily linked with host immune modules, whereas diet-linked metabolites are associated with host epithelial metabolic functions.
Original language | English |
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Article number | 3764 |
Journal | Nature Communications |
Volume | 15 |
Issue number | 1 |
DOIs | |
Publication status | Published - 4 May 2024 |
Bibliographical note
We thank all study participants. Support for the SOURCE study was provided by the Helmsley Charitable Trust (E.E., S.B.H., Y.H.). Other support included the ERC starting grant (Y.H., grant No. 758313), Tel Aviv University’s Colton Center for Autoimmune Diseases (E.B., Y.H.), the Israel Science Foundation (Y.H., grant No. 785/22), the I-CORE program (Y.H., grants No. 41/11), Israel Science, Culture, and Sport (Y.H., grant no. 4361), and NIDDK P30 DK078392 (Integrative Morphology and Gene Expression Cores). The funding sources did not play a role in the writing of the manuscript or the decision to submit it for publication, and did not play a role in data collection, analysis, interpretation; trial design; patient recruitment; or any aspect pertaining to the study.Publisher Copyright:
© The Author(s) 2024.
All Science Journal Classification (ASJC) codes
- General Chemistry
- General Biochemistry,Genetics and Molecular Biology
- General Physics and Astronomy